Your instance directory is shared between compute nodes? Similar issue was fixed for folsom-rc1 https://review.openstack.org/#/c/12024/ https://bugs.launchpad.net/nova/+bug/1014227 2012/9/24 Razique Mahroua <razique.mahroua at gmail.com> > Here is what I found > http://comments.gmane.org/gmane.comp.emulators.qemu/153254 > http://osdir.com/ml/qemu-devel/2012-05/msg04234.html > > What do you think ? > > *Nuage & Co - Razique Mahroua** * > razique.mahroua at gmail.com > > > Le 24 sept. 2012 à 10:43, Wangpan <hzwangpan at corp.netease.com> a écrit : > > qemu-img check -f qcow2 test.qcow2 > No errors were found on the image. > > 2012-09-24 > ------------------------------ > Wangpan > ------------------------------ > *发件人：*Razique Mahroua > *发送时间：*2012-09-24 16:30 > *主题：*Re: Re: [Openstack] [Nova] Got 'qemu-img: error while writing sector > 634880: Input/output error' in _create_image > *收件人：*"Wangpan"<hzwangpan at corp.netease.com> > *抄送：*"openstack"<openstack at lists.launchpad.net> > > hi, > what about a > qemu-img check -f qcow2 test.qcow2 > > > *Nuage & Co - Razique Mahroua** * > razique.mahroua at gmail.com > > <NUAGECO-LOGO-Fblan_petit(1).jpg> > > Le 24 sept. 2012 à 10:19, "Wangpan"<hzwangpan at corp.netease.com> a écrit : > > Thanks for your attention! > > - disk full ----# I believe there is enough space, because I have tried > to boot serveral instances after this error with the same image, they are > all booted successfully. > - permission issues ----# Not this reason, too. explain as above. > > I still believe this is a race problem, if we convert to image from qcow2 > to raw at a short interval, one of the convertion may fail, > I have verified this by running two same commands continuously such as: > qemu-img convert -f qcow2 -O raw test.qcow2 test.part & > and one of them give me the same error: > qemu-img: error while writing sector 1052672: Input/output error > > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack at lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20120924/09ad1902/attachment.html>