From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 0/7] xfs: log race fixes and cleanups
Date: Thu, 5 Sep 2019 17:10:31 +1000 [thread overview]
Message-ID: <20190905071031.GD1119@dread.disaster.area> (raw)
In-Reply-To: <20190905065133.GA21840@infradead.org>
On Wed, Sep 04, 2019 at 11:51:33PM -0700, Christoph Hellwig wrote:
> On Thu, Sep 05, 2019 at 08:57:16AM +1000, Dave Chinner wrote:
> > > 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?
>
> console output below, traces attached.
Thanks, I'll have a look in a minute. I'm pretty sure I know what it
will show - I got a trace from Chandan earlier this afternoon and
the problem is log recovery doesn't yeild the cpu until it runs out
of transaction reservation space, so the push work doesn't run
because workqueue default behaviour is strict "run work only on the
CPU it is queued on"....
I've got an additional patch in testing right now...
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2019-09-05 7:10 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-04 4:24 [PATCH 0/7] xfs: log race fixes and cleanups Dave Chinner
2019-09-04 4:24 ` [PATCH 1/7] xfs: push the AIL in xlog_grant_head_wake Dave Chinner
2019-09-04 6:07 ` Christoph Hellwig
2019-09-04 21:46 ` Dave Chinner
2019-09-04 4:24 ` [PATCH 2/7] xfs: fix missed wakeup on l_flush_wait Dave Chinner
2019-09-04 6:07 ` Christoph Hellwig
2019-09-04 21:47 ` Dave Chinner
2019-09-04 4:24 ` [PATCH 3/7] xfs: factor debug code out of xlog_state_do_callback() Dave Chinner
2019-09-04 6:10 ` Christoph Hellwig
2019-09-04 21:14 ` Dave Chinner
2019-09-04 4:24 ` [PATCH 4/7] xfs: factor callbacks " Dave Chinner
2019-09-04 6:13 ` Christoph Hellwig
2019-09-04 6:32 ` Christoph Hellwig
2019-09-04 21:22 ` Dave Chinner
2019-09-04 4:24 ` [PATCH 5/7] xfs: factor iclog state processing " Dave Chinner
2019-09-04 6:42 ` Christoph Hellwig
2019-09-04 21:43 ` Dave Chinner
2019-09-04 4:24 ` [PATCH 6/7] xfs: push iclog state cleaning into xlog_state_clean_log Dave Chinner
2019-09-04 6:44 ` Christoph Hellwig
2019-09-04 4:24 ` [PATCH 7/7] xfs: push the grant head when the log head moves forward Dave Chinner
2019-09-04 6:45 ` Christoph Hellwig
2019-09-04 21:49 ` Dave Chinner
2019-09-04 19:34 ` Brian Foster
2019-09-04 22:50 ` Dave Chinner
2019-09-05 16:25 ` Brian Foster
2019-09-06 0:02 ` Dave Chinner
2019-09-06 13:10 ` Brian Foster
2019-09-07 15:10 ` Brian Foster
2019-09-08 23:26 ` Dave Chinner
2019-09-10 9:56 ` Brian Foster
2019-09-10 23:38 ` Dave Chinner
2019-09-12 13:46 ` Brian Foster
2019-09-17 4:31 ` Darrick J. Wong
2019-09-17 12:48 ` Brian Foster
2019-09-24 17:16 ` Darrick J. Wong
2019-09-26 13:19 ` Brian Foster
2019-09-04 5:26 ` [PATCH 0/7] xfs: log race fixes and cleanups Christoph Hellwig
2019-09-04 5:56 ` Christoph Hellwig
2019-09-04 22:57 ` Dave Chinner
[not found] ` <20190905065133.GA21840@infradead.org>
2019-09-05 7:10 ` Dave Chinner [this message]
2019-09-05 7:28 ` Dave Chinner
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