From: Chris J Arges <chris.j.arges@canonical.com>
To: xfs@oss.sgi.com
Subject: Re: Still seeing hangs in xlog_grant_log_space
Date: Tue, 5 Jun 2012 08:21:34 -0700 (PDT) [thread overview]
Message-ID: <33964752.post@talk.nabble.com> (raw)
In-Reply-To: <CAH4wwdGWHSZoveLJMxu5pjr22NEEeW7oG8TS+snoM8RY=ZeRmg@mail.gmail.com>
Peter Watkins-3 wrote:
>
> Does your kernel have the effect of
>
> 0bf6a5bd4b55b466964ead6fa566d8f346a828ee xfs: convert the xfsaild
> thread to a workqueue
>
This patch is present in the Ubuntu Precise 3.2 kernel, and I have been able
to reproduce the failure with this patch applied.
Peter Watkins-3 wrote:
>
> c7eead1e118fb7e34ee8f5063c3c090c054c3820 xfs: revert to using a
> kthread for AIL pushing
>
I see this patch is 0030807c66f058230bcb20d2573bcaf28852e804 upstream, and
this patch is also present in the 3.2 Precise kernel that was tested and
exhibited the failure.
Peter Watkins-3 wrote:
>
> In particular, is this code in xfs_trans_ail_push:
>
> smp_wmb();
> xfs_trans_ail_copy_lsn(ailp, &ailp->xa_target, &threshold_lsn);
> smp_wmb();
>
In fs/xfs/xfs_trans_ail.c:xfs_ail_push():
/*
* Ensure that the new target is noticed in push code before it
clears
* the XFS_AIL_PUSHING_BIT.
*/
smp_wmb();
xfs_trans_ail_copy_lsn(ailp, &ailp->xa_target, &threshold_lsn);
smp_wmb();
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prev parent reply other threads:[~2012-06-05 15:21 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-23 12:09 Still seeing hangs in xlog_grant_log_space Juerg Haefliger
2012-04-23 14:38 ` Dave Chinner
2012-04-23 15:33 ` Juerg Haefliger
2012-04-23 23:58 ` Dave Chinner
2012-04-24 8:55 ` Juerg Haefliger
2012-04-24 12:07 ` Dave Chinner
2012-04-24 18:26 ` Juerg Haefliger
2012-04-25 22:38 ` Dave Chinner
2012-04-26 12:37 ` Juerg Haefliger
2012-04-26 22:44 ` Dave Chinner
2012-04-26 23:00 ` Juerg Haefliger
2012-04-26 23:07 ` Dave Chinner
2012-04-27 9:04 ` Juerg Haefliger
2012-04-27 11:09 ` Dave Chinner
2012-04-27 13:07 ` Juerg Haefliger
2012-05-05 7:44 ` Juerg Haefliger
2012-05-07 17:19 ` Ben Myers
2012-05-09 7:54 ` Juerg Haefliger
2012-05-10 16:11 ` Chris J Arges
2012-05-10 21:53 ` Mark Tinguely
2012-05-16 18:42 ` Ben Myers
2012-05-16 19:03 ` Chris J Arges
2012-05-16 21:29 ` Mark Tinguely
2012-05-18 10:10 ` Dave Chinner
2012-05-18 14:42 ` Mark Tinguely
2012-05-22 22:59 ` Dave Chinner
2012-06-06 15:00 ` Chris J Arges
2012-06-07 0:49 ` Dave Chinner
2012-05-17 20:55 ` Chris J Arges
2012-05-18 16:53 ` Chris J Arges
2012-05-18 17:19 ` Ben Myers
2012-05-19 7:28 ` Juerg Haefliger
2012-05-21 17:11 ` Ben Myers
2012-05-24 5:45 ` Juerg Haefliger
2012-05-24 14:23 ` Ben Myers
2012-05-07 22:59 ` Dave Chinner
2012-05-09 7:35 ` Dave Chinner
2012-05-09 21:07 ` Mark Tinguely
2012-05-10 2:10 ` Mark Tinguely
2012-05-18 9:37 ` Dave Chinner
2012-05-18 9:31 ` Dave Chinner
2012-05-24 20:18 ` Peter Watkins
2012-05-25 6:28 ` Juerg Haefliger
2012-05-25 17:03 ` Peter Watkins
2012-06-05 23:54 ` Dave Chinner
2012-06-06 13:40 ` Brian Foster
2012-06-06 17:41 ` Mark Tinguely
2012-06-11 20:42 ` Chris J Arges
2012-06-11 23:53 ` Dave Chinner
2012-06-12 13:28 ` Chris J Arges
2012-06-06 22:03 ` Mark Tinguely
2012-06-06 23:04 ` Brian Foster
2012-06-07 1:35 ` Dave Chinner
2012-06-07 14:16 ` Brian Foster
2012-06-08 0:28 ` Dave Chinner
2012-06-08 17:09 ` Ben Myers
2012-06-11 20:59 ` Mark Tinguely
2012-06-05 15:21 ` Chris J Arges [this message]
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