Segmentation fault on renderer creation with WSLg

[thomas-touhey]

With SDL2, creating a software renderer using SDL_CreateRenderer(window, -1, SDL_RENDERER_SOFTWARE) causes a segmentation fault on ArchWSL with WSLg on WSL 2, while the expected behaviour would (probably) be to fail with an error.

As found by the original issue reporter, creating /etc/tmpfiles.d/wslg.conf with the following content then restarting the WSL session solves the problem (source):

# Type Path           Mode UID  GID  Age Argument
L+     /tmp/.X11-unix -    -    -    -   /mnt/wslg/.X11-unix

However the program still shouldn't have segfaulted, and should have just printed Couldn't create the renderer: xyz then exited.

A minimal program to produce the crash is the following:

sdl2_crash.c

/* Compile with `gcc sdl2_crash.c -g $(pkg-config sdl2 --cflags --libs)` */

#include <SDL.h>

int main() {
    int ret = 1;
    int sdl_initialized = 0;
    SDL_Window *window = NULL;
    SDL_Renderer *renderer = NULL;
    SDL_Texture *texture = NULL;
    SDL_Event event;
    Uint32 *pixels;
    int pitch;
    int i;

    if (SDL_InitSubSystem(SDL_INIT_VIDEO | SDL_INIT_EVENTS)) {
        fprintf(stderr, "Failed to initialize SDL: %s\n", SDL_GetError());
        goto fail;
    }
    sdl_initialized = 1;

    window = SDL_CreateWindow(
        "renderer crash on WSL",
        SDL_WINDOWPOS_UNDEFINED,
        SDL_WINDOWPOS_UNDEFINED,
        128,
        64,
        0
    );
    if (!window) {
        fprintf(
            stderr,
            "Couldn't create the window: %s\n",
            SDL_GetError()
        );
        goto fail;
    }

    /* Then let's create the renderer. */
    renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_SOFTWARE);
    if (!renderer) {
        fprintf(
            stderr,
            "Couldn't create the renderer: %s\n",
            SDL_GetError()
        );
        goto fail;
    }

    texture = SDL_CreateTexture(
        renderer,
        SDL_PIXELFORMAT_ARGB8888,
        SDL_TEXTUREACCESS_STREAMING,
        128,
        64
    );
    if (!texture) {
        fprintf(
            stderr,
            "Couldn't create the texture: %s\n",
            SDL_GetError()
        );
        return 1;
    }

    SDL_LockTexture(
        texture,
        NULL,
        (void **)&pixels,
        &pitch
    );

    for (i = 128 * 64 - 1; i >= 0; i--)
        pixels[i] = 0xFF0000;

    SDL_UnlockTexture(texture);
    SDL_RenderCopy(renderer, texture, NULL, NULL);
    SDL_RenderPresent(renderer);

    while (SDL_WaitEvent(&event)) {
        if (event.type == SDL_QUIT) {
            ret = 0;
            break;
        }
    }

    ret = 0;
fail:
    if (texture)
        SDL_DestroyTexture(texture);
    if (renderer)
        SDL_DestroyRenderer(renderer);
    if (window)
        SDL_DestroyWindow(window);
    if (sdl_initialized)
        SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_EVENTS);

    return ret;
}

When run with valgrind --leak-check=full --num-callers=500 ./a.out, the following output is created:

