Re: [PATCH 0/7] xfs: log race fixes and cleanups

Dave Chinner
2019-09-04T22:57:22Z

On Tue, Sep 03, 2019 at 10:56:19PM -0700, Christoph Hellwig wrote:
> On Tue, Sep 03, 2019 at 10:26:00PM -0700, Christoph Hellwig wrote:
> > On Wed, Sep 04, 2019 at 02:24:44PM +1000, Dave Chinner wrote:
> > > HI folks,
> > >
> > > This series of patches contain fixes for the generic/530 hangs that
> > > Chandan and Jan reported recently. The first patch in the series is
> > > the main fix for this, though in theory the last patch in the series
> > > is necessary to totally close the problem off.
> >
> > While I haven't been active in the thread I already reported this weeks
> > ago as well..

Ok, I didn't know that, and now that I look there's no information
that I can use to determine what went wrong...

> And unfortunately generic/530 still hangs for me with this series.

Where does it hang?

> This is an x86-64 VM with 4G of RAM and virtio-blk, default mkfs.xfs
> options from current xfsprogs, 20G test and scratch fs.

That's pretty much what one of my test rigs is, except iscsi luns
rather than virtio-blk. I haven't been able to reproduce the issues,
so I'm kinda flying blind w.r.t. to testing them here. Can you
get a trace of what is happening (xfs_trans*, xfs_log*, xfs_ail*
tracepoints) so I can have a deeper look?

Cheers,

Dave.
--
Dave Chinner
david@fromorbit.com