On Wed, 2023-10-18 at 14:01 +0200, Ben Hutchings wrote: > On Tue, 2023-10-17 at 20:03 +0200, Ben Hutchings wrote: > > On Tue, 2023-10-17 at 10:57 -0500, Justin wrote: > > > Hello all, > > > > > > I have recently encountered a case where a VIA C3 Nehemaiah CPU returns > > > "Illegal > > > Instruction" when trying to run 'sudo' or 'visudo'. > > > > > > After some poking around, I discovered that the FreeBSD folks have > > > encountered this > > > as well, and that it appears to be an issue with GCC where the > > > --fcf-protection > > > option results in the use of the ENDBR32 instruction, which is not > > > supported on the > > > VIA C3 Nehemaiah processor (despite being otherwise i686-compatible). > > [...] > > > > ENDBR32 uses one of the previously reserved hint encodings that i686 > > processors are supposed to ignore if they don't specifically support > > them. The release notes for Debian 12 "bookworm" state that the i386 > > architecture now requires that: > > https://www.debian.org/releases/testing/release-notes/issues.en.html#i386-is-i686 > > Sorry, the page I linked is for testing ("trixie", which will become > Debian 13). Debian 12 "bookworm" is supposed to still support this > CPU.
Sorry again, the same note *is* there for stable: https://www.debian.org/releases/stable/i386/release-notes/ch-information.en.html#i386-is-i686 Ben. -- Ben Hutchings To err is human; to really foul things up requires a computer.
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