valgrind report of the crash

==2985== Memcheck, a memory error detector
==2985== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
==2985== Using Valgrind-3.23.0 and LibVEX; rerun with -h for copyright info
==2985== Command: ./a.out
==2985==
==2985== Conditional jump or move depends on uninitialised value(s)
==2985==    at 0x125DD9DC: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x125DE713: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x125A090F: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x125A58B5: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x125A1AD0: DXCoreCreateAdapterFactory (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x62C799B: get_dxcore_factory (d3d12_dxcore_screen.cpp:53)
==2985==    by 0x62C799B: d3d12_init_dxcore_screen(d3d12_screen*) (d3d12_dxcore_screen.cpp:184)
==2985==    by 0x62C7F14: d3d12_create_dxcore_screen (d3d12_dxcore_screen.cpp:243)
==2985==    by 0x56A1EEE: sw_screen_create_named (sw_helper.h:66)
==2985==    by 0x56A1EEE: sw_screen_create_vk (sw_helper.h:90)
==2985==    by 0x5DEE6CC: pipe_loader_sw_create_screen (pipe_loader_sw.c:427)
==2985==    by 0x5DEE5FF: pipe_loader_create_screen_vk (pipe_loader.c:181)
==2985==    by 0x56C926E: drisw_init_screen (drisw.c:603)
==2985==    by 0x56D30BF: driCreateNewScreen3 (dri_util.c:140)
==2985==    by 0x5639FAD: dri2_create_screen (egl_dri2.c:927)
==2985==    by 0x563BB5B: dri2_initialize_device (platform_device.c:365)
==2985==    by 0x563A9E8: dri2_initialize (egl_dri2.c:1058)
==2985==    by 0x562894B: eglInitialize (eglapi.c:699)
==2985==    by 0x4947868: UnknownInlinedFun (SDL_egl.c:623)
==2985==    by 0x4947868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2985==    by 0x4947868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2985==    by 0x492FF52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2985==    by 0x492EBF1: SDL_RecreateWindow (SDL_video.c:1990)
==2985==    by 0x48BCAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2985==    by 0x48B20BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2985==    by 0x492BC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2711)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2772)
==2985==    by 0x493036F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2985==    by 0x48DCBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2985==    by 0x48B24AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2985==    by 0x10931B: main (sdl2_crash.c:40)
==2985==
==2985== Conditional jump or move depends on uninitialised value(s)
==2985==    at 0x125DE272: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x125DE713: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x125A090F: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x125A58B5: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x125A1AD0: DXCoreCreateAdapterFactory (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x62C799B: get_dxcore_factory (d3d12_dxcore_screen.cpp:53)
==2985==    by 0x62C799B: d3d12_init_dxcore_screen(d3d12_screen*) (d3d12_dxcore_screen.cpp:184)
==2985==    by 0x62C7F14: d3d12_create_dxcore_screen (d3d12_dxcore_screen.cpp:243)
==2985==    by 0x56A1EEE: sw_screen_create_named (sw_helper.h:66)
==2985==    by 0x56A1EEE: sw_screen_create_vk (sw_helper.h:90)
==2985==    by 0x5DEE6CC: pipe_loader_sw_create_screen (pipe_loader_sw.c:427)
==2985==    by 0x5DEE5FF: pipe_loader_create_screen_vk (pipe_loader.c:181)
==2985==    by 0x56C926E: drisw_init_screen (drisw.c:603)
==2985==    by 0x56D30BF: driCreateNewScreen3 (dri_util.c:140)
==2985==    by 0x5639FAD: dri2_create_screen (egl_dri2.c:927)
==2985==    by 0x563BB5B: dri2_initialize_device (platform_device.c:365)
==2985==    by 0x563A9E8: dri2_initialize (egl_dri2.c:1058)
==2985==    by 0x562894B: eglInitialize (eglapi.c:699)
==2985==    by 0x4947868: UnknownInlinedFun (SDL_egl.c:623)
==2985==    by 0x4947868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2985==    by 0x4947868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2985==    by 0x492FF52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2985==    by 0x492EBF1: SDL_RecreateWindow (SDL_video.c:1990)
==2985==    by 0x48BCAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2985==    by 0x48B20BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2985==    by 0x492BC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2711)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2772)
==2985==    by 0x493036F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2985==    by 0x48DCBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2985==    by 0x48B24AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2985==    by 0x10931B: main (sdl2_crash.c:40)
==2985==
==2985== Syscall param ioctl(generic) points to uninitialised byte(s)
==2985==    at 0x4B49CED: ioctl (ioctl.c:36)
==2985==    by 0x12616712: D3DKMTQueryAdapterInfo (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x12A543FA: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x12E01452: ??? (in /usr/lib/wsl/drivers/iigd_dch.inf_amd64_9741ef1f4093481f/libigd12umd64.so)
==2985==    by 0x12E010D0: OpenAdapter12 (in /usr/lib/wsl/drivers/iigd_dch.inf_amd64_9741ef1f4093481f/libigd12umd64.so)
==2985==    by 0x12A67780: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x12A536A7: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x12982B2B: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x1298287F: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x12983488: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x12984E3F: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x1293D962: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x62C9849: create_device (d3d12_screen.cpp:1020)
==2985==    by 0x62C9849: d3d12_init_screen(d3d12_screen*, IUnknown*) (d3d12_screen.cpp:1557)
==2985==    by 0x62C7CCA: d3d12_init_dxcore_screen(d3d12_screen*) (d3d12_dxcore_screen.cpp:220)
==2985==    by 0x62C7F14: d3d12_create_dxcore_screen (d3d12_dxcore_screen.cpp:243)
==2985==    by 0x56A1EEE: sw_screen_create_named (sw_helper.h:66)
==2985==    by 0x56A1EEE: sw_screen_create_vk (sw_helper.h:90)
==2985==    by 0x5DEE6CC: pipe_loader_sw_create_screen (pipe_loader_sw.c:427)
==2985==    by 0x5DEE5FF: pipe_loader_create_screen_vk (pipe_loader.c:181)
==2985==    by 0x56C926E: drisw_init_screen (drisw.c:603)
==2985==    by 0x56D30BF: driCreateNewScreen3 (dri_util.c:140)
==2985==    by 0x5639FAD: dri2_create_screen (egl_dri2.c:927)
==2985==    by 0x563BB5B: dri2_initialize_device (platform_device.c:365)
==2985==    by 0x563A9E8: dri2_initialize (egl_dri2.c:1058)
==2985==    by 0x562894B: eglInitialize (eglapi.c:699)
==2985==    by 0x4947868: UnknownInlinedFun (SDL_egl.c:623)
==2985==    by 0x4947868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2985==    by 0x4947868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2985==    by 0x492FF52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2985==    by 0x492EBF1: SDL_RecreateWindow (SDL_video.c:1990)
==2985==    by 0x48BCAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2985==    by 0x48B20BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2985==    by 0x492BC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2711)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2772)
==2985==    by 0x493036F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2985==    by 0x48DCBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2985==    by 0x48B24AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2985==    by 0x10931B: main (sdl2_crash.c:40)
==2985==  Address 0x1ffeff8b44 is on thread 1's stack
==2985==  in frame #1, created by D3DKMTQueryAdapterInfo (???:)
==2985==
==2985== Syscall param ioctl(generic) points to uninitialised byte(s)
==2985==    at 0x4B49CED: ioctl (ioctl.c:36)
==2985==    by 0x12616712: D3DKMTQueryAdapterInfo (in /usr/lib/wsl/lib/libdxcore.so)
==2985==    by 0x12A543FA: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x12E0148B: ??? (in /usr/lib/wsl/drivers/iigd_dch.inf_amd64_9741ef1f4093481f/libigd12umd64.so)
==2985==    by 0x12E01107: OpenAdapter12 (in /usr/lib/wsl/drivers/iigd_dch.inf_amd64_9741ef1f4093481f/libigd12umd64.so)
==2985==    by 0x12A67780: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x12A536A7: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x12982B2B: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x1298287F: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x12983488: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x12984E3F: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x1293D962: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2985==    by 0x62C9849: create_device (d3d12_screen.cpp:1020)
==2985==    by 0x62C9849: d3d12_init_screen(d3d12_screen*, IUnknown*) (d3d12_screen.cpp:1557)
==2985==    by 0x62C7CCA: d3d12_init_dxcore_screen(d3d12_screen*) (d3d12_dxcore_screen.cpp:220)
==2985==    by 0x62C7F14: d3d12_create_dxcore_screen (d3d12_dxcore_screen.cpp:243)
==2985==    by 0x56A1EEE: sw_screen_create_named (sw_helper.h:66)
==2985==    by 0x56A1EEE: sw_screen_create_vk (sw_helper.h:90)
==2985==    by 0x5DEE6CC: pipe_loader_sw_create_screen (pipe_loader_sw.c:427)
==2985==    by 0x5DEE5FF: pipe_loader_create_screen_vk (pipe_loader.c:181)
==2985==    by 0x56C926E: drisw_init_screen (drisw.c:603)
==2985==    by 0x56D30BF: driCreateNewScreen3 (dri_util.c:140)
==2985==    by 0x5639FAD: dri2_create_screen (egl_dri2.c:927)
==2985==    by 0x563BB5B: dri2_initialize_device (platform_device.c:365)
==2985==    by 0x563A9E8: dri2_initialize (egl_dri2.c:1058)
==2985==    by 0x562894B: eglInitialize (eglapi.c:699)
==2985==    by 0x4947868: UnknownInlinedFun (SDL_egl.c:623)
==2985==    by 0x4947868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2985==    by 0x4947868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2985==    by 0x492FF52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2985==    by 0x492EBF1: SDL_RecreateWindow (SDL_video.c:1990)
==2985==    by 0x48BCAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2985==    by 0x48B20BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2985==    by 0x492BC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2711)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2772)
==2985==    by 0x493036F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2985==    by 0x48DCBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2985==    by 0x48B24AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2985==    by 0x10931B: main (sdl2_crash.c:40)
==2985==  Address 0x1ffeff8b44 is on thread 1's stack
==2985==  in frame #1, created by D3DKMTQueryAdapterInfo (???:)
==2985==
==2985== Warning: invalid file descriptor -1 in syscall close()
==2985==
==2985== HEAP SUMMARY:
==2985==     in use at exit: 354,590 bytes in 2,471 blocks
==2985==   total heap usage: 102,856 allocs, 100,385 frees, 77,655,799 bytes allocated
==2985==
==2985== 112 (56 direct, 56 indirect) bytes in 1 blocks are definitely lost in loss record 2,311 of 2,371
==2985==    at 0x484BC13: calloc (vg_replace_malloc.c:1675)
==2985==    by 0x637365E: ???
==2985==    by 0x5DEE1F4: ???
==2985==    by 0x5DD6711: ???
==2985==    by 0x5DD68F7: ???
==2985==    by 0x5D81766: ???
==2985==    by 0x5D84621: ???
==2985==    by 0x5D7EFF5: ???
==2985==    by 0x5D20500: ???
==2985==    by 0x5D67AB9: ???
==2985==    by 0x5D633A8: ???
==2985==    by 0x5CEDB02: ???
==2985==    by 0x5CE6529: ???
==2985==    by 0x5CE69A7: ???
==2985==    by 0x5CE6E6C: ???
==2985==    by 0x5E16497: ???
==2985==    by 0x593F306: ???
==2985==    by 0x48BB534: GL_RunCommandQueue (SDL_render_gl.c:1374)
==2985==    by 0x48AEB70: FlushRenderCommands.lto_priv.0 (SDL_render.c:249)
==2985==    by 0x48B57D7: UnknownInlinedFun (SDL_render.c:278)
==2985==    by 0x48B57D7: SDL_RenderCopyF_REAL (SDL_render.c:3509)
==2985==    by 0x492AFD4: UnknownInlinedFun (SDL_render.c:3404)
==2985==    by 0x492AFD4: SDL_UpdateWindowTexture.lto_priv.0 (SDL_video.c:374)
==2985==    by 0x492FD73: SDL_UpdateWindowSurface_REAL (SDL_video.c:2791)
==2985==    by 0x48B7B6D: UnknownInlinedFun (SDL_render.c:4269)
==2985==    by 0x48B7B6D: SDL_RenderPresent_REAL (SDL_render.c:4255)
==2985==    by 0x109422: main (sdl2_crash.c:78)
==2985==
==2985== 512 bytes in 1 blocks are possibly lost in loss record 2,347 of 2,371
==2985==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==2985==    by 0x40112F0: malloc (rtld-malloc.h:56)
==2985==    by 0x40112F0: _dl_resize_dtv (dl-tls.c:527)
==2985==    by 0x4011C71: _dl_update_slotinfo (dl-tls.c:849)
==2985==    by 0x4011DA3: update_get_addr (dl-tls.c:967)
==2985==    by 0x4014C9B: __tls_get_addr (tls_get_addr.S:55)
==2985==    by 0x10100F54: __cxa_get_globals (eh_globals.cc:62)
==2985==    by 0x101021C0: __cxa_throw (eh_throw.cc:83)
==2985==    by 0x1327A160: ???
==2985==    by 0x1327114B: ???
==2985==    by 0x1326F4CB: ???
==2985==    by 0x13241E2E: ???
==2985==    by 0x12E012C4: ???
==2985==    by 0x12E0115C: ???
==2985==    by 0x12A67780: ???
==2985==    by 0x12A536A7: ???
==2985==    by 0x12982B2B: ???
==2985==    by 0x1298287F: ???
==2985==    by 0x12983488: ???
==2985==    by 0x12984E3F: ???
==2985==    by 0x1293D962: ???
==2985==    by 0x62C9849: ???
==2985==    by 0x62C7CCA: ???
==2985==    by 0x62C7F14: ???
==2985==    by 0x56A1EEE: ???
==2985==    by 0x5DEE6CC: ???
==2985==    by 0x5DEE5FF: ???
==2985==    by 0x56C926E: ???
==2985==    by 0x56D30BF: ???
==2985==    by 0x5639FAD: ???
==2985==    by 0x563BB5B: ???
==2985==    by 0x563A9E8: ???
==2985==    by 0x562894B: ???
==2985==    by 0x4947868: UnknownInlinedFun (SDL_egl.c:623)
==2985==    by 0x4947868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2985==    by 0x4947868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2985==    by 0x492FF52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2985==    by 0x492EBF1: SDL_RecreateWindow (SDL_video.c:1990)
==2985==    by 0x48BCAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2985==    by 0x48B20BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2985==    by 0x492BC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2711)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2772)
==2985==    by 0x493036F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2985==    by 0x48DCBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2985==    by 0x48B24AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2985==    by 0x10931B: main (sdl2_crash.c:40)
==2985==
==2985== 2,688 bytes in 1 blocks are definitely lost in loss record 2,360 of 2,371
==2985==    at 0x484BC13: calloc (vg_replace_malloc.c:1675)
==2985==    by 0x5633D2F: ???
==2985==    by 0x56346BE: ???
==2985==    by 0x5613941: ???
==2985==    by 0x494784F: UnknownInlinedFun (SDL_egl.c:617)
==2985==    by 0x494784F: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2985==    by 0x494784F: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2985==    by 0x492FF52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2985==    by 0x492EBF1: SDL_RecreateWindow (SDL_video.c:1990)
==2985==    by 0x48BCAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2985==    by 0x48B20BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2985==    by 0x492BC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2711)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2772)
==2985==    by 0x493036F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2985==    by 0x48DCBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2985==    by 0x48B24AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2985==    by 0x10931B: main (sdl2_crash.c:40)
==2985==
==2985== 30,264 (24 direct, 30,240 indirect) bytes in 1 blocks are definitely lost in loss record 2,368 of 2,371
==2985==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==2985==    by 0x13241DD6: ???
==2985==    by 0x12E012C4: ???
==2985==    by 0x12E0115C: ???
==2985==    by 0x12A67780: ???
==2985==    by 0x12A536A7: ???
==2985==    by 0x12982B2B: ???
==2985==    by 0x1298287F: ???
==2985==    by 0x12983488: ???
==2985==    by 0x12984E3F: ???
==2985==    by 0x1293D962: ???
==2985==    by 0x62C9849: ???
==2985==    by 0x62C7CCA: ???
==2985==    by 0x62C7F14: ???
==2985==    by 0x56A1EEE: ???
==2985==    by 0x5DEE6CC: ???
==2985==    by 0x5DEE5FF: ???
==2985==    by 0x56C926E: ???
==2985==    by 0x56D30BF: ???
==2985==    by 0x5639FAD: ???
==2985==    by 0x563BB5B: ???
==2985==    by 0x563A9E8: ???
==2985==    by 0x562894B: ???
==2985==    by 0x4947868: UnknownInlinedFun (SDL_egl.c:623)
==2985==    by 0x4947868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2985==    by 0x4947868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2985==    by 0x492FF52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2985==    by 0x492EBF1: SDL_RecreateWindow (SDL_video.c:1990)
==2985==    by 0x48BCAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2985==    by 0x48B20BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2985==    by 0x492BC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2711)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2772)
==2985==    by 0x493036F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2985==    by 0x48DCBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2985==    by 0x48B24AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2985==    by 0x10931B: main (sdl2_crash.c:40)
==2985==
==2985== 30,264 (24 direct, 30,240 indirect) bytes in 1 blocks are definitely lost in loss record 2,369 of 2,371
==2985==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==2985==    by 0x13241DD6: ???
==2985==    by 0x12E012C4: ???
==2985==    by 0x12E0115C: ???
==2985==    by 0x12A67780: ???
==2985==    by 0x12A536A7: ???
==2985==    by 0x12982B2B: ???
==2985==    by 0x1298287F: ???
==2985==    by 0x12983488: ???
==2985==    by 0x12984E3F: ???
==2985==    by 0x1293D962: ???
==2985==    by 0x62C9A26: ???
==2985==    by 0x62C7CCA: ???
==2985==    by 0x62C7F14: ???
==2985==    by 0x56A1EEE: ???
==2985==    by 0x5DEE6CC: ???
==2985==    by 0x5DEE5FF: ???
==2985==    by 0x56C926E: ???
==2985==    by 0x56D30BF: ???
==2985==    by 0x5639FAD: ???
==2985==    by 0x563BB5B: ???
==2985==    by 0x563A9E8: ???
==2985==    by 0x562894B: ???
==2985==    by 0x4947868: UnknownInlinedFun (SDL_egl.c:623)
==2985==    by 0x4947868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2985==    by 0x4947868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2985==    by 0x492FF52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2985==    by 0x492EBF1: SDL_RecreateWindow (SDL_video.c:1990)
==2985==    by 0x48BCAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2985==    by 0x48B20BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2985==    by 0x492BC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2711)
==2985==    by 0x493036F: UnknownInlinedFun (SDL_video.c:2772)
==2985==    by 0x493036F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2985==    by 0x48DCBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2985==    by 0x48B24AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2985==    by 0x10931B: main (sdl2_crash.c:40)
==2985==
==2985== LEAK SUMMARY:
==2985==    definitely lost: 2,792 bytes in 4 blocks
==2985==    indirectly lost: 60,536 bytes in 3 blocks
==2985==      possibly lost: 512 bytes in 1 blocks
==2985==    still reachable: 290,670 bytes in 2,461 blocks
==2985==         suppressed: 80 bytes in 2 blocks
==2985== Reachable blocks (those to which a pointer was found) are not shown.
==2985== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==2985==
==2985== Use --track-origins=yes to see where uninitialised values come from
==2985== For lists of detected and suppressed errors, rerun with: -s
==2985== ERROR SUMMARY: 11 errors from 9 contexts (suppressed: 2 from 2)

Originally reported on Cahute as issue #57.

[slouken]

Do you have a call stack for the crash? Valgrind is pointing out coding errors in the WSL D3D code, which we can't do anything about.

[thomas-touhey]

What can I do to obtain that? :)

[slouken]

Run your program under gdb, and type bt when it crashes?

