Bug#1143508: Baseline violation on amd64: godot requires SSE4.1 (pinsrq), causing SIGILL

[Jakob Haufe]

Hi Otto,

On Mon, 3 Aug 2026 11:15:27 +0300
Otto Kekäläinen <otto at debian.org> wrote:

> Thanks for reporting this issue.. Probably due to your processor from 2009
> not supporting some newer amd64 instruction (pinsrq?).

Yes exactly. But the CPU still meets the baseline requirements, so any
application that unconditionally requires SSE4.1 on amd64 is rc-buggy.

> This is either due to the toolchain in Debian, or something in Godot itself.

I suspect the latter, or at least the build system of Godot.

> Have you had issues with any other app in Debian? That would indicate this
> might be a toolchain problem.

I found something similar in freerdp (#1095808) and numpy (#1142428).

> Or did you already debug this the use of SSE4.1 (pinsrq) is from Godot
> specifically, and where in that case? Can it be easily patched to use some
> fallback on older cpus?

The backtrace and disassembly is from godot 4.6.3+ds-1, as indicated.

I currently lack the time to familiarize myself with Godots packaging
and/or build system, so I can't say how easy it is to fix.

Cheers,
sur5r

[TOFU discarded]

-- 
ceterum censeo microsoftem esse delendam.
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