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From: Wilmer van der Gaast <wilmer@gaast.net>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Pavel Machek <pavel@ucw.cz>,
	Rafael Wysocki <rafael.j.wysocki@intel.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Machine crashes right *after* ~successful resume
Date: Thu, 30 Oct 2014 21:54:46 +0000	[thread overview]
Message-ID: <5452B3A6.7060100@gaast.net> (raw)
In-Reply-To: <CAE9FiQVZV8xk0haCPo=nikBCNQfawPiw20kdEUGfJ_NdtSi5JQ@mail.gmail.com>

Hello,

On 30-10-14 16:57, Yinghai Lu wrote:
>> Sadly, with that patch (applied against a vanilla 3.17 tree like all the> others) the second resume fails already. :-(
>
> oh, no. Really want to know which bit causes the problem.
>
Good question. And I think you will find my new finding even more 
confusing: With your two patches from this e-mail, I could 
suspend+resume 3× with no problems.. With just your two debugging 
patches applied.

Lovely heisenbug here. I'll add that for every test so far I've removed 
the kernel source tree, re-untarred it and applied the patches from your 
e-mails on that, so the tests should be consistent. As is the bug 
normally, before we started testing patches the crashes were already 
always *very* reliably happening exactly after the third resume.

Just to be sure this morning was not a fluke, I've retested your patch 
from this morning, and still a crash on the second resume.

> Please check debug patch...that will print out pci conf space before
> ...and after...
>
http://gaast.net/~wilmer/.lkml/good3.17-patched-megadebug.txt


Wilmer v/d Gaast.

-- 
+-------- .''`.     - -- ---+  +        - -- --- ---- ----- ------+
| wilmer : :'  :  gaast.net |  | OSS Programmer   www.bitlbee.org |
| lintux `. `~'  debian.org |  | Full-time geek  wilmer.gaast.net |
+--- -- -  ` ---------------+  +------ ----- ---- --- -- -        +


  reply	other threads:[~2014-10-30 21:55 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-07 23:20 Machine crashes right *after* ~successful resume Wilmer van der Gaast
2014-10-12 14:30 ` Pavel Machek
2014-10-12 15:49   ` Wilmer van der Gaast
2014-10-12 20:40     ` Pavel Machek
2014-10-12 23:47       ` Wilmer van der Gaast
2014-10-13 15:06       ` Rafael J. Wysocki
2014-10-15 11:16         ` Wilmer van der Gaast
2014-10-15 13:58           ` Bjorn Helgaas
2014-10-15 18:39             ` Yinghai Lu
2014-10-15 23:34               ` Wilmer van der Gaast
2014-10-16  4:32                 ` Yinghai Lu
2014-10-16  9:36                   ` Wilmer van der Gaast
2014-10-16 16:36                     ` Yinghai Lu
2014-10-16 21:08                       ` Wilmer van der Gaast
2014-10-18 21:28                         ` Yinghai Lu
2014-10-18 23:57                           ` Wilmer van der Gaast
2014-10-19  4:29                             ` Yinghai Lu
2014-10-19 10:48                               ` Wilmer van der Gaast
2014-10-21 21:40                               ` Wilmer van der Gaast
2014-10-21 23:15                                 ` Yinghai Lu
2014-10-22 12:53                                   ` Wilmer van der Gaast
2014-10-26 21:53                                     ` Yinghai Lu
2014-10-27 10:50                                       ` Wilmer van der Gaast
2014-10-27 18:23                                         ` Yinghai Lu
2014-10-27 22:22                                           ` Wilmer van der Gaast
2014-10-27 23:41                                             ` Yinghai Lu
2014-10-28  0:03                                               ` Wilmer van der Gaast
2014-10-28  1:12                                                 ` Yinghai Lu
2014-10-28  4:03                                                   ` Yinghai Lu
2014-10-28 10:23                                                     ` Wilmer van der Gaast
2014-10-28 23:34                                                   ` Wilmer van der Gaast
2014-10-29  5:17                                                     ` Yinghai Lu
2014-10-29  9:37                                                       ` Wilmer van der Gaast
2014-10-30  0:53                                                         ` Yinghai Lu
2014-10-30 10:36                                                           ` Wilmer van der Gaast
2014-10-30 16:57                                                             ` Yinghai Lu
2014-10-30 21:54                                                               ` Wilmer van der Gaast [this message]
2014-10-30 23:02                                                                 ` Yinghai Lu
2014-10-30 23:24                                                                   ` Wilmer van der Gaast
2014-10-31  0:43                                                                     ` Yinghai Lu
2014-10-31  2:13                                                                       ` Yinghai Lu
2014-10-31  9:39                                                                         ` Wilmer van der Gaast
2014-10-31 16:11                                                                           ` Yinghai Lu
2014-10-31 21:13                                                                             ` Wilmer van der Gaast
2014-10-31 21:22                                                                               ` Yinghai Lu
2014-10-31 23:18                                                                                 ` Yinghai Lu
2014-11-01  0:00                                                                                   ` Wilmer van der Gaast
2014-11-01  2:10                                                                                     ` Yinghai Lu
2014-11-02 23:16                                                                                       ` Wilmer van der Gaast
2014-10-27 21:21                                         ` Pavel Machek
2014-10-19  8:07                             ` Pavel Machek

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