[thomas-touhey]

Still trying to reproduce the issue on local setup, and got feedback on the behalf of my contributor today. They tested with valgrind again, I pointed out you suggested using gdb with bt and I did not get an answer for this specifically yet.

In the mean time, they managed to encounter other crashes in slightly different configurations:

After applying the wslg.conf fix in another WSL host (valgrind)

==412== Memcheck, a memory error detector
==412== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
==412== Using Valgrind-3.23.0 and LibVEX; rerun with -h for copyright info
==412== Command: ./a.out
==412==
==412== Jump to the invalid address stated on the next line
==412==    at 0x0: ???
==412==    by 0x492D2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==412==    by 0x487DC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==412==    by 0x10926F: main (sdl2_crash.c:16)
==412==  Address 0x0 is not stack'd, malloc'd or (recently) free'd
==412==
==412==
==412== Process terminating with default action of signal 11 (SIGSEGV)
==412==  Bad permissions for mapped region at address 0x0
==412==    at 0x0: ???
==412==    by 0x492D2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==412==    by 0x487DC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==412==    by 0x10926F: main (sdl2_crash.c:16)
==412==
==412== HEAP SUMMARY:
==412==     in use at exit: 49,531 bytes in 149 blocks
==412==   total heap usage: 1,739 allocs, 1,590 frees, 326,005 bytes allocated
==412==
==412== 26 bytes in 1 blocks are definitely lost in loss record 29 of 102
==412==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==412==    by 0x514A954: ???
==412==    by 0x5130BB8: ??? (in /usr/lib/libffi.so.8.1.4)
==412==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==412==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==412==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==412==    by 0x10926F: main (sdl2_crash.c:16)
==412==
==412== 26 bytes in 1 blocks are definitely lost in loss record 30 of 102
==412==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==412==    by 0x514A954: ???
==412==    by 0x5130B6B: ??? (in /usr/lib/libffi.so.8.1.4)
==412==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==412==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==412==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==412==    by 0x10926F: main (sdl2_crash.c:16)
==412==
==412== 38 bytes in 1 blocks are definitely lost in loss record 42 of 102
==412==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==412==    by 0x514A954: ???
==412==    by 0x513099A: ??? (in /usr/lib/libffi.so.8.1.4)
==412==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==412==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==412==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==412==    by 0x10926F: main (sdl2_crash.c:16)
==412==
==412== 48 (24 direct, 24 indirect) bytes in 1 blocks are definitely lost in loss record 63 of 102
==412==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==412==    by 0x515235F: ???
==412==    by 0x5130766: ??? (in /usr/lib/libffi.so.8.1.4)
==412==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==412==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==412==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==412==    by 0x10926F: main (sdl2_crash.c:16)
==412==
==412== 520 bytes in 13 blocks are definitely lost in loss record 85 of 102
==412==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==412==    by 0x514E248: ???
==412==    by 0x514284C: ???
==412==    by 0x49840D3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:145)
==412==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==412==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==412==    by 0x10926F: main (sdl2_crash.c:16)
==412==
==412== 2,304 bytes in 1 blocks are possibly lost in loss record 92 of 102
==412==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==412==    by 0x40237E5: malloc (rtld-malloc.h:56)
==412==    by 0x40237E5: _dlfo_mappings_segment_allocate (dl-find_object.c:217)
==412==    by 0x40237E5: _dl_find_object_update_1 (dl-find_object.c:672)
==412==    by 0x40237E5: _dl_find_object_update (dl-find_object.c:806)
==412==    by 0x400C15F: dl_open_worker_begin (dl-open.c:756)
==412==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==412==    by 0x400B49F: dl_open_worker (dl-open.c:803)
==412==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==412==    by 0x400B903: _dl_open (dl-open.c:905)
==412==    by 0x4AC6F13: dlopen_doit (dlopen.c:56)
==412==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==412==    by 0x4001678: _dl_catch_error (dl-catch.c:260)
==412==    by 0x4AC69F2: _dlerror_run (dlerror.c:138)
==412==    by 0x4AC6FCE: dlopen_implementation (dlopen.c:71)
==412==    by 0x4AC6FCE: dlopen@@GLIBC_2.34 (dlopen.c:81)
==412==    by 0x4984194: UnknownInlinedFun (SDL_sysloadso.c:49)
==412==    by 0x4984194: UnknownInlinedFun (SDL_dbus.c:112)
==412==    by 0x4984194: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:140)
==412==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==412==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==412==    by 0x10926F: main (sdl2_crash.c:16)
==412==
==412== 2,304 bytes in 1 blocks are possibly lost in loss record 93 of 102
==412==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==412==    by 0x40237E5: malloc (rtld-malloc.h:56)
==412==    by 0x40237E5: _dlfo_mappings_segment_allocate (dl-find_object.c:217)
==412==    by 0x40237E5: _dl_find_object_update_1 (dl-find_object.c:672)
==412==    by 0x40237E5: _dl_find_object_update (dl-find_object.c:806)
==412==    by 0x400C15F: dl_open_worker_begin (dl-open.c:756)
==412==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==412==    by 0x400B49F: dl_open_worker (dl-open.c:803)
==412==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==412==    by 0x400B903: _dl_open (dl-open.c:905)
==412==    by 0x4AC6F13: dlopen_doit (dlopen.c:56)
==412==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==412==    by 0x4001678: _dl_catch_error (dl-catch.c:260)
==412==    by 0x4AC69F2: _dlerror_run (dlerror.c:138)
==412==    by 0x4AC6FCE: dlopen_implementation (dlopen.c:71)
==412==    by 0x4AC6FCE: dlopen@@GLIBC_2.34 (dlopen.c:81)
==412==    by 0x4955D27: UnknownInlinedFun (SDL_sysloadso.c:49)
==412==    by 0x4955D27: SDL_X11_LoadSymbols (SDL_x11dyn.c:161)
==412==    by 0x495DAC4: X11_CreateDevice.lto_priv.0 (SDL_x11video.c:161)
==412==    by 0x492D23E: SDL_VideoInit_REAL (SDL_video.c:524)
==412==    by 0x487DC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==412==    by 0x10926F: main (sdl2_crash.c:16)
==412==
==412== LEAK SUMMARY:
==412==    definitely lost: 634 bytes in 17 blocks
==412==    indirectly lost: 24 bytes in 1 blocks
==412==      possibly lost: 4,608 bytes in 2 blocks
==412==    still reachable: 44,265 bytes in 129 blocks
==412==         suppressed: 0 bytes in 0 blocks
==412== Reachable blocks (those to which a pointer was found) are not shown.
==412== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==412==
==412== For lists of detected and suppressed errors, rerun with: -s
==412== ERROR SUMMARY: 8 errors from 8 contexts (suppressed: 0 from 0)
Segmentation fault (core dumped)
[root@0v0katai-laptop ~]# valgrind --leak-check=full --num-callers=500 ./a.out
==423== Memcheck, a memory error detector
==423== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
==423== Using Valgrind-3.23.0 and LibVEX; rerun with -h for copyright info
==423== Command: ./a.out
==423==
==423== Jump to the invalid address stated on the next line
==423==    at 0x0: ???
==423==    by 0x492D2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==423==    by 0x487DC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==423==    by 0x10926F: main (sdl2_crash.c:16)
==423==  Address 0x0 is not stack'd, malloc'd or (recently) free'd
==423==
==423==
==423== Process terminating with default action of signal 11 (SIGSEGV)
==423==  Bad permissions for mapped region at address 0x0
==423==    at 0x0: ???
==423==    by 0x492D2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==423==    by 0x487DC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==423==    by 0x10926F: main (sdl2_crash.c:16)
==423==
==423== HEAP SUMMARY:
==423==     in use at exit: 49,531 bytes in 149 blocks
==423==   total heap usage: 1,739 allocs, 1,590 frees, 326,005 bytes allocated
==423==
==423== 26 bytes in 1 blocks are definitely lost in loss record 29 of 102
==423==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==423==    by 0x514A954: ???
==423==    by 0x5130BB8: ??? (in /usr/lib/libffi.so.8.1.4)
==423==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==423==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==423==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==423==    by 0x10926F: main (sdl2_crash.c:16)
==423==
==423== 26 bytes in 1 blocks are definitely lost in loss record 30 of 102
==423==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==423==    by 0x514A954: ???
==423==    by 0x5130B6B: ??? (in /usr/lib/libffi.so.8.1.4)
==423==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==423==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==423==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==423==    by 0x10926F: main (sdl2_crash.c:16)
==423==
==423== 38 bytes in 1 blocks are definitely lost in loss record 42 of 102
==423==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==423==    by 0x514A954: ???
==423==    by 0x513099A: ??? (in /usr/lib/libffi.so.8.1.4)
==423==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==423==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==423==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==423==    by 0x10926F: main (sdl2_crash.c:16)
==423==
==423== 48 (24 direct, 24 indirect) bytes in 1 blocks are definitely lost in loss record 63 of 102
==423==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==423==    by 0x515235F: ???
==423==    by 0x5130766: ??? (in /usr/lib/libffi.so.8.1.4)
==423==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==423==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==423==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==423==    by 0x10926F: main (sdl2_crash.c:16)
==423==
==423== 520 bytes in 13 blocks are definitely lost in loss record 85 of 102
==423==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==423==    by 0x514E248: ???
==423==    by 0x514284C: ???
==423==    by 0x49840D3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:145)
==423==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==423==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==423==    by 0x10926F: main (sdl2_crash.c:16)
==423==
==423== 2,304 bytes in 1 blocks are possibly lost in loss record 92 of 102
==423==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==423==    by 0x40237E5: malloc (rtld-malloc.h:56)
==423==    by 0x40237E5: _dlfo_mappings_segment_allocate (dl-find_object.c:217)
==423==    by 0x40237E5: _dl_find_object_update_1 (dl-find_object.c:672)
==423==    by 0x40237E5: _dl_find_object_update (dl-find_object.c:806)
==423==    by 0x400C15F: dl_open_worker_begin (dl-open.c:756)
==423==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==423==    by 0x400B49F: dl_open_worker (dl-open.c:803)
==423==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==423==    by 0x400B903: _dl_open (dl-open.c:905)
==423==    by 0x4AC6F13: dlopen_doit (dlopen.c:56)
==423==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==423==    by 0x4001678: _dl_catch_error (dl-catch.c:260)
==423==    by 0x4AC69F2: _dlerror_run (dlerror.c:138)
==423==    by 0x4AC6FCE: dlopen_implementation (dlopen.c:71)
==423==    by 0x4AC6FCE: dlopen@@GLIBC_2.34 (dlopen.c:81)
==423==    by 0x4984194: UnknownInlinedFun (SDL_sysloadso.c:49)
==423==    by 0x4984194: UnknownInlinedFun (SDL_dbus.c:112)
==423==    by 0x4984194: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:140)
==423==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==423==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==423==    by 0x10926F: main (sdl2_crash.c:16)
==423==
==423== 2,304 bytes in 1 blocks are possibly lost in loss record 93 of 102
==423==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==423==    by 0x40237E5: malloc (rtld-malloc.h:56)
==423==    by 0x40237E5: _dlfo_mappings_segment_allocate (dl-find_object.c:217)
==423==    by 0x40237E5: _dl_find_object_update_1 (dl-find_object.c:672)
==423==    by 0x40237E5: _dl_find_object_update (dl-find_object.c:806)
==423==    by 0x400C15F: dl_open_worker_begin (dl-open.c:756)
==423==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==423==    by 0x400B49F: dl_open_worker (dl-open.c:803)
==423==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==423==    by 0x400B903: _dl_open (dl-open.c:905)
==423==    by 0x4AC6F13: dlopen_doit (dlopen.c:56)
==423==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==423==    by 0x4001678: _dl_catch_error (dl-catch.c:260)
==423==    by 0x4AC69F2: _dlerror_run (dlerror.c:138)
==423==    by 0x4AC6FCE: dlopen_implementation (dlopen.c:71)
==423==    by 0x4AC6FCE: dlopen@@GLIBC_2.34 (dlopen.c:81)
==423==    by 0x4955D27: UnknownInlinedFun (SDL_sysloadso.c:49)
==423==    by 0x4955D27: SDL_X11_LoadSymbols (SDL_x11dyn.c:161)
==423==    by 0x495DAC4: X11_CreateDevice.lto_priv.0 (SDL_x11video.c:161)
==423==    by 0x492D23E: SDL_VideoInit_REAL (SDL_video.c:524)
==423==    by 0x487DC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==423==    by 0x10926F: main (sdl2_crash.c:16)
==423==
==423== LEAK SUMMARY:
==423==    definitely lost: 634 bytes in 17 blocks
==423==    indirectly lost: 24 bytes in 1 blocks
==423==      possibly lost: 4,608 bytes in 2 blocks
==423==    still reachable: 44,265 bytes in 129 blocks
==423==         suppressed: 0 bytes in 0 blocks
==423== Reachable blocks (those to which a pointer was found) are not shown.
==423== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==423==
==423== For lists of detected and suppressed errors, rerun with: -s
==423== ERROR SUMMARY: 8 errors from 8 contexts (suppressed: 0 from 0)
Segmentation fault (core dumped)
[root@0v0katai-laptop ~]# valgrind --leak-check=full --num-callers=500 ./a.out
==437== Memcheck, a memory error detector
==437== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
==437== Using Valgrind-3.23.0 and LibVEX; rerun with -h for copyright info
==437== Command: ./a.out
==437==
==437== Jump to the invalid address stated on the next line
==437==    at 0x0: ???
==437==    by 0x492D2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==437==    by 0x487DC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==437==    by 0x10926F: main (sdl2_crash.c:16)
==437==  Address 0x0 is not stack'd, malloc'd or (recently) free'd
==437==
==437==
==437== Process terminating with default action of signal 11 (SIGSEGV)
==437==  Bad permissions for mapped region at address 0x0
==437==    at 0x0: ???
==437==    by 0x492D2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==437==    by 0x487DC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==437==    by 0x10926F: main (sdl2_crash.c:16)
==437==
==437== HEAP SUMMARY:
==437==     in use at exit: 49,531 bytes in 149 blocks
==437==   total heap usage: 1,739 allocs, 1,590 frees, 326,005 bytes allocated
==437==
==437== 26 bytes in 1 blocks are definitely lost in loss record 29 of 102
==437==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==437==    by 0x514A954: ???
==437==    by 0x5130BB8: ??? (in /usr/lib/libffi.so.8.1.4)
==437==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==437==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==437==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==437==    by 0x10926F: main (sdl2_crash.c:16)
==437==
==437== 26 bytes in 1 blocks are definitely lost in loss record 30 of 102
==437==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==437==    by 0x514A954: ???
==437==    by 0x5130B6B: ??? (in /usr/lib/libffi.so.8.1.4)
==437==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==437==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==437==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==437==    by 0x10926F: main (sdl2_crash.c:16)
==437==
==437== 38 bytes in 1 blocks are definitely lost in loss record 42 of 102
==437==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==437==    by 0x514A954: ???
==437==    by 0x513099A: ??? (in /usr/lib/libffi.so.8.1.4)
==437==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==437==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==437==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==437==    by 0x10926F: main (sdl2_crash.c:16)
==437==
==437== 48 (24 direct, 24 indirect) bytes in 1 blocks are definitely lost in loss record 63 of 102
==437==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==437==    by 0x515235F: ???
==437==    by 0x5130766: ??? (in /usr/lib/libffi.so.8.1.4)
==437==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==437==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==437==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==437==    by 0x10926F: main (sdl2_crash.c:16)
==437==
==437== 520 bytes in 13 blocks are definitely lost in loss record 85 of 102
==437==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==437==    by 0x514E248: ???
==437==    by 0x514284C: ???
==437==    by 0x49840D3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:145)
==437==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==437==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==437==    by 0x10926F: main (sdl2_crash.c:16)
==437==
==437== 2,304 bytes in 1 blocks are possibly lost in loss record 92 of 102
==437==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==437==    by 0x40237E5: malloc (rtld-malloc.h:56)
==437==    by 0x40237E5: _dlfo_mappings_segment_allocate (dl-find_object.c:217)
==437==    by 0x40237E5: _dl_find_object_update_1 (dl-find_object.c:672)
==437==    by 0x40237E5: _dl_find_object_update (dl-find_object.c:806)
==437==    by 0x400C15F: dl_open_worker_begin (dl-open.c:756)
==437==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==437==    by 0x400B49F: dl_open_worker (dl-open.c:803)
==437==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==437==    by 0x400B903: _dl_open (dl-open.c:905)
==437==    by 0x4AC6F13: dlopen_doit (dlopen.c:56)
==437==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==437==    by 0x4001678: _dl_catch_error (dl-catch.c:260)
==437==    by 0x4AC69F2: _dlerror_run (dlerror.c:138)
==437==    by 0x4AC6FCE: dlopen_implementation (dlopen.c:71)
==437==    by 0x4AC6FCE: dlopen@@GLIBC_2.34 (dlopen.c:81)
==437==    by 0x4984194: UnknownInlinedFun (SDL_sysloadso.c:49)
==437==    by 0x4984194: UnknownInlinedFun (SDL_dbus.c:112)
==437==    by 0x4984194: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:140)
==437==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==437==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==437==    by 0x10926F: main (sdl2_crash.c:16)
==437==
==437== 2,304 bytes in 1 blocks are possibly lost in loss record 93 of 102
==437==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==437==    by 0x40237E5: malloc (rtld-malloc.h:56)
==437==    by 0x40237E5: _dlfo_mappings_segment_allocate (dl-find_object.c:217)
==437==    by 0x40237E5: _dl_find_object_update_1 (dl-find_object.c:672)
==437==    by 0x40237E5: _dl_find_object_update (dl-find_object.c:806)
==437==    by 0x400C15F: dl_open_worker_begin (dl-open.c:756)
==437==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==437==    by 0x400B49F: dl_open_worker (dl-open.c:803)
==437==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==437==    by 0x400B903: _dl_open (dl-open.c:905)
==437==    by 0x4AC6F13: dlopen_doit (dlopen.c:56)
==437==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==437==    by 0x4001678: _dl_catch_error (dl-catch.c:260)
==437==    by 0x4AC69F2: _dlerror_run (dlerror.c:138)
==437==    by 0x4AC6FCE: dlopen_implementation (dlopen.c:71)
==437==    by 0x4AC6FCE: dlopen@@GLIBC_2.34 (dlopen.c:81)
==437==    by 0x4955D27: UnknownInlinedFun (SDL_sysloadso.c:49)
==437==    by 0x4955D27: SDL_X11_LoadSymbols (SDL_x11dyn.c:161)
==437==    by 0x495DAC4: X11_CreateDevice.lto_priv.0 (SDL_x11video.c:161)
==437==    by 0x492D23E: SDL_VideoInit_REAL (SDL_video.c:524)
==437==    by 0x487DC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==437==    by 0x10926F: main (sdl2_crash.c:16)
==437==
==437== LEAK SUMMARY:
==437==    definitely lost: 634 bytes in 17 blocks
==437==    indirectly lost: 24 bytes in 1 blocks
==437==      possibly lost: 4,608 bytes in 2 blocks
==437==    still reachable: 44,265 bytes in 129 blocks
==437==         suppressed: 0 bytes in 0 blocks
==437== Reachable blocks (those to which a pointer was found) are not shown.
==437== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==437==
==437== For lists of detected and suppressed errors, rerun with: -s
==437== ERROR SUMMARY: 8 errors from 8 contexts (suppressed: 0 from 0)
Segmentation fault (core dumped)

