linux-kernel - Re: 2.6.30-git(16 and 17) system hangs after resume from suspend to disk, mce related?

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Date:	Mon, 22 Jun 2009 08:20:05 +0200
From:	Maciej Rutecki <maciej.rutecki@...il.com>
To:	Andi Kleen <ak@...ux.intel.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>, seto.hidetoshi@...fujitsu.com,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: 2.6.30-git(16 and 17) system hangs after resume from suspend to 
	disk, mce related?

2009/6/21 Andi Kleen <ak@...ux.intel.com>:

> Also a "a few minutes" suggest something might be going wrong
> with the poll handler.  Does the problem still happen
> with you use CONFIG_X86_NEW_MCE again, but before
> resume do
>
> echo 0 > /sys/device/system/machinecheck/machinecheck0/check_interval


Seems be stable.

>
> On the other hand you should get a crash very fast with
>
> echo 1 > /sys/device/system/machinecheck/machinecheck0/check_interval

System hangs during suspend to disk (not resume). It stops on this
message (no_console_suspend option enabled):
http://unixy.pl/maciek/download/kernel/2.6.30-git17/pc/img_0003.jpg

after this should be:
[ 2482.751571] CPU0 attaching NULL sched-domain.
[ 2482.752016] Switched to high resolution mode on CPU 1
[ 2482.754024] CPU0 attaching sched-domain:
[ 2482.754028]  domain 0: span 0-1 level MC
[ 2482.754032]   groups: 0 1
[ 2482.754039] CPU1 attaching sched-domain:
[ 2482.754042]  domain 0: span 0-1 level MC
[ 2482.754045]   groups: 1 0
[ 2482.755139] CPU1 is up

See:
http://unixy.pl/maciek/download/kernel/2.6.30-git17/pc/dmesg-2.6.30-git17-after-resume.txt
(dmesg after resume, but before hangs)

-- 
Maciej Rutecki
http://www.maciek.unixy.pl
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