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From: Dave Jones <davej@redhat.com>
To: Hugh Dickins <hughd@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org
Subject: Re: Debugging Thinkpad T430s occasional suspend failure.
Date: Wed, 13 Feb 2013 14:34:11 -0500	[thread overview]
Message-ID: <20130213193411.GA15928@redhat.com> (raw)
In-Reply-To: <alpine.LNX.2.00.1302122121170.15020@eggly.anvils>

On Tue, Feb 12, 2013 at 09:37:27PM -0800, Hugh Dickins wrote:

 > I think for the moment I'm going to hope that under the surface our
 > problems are related, and when your bisection points a finger, look
 > around to see if it suggests anything for my case.  Lazy, but...

I have the worst luck with bisects.  Halfway through I started seeing
a *different* suspend failure, which led me down the wrong path
ultimately leading to 59a93c27c which was a red herring even though
it even talks about suspend (I had my hopes high when testing that one).

Started over, and ended up in a merge commit containing just a single
patch to slab (210ed9defff). Reverting that on top of 3.7-rc8 doesn't
fix the problem.  Backing up one level of bisect, the other alternative
path was 5b3900cd40, which also didn't help when reverting.

My test was a loop of 100 suspend/resume cycles before calling something
'good'. The 'bad' cases all failed within 10 cycles (usually 2-3).

	Dave


  reply	other threads:[~2013-02-13 19:34 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-12 19:39 Dave Jones
2013-02-12 20:13 ` Linus Torvalds
2013-02-13  0:26 ` Hugh Dickins
2013-02-13  0:40   ` Dave Jones
2013-02-13  0:56     ` Hugh Dickins
2013-02-13  4:16       ` Dave Jones
2013-02-13  5:37         ` Hugh Dickins
2013-02-13 19:34           ` Dave Jones [this message]
2013-02-13 19:56             ` Linus Torvalds
2013-02-13 20:53               ` Dave Jones
2013-02-16 20:54                 ` Paul E. McKenney
2013-02-15  1:15               ` Dave Jones
2013-02-15  2:09                 ` Linus Torvalds
2013-02-15 15:50                   ` Ingo Molnar
2013-02-15 22:33                     ` Dave Jones
2013-02-15 17:44                   ` Paul E. McKenney
2013-02-15 18:34                     ` Linus Torvalds
2013-02-15 18:35                       ` Linus Torvalds
2013-02-15 18:50                         ` Linus Torvalds
2013-02-16 19:25                           ` Paul E. McKenney
2013-02-16 19:46                             ` Linus Torvalds
2013-02-16 21:07                               ` Paul E. McKenney
2013-02-16 21:53                               ` H. Peter Anvin
2013-02-17 22:49                               ` H. Peter Anvin
2013-02-18  8:41                                 ` Ingo Molnar
2013-02-19  8:50                                   ` Paul E. McKenney
2013-02-19  8:56                                     ` Ingo Molnar
2013-02-17 15:11                       ` Frederic Weisbecker
2013-02-17 17:32                         ` Linus Torvalds
2013-02-17 18:17                           ` Frederic Weisbecker
2013-02-17 20:58                           ` Frederic Weisbecker
2013-02-17 21:02                             ` Frederic Weisbecker
2013-02-18 15:53                               ` Frederic Weisbecker
2013-02-18 18:12                                 ` Linus Torvalds
2013-02-19 10:08                                   ` Frederic Weisbecker
2013-02-18 19:58                                 ` Thomas Gleixner
2013-02-19 10:38                                   ` Frederic Weisbecker
2013-02-19 10:44                                     ` Thomas Gleixner
2013-02-15  2:09                 ` Hugh Dickins
2013-02-15  2:15                   ` Linus Torvalds
2013-02-16 21:45                     ` Hugh Dickins
2013-02-16 23:02                       ` Linus Torvalds
2013-02-17  0:01                         ` Hugh Dickins
2013-02-17  2:21                           ` Hugh Dickins
2013-02-17 13:38                             ` Daniel Vetter
2013-02-17 14:54                               ` Daniel Vetter
2013-02-17 16:31                               ` Hugh Dickins
2013-02-17 17:28                                 ` Daniel Vetter
2013-02-13  2:17   ` Dave Jones

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