From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NHZUV-0002M2-6G for qemu-devel@nongnu.org; Mon, 07 Dec 2009 04:02:47 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NHZUQ-0002K5-DU for qemu-devel@nongnu.org; Mon, 07 Dec 2009 04:02:46 -0500 Received: from [199.232.76.173] (port=56230 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NHZUQ-0002K2-79 for qemu-devel@nongnu.org; Mon, 07 Dec 2009 04:02:42 -0500 Received: from mail-pw0-f43.google.com ([209.85.160.43]:37485) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1NHZUP-0006uC-Hp for qemu-devel@nongnu.org; Mon, 07 Dec 2009 04:02:41 -0500 Received: by pwi12 with SMTP id 12so3643120pwi.2 for ; Mon, 07 Dec 2009 01:02:39 -0800 (PST) MIME-Version: 1.0 In-Reply-To: References: From: Purna Chandar Date: Mon, 7 Dec 2009 14:32:19 +0530 Message-ID: Content-Type: multipart/alternative; boundary=000e0cd11bd4298070047a1fb86e Subject: [Qemu-devel] Re: guest OS crash during shutdown/reboot List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org --000e0cd11bd4298070047a1fb86e Content-Type: text/plain; charset=ISO-8859-1 The culprit seems to be a soft lockup during shutdown because of the smp code. Adding nosmp command line option to the guest kernel does not cause this problem. 2009/10/30 Purna Chandar > Can somebody out there please help me with this issue. > > Thanks, > PurnaChandar M > > 2009/10/26 Purna Chandar > > Hi, >> I have compiled qemu 0.11.0 for x86 64 bit. I run Fedora Core 10 64 bit as >> my guest OS. >> Sometimes, when I shutdown the guest OS gracefully (using halt command), I >> see a kernel crash with a stack trace on guest OS window at * >> native_machine_shutdown()*. The RIP points to *native_smp_send_stop()*. >> This doesn't happen on every shutdown/reboot though. >> >> I did see this issue in older versions of qemu too(0.10.0 and 0.10.6). >> This could be a minor issue for most of you but I need to fix this because I >> run some automated scripts on the guest OS which reboots it. >> >> Does anybody has a fix or any other idea to get around this issue? >> >> Any bit of help on this would be really helpful. >> >> Thanks, >> PurnaChandar M >> > > --000e0cd11bd4298070047a1fb86e Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable The culprit seems to be a soft lockup during shutdown because of the smp co= de. Adding nosmp command line option to the guest kernel does not cause thi= s problem.

2009/10/30 Purna Chandar <p= urnachandar.midi@oneconvergence.com>
Can somebody out = there please help me with this issue.

Thanks,
PurnaChandar M

2009/10/26 Purna Chandar <<= a href=3D"mailto:purnachandar.midi@oneconvergence.com" target=3D"_blank">pu= rnachandar.midi@oneconvergence.com>

Hi,
I have com= piled qemu 0.11.0 for x86 64 bit. I run Fedora Core 10 64 bit as my guest O= S.
Sometimes, when I shutdown the guest OS gracefully (using halt command), I = see a kernel crash with a stack trace on guest OS window at native_machi= ne_shutdown(). The RIP points to native_smp_send_stop(). This do= esn't happen on every shutdown/reboot though.

I did see this issue in older versions of qemu too(0.10.0 and 0.10.6). = This could be a minor issue for most of you but I need to fix this because = I run some automated scripts on the guest OS which reboots it.

Does anybody has a fix or any other idea to get around this issue?

Any bit of help on this would be really helpful.

Thanks,
Purn= aChandar M


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