From: Pavel Machek <pavel@ucw.cz>
To: Bryce Harrington <bryce@osdl.org>
Cc: Andrew Morton <akpm@osdl.org>,
vatsa@in.ibm.com, torvalds@osdl.org,
linux-kernel@vger.kernel.org, shaohua.li@intel.com,
hotplug_sig@osdl.org, lhcs-devel@lists.sourceforge.net
Subject: Re: Status on CPU hotplug issues
Date: Sat, 7 Oct 2006 21:57:49 +0000 [thread overview]
Message-ID: <20061007215749.GC4277@ucw.cz> (raw)
In-Reply-To: <20061006231012.GH22139@osdl.org>
Hi!
> 1. Oops offlining cpu twice on AMD64 (but not on EM64t)
> with the 2.6.18-git22 kernel
>
> Reported to hotplug lists 10/05:
> http://lists.osdl.org/pipermail/hotplug_sig/2006-October/000680.html
>
> To recreate: offline, online, and then offline a CPU, then oopses
> http://crucible.osdl.org/runs/2397/sysinfo/amd01.console
> http://crucible.osdl.org/runs/2397/sysinfo/amd01.2/proc/config
>
> Here's a snippet of the oops:
>
> # echo 0 > /sys/devices/system/cpu/cpu1/online
>
> Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:
> [<ffffffff80255287>] __drain_pages+0x29/0x5f
> PGD 7e56d067 PUD 7ee80067 PMD 0
> Oops: 0000 [1] PREEMPT SMP
> CPU 0
> Modules linked in:
> Pid: 7203, comm: bash Tainted: G M 2.6.18-git22 #1
~~~~~
kernel is unhappy here. Forced module unload?
--
Thanks for all the (sleeping) penguins.
next prev parent reply other threads:[~2006-10-07 22:11 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-16 17:44 [PATCH] Check for online cpus before bringing them up Srivatsa Vaddagiri
2006-03-17 1:08 ` Andrew Morton
2006-03-17 1:16 ` Shaohua Li
2006-03-17 8:46 ` Srivatsa Vaddagiri
2006-03-17 9:04 ` Andrew Morton
2006-03-17 14:13 ` Srivatsa Vaddagiri
2006-03-18 14:09 ` Ashok Raj
2006-03-21 1:08 ` Shaohua Li
2006-03-21 1:25 ` Ashok Raj
2006-03-21 1:36 ` Shaohua Li
2006-10-06 23:10 ` Status on CPU hotplug issues Bryce Harrington
2006-10-06 23:29 ` Andrew Morton
2006-10-07 0:00 ` Bryce Harrington
2006-10-07 10:35 ` Pavel Machek
2006-10-07 20:42 ` Bryce Harrington
2006-10-08 18:29 ` Heiko Carstens
2006-10-08 19:14 ` Pavel Machek
2006-10-11 1:08 ` [BUG] 2.6.19-rc1-mm1: fs/file.c138 on ia64 Bryce Harrington
2006-10-11 1:15 ` Andrew Morton
2006-10-11 5:38 ` Bryce Harrington
2006-10-07 10:24 ` Status on CPU hotplug issues Pavel Machek
2006-10-07 20:25 ` Bryce Harrington
2006-10-08 19:13 ` Pavel Machek
2006-10-09 7:42 ` Bryce Harrington
2006-10-07 21:57 ` Pavel Machek [this message]
2006-10-09 21:40 ` Randy Dunlap
2006-10-23 22:26 ` Bryce Harrington
2006-11-08 5:35 ` Randy Dunlap
2006-11-08 5:52 ` Bryce Harrington
2006-03-17 12:21 ` [PATCH] Check for online cpus before bringing them up Ashok Raj
2006-03-17 13:59 ` Srivatsa Vaddagiri
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