crash in xfs in current

[Christoph Hellwig]

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.