[v4.12-rc1 regression] mount ext4 fs results in kernel crash on PPC64le host

[Michael Ellerman]

Eryu Guan <eguan at 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?

cheers