Re: KCSAN + KVM = host reset

[Qian Cai]

> On Apr 8, 2020, at 5:25 PM, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
> 
> On 08/04/20 22:59, Qian Cai wrote:
>> Running a simple thing on this AMD host would trigger a reset right away.
>> Unselect KCSAN kconfig makes everything work fine (the host would also
>> reset If only "echo off > /sys/kernel/debug/kcsanâ before running qemu-kvm).
> 
> Is this a regression or something you've just started to play with?  (If
> anything, the assembly language conversion of the AMD world switch that
> is in linux-next could have reduced the likelihood of such a failure,
> not increased it).

I donât remember I had tried this combination before, so donât know if it is a
regression or not.