After installing the wslg.conf fix, with success but still some memory leaks (valgrind)

==487== Memcheck, a memory error detector
==487== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
==487== Using Valgrind-3.23.0 and LibVEX; rerun with -h for copyright info
==487== Command: ./a.out
==487==
==487==
==487== HEAP SUMMARY:
==487==     in use at exit: 58,422 bytes in 981 blocks
==487==   total heap usage: 13,336 allocs, 12,355 frees, 2,315,400 bytes allocated
==487==
==487== 8 bytes in 1 blocks are definitely lost in loss record 7 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x530008A: ???
==487==    by 0x495D78D: X11_InitKeyboard (SDL_x11keyboard.c:208)
==487==    by 0x49633E1: X11_VideoInit.lto_priv.0 (SDL_x11video.c:480)
==487==    by 0x492C2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==487==    by 0x487CC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 12 bytes in 1 blocks are definitely lost in loss record 9 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x5149954: ???
==487==    by 0x512FACD: ???
==487==    by 0x49830F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==487==    by 0x487CA9E: UnknownInlinedFun (SDL_dbus.c:175)
==487==    by 0x487CA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 12 bytes in 1 blocks are definitely lost in loss record 10 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x5149954: ???
==487==    by 0x512FB6B: ???
==487==    by 0x49830F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==487==    by 0x487CA9E: UnknownInlinedFun (SDL_dbus.c:175)
==487==    by 0x487CA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 32 (16 direct, 16 indirect) bytes in 1 blocks are definitely lost in loss record 35 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x52F2A6B: ???
==487==    by 0x52F3143: ???
==487==    by 0x495D77B: X11_InitKeyboard (SDL_x11keyboard.c:206)
==487==    by 0x49633E1: X11_VideoInit.lto_priv.0 (SDL_x11video.c:480)
==487==    by 0x492C2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==487==    by 0x487CC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 38 bytes in 1 blocks are definitely lost in loss record 37 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x5149954: ???
==487==    by 0x512F99A: ???
==487==    by 0x49830F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==487==    by 0x487CA9E: UnknownInlinedFun (SDL_dbus.c:175)
==487==    by 0x487CA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 48 (24 direct, 24 indirect) bytes in 1 blocks are definitely lost in loss record 58 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x515135F: ???
==487==    by 0x512F766: ???
==487==    by 0x49830F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==487==    by 0x487CA9E: UnknownInlinedFun (SDL_dbus.c:175)
==487==    by 0x487CA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 48 (16 direct, 32 indirect) bytes in 1 blocks are definitely lost in loss record 59 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x52EE7D1: ???
==487==    by 0x52F2A31: ???
==487==    by 0x52F3143: ???
==487==    by 0x495D6DF: X11_InitKeyboard (SDL_x11keyboard.c:178)
==487==    by 0x49633E1: X11_VideoInit.lto_priv.0 (SDL_x11video.c:480)
==487==    by 0x492C2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==487==    by 0x487CC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 80 (40 direct, 40 indirect) bytes in 1 blocks are definitely lost in loss record 110 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x52EEC27: ???
==487==    by 0x52F3673: ???
==487==    by 0x52F184E: ???
==487==    by 0x52EE30D: ???
==487==    by 0x53114BA: ???
==487==    by 0x52F2A58: ???
==487==    by 0x52F3143: ???
==487==    by 0x495D77B: X11_InitKeyboard (SDL_x11keyboard.c:206)
==487==    by 0x49633E1: X11_VideoInit.lto_priv.0 (SDL_x11video.c:480)
==487==    by 0x492C2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==487==    by 0x487CC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 520 bytes in 13 blocks are definitely lost in loss record 129 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x514D248: ???
==487==    by 0x514184C: ???
==487==    by 0x49830D3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:145)
==487==    by 0x487CA9E: UnknownInlinedFun (SDL_dbus.c:175)
==487==    by 0x487CA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 1,187 (16 direct, 1,171 indirect) bytes in 1 blocks are definitely lost in loss record 136 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x52E6DAA: ???
==487==    by 0x52F02F0: ???
==487==    by 0x52EE30D: ???
==487==    by 0x53114BA: ???
==487==    by 0x52F2A58: ???
==487==    by 0x52F3143: ???
==487==    by 0x495D77B: X11_InitKeyboard (SDL_x11keyboard.c:206)
==487==    by 0x49633E1: X11_VideoInit.lto_priv.0 (SDL_x11video.c:480)
==487==    by 0x492C2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==487==    by 0x487CC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 2,048 bytes in 1 blocks are definitely lost in loss record 140 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x52EED3D: ???
==487==    by 0x52F3673: ???
==487==    by 0x52F184E: ???
==487==    by 0x52EE30D: ???
==487==    by 0x53114BA: ???
==487==    by 0x52F2A58: ???
==487==    by 0x52F3143: ???
==487==    by 0x495D6DF: X11_InitKeyboard (SDL_x11keyboard.c:178)
==487==    by 0x49633E1: X11_VideoInit.lto_priv.0 (SDL_x11video.c:480)
==487==    by 0x492C2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==487==    by 0x487CC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 4,096 bytes in 1 blocks are definitely lost in loss record 147 of 152
==487==    at 0x484BC13: calloc (vg_replace_malloc.c:1675)
==487==    by 0x52C802B: ???
==487==    by 0x52DC1C4: ???
==487==    by 0x52B8E7A: ???
==487==    by 0x52B9095: ???
==487==    by 0x4962C3C: UnknownInlinedFun (SDL_x11modes.c:526)
==487==    by 0x4962C3C: UnknownInlinedFun (SDL_x11modes.c:602)
==487==    by 0x4962C3C: UnknownInlinedFun (SDL_x11modes.c:654)
==487==    by 0x4962C3C: X11_VideoInit.lto_priv.0 (SDL_x11video.c:466)
==487==    by 0x492C2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==487==    by 0x487CC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 7,616 (52 direct, 7,564 indirect) bytes in 1 blocks are definitely lost in loss record 148 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x52E7054: ???
==487==    by 0x52E74D0: ???
==487==    by 0x52F3534: ???
==487==    by 0x52F184E: ???
==487==    by 0x52EE30D: ???
==487==    by 0x53114BA: ???
==487==    by 0x52F2A58: ???
==487==    by 0x52F3143: ???
==487==    by 0x495D6DF: X11_InitKeyboard (SDL_x11keyboard.c:178)
==487==    by 0x49633E1: X11_VideoInit.lto_priv.0 (SDL_x11video.c:480)
==487==    by 0x492C2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==487==    by 0x487CC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 16,416 (64 direct, 16,352 indirect) bytes in 1 blocks are definitely lost in loss record 151 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x52C81AF: ???
==487==    by 0x52DC1C4: ???
==487==    by 0x52B8E7A: ???
==487==    by 0x52B9095: ???
==487==    by 0x4962C3C: UnknownInlinedFun (SDL_x11modes.c:526)
==487==    by 0x4962C3C: UnknownInlinedFun (SDL_x11modes.c:602)
==487==    by 0x4962C3C: UnknownInlinedFun (SDL_x11modes.c:654)
==487==    by 0x4962C3C: X11_VideoInit.lto_priv.0 (SDL_x11video.c:466)
==487==    by 0x492C2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==487==    by 0x487CC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== 18,489 (64 direct, 18,425 indirect) bytes in 1 blocks are definitely lost in loss record 152 of 152
==487==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==487==    by 0x52E73FE: ???
==487==    by 0x52F469C: ???
==487==    by 0x530F50A: ???
==487==    by 0x52F2A58: ???
==487==    by 0x52F3143: ???
==487==    by 0x495D6DF: X11_InitKeyboard (SDL_x11keyboard.c:178)
==487==    by 0x49633E1: X11_VideoInit.lto_priv.0 (SDL_x11video.c:480)
==487==    by 0x492C2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==487==    by 0x487CC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==487==    by 0x10926F: main (sdl2_crash.c:16)
==487==
==487== LEAK SUMMARY:
==487==    definitely lost: 7,026 bytes in 27 blocks
==487==    indirectly lost: 43,624 bytes in 903 blocks
==487==      possibly lost: 0 bytes in 0 blocks
==487==    still reachable: 7,772 bytes in 51 blocks
==487==         suppressed: 0 bytes in 0 blocks
==487== Reachable blocks (those to which a pointer was found) are not shown.
==487== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==487==
==487== For lists of detected and suppressed errors, rerun with: -s
==487== ERROR SUMMARY: 15 errors from 15 contexts (suppressed: 0 from 0)

After fresh install, initial crash again (valgrind)

