This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-devel] unlock_cpu_hotplug() Kernel Bug

To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] unlock_cpu_hotplug() Kernel Bug
From: Joshua West <jwest@xxxxxxxxxxxx>
Date: Fri, 28 Aug 2009 18:42:12 -0400
Delivery-date: Fri, 28 Aug 2009 15:45:28 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <4A9845C6.5000705@xxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <4A9845C6.5000705@xxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Thunderbird (X11/20090605)
Forgot to specify, the domU on which this kernel message appeared is
also x86_64.

Joshua West wrote:
> Hey all,
> I've just encountered the following on a rather busy virtual machine:
> BUG: warning at
> /usr/src/redhat/BUILD/xen-3.4.1/linux-2.6.18/kernel/cpu.c:53/unlock_cpu_hotplug()
> Call Trace:
>  [<ffffffff80247679>] unlock_cpu_hotplug+0x3c/0x6d
>  [<ffffffff802260aa>] sched_getaffinity+0x7e/0x95
>  [<ffffffff802260e7>] sys_sched_getaffinity+0x26/0x55
>  [<ffffffff80209302>] tracesys+0xab/0xb5
> This is on a Dell PowerEdge 1950 w/ Xen 3.4.1, Kernel
> (changeset 928 from linux-2.6.18-xen.hg), x86_64 Hypervisor and x86_64 dom0.
> Perhaps the patch outlined in http://lkml.org/lkml/2007/2/16/4 should be
> applied to the linux-2.6.18-xen.hg tree?
> Thanks.

Joshua West
Senior Systems Engineer
Brandeis University

Xen-devel mailing list

<Prev in Thread] Current Thread [Next in Thread>