On Mon, 24 Sep 2012, Wangpan wrote: > 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
I would expect the above. Or at least it surprises me very little. I doubt that qemu-img expects some other process to write to its output file while it is. Surely nothing in openstack is expecting to be able to have 2 instances of 'qemu-img convert' write to the same file concurrently, right? _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
