Re: crash in xfs in current

Reinoud Koornstra
2016-06-08T04:40:18Z

On Tue, Jun 7, 2016 at 10:16 PM, Reinoud Koornstra
<reinoudkoornstra@gmail.com> wrote:
> On Tue, Jun 7, 2016 at 5:40 PM, Reinoud Koornstra
> <reinoudkoornstra@gmail.com> wrote:
>> Hi Christoph,
>>
>> Now my git log show this:
>>
>> commit 555b67e4e729ca544bb4028ab12e532c68b70ddb
>> Merge: 544ad71 ad438c4
>> Author: Dave Chinner <david@fromorbit.com>
>> Date: Fri May 20 10:34:00 2016 +1000
>>
>> Merge branch 'xfs-4.7-inode-reclaim' into for-next
>>
>> commit 544ad71fc8e20fb3a6f50f00d487751492cd8409
>> Merge: 2a4ad58 e6b3bb7
>> Author: Dave Chinner <david@fromorbit.com>
>> Date: Fri May 20 10:33:38 2016 +1000
>>
>> Merge branch 'xfs-4.7-error-cfg' into for-next
>>
>> commit 2a4ad5894c819978dca5595396d54d51c3aca694
>> Merge: a7792aa 6e3e6d5
>> Author: Dave Chinner <david@fromorbit.com>
>> Date: Fri May 20 10:33:17 2016 +1000
>>
>> Merge branch 'xfs-4.7-misc-fixes' into for-next
>>
>> commit a7792aad644a259375002db8c9d9e03fd50bf509
>> Merge: 5b911354 3ab3ffc
>> Author: Dave Chinner <david@fromorbit.com>
>> Date: Fri May 20 10:32:35 2016 +1000
>>
>> Is this correct?
>> If so, let me build and test.
>> Building it already as we speak, but it would be nice if you could
>> confirm I'm actually testing the right thing.
>> Though, wouldn't it be good to repro and get a core file as well?
>> Or would the test of this commit narrow down the possibilities as well?
>> Thanks,
>>
>> Reinoud.
>>
>
> Ouch, forgive me for not responding inline previously.
> For what it's worth, i've compiled the kernel and are running it as we speak.
> Will do testing and let you know.

Ok, going back to commit 555b67e4e729ca544bb4028ab12e532c68b70ddb
brings the kernel back to 4.6-rc1.
With that kernel I crash all over the place, so that's something I cannot run.
Is there a way to get the 4.7-rc1 or rc2 without the commits for XFS?

Reinoud.

> Thanks,
>
> Reinoud.
>
>> On Tue, Jun 7, 2016 at 7:44 AM, Christoph Hellwig <hch@infradead.org> wrote:
>>> On Tue, Jun 07, 2016 at 12:52:39PM +0200, Daniel Wagner wrote:
>>>> >> I try to reproduce it on 4.6. My steps do not always trigger the crash.
>>>> >> So I can't be really sure if 4.6 doesn't show it, it does not happen.
>>>> >
>>>> > I have never been able to trigger this in 4.6 and it's my failsafe
>>>> > reboot (4.6.0).
>>>> > In 4.7-rc1 it's just a matter of time before I hit it.
>>>> > I do a lot of transactions, using git, extraction of tar.xz etc normally.
>>>>
>>>> This rings a bell. I though the lockperf tests triggered it. Before I
>>>> compiled a new kernel I did a 'git checkout' step.
>>>
>>> Thanks for testing this to both of you. Can you try to build a kernel
>>> from git commit 555b67e4e729ca544bb4028ab12e532c68b70ddb - this is the
>>> XFS pull request that Dave sent to Linux for Linux 4.7-rc, so it has
>>> all the XFS changes relative to 4.6, but none of the others like the VFS
>>> changes.