On Sun, Apr 14, 2024 at 08:41:52AM +0200, Linux regression tracking (Thorsten Leemhuis) wrote: > Hi, Thorsten here, the Linux kernel's regression tracker. > > On 28.03.24 22:17, Pawan Gupta wrote: > > On Thu, Mar 28, 2024 at 03:36:28PM +0800, kernel test robot wrote: > >> compiler: clang-17 > >> test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G > >> > >> If you fix the issue in a separate patch/commit (i.e. not just a new version of > >> the same patch/commit), kindly add following tags > >> | Reported-by: kernel test robot <oliver.sang@xxxxxxxxx> > >> | Closes: https://lore.kernel.org/oe-lkp/202403281553.79f5a16f-lkp@xxxxxxxxx > > TWIMC, a user report general protection faults with dosemu that were > bisected to a 6.6.y backport of the commit that causes the problem > discussed in this thread (6613d82e617dd7 ("x86/bugs: Use ALTERNATIVE() > instead of mds_user_clear static key")). > > User compiles using gcc, so it might be a different problem. Happens > with 6.8.y as well. > > The problem occurs with x86-32 kernels, but strangely only on some of > the x86-32 systems the reporter has (e.g. on some everything works > fine). Makes me wonder if the commit exposed an older problem that only > happens on some machines. > > For details see https://bugzilla.kernel.org/show_bug.cgi?id=218707 > Could not CC the reporter here due to the bugzilla privacy policy; if > you want to get in contact, please use bugzilla. Sorry for the late response, I was off work. I will look into this and get back. I might need help reproducing this issue, but let me first see if I can reproduce with the info in the bugzilla.
