ext4 filesystem corruption with 4.10-rc2 on ppc64le
Chandan Rajendra
chandan at linux.vnet.ibm.com
Wed Jan 4 17:02:42 AEDT 2017
On Wednesday, January 04, 2017 04:18:08 PM Anton Blanchard wrote:
> Hi,
>
> I'm consistently seeing ext4 filesystem corruption using a mainline
> kernel. It doesn't take much to trigger it - download a ppc64le Ubuntu
> cloud image, boot it in KVM and run:
>
> sudo apt-get update
> sudo apt-get dist-upgrade
> sudo reboot
>
> And it never makes it back up, dying with rather severe filesystem
> corruption.
Hi,
The patch at https://patchwork.kernel.org/patch/9488235/ should fix the
bug.
>
> I've narrowed it down to:
>
> 64e1c57fa474 ("ext4: Use clean_bdev_aliases() instead of iteration")
> e64855c6cfaa ("fs: Add helper to clean bdev aliases under a bh and use it")
> ce98321bf7d2 ("fs: Remove unmap_underlying_metadata")
>
> Backing these patches out fixes the issue.
>
> Anton
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--
chandan
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