==2993== Memcheck, a memory error detector
==2993== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
==2993== Using Valgrind-3.23.0 and LibVEX; rerun with -h for copyright info
==2993== Command: ./a.out
==2993==
^C^C^C^C^C
^C^C^C^C^C
==2993== Conditional jump or move depends on uninitialised value(s)
==2993==    at 0x125DF9DC: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x125E0713: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x125A290F: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x125A78B5: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x125A3AD0: DXCoreCreateAdapterFactory (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x62C999B: get_dxcore_factory (d3d12_dxcore_screen.cpp:53)
==2993==    by 0x62C999B: d3d12_init_dxcore_screen(d3d12_screen*) (d3d12_dxcore_screen.cpp:184)
==2993==    by 0x62C9F14: d3d12_create_dxcore_screen (d3d12_dxcore_screen.cpp:243)
==2993==    by 0x56A3EEE: sw_screen_create_named (sw_helper.h:66)
==2993==    by 0x56A3EEE: sw_screen_create_vk (sw_helper.h:90)
==2993==    by 0x5DF06CC: pipe_loader_sw_create_screen (pipe_loader_sw.c:427)
==2993==    by 0x5DF05FF: pipe_loader_create_screen_vk (pipe_loader.c:181)
==2993==    by 0x56CB26E: drisw_init_screen (drisw.c:603)
==2993==    by 0x56D50BF: driCreateNewScreen3 (dri_util.c:140)
==2993==    by 0x563BFAD: dri2_create_screen (egl_dri2.c:927)
==2993==    by 0x563DB5B: dri2_initialize_device (platform_device.c:365)
==2993==    by 0x563C9E8: dri2_initialize (egl_dri2.c:1058)
==2993==    by 0x562A94B: eglInitialize (eglapi.c:699)
==2993==    by 0x4949868: UnknownInlinedFun (SDL_egl.c:623)
==2993==    by 0x4949868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2993==    by 0x4949868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2993==    by 0x4931F52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2993==    by 0x4930BF1: SDL_RecreateWindow (SDL_video.c:1990)
==2993==    by 0x48BEAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2993==    by 0x48B40BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2993==    by 0x492DC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2711)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2772)
==2993==    by 0x493236F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2993==    by 0x48DEBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2993==    by 0x48B44AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2993==    by 0x10931B: main (sdl2_crash.c:40)
==2993==
==2993== Conditional jump or move depends on uninitialised value(s)
==2993==    at 0x125E0272: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x125E0713: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x125A290F: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x125A78B5: ??? (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x125A3AD0: DXCoreCreateAdapterFactory (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x62C999B: get_dxcore_factory (d3d12_dxcore_screen.cpp:53)
==2993==    by 0x62C999B: d3d12_init_dxcore_screen(d3d12_screen*) (d3d12_dxcore_screen.cpp:184)
==2993==    by 0x62C9F14: d3d12_create_dxcore_screen (d3d12_dxcore_screen.cpp:243)
==2993==    by 0x56A3EEE: sw_screen_create_named (sw_helper.h:66)
==2993==    by 0x56A3EEE: sw_screen_create_vk (sw_helper.h:90)
==2993==    by 0x5DF06CC: pipe_loader_sw_create_screen (pipe_loader_sw.c:427)
==2993==    by 0x5DF05FF: pipe_loader_create_screen_vk (pipe_loader.c:181)
==2993==    by 0x56CB26E: drisw_init_screen (drisw.c:603)
==2993==    by 0x56D50BF: driCreateNewScreen3 (dri_util.c:140)
==2993==    by 0x563BFAD: dri2_create_screen (egl_dri2.c:927)
==2993==    by 0x563DB5B: dri2_initialize_device (platform_device.c:365)
==2993==    by 0x563C9E8: dri2_initialize (egl_dri2.c:1058)
==2993==    by 0x562A94B: eglInitialize (eglapi.c:699)
==2993==    by 0x4949868: UnknownInlinedFun (SDL_egl.c:623)
==2993==    by 0x4949868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2993==    by 0x4949868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2993==    by 0x4931F52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2993==    by 0x4930BF1: SDL_RecreateWindow (SDL_video.c:1990)
==2993==    by 0x48BEAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2993==    by 0x48B40BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2993==    by 0x492DC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2711)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2772)
==2993==    by 0x493236F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2993==    by 0x48DEBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2993==    by 0x48B44AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2993==    by 0x10931B: main (sdl2_crash.c:40)
==2993==
==2993== Syscall param ioctl(generic) points to uninitialised byte(s)
==2993==    at 0x4B4BCED: ioctl (ioctl.c:36)
==2993==    by 0x12618712: D3DKMTQueryAdapterInfo (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x12A563FA: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x12E01452: ??? (in /usr/lib/wsl/drivers/iigd_dch.inf_amd64_9741ef1f4093481f/libigd12umd64.so)
==2993==    by 0x12E010D0: OpenAdapter12 (in /usr/lib/wsl/drivers/iigd_dch.inf_amd64_9741ef1f4093481f/libigd12umd64.so)
==2993==    by 0x12A69780: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x12A556A7: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x12984B2B: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x1298487F: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x12985488: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x12986E3F: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x1293F962: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x62CB849: create_device (d3d12_screen.cpp:1020)
==2993==    by 0x62CB849: d3d12_init_screen(d3d12_screen*, IUnknown*) (d3d12_screen.cpp:1557)
==2993==    by 0x62C9CCA: d3d12_init_dxcore_screen(d3d12_screen*) (d3d12_dxcore_screen.cpp:220)
==2993==    by 0x62C9F14: d3d12_create_dxcore_screen (d3d12_dxcore_screen.cpp:243)
==2993==    by 0x56A3EEE: sw_screen_create_named (sw_helper.h:66)
==2993==    by 0x56A3EEE: sw_screen_create_vk (sw_helper.h:90)
==2993==    by 0x5DF06CC: pipe_loader_sw_create_screen (pipe_loader_sw.c:427)
==2993==    by 0x5DF05FF: pipe_loader_create_screen_vk (pipe_loader.c:181)
==2993==    by 0x56CB26E: drisw_init_screen (drisw.c:603)
==2993==    by 0x56D50BF: driCreateNewScreen3 (dri_util.c:140)
==2993==    by 0x563BFAD: dri2_create_screen (egl_dri2.c:927)
==2993==    by 0x563DB5B: dri2_initialize_device (platform_device.c:365)
==2993==    by 0x563C9E8: dri2_initialize (egl_dri2.c:1058)
==2993==    by 0x562A94B: eglInitialize (eglapi.c:699)
==2993==    by 0x4949868: UnknownInlinedFun (SDL_egl.c:623)
==2993==    by 0x4949868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2993==    by 0x4949868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2993==    by 0x4931F52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2993==    by 0x4930BF1: SDL_RecreateWindow (SDL_video.c:1990)
==2993==    by 0x48BEAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2993==    by 0x48B40BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2993==    by 0x492DC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2711)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2772)
==2993==    by 0x493236F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2993==    by 0x48DEBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2993==    by 0x48B44AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2993==    by 0x10931B: main (sdl2_crash.c:40)
==2993==  Address 0x1ffeff8b64 is on thread 1's stack
==2993==  in frame #1, created by D3DKMTQueryAdapterInfo (???:)
==2993==
==2993== Syscall param ioctl(generic) points to uninitialised byte(s)
==2993==    at 0x4B4BCED: ioctl (ioctl.c:36)
==2993==    by 0x12618712: D3DKMTQueryAdapterInfo (in /usr/lib/wsl/lib/libdxcore.so)
==2993==    by 0x12A563FA: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x12E0148B: ??? (in /usr/lib/wsl/drivers/iigd_dch.inf_amd64_9741ef1f4093481f/libigd12umd64.so)
==2993==    by 0x12E01107: OpenAdapter12 (in /usr/lib/wsl/drivers/iigd_dch.inf_amd64_9741ef1f4093481f/libigd12umd64.so)
==2993==    by 0x12A69780: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x12A556A7: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x12984B2B: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x1298487F: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x12985488: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x12986E3F: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x1293F962: ??? (in /usr/lib/wsl/lib/libd3d12core.so)
==2993==    by 0x62CB849: create_device (d3d12_screen.cpp:1020)
==2993==    by 0x62CB849: d3d12_init_screen(d3d12_screen*, IUnknown*) (d3d12_screen.cpp:1557)
==2993==    by 0x62C9CCA: d3d12_init_dxcore_screen(d3d12_screen*) (d3d12_dxcore_screen.cpp:220)
==2993==    by 0x62C9F14: d3d12_create_dxcore_screen (d3d12_dxcore_screen.cpp:243)
==2993==    by 0x56A3EEE: sw_screen_create_named (sw_helper.h:66)
==2993==    by 0x56A3EEE: sw_screen_create_vk (sw_helper.h:90)
==2993==    by 0x5DF06CC: pipe_loader_sw_create_screen (pipe_loader_sw.c:427)
==2993==    by 0x5DF05FF: pipe_loader_create_screen_vk (pipe_loader.c:181)
==2993==    by 0x56CB26E: drisw_init_screen (drisw.c:603)
==2993==    by 0x56D50BF: driCreateNewScreen3 (dri_util.c:140)
==2993==    by 0x563BFAD: dri2_create_screen (egl_dri2.c:927)
==2993==    by 0x563DB5B: dri2_initialize_device (platform_device.c:365)
==2993==    by 0x563C9E8: dri2_initialize (egl_dri2.c:1058)
==2993==    by 0x562A94B: eglInitialize (eglapi.c:699)
==2993==    by 0x4949868: UnknownInlinedFun (SDL_egl.c:623)
==2993==    by 0x4949868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2993==    by 0x4949868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2993==    by 0x4931F52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2993==    by 0x4930BF1: SDL_RecreateWindow (SDL_video.c:1990)
