Linux kernel: powerpc: KVM guest can trigger host crash on Power8

[John Paul Adrian Glaubitz]

Hi Michael!

On 10/28/21 08:39, Michael Ellerman wrote:
> That completed fine on my BE VM here.
> 
> I ran these in two tmux windows:
>   $ sbuild -d sid --arch=powerpc --no-arch-all gcc-11_11.2.0-10.dsc
>   $ sbuild -d sid --arch=ppc64 --no-arch-all gcc-11_11.2.0-10.dsc

Could you try gcc-10 instead? It's testsuite has crashed the host for me
with a patched kernel twice now.

$ dget -u https://deb.debian.org/debian/pool/main/g/gcc-10/gcc-10_10.3.0-12.dsc
$ sbuild -d sid --arch=powerpc --no-arch-all gcc-10_10.3.0-12.dsc
$ sbuild -d sid --arch=ppc64 --no-arch-all gcc-10_10.3.0-12.dsc

Thanks,
Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz at debian.org
`. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
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