Vulkan backend crashes

[gera2342]

Wayland-native version:

Vulkan Driver Name: Intel open-source Mesa driver
Vulkan Device (GPU0): Intel(R) UHD Graphics 620 (WHL GT2)
Vulkan Driver Info: Mesa 26.0.5
[New Thread 0x7fffbb5fc6c0 (LWP 9743)]
[New Thread 0x7fffdffff6c0 (LWP 9744)]
[New Thread 0x7fffe77fe6c0 (LWP 9745)]
[New Thread 0x7fffc7fff6c0 (LWP 9746)]
Warning: vulkan graphics driver does not support VK_PRESENT_MODE_IMMEDIATE_KHR.
[New Thread 0x7fffd7fff6c0 (LWP 9747)]
Initiating OpenAL: OpenAL Soft.
[New Thread 0x7fffc77fe6c0 (LWP 9748)]
[New Thread 0x7fffc6ffd6c0 (LWP 9749)]
AL_HRTF_STATUS: DISABLED.
Vulkan (Wayland) renderer initialized
xdg_surface#14: error 3: must ack the initial configure before attaching buffer
[Thread 0x7fffd7fff6c0 (LWP 9747) exited]

Thread 1 "fteqw" received signal SIGSEGV, Segmentation fault.
0x00007ffff5fedb54 in wl_proxy_get_version () from /usr/lib64/libwayland-client.so.0
(gdb) bt
#0  0x00007ffff5fedb54 in wl_proxy_get_version () at /usr/lib64/libwayland-client.so.0
#1  0x00007fffba70d9e4 in wsi_wl_surface_create_swapchain () at /usr/lib64/libvulkan_intel.so
#2  0x00007fffba6fecb9 in wsi_CreateSwapchainKHR () at /usr/lib64/libvulkan_intel.so
#3  0x00007fffe40f057a in terminator_CreateSwapchainKHR () at /usr/lib64/libvulkan.so.1
#4  0x0000555555be9dfc in VK_CreateSwapChain.lto_priv.0 ()
#5  0x0000555555bf66cf in VK_SCR_UpdateScreen ()
#6  0x00005555559386d6 in Host_Frame ()
#7  0x00005555555d2d96 in main ()

SDL2 version (-DFTE_USE_SDL=true):

Setting mode 1920*1080 16bpp 75hz Vulkan-SDL
[New Thread 0x7fffaf1fe6c0 (LWP 12861)]
Vulkan Driver Name: Intel open-source Mesa driver
Vulkan Device (GPU0): Intel(R) UHD Graphics 620 (WHL GT2)
Vulkan Driver Info: Mesa 26.0.5
[New Thread 0x7fffad7fa6c0 (LWP 12862)]
[New Thread 0x7fffae2ff6c0 (LWP 12863)]
[New Thread 0x7fffa7bf36c0 (LWP 12864)]
[New Thread 0x7fffa693b6c0 (LWP 12865)]
Warning: vulkan graphics driver does not support VK_PRESENT_MODE_IMMEDIATE_KHR.
[New Thread 0x7fffa48466c0 (LWP 12866)]
Initiating OpenAL: OpenAL Soft.
[New Thread 0x7fff1fffe6c0 (LWP 12867)]
[New Thread 0x7fff1f7fd6c0 (LWP 12868)]
AL_HRTF_STATUS: DISABLED.
Vulkan-SDL renderer initialized

Thread 1 "fteqw" received signal SIGSEGV, Segmentation fault.
0x0000555555bcc403 in BE_DrawMeshChain_Internal ()
(gdb) bt
#0  0x0000555555bcc403 in BE_DrawMeshChain_Internal ()
#1  0x0000555555bd6590 in BE_SubmitMeshesSortList.lto_priv.0 ()
#2  0x0000555555bd6766 in VKBE_SubmitMeshes ()
#3  0x0000555555bd6f62 in VKBE_DrawWorld ()
#4  0x0000555555aaf553 in Surf_DrawWorld ()
#5  0x0000555555bd78bb in VK_R_RenderView ()
#6  0x0000555555b1a937 in V_RenderView ()
#7  0x0000555555bddaa7 in VK_SCR_UpdateScreen ()
#8  0x0000555555926e86 in Host_Frame ()
#9  0x00005555555cf273 in main ()

Also happens on X.

[Xylemon]

Interesting, don't seem to be getting this with my AUR builds. What distro is this happening on? Have you tried compiling latest git and using SDL 3 + Vulkan?

[gera2342]

Yes, SDL3 and vid_renderer vk also crashes (after one second in game like with other backends).

Thread 1 "fteqw" received signal SIGSEGV, Segmentation fault.
0x0000555555bd3c43 in BE_DrawMeshChain_Internal.lto_priv.0 ()
(gdb) bt
#0  0x0000555555bd3c43 in BE_DrawMeshChain_Internal.lto_priv.0 ()
#1  0x0000555555be0e60 in BE_SubmitMeshesSortList.lto_priv.0 ()
#2  0x0000555555be1036 in VKBE_SubmitMeshes ()
#3  0x0000555555be1842 in VKBE_DrawWorld ()
#4  0x0000555555aae9d3 in Surf_DrawWorld ()
#5  0x0000555555be219b in VK_R_RenderView ()
#6  0x0000555555b20bf7 in V_RenderView ()
#7  0x0000555555be6e57 in VK_SCR_UpdateScreen ()
#8  0x000055555592bebb in Host_Frame ()
#9  0x00005555555da158 in SDL_AppIterate ()
#10 0x00007ffff78b7431 in SDL_IterateMainCallbacks (pump_events=<optimized out>) at /home/herman/prog/build/SDL/src/main/SDL_main_callbacks.c:130
#11 0x00007ffff7a68574 in GenericIterateMainCallbacks () at /home/herman/prog/build/SDL/src/main/generic/SDL_sysmain_callbacks.c:51
#12 SDL_EnterAppMainCallbacks_REAL
    (argc=<optimized out>, argv=<optimized out>, appinit=<optimized out>, appiter=<optimized out>, appevent=<optimized out>, appquit=<optimized out>) at /home/herman/prog/build/SDL/src/main/generic/SDL_sysmain_callbacks.c:62
#13 0x00007ffff763b1bb in ??? () at /usr/lib64/libc.so.6
#14 0x00007ffff763b27b in __libc_start_main () at /usr/lib64/libc.so.6
#15 0x00005555555d0325 in _start ()

Gentoo, mesa drivers, intel gpu. vulkaninfo.txt

[gera2342]

Weirdly enough it doesn't crash with -DCMAKE_BUILD_TYPE=Debug.

[sandstranger]

Weirdly enough it doesn't crash with -DCMAKE_BUILD_TYPE=Debug.

It does not weird, vulkan render code in FTEQW has a lot of UB, which cause crashes on ARM even with -O0 flag. I fixed it in FTEQW Android port even for Armv7 .
But vulkan render worked awful on my 8 elite 1 device, shows only grey screen.
And on mali gpus had memory leaks, so I disabled it, and used Angle as vulkan render
x86_x64 often forgives UB in debug builds, this is why you do not have crashes in your debug build.
But ARM, especially Armv7 never forgives UB code even in debug builds.
Use asan, UBSan or other things to find UB places and fix them.
About sending PR with UB fix - I do not have time for this, so fix it without me by yourself.