==2993==    by 0x48BEAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2993==    by 0x48B40BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2993==    by 0x492DC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2711)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2772)
==2993==    by 0x493236F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2993==    by 0x48DEBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2993==    by 0x48B44AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2993==    by 0x10931B: main (sdl2_crash.c:40)
==2993==  Address 0x1ffeff8b64 is on thread 1's stack
==2993==  in frame #1, created by D3DKMTQueryAdapterInfo (???:)
==2993==
==2993== Warning: invalid file descriptor -1 in syscall close()
==2993==
==2993== HEAP SUMMARY:
==2993==     in use at exit: 354,590 bytes in 2,471 blocks
==2993==   total heap usage: 204,286 allocs, 201,815 frees, 112,760,169 bytes allocated
==2993==
==2993== 112 (56 direct, 56 indirect) bytes in 1 blocks are definitely lost in loss record 2,311 of 2,371
==2993==    at 0x484BC13: calloc (vg_replace_malloc.c:1675)
==2993==    by 0x637565E: ???
==2993==    by 0x5DF01F4: ???
==2993==    by 0x5DD8711: ???
==2993==    by 0x5DD88F7: ???
==2993==    by 0x5D83766: ???
==2993==    by 0x5D86621: ???
==2993==    by 0x5D80FF5: ???
==2993==    by 0x5D22500: ???
==2993==    by 0x5D69AB9: ???
==2993==    by 0x5D653A8: ???
==2993==    by 0x5CEFB02: ???
==2993==    by 0x5CE8529: ???
==2993==    by 0x5CE89A7: ???
==2993==    by 0x5CE8E6C: ???
==2993==    by 0x5E18497: ???
==2993==    by 0x5941306: ???
==2993==    by 0x48BD534: GL_RunCommandQueue (SDL_render_gl.c:1374)
==2993==    by 0x48B0B70: FlushRenderCommands.lto_priv.0 (SDL_render.c:249)
==2993==    by 0x48B77D7: UnknownInlinedFun (SDL_render.c:278)
==2993==    by 0x48B77D7: SDL_RenderCopyF_REAL (SDL_render.c:3509)
==2993==    by 0x492CFD4: UnknownInlinedFun (SDL_render.c:3404)
==2993==    by 0x492CFD4: SDL_UpdateWindowTexture.lto_priv.0 (SDL_video.c:374)
==2993==    by 0x4931D73: SDL_UpdateWindowSurface_REAL (SDL_video.c:2791)
==2993==    by 0x48B9B6D: UnknownInlinedFun (SDL_render.c:4269)
==2993==    by 0x48B9B6D: SDL_RenderPresent_REAL (SDL_render.c:4255)
==2993==    by 0x109422: main (sdl2_crash.c:78)
==2993==
==2993== 512 bytes in 1 blocks are possibly lost in loss record 2,347 of 2,371
==2993==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==2993==    by 0x40112F0: malloc (rtld-malloc.h:56)
==2993==    by 0x40112F0: _dl_resize_dtv (dl-tls.c:527)
==2993==    by 0x4011C71: _dl_update_slotinfo (dl-tls.c:849)
==2993==    by 0x4011DA3: update_get_addr (dl-tls.c:967)
==2993==    by 0x4014C9B: __tls_get_addr (tls_get_addr.S:55)
==2993==    by 0x10102F54: __cxa_get_globals (eh_globals.cc:62)
==2993==    by 0x101041C0: __cxa_throw (eh_throw.cc:83)
==2993==    by 0x1327A160: ???
==2993==    by 0x1327114B: ???
==2993==    by 0x1326F4CB: ???
==2993==    by 0x13241E2E: ???
==2993==    by 0x12E012C4: ???
==2993==    by 0x12E0115C: ???
==2993==    by 0x12A69780: ???
==2993==    by 0x12A556A7: ???
==2993==    by 0x12984B2B: ???
==2993==    by 0x1298487F: ???
==2993==    by 0x12985488: ???
==2993==    by 0x12986E3F: ???
==2993==    by 0x1293F962: ???
==2993==    by 0x62CB849: ???
==2993==    by 0x62C9CCA: ???
==2993==    by 0x62C9F14: ???
==2993==    by 0x56A3EEE: ???
==2993==    by 0x5DF06CC: ???
==2993==    by 0x5DF05FF: ???
==2993==    by 0x56CB26E: ???
==2993==    by 0x56D50BF: ???
==2993==    by 0x563BFAD: ???
==2993==    by 0x563DB5B: ???
==2993==    by 0x563C9E8: ???
==2993==    by 0x562A94B: ???
==2993==    by 0x4949868: UnknownInlinedFun (SDL_egl.c:623)
==2993==    by 0x4949868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2993==    by 0x4949868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2993==    by 0x4931F52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2993==    by 0x4930BF1: SDL_RecreateWindow (SDL_video.c:1990)
==2993==    by 0x48BEAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2993==    by 0x48B40BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2993==    by 0x492DC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2711)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2772)
==2993==    by 0x493236F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2993==    by 0x48DEBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2993==    by 0x48B44AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2993==    by 0x10931B: main (sdl2_crash.c:40)
==2993==
==2993== 2,688 bytes in 1 blocks are definitely lost in loss record 2,360 of 2,371
==2993==    at 0x484BC13: calloc (vg_replace_malloc.c:1675)
==2993==    by 0x5635D2F: ???
==2993==    by 0x56366BE: ???
==2993==    by 0x5615941: ???
==2993==    by 0x494984F: UnknownInlinedFun (SDL_egl.c:617)
==2993==    by 0x494984F: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2993==    by 0x494984F: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2993==    by 0x4931F52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2993==    by 0x4930BF1: SDL_RecreateWindow (SDL_video.c:1990)
==2993==    by 0x48BEAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2993==    by 0x48B40BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2993==    by 0x492DC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2711)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2772)
==2993==    by 0x493236F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2993==    by 0x48DEBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2993==    by 0x48B44AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2993==    by 0x10931B: main (sdl2_crash.c:40)
==2993==
==2993== 30,264 (24 direct, 30,240 indirect) bytes in 1 blocks are definitely lost in loss record 2,368 of 2,371
==2993==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==2993==    by 0x13241DD6: ???
==2993==    by 0x12E012C4: ???
==2993==    by 0x12E0115C: ???
==2993==    by 0x12A69780: ???
==2993==    by 0x12A556A7: ???
==2993==    by 0x12984B2B: ???
==2993==    by 0x1298487F: ???
==2993==    by 0x12985488: ???
==2993==    by 0x12986E3F: ???
==2993==    by 0x1293F962: ???
==2993==    by 0x62CB849: ???
==2993==    by 0x62C9CCA: ???
==2993==    by 0x62C9F14: ???
==2993==    by 0x56A3EEE: ???
==2993==    by 0x5DF06CC: ???
==2993==    by 0x5DF05FF: ???
==2993==    by 0x56CB26E: ???
==2993==    by 0x56D50BF: ???
==2993==    by 0x563BFAD: ???
==2993==    by 0x563DB5B: ???
==2993==    by 0x563C9E8: ???
==2993==    by 0x562A94B: ???
==2993==    by 0x4949868: UnknownInlinedFun (SDL_egl.c:623)
==2993==    by 0x4949868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2993==    by 0x4949868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2993==    by 0x4931F52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2993==    by 0x4930BF1: SDL_RecreateWindow (SDL_video.c:1990)
==2993==    by 0x48BEAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2993==    by 0x48B40BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2993==    by 0x492DC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2711)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2772)
==2993==    by 0x493236F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2993==    by 0x48DEBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2993==    by 0x48B44AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2993==    by 0x10931B: main (sdl2_crash.c:40)
==2993==
==2993== 30,264 (24 direct, 30,240 indirect) bytes in 1 blocks are definitely lost in loss record 2,369 of 2,371
==2993==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==2993==    by 0x13241DD6: ???
==2993==    by 0x12E012C4: ???
==2993==    by 0x12E0115C: ???
==2993==    by 0x12A69780: ???
==2993==    by 0x12A556A7: ???
==2993==    by 0x12984B2B: ???
==2993==    by 0x1298487F: ???
==2993==    by 0x12985488: ???
==2993==    by 0x12986E3F: ???
==2993==    by 0x1293F962: ???
==2993==    by 0x62CBA26: ???
==2993==    by 0x62C9CCA: ???
==2993==    by 0x62C9F14: ???
==2993==    by 0x56A3EEE: ???
==2993==    by 0x5DF06CC: ???
==2993==    by 0x5DF05FF: ???
==2993==    by 0x56CB26E: ???
==2993==    by 0x56D50BF: ???
==2993==    by 0x563BFAD: ???
==2993==    by 0x563DB5B: ???
==2993==    by 0x563C9E8: ???
==2993==    by 0x562A94B: ???
==2993==    by 0x4949868: UnknownInlinedFun (SDL_egl.c:623)
==2993==    by 0x4949868: UnknownInlinedFun (SDL_offscreenopengles.c:43)
==2993==    by 0x4949868: OFFSCREEN_GLES_LoadLibrary (SDL_offscreenopengles.c:31)
==2993==    by 0x4931F52: SDL_GL_LoadLibrary_REAL (SDL_video.c:3469)
==2993==    by 0x4930BF1: SDL_RecreateWindow (SDL_video.c:1990)
==2993==    by 0x48BEAA3: GL_CreateRenderer.lto_priv.0 (SDL_render_gl.c:1728)
==2993==    by 0x48B40BE: SDL_CreateRenderer_REAL (SDL_render.c:1028)
==2993==    by 0x492DC4D: SDL_CreateWindowTexture.lto_priv.0 (SDL_video.c:267)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2711)
==2993==    by 0x493236F: UnknownInlinedFun (SDL_video.c:2772)
==2993==    by 0x493236F: SDL_GetWindowSurface_REAL (SDL_video.c:2761)
==2993==    by 0x48DEBBA: SW_CreateRenderer.lto_priv.0 (SDL_render_sw.c:1063)
==2993==    by 0x48B44AF: SDL_CreateRenderer_REAL (SDL_render.c:1009)
==2993==    by 0x10931B: main (sdl2_crash.c:40)
==2993==
==2993== LEAK SUMMARY:
==2993==    definitely lost: 2,792 bytes in 4 blocks
==2993==    indirectly lost: 60,536 bytes in 3 blocks
==2993==      possibly lost: 512 bytes in 1 blocks
==2993==    still reachable: 290,670 bytes in 2,461 blocks
==2993==         suppressed: 80 bytes in 2 blocks
==2993== Reachable blocks (those to which a pointer was found) are not shown.
==2993== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==2993==
==2993== Use --track-origins=yes to see where uninitialised values come from
==2993== For lists of detected and suppressed errors, rerun with: -s
==2993== ERROR SUMMARY: 11 errors from 9 contexts (suppressed: 2 from 2)

