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Date: Thu, 29 Jun 2017 18:33:47 +0800
From: Eryu Guan <eguan@redhat.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org, liwan@redhat.com
Subject: Re: [v4.12-rc1 regression] mount ext4 fs results in kernel crash on
 PPC64le host
Message-ID: <20170629103347.GR23360@eguan.usersys.redhat.com>
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On Thu, Jun 29, 2017 at 08:27:11PM +1000, Michael Ellerman wrote:
> Eryu Guan <eguan@redhat.com> writes:
> 
> > Hi all,
> >
> > Li Wang and I are constantly seeing ppc64le hosts crashing due to bad
> > page access. But it's not reproducing on every ppc64le host we've
> > tested, but it usually happened in filesystem testings.
> 
> <snip>
> 
> > And I've confirmed that reverting above commit 'resolves' the crash.
> 
> Do you mean ~v4.12-rc7 with that commit reverted still triggers the
> crash?

Correct. I also confirmed that reverting it when it was HEAD also fixed
the crash.

Thanks,
Eryu