Re: AVX register corruption from signal delivery

[Barret Rhoden]

On 11/26/19 3:20 PM, Sebastian Andrzej Siewior wrote:
> On 2019-11-26 14:49:55 [-0500], Barret Rhoden wrote:
> > Hi -
> Hi,
>
> > The bug requires the kernel to be built with GCC 9 to trigger.  In
> > particular, arch/x86/kernel/fpu/signal.c needs to be built with GCC 9.
>
> I've been pinged already, I will look into this. Please send me a
> .config just to be sure. From browsing over the bug CONFIG_PREEMPTION
> was required.

Thanks; config attached.  I've been able to recreate it in QEMU with at 
least 2 cores.

Barret

Attachment: avx-bug.config.gz
Description: application/gzip