On 01/04/2017 08:28 AM, Theodore Ts'o wrote:
> On Wed, Jan 04, 2017 at 11:32:42AM +0530, Chandan Rajendra wrote:
>> On Wednesday, January 04, 2017 04:18:08 PM Anton Blanchard wrote:
>>> 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.
>>
>> The patch at https://patchwork.kernel.org/patch/9488235/ should fix the
>> bug.
> 
> It looks like this patch is already queued up on the "for-linus"
> branch on the linux-block.git tree.
> 
> Chandra, thanks for pointing this out!  I had missed your e-mail from
> Christmas day, and it was on my todo list to figure out why I was
> seeing lots of 1k block regressions on gce-xfstests post-merge window
> that wasn't showing up on the ext4.git tree before I sent my pull
> request to Linus.
> 
> Jens, could you expedite a pull request to Linus?  This is affecting
> ext4 on 1k block file systems on x86/x86_64, so this is not a ppc-only
> regression.  

Yes, it'll go out this morning.

-- 
Jens Axboe

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