Re: [tip: x86/fpu] x86/fpu/xstate: Define new functions for clearing fpregs and xstates

From: Dave Hansen
Date: Tue Nov 29 2022 - 13:17:19 EST


On 11/29/22 03:19, Ivan Zahariev wrote:
> Can you please take a look into this bug which syzbot tracked to a
> commit of yours (b860eb8dce5906b14e3a7f3c771e0b3d6ef61b94). Even since
> we switched from kernel 4.14 to 5.15 we are experiencing often random
> segmentation faults with the following error in "dmesg":

Which kernel are you running, exactly? There is a fix for the commit
that you identified:

> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=484cea4f362e

but it should have been in 5.15.

Is there a chance you could test current mainline and see if the issue
is still there?