[0v0katai]

Hi, I'm the original reporter of this issue. I apologize for not using gbd when @thomas-touhey commented because I got different valgrind results the next day and I had to set up another ArchWSL instance to reproduce the initial result. Right now this is what gdb gives me:

gdb log

Reading symbols from a.out...
(gdb) r
Starting program: /root/a.out

This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.archlinux.org>
Enable debuginfod for this session? (y or [n]) y
Debuginfod has been enabled.
To make this setting permanent, add 'set debuginfod enabled on' to .gdbinit.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffea5126c0 (LWP 4740)]
[New Thread 0x7fffe3fff6c0 (LWP 4741)]
[New Thread 0x7fffe9d116c0 (LWP 4742)]
[New Thread 0x7fffe95106c0 (LWP 4743)]
[New Thread 0x7fffe8d0f6c0 (LWP 4744)]
[New Thread 0x7fffe37fe6c0 (LWP 4745)]
[New Thread 0x7fffe2ffd6c0 (LWP 4746)]
[New Thread 0x7fffe27fc6c0 (LWP 4747)]
[New Thread 0x7fffe1ffb6c0 (LWP 4748)]
[New Thread 0x7fffe17fa6c0 (LWP 4749)]
[New Thread 0x7fffe0ff96c0 (LWP 4750)]
[New Thread 0x7fffb3fff6c0 (LWP 4751)]
[New Thread 0x7fffbbfff6c0 (LWP 4752)]
[New Thread 0x7fffbb7fe6c0 (LWP 4753)]
[New Thread 0x7fffbaffd6c0 (LWP 4754)]
[New Thread 0x7fffba7fc6c0 (LWP 4755)]
[New Thread 0x7fffb9ffb6c0 (LWP 4756)]
[New Thread 0x7fffb97fa6c0 (LWP 4757)]
[New Thread 0x7fffb8ff96c0 (LWP 4758)]
[New Thread 0x7fffb37fe6c0 (LWP 4759)]
[New Thread 0x7fffb2ffd6c0 (LWP 4760)]
[New Thread 0x7fffb27fc6c0 (LWP 4761)]
[New Thread 0x7fffb1ffb6c0 (LWP 4762)]
[New Thread 0x7fffb17fa6c0 (LWP 4763)]
[New Thread 0x7fffb0ff96c0 (LWP 4764)]
[New Thread 0x7fff7bfff6c0 (LWP 4765)]
[New Thread 0x7fff7b7fe6c0 (LWP 4766)]
[New Thread 0x7fff7affd6c0 (LWP 4767)]
[New Thread 0x7fff7a7fc6c0 (LWP 4768)]
[New Thread 0x7fff79ffb6c0 (LWP 4769)]
[New Thread 0x7fff797fa6c0 (LWP 4770)]
[New Thread 0x7fff78ff96c0 (LWP 4771)]
[New Thread 0x7fff5ffff6c0 (LWP 4772)]
[New Thread 0x7fff5f7fe6c0 (LWP 4773)]
[New Thread 0x7fff5effd6c0 (LWP 4774)]
[New Thread 0x7fff5e7fc6c0 (LWP 4775)]
[New Thread 0x7fff5dffb6c0 (LWP 4776)]
[New Thread 0x7fff5d7fa6c0 (LWP 4777)]
[New Thread 0x7fff5cff96c0 (LWP 4778)]
[New Thread 0x7fff3bfff6c0 (LWP 4779)]
[New Thread 0x7fff3b7fe6c0 (LWP 4780)]
bt
^C
Thread 1 "a.out" received signal SIGINT, Interrupt.
0x00007ffff7cd3733 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0,
    req=req@entry=0x7fffffffe6c0, rem=rem@entry=0x7fffffffe6d0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48
48        r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep_time64, clock_id, flags, req,
(gdb) bt
#0  0x00007ffff7cd3733 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0,
    req=req@entry=0x7fffffffe6c0, rem=rem@entry=0x7fffffffe6d0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:48
#1  0x00007ffff7cdf827 in __GI___nanosleep (req=req@entry=0x7fffffffe6c0, rem=rem@entry=0x7fffffffe6d0)
    at ../sysdeps/unix/sysv/linux/nanosleep.c:25
#2  0x00007ffff7f25850 in SDL_Delay_REAL (ms=<optimized out>)
    at /usr/src/debug/sdl2/SDL2-2.30.8/src/timer/unix/SDL_systimer.c:213
#3  0x00007ffff7e1caf3 in SDL_WaitEventTimeout_REAL (event=0x7fffffffe7f0, timeout=-1)
    at /usr/src/debug/sdl2/SDL2-2.30.8/src/events/SDL_events.c:1163
#4  0x0000555555555444 in main () at sdl2_crash.c:80

The minimal script didn't seem to trigger crash but gbd stopped at [New Thread 0x7fff3b7fe6c0 (LWP 4780)], and I had to interrupt manually to get the call stack info.

[slouken]

That isn't a crash call stack though... ?

[0v0katai]

That isn't a crash call stack though... ?

gdb doesn't prompt any crash while the minimal script is running, so I can't get the crash call stack atm.

[0v0katai]

Update: I was able to reproduce the result that prompts segfault explicitly:

valgrind log

==338== Memcheck, a memory error detector
==338== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
==338== Using Valgrind-3.23.0 and LibVEX; rerun with -h for copyright info
==338== Command: ./a.out
==338==
==338== Jump to the invalid address stated on the next line
==338==    at 0x0: ???
==338==    by 0x492D2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==338==    by 0x487DC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==338==    by 0x10926F: main (sdl2_crash.c:16)
==338==  Address 0x0 is not stack'd, malloc'd or (recently) free'd
==338==
==338==
==338== Process terminating with default action of signal 11 (SIGSEGV)
==338==  Bad permissions for mapped region at address 0x0
==338==    at 0x0: ???
==338==    by 0x492D2E1: SDL_VideoInit_REAL (SDL_video.c:555)
==338==    by 0x487DC4D: SDL_InitSubSystem_REAL.part.0 (SDL.c:277)
==338==    by 0x10926F: main (sdl2_crash.c:16)
==338==
==338== HEAP SUMMARY:
==338==     in use at exit: 49,537 bytes in 149 blocks
==338==   total heap usage: 1,739 allocs, 1,590 frees, 326,014 bytes allocated
==338==
==338== 29 bytes in 1 blocks are definitely lost in loss record 29 of 96
==338==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==338==    by 0x514A954: ???
==338==    by 0x5130BB8: ??? (in /usr/lib/libffi.so.8.1.4)
==338==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==338==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==338==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==338==    by 0x10926F: main (sdl2_crash.c:16)
==338==
==338== 29 bytes in 1 blocks are definitely lost in loss record 30 of 96
==338==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==338==    by 0x514A954: ???
==338==    by 0x5130B6B: ??? (in /usr/lib/libffi.so.8.1.4)
==338==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==338==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==338==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==338==    by 0x10926F: main (sdl2_crash.c:16)
==338==
==338== 38 bytes in 1 blocks are definitely lost in loss record 40 of 96
==338==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==338==    by 0x514A954: ???
==338==    by 0x513099A: ??? (in /usr/lib/libffi.so.8.1.4)
==338==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==338==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==338==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==338==    by 0x10926F: main (sdl2_crash.c:16)
==338==
==338== 48 (24 direct, 24 indirect) bytes in 1 blocks are definitely lost in loss record 60 of 96
==338==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==338==    by 0x515235F: ???
==338==    by 0x5130766: ??? (in /usr/lib/libffi.so.8.1.4)
==338==    by 0x49840F3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:153)
==338==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==338==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==338==    by 0x10926F: main (sdl2_crash.c:16)
==338==
==338== 520 bytes in 13 blocks are definitely lost in loss record 82 of 96
==338==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==338==    by 0x514E248: ???
==338==    by 0x514284C: ???
==338==    by 0x49840D3: SDL_DBus_Init_Spinlocked.lto_priv.0 (SDL_dbus.c:145)
==338==    by 0x487DA9E: UnknownInlinedFun (SDL_dbus.c:175)
==338==    by 0x487DA9E: SDL_InitSubSystem_REAL.part.0 (SDL.c:225)
==338==    by 0x10926F: main (sdl2_crash.c:16)
==338==
==338== 4,608 bytes in 2 blocks are possibly lost in loss record 95 of 96
==338==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==338==    by 0x40237E5: malloc (rtld-malloc.h:56)
==338==    by 0x40237E5: _dlfo_mappings_segment_allocate (dl-find_object.c:217)
==338==    by 0x40237E5: _dl_find_object_update_1 (dl-find_object.c:672)
==338==    by 0x40237E5: _dl_find_object_update (dl-find_object.c:806)
==338==    by 0x400C15F: dl_open_worker_begin (dl-open.c:756)
==338==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==338==    by 0x400B49F: dl_open_worker (dl-open.c:803)
==338==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==338==    by 0x400B903: _dl_open (dl-open.c:905)
==338==    by 0x4AC6F13: dlopen_doit (dlopen.c:56)
==338==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==338==    by 0x4001678: _dl_catch_error (dl-catch.c:260)
==338==    by 0x4AC69F2: _dlerror_run (dlerror.c:138)
==338==    by 0x4AC6FCE: dlopen_implementation (dlopen.c:71)
==338==    by 0x4AC6FCE: dlopen@@GLIBC_2.34 (dlopen.c:81)
==338==
==338== LEAK SUMMARY:
==338==    definitely lost: 640 bytes in 17 blocks
==338==    indirectly lost: 24 bytes in 1 blocks
==338==      possibly lost: 4,608 bytes in 2 blocks
==338==    still reachable: 44,265 bytes in 129 blocks
==338==         suppressed: 0 bytes in 0 blocks
==338== Reachable blocks (those to which a pointer was found) are not shown.
==338== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==338==
==338== For lists of detected and suppressed errors, rerun with: -s
==338== ERROR SUMMARY: 7 errors from 7 contexts (suppressed: 0 from 0)
Segmentation fault (core dumped)

