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Picks up the io_uring seccomp fix from https://github.com/stacklok/go-microvm/releases/tag/v0.0.33 — io_uring_setup/enter/register move from KillProcess to Errno so libuv 1.52+ probes return -EPERM and fall back to epoll instead of killing the process with SIGSYS at startup. Fixes the symptom where bbox gemini exited within 200ms with no diagnostic output. Node 25 ships libuv 1.52, whose uv__use_io_uring() probes io_uring unconditionally for the non-SQPOLL path before consulting UV_USE_IO_URING. Verified end-to-end: bbox gemini now starts the interactive Gemini CLI UI and stays alive in the VM (was crashing in 200ms). task verify passes. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Picks up the io_uring seccomp fix from go-microvm v0.0.33 —
io_uring_setup/enter/registermove fromSECCOMP_RET_KILL_PROCESStoSECCOMP_RET_ERRNOso libuv 1.52+ probes return-EPERMand fall back to epoll instead of killing the process with SIGSYS at startup.Fixes the symptom where
bbox geminiexited within ~200ms with no diagnostic output. Node 25 ships libuv 1.52, whoseuv__use_io_uring()probes io_uring unconditionally for the non-SQPOLL path before consultingUV_USE_IO_URING:so the env-var workaround was a no-op for our case.
No brood-box code changes required — the fix is entirely in the guest seccomp filter that go-microvm installs at boot. Other agents (claude-code, codex, opencode, hermes) are unaffected; they don't trigger the io_uring probe path.
Test plan
task fetch-runtime --forcepulls v0.0.33 runtime artifactstask build-init --force && task build --forcesucceeds (runtimebin.Version=v0.0.33embedded)task verify(fmt + lint + test) passesbbox geminiboots the interactive Gemini CLI UI inside the VM (was crashing in 200ms before this bump)🤖 Generated with Claude Code