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illegal instruction cpu error #8073

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opened 2026-02-16 18:09:05 -05:00 by yindo · 2 comments
yindo commented 2026-02-16 18:09:05 -05:00
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Originally created by @SHOOP111 on GitHub (Jan 30, 2026).

Originally assigned to: @rekram1-node on GitHub.

Description

i updated to the latest version and i got errors. seems like my cpu does not support AVX and uhhh can you guys please degrade bun to fix this?

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Originally created by @SHOOP111 on GitHub (Jan 30, 2026). Originally assigned to: @rekram1-node on GitHub. ### Description i updated to the latest version and i got errors. seems like my cpu does not support AVX and uhhh can you guys please degrade bun to fix this? ### Plugins _No response_ ### OpenCode version _No response_ ### Steps to reproduce _No response_ ### Screenshot and/or share link _No response_ ### Operating System Windows 10 ### Terminal _No response_
yindo added the windowsbugperf labels 2026-02-16 18:09:05 -05:00
yindo closed this issue 2026-02-16 18:09:05 -05:00
yindo commented 2026-02-16 18:09:06 -05:00
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@github-actions[bot] commented on GitHub (Jan 30, 2026):

This issue might be a duplicate of existing issues. Please check:

  • #8744: [Bug] Windows binary selection picks AVX version on non-AVX CPUs - This directly addresses the issue of OpenCode crashing on non-AVX CPUs with a detailed explanation and workaround
  • #8345: zsh: illegal hardware instruction opencode - Similar illegal instruction error on older Mac hardware without AVX support
  • #8611: v1.1.21-baseline crashing with Illegal Instruction (regression from v1.1.20) - Baseline binary still crashing on non-AVX CPUs
  • #641: Illegal instruction in linux - Related illegal instruction error on Linux

Feel free to ignore if your specific case is different from these issues, but #8744 in particular provides a detailed explanation of the root cause and potential workarounds for Windows users without AVX support.

@github-actions[bot] commented on GitHub (Jan 30, 2026): This issue might be a duplicate of existing issues. Please check: - #8744: [Bug] Windows binary selection picks AVX version on non-AVX CPUs - This directly addresses the issue of OpenCode crashing on non-AVX CPUs with a detailed explanation and workaround - #8345: zsh: illegal hardware instruction opencode - Similar illegal instruction error on older Mac hardware without AVX support - #8611: v1.1.21-baseline crashing with Illegal Instruction (regression from v1.1.20) - Baseline binary still crashing on non-AVX CPUs - #641: Illegal instruction in linux - Related illegal instruction error on Linux Feel free to ignore if your specific case is different from these issues, but #8744 in particular provides a detailed explanation of the root cause and potential workarounds for Windows users without AVX support.
yindo commented 2026-02-16 18:09:06 -05:00
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@Destreyf commented on GitHub (Jan 30, 2026):

@SHOOP111 if you're using the TUI version (which i'm guessing you are based on your bun comment), you can grab the baseline binary from the releases: opencode-windows-x64-baseline.zip

This should run on non avx cpu's, if you're using the desktop app, it doesn't look like they have a baseline build, and i'm not certain they can make one.

@Destreyf commented on GitHub (Jan 30, 2026): @SHOOP111 if you're using the TUI version (which i'm guessing you are based on your bun comment), you can grab the baseline binary from the releases: [opencode-windows-x64-baseline.zip](https://github.com/anomalyco/opencode/releases/download/v1.1.46/opencode-windows-x64-baseline.zip) This should run on non avx cpu's, if you're using the desktop app, it doesn't look like they have a baseline build, and i'm not certain they can make one.
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Reference: anomalyco/opencode#8073
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