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SubjectRe: AVX register corruption from signal delivery
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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



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