lkml.org 
[lkml]   [2023]   [Aug]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Hang when booting guest kernels compiled with clang after SRSO mitigations
On Fri, Aug 11, 2023 at 09:03:18AM -0700, Sean Christopherson wrote:
> Might be the flags bug that borks KVM's fastop() emulation. If that fixes things,
> my guess is that bringing APs out of WFS somehow triggers emulation.

I was just about to connect you two guys, thanks Sean!

> https://lore.kernel.org/all/20230811155255.250835-1-seanjc@google.com

Nathan, if you could test, that would be cool.

Also, Nick has another patch for -mno-shared, it probably isn't fixing
yours but it would be good to test it too, just in case:

https://github.com/ClangBuiltLinux/linux/issues/1911#issuecomment-1674993796

Thx!

--
Regards/Gruss,
Boris.

https://people.kernel.org/tglx/notes-about-netiquette

\
 
 \ /
  Last update: 2023-08-11 18:12    [W:0.062 / U:0.520 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site