10:51 p.m.
On 05/07/2012 11:12 AM, david_zhu wrote:
Hi,
When I destroy a VM, sometimes virsh will report failed.
So I tried the following shell script:
-bash-4.1# for ((i=0; i<1000; i++)); do virsh start david_mac; virsh
destroy david_mac; if [ $? != 0 ] ; then echo $i; break; fi; done
It always works
well for me based on the following version:
# virsh version
Compiled against library: libvir 0.9.10
Using library: libvir 0.9.10
Using API: QEMU 0.9.10
Running hypervisor: QEMU 0.12.1
Domain david_mac started
Domain david_mac destroyed
......
Domain david_mac started
error: Failed to destroy domain david_mac
error: Requested operation is not valid: domain is not running
35
It always fail, and the VM state become "shut off":
-bash-4.1# virsh list --all
Id Name State
----------------------------------
- david_mac shut off
My libvirt/KVM version is:
-bash-4.1# virsh version
Compiled against library: libvir 0.9.8
Using library: libvir 0.9.8
Using API: QEMU 0.9.8
Running hypervisor: QEMU 0.14.1
Is this a libvirt bug, or KVM problem ?
I'm not sure it's a bug of libvirt
0.9.8, maybe, you may upgrade your
libvirt then check it again. thanks.
--
*Best Regards *
**************************************************************************
*
*David Zhu * *朱慧 * Firmware Engineer
Enterprise Storage / R&D Dept.
Universal Scientific Industrial (Shanghai) Co., Ltd
421 Lishizhen Road, Pudong New Area, Shanghai, P.R. China 201203 上海
市浦东新区张江高科技园区李时珍路421号 邮编: 201203
Fax: +86-21-58967931 Tel: +86-21-58966996 *ext. 81468 *
http://www.usi.com.tw <http://www.usi.com.tw/> *E-mail:
_david_zhu(a)usish.com <mailto:cotton_sun@usish.com> _ *
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1:05 p.m.
On 05/06/2012 09:12 PM, david_zhu wrote:
Hi,
When I destroy a VM, sometimes virsh will report failed.
So I tried the following shell script:
-bash-4.1# for ((i=0; i<1000; i++)); do virsh start david_mac; virsh destroy
david_mac; if [ $? != 0 ] ; then echo $i; break; fi; done
Domain david_mac started
Domain david_mac destroyed
......
Domain david_mac started
error: Failed to destroy domain david_mac
error: Requested operation is not valid: domain is not running
Bear in mind that there is an inherent race: a guest could itself
request a shutdown prior to the point that you issue the destroy
command, in which case the destroy will fail because the guest is
already shutdown. Since the end goal is the same (the guest is shut off
either way), it is a good idea to write your scripts to be robust to
this particular race.
That said, if your guest isn't specifically requesting a shutdown, it
seems odd that you are encountering a race, so there may be something
else at play here. Does the log of the guest give any particular hints?
--
Eric Blake eblake(a)redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
10:03 p.m.
On 05/07/2012 07:48 PM, david_zhu wrote:
> -bash-4.1# virsh version
> Compiled against library: libvir 0.9.8
> That said, if your guest isn't specifically requesting a
shutdown, it
> seems odd that you are encountering a race, so there may be something
> else at play here. Does the log of the guest give any particular hints?
>
but the libvirtd.log always prints:
2012-05-07 02:39:09.535+0000: 4118: error : qemuMonitorIO:560 : internal error
End of file from monitor
There have indeed been several fixes since 0.9.8 related to races with
remote communications (including between libvirt.so and libvirtd); it
could be that one of these fixes is relevant to your issue. Can you
upgrade to 0.9.11 and try again?
Meanwhile, it would be nice if we could get this added to the
troubleshooting wiki: http://wiki.libvirt.org/page/Troubleshooting,
along with anything we determine in getting it resolved.
--
Eric Blake eblake(a)redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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4 comments
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participants (3)
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Eric Blake