Bug#1019855: Fwd: libc6: immediately crashes with SIGILL on 4th gen Intel Core CPUs (seems related to AVX2 instructions), bricking the whole system

Hi On 2022-09-25 13:43, Aurelien Jarno wrote: > > Running a quick diff against old procinfo reveals that "flags" has the > > following new entries now: > > > > tsc_deadline_timer ssbd ibrs ibpb stibp bmi1 bmi2 md_clear flush_l1d > > > > > it looks like that the BMI2 > > > instructions support

Bug#1019855: Fwd: libc6: immediately crashes with SIGILL on 4th gen Intel Core CPUs (seems related to AVX2 instructions), bricking the whole system

Is there an easy way to unbrick a system affected by the issue? such as a kernel-line option or a configuration file in /etc? I don't see how I can set a GLIBC_TUNABLES environment variable for the whole system. I was trying during my testing to set such option globally somehow, but failed,

Bug#1019855: Fwd: libc6: immediately crashes with SIGILL on 4th gen Intel Core CPUs (seems related to AVX2 instructions), bricking the whole system

Hi, On 2022-10-04 19:44, debian-bug-rep...@p0358.net wrote: > > Is there an easy way to unbrick a system affected by the issue? such as > > a kernel-line option or a configuration file in /etc? I don't see how I > > can set a GLIBC_TUNABLES environment variable for the whole system. > > I was

Bug#1019855: Fwd: libc6: immediately crashes with SIGILL on 4th gen Intel Core CPUs (seems related to AVX2 instructions), bricking the whole system

Hello, Is there an easy way to unbrick a system affected by the issue? such as a kernel-line option or a configuration file in /etc? I don't see how I can set a GLIBC_TUNABLES environment variable for the whole system. Samuel

Bug#1019855: Fwd: libc6: immediately crashes with SIGILL on 4th gen Intel Core CPUs (seems related to AVX2 instructions), bricking the whole system

Hi, On 2022-10-04 08:51, Aurelien Jarno wrote: > Hi > > On 2022-09-25 13:43, Aurelien Jarno wrote: > > > Running a quick diff against old procinfo reveals that "flags" has the > > > following new entries now: > > > > > > tsc_deadline_timer ssbd ibrs ibpb stibp bmi1 bmi2 md_clear flush_l1d > > >

[Git][glibc-team/glibc][bullseye] debian/patches/local-require-bmi-in-avx2-ifunc.diff: new patch extracted from...

Aurelien Jarno pushed to branch bullseye at GNU Libc Maintainers / glibc Commits: 0456b28d by Aurelien Jarno at 2022-10-04T23:38:48+02:00 debian/patches/local-require-bmi-in-avx2-ifunc.diff: new patch extracted from an upstream commit, to change the AVX2 ifunc selector to require the BMI2