Then I ran it immediately with gdb. This time gdb stopped when segfault occured:

gdb log

Reading symbols from a.out...
(gdb) r
Starting program: /home/calcloverhk/a.out

This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.archlinux.org>
Enable debuginfod for this session? (y or [n]) y
Debuginfod has been enabled.
To make this setting permanent, add 'set debuginfod enabled on' to .gdbinit.
Downloading separate debug info for system-supplied DSO at 0x7ffff7fc5000
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0  0x0000000000000000 in ?? ()
#1  0x00007ffff7efb471 in Wayland_VideoInit (_this=0x5555555609e0)
    at /usr/src/debug/sdl2/SDL2-2.30.8/src/video/wayland/SDL_waylandvideo.c:939
#2  0x00007ffff7eac2e2 in SDL_VideoInit_REAL (driver_name=<optimized out>)
    at /usr/src/debug/sdl2/SDL2-2.30.8/src/video/SDL_video.c:555
#3  0x00007ffff7dfcc4e in SDL_InitSubSystem_REAL (flags=16416) at /usr/src/debug/sdl2/SDL2-2.30.8/src/SDL.c:277
#4  0x0000555555555270 in main () at sdl2_crash.c:16

[slouken]

@Kontrabant, it looks like this is crashing in WAYLAND_xkb_context_new() with a NULL pointer. Aren't we checking that symbols were successfully loaded before calling that?

[Kontrabant]

Yes, the first thing Wayland_CreateDevice() does is load the Wayland symbols, including the xkb library. That symbol is non-optional, so loading the Wayland driver should fail if it can't be found.

[slouken]

@0v0katai, can you apply this patch and send us the output?

diff --git a/src/video/wayland/SDL_waylanddyn.c b/src/video/wayland/SDL_waylanddyn.c
index ea15da397..77fe2adb5 100644
--- a/src/video/wayland/SDL_waylanddyn.c
+++ b/src/video/wayland/SDL_waylanddyn.c
@@ -59,6 +59,9 @@ static void *WAYLAND_GetSym(const char *fnname, int *pHasModule, bool required)
         if (dynlib->lib) {
             fn = SDL_LoadFunction(dynlib->lib, fnname);
             if (fn) {
+                if (SDL_strcmp(fnname, "xkb_context_new") == 0) {
+                    SDL_Log("xkb_context_new found in %s\n", dynlib->libname);
+                }
                 break;
             }
         }

[thomas-touhey]

They requested my help in running the script using SDL with your patch, hence I'm placing the instructions I've found worked on my computer:

cd /tmp

# Clone and patch SDL3
git clone https://github.com/libsdl-org/SDL && cd SDL
curl -o log.patch https://haste.breizh.pm/raw/xozehubigo
patch -i log.patch -u src/video/wayland/SDL_waylanddyn.c

# Build SDL3
# Based on: https://wiki.libsdl.org/SDL3/Installation
mkdir build && cd build
cmake -DCMAKE_BUILD_TYPE=Debug -DSDL_SHARED=FALSE -DSDL_STATIC=TRUE ..
cmake --build . --config Debug --parallel

# Get, compile and run SDL script.
curl -o sdl3_crash.c https://haste.breizh.pm/raw/jukuyoyafo
gcc -g sdl3_crash.c -L. -lSDL3 -lm -Iinclude/ -I../include/ -I../include/SDL3
./a.out

For reference, sdl3_crash.c is basically sdl2_crash.c ported to SDL3, using the migration guide, with the following source code:

sdl3_crash.c

#include <stdio.h>
#include <SDL.h>

int main() {
    int ret = 1;
    int sdl_initialized = 0;
    SDL_Window *window = NULL;
    SDL_Renderer *renderer = NULL;
    SDL_Texture *texture = NULL;
    SDL_Event event;
    Uint32 *pixels;
    int pitch;
    int i;

    if (!SDL_InitSubSystem(SDL_INIT_VIDEO | SDL_INIT_EVENTS)) {
        fprintf(stderr, "Failed to initialize SDL: %s\n", SDL_GetError());
        goto fail;
    }
    sdl_initialized = 1;

    window = SDL_CreateWindow(
        "renderer crash on WSL",
        128,
        64,
        0
    );
    if (!window) {
        fprintf(
            stderr,
            "Couldn't create the window: %s\n",
            SDL_GetError()
        );
        goto fail;
    }

    /* Then let's create the renderer. */
    renderer = SDL_CreateRenderer(window, SDL_SOFTWARE_RENDERER);
    if (!renderer) {
        fprintf(
            stderr,
            "Couldn't create the renderer: %s\n",
            SDL_GetError()
        );
        goto fail;
    }

    texture = SDL_CreateTexture(
        renderer,
        SDL_PIXELFORMAT_ARGB8888,
        SDL_TEXTUREACCESS_STREAMING,
        128,
        64
    );
    if (!texture) {
        fprintf(
            stderr,
            "Couldn't create the texture: %s\n",
            SDL_GetError()
        );
        return 1;
    }

    if (!SDL_LockTexture(
        texture,
        NULL,
        (void **)&pixels,
        &pitch
    )) {
        fprintf(stderr, "Couldn't lock the texture: %s\n", SDL_GetError());
        goto fail;
    }

    for (i = 128 * 64 - 1; i >= 0; i--)
        pixels[i] = 0xFFFF0000;

    SDL_UnlockTexture(texture);

    if (!SDL_RenderTexture(renderer, texture, NULL, NULL)) {
        fprintf(
            stderr,
            "Couldn't render the texture: %s\n",
            SDL_GetError()
        );
        goto fail;
    }

    if (!SDL_RenderPresent(renderer)) {
        fprintf(stderr, "Couldn't render present: %s\n", SDL_GetError());
        goto fail;
    }

    while (SDL_WaitEvent(&event)) {
        if (event.type == SDL_EVENT_QUIT)
            break;
    }

    ret = 0;
fail:
    if (texture)
        SDL_DestroyTexture(texture);
    if (renderer)
        SDL_DestroyRenderer(renderer);
    if (window)
        SDL_DestroyWindow(window);
    if (sdl_initialized)
        SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_EVENTS);

    return ret;
}

[0v0katai]

Thanks @thomas-touhey. The SDL3 minimal script no longer segfaults and outputs the following message:
Failed to initialize SDL: No available video device

valgrind log

==477475== Memcheck, a memory error detector
==477475== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
==477475== Using Valgrind-3.23.0 and LibVEX; rerun with -h for copyright info
==477475== Command: ./a.out
==477475==
Failed to initialize SDL: No available video device
==477475==
==477475== HEAP SUMMARY:
==477475==     in use at exit: 16,883 bytes in 145 blocks
==477475==   total heap usage: 741 allocs, 596 frees, 234,804 bytes allocated
==477475==
==477475== 26 bytes in 1 blocks are definitely lost in loss record 36 of 96
==477475==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==477475==    by 0x4F78954: ???
==477475==    by 0x4F5EBB8: ???
==477475==    by 0x275E53: SDL_DBus_Init (SDL_dbus.c:151)
==477475==    by 0x2B03E5: SDL_InitSubSystem_REAL (SDL.c:298)
==477475==    by 0x12AEAD: SDL_InitSubSystem_DEFAULT (SDL_dynapi_procs.h:640)
==477475==    by 0x137282: SDL_InitSubSystem (SDL_dynapi_procs.h:640)
==477475==    by 0x124FC1: main (sdl3_crash.c:15)
==477475==
==477475== 26 bytes in 1 blocks are definitely lost in loss record 37 of 96
==477475==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==477475==    by 0x4F78954: ???
==477475==    by 0x4F5EB6B: ???
==477475==    by 0x275E53: SDL_DBus_Init (SDL_dbus.c:151)
==477475==    by 0x2B03E5: SDL_InitSubSystem_REAL (SDL.c:298)
==477475==    by 0x12AEAD: SDL_InitSubSystem_DEFAULT (SDL_dynapi_procs.h:640)
==477475==    by 0x137282: SDL_InitSubSystem (SDL_dynapi_procs.h:640)
==477475==    by 0x124FC1: main (sdl3_crash.c:15)
==477475==
==477475== 38 bytes in 1 blocks are definitely lost in loss record 48 of 96
==477475==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==477475==    by 0x4F78954: ???
==477475==    by 0x4F5E99A: ???
==477475==    by 0x275E53: SDL_DBus_Init (SDL_dbus.c:151)
==477475==    by 0x2B03E5: SDL_InitSubSystem_REAL (SDL.c:298)
==477475==    by 0x12AEAD: SDL_InitSubSystem_DEFAULT (SDL_dynapi_procs.h:640)
==477475==    by 0x137282: SDL_InitSubSystem (SDL_dynapi_procs.h:640)
==477475==    by 0x124FC1: main (sdl3_crash.c:15)
==477475==
==477475== 48 (24 direct, 24 indirect) bytes in 1 blocks are definitely lost in loss record 75 of 96
==477475==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==477475==    by 0x4F8035F: ???
==477475==    by 0x4F5E766: ???
==477475==    by 0x275E53: SDL_DBus_Init (SDL_dbus.c:151)
==477475==    by 0x2B03E5: SDL_InitSubSystem_REAL (SDL.c:298)
==477475==    by 0x12AEAD: SDL_InitSubSystem_DEFAULT (SDL_dynapi_procs.h:640)
==477475==    by 0x137282: SDL_InitSubSystem (SDL_dynapi_procs.h:640)
==477475==    by 0x124FC1: main (sdl3_crash.c:15)
==477475==
==477475== 520 bytes in 13 blocks are definitely lost in loss record 89 of 96
==477475==    at 0x48447A8: malloc (vg_replace_malloc.c:446)
==477475==    by 0x4F7C248: ???
==477475==    by 0x4F7084C: ???
==477475==    by 0x275E26: SDL_DBus_Init (SDL_dbus.c:143)
==477475==    by 0x2B03E5: SDL_InitSubSystem_REAL (SDL.c:298)
==477475==    by 0x12AEAD: SDL_InitSubSystem_DEFAULT (SDL_dynapi_procs.h:640)
==477475==    by 0x137282: SDL_InitSubSystem (SDL_dynapi_procs.h:640)
==477475==    by 0x124FC1: main (sdl3_crash.c:15)
==477475==
==477475== LEAK SUMMARY:
==477475==    definitely lost: 634 bytes in 17 blocks
==477475==    indirectly lost: 24 bytes in 1 blocks
==477475==      possibly lost: 0 bytes in 0 blocks
==477475==    still reachable: 16,225 bytes in 127 blocks
==477475==         suppressed: 0 bytes in 0 blocks
==477475== Reachable blocks (those to which a pointer was found) are not shown.
==477475== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==477475==
==477475== For lists of detected and suppressed errors, rerun with: -s
==477475== ERROR SUMMARY: 5 errors from 5 contexts (suppressed: 0 from 0)

[slouken]

This looks correct, thanks!