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[Xen-users] xm save fails on OCFS2

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Subject: [Xen-users] xm save fails on OCFS2
From: "Nick Couchman" <Nick.Couchman@xxxxxxxxx>
Date: Sun, 28 Sep 2008 21:42:37 -0600
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I'm currently running a set of SLES10 SP2 servers that share common storage using OCFS2.  The VMs run fine, although sometimes it seems that the disk files don't close out correctly and I end up with loop devices that won't detach correctly.  The bigger issue, though, is that if I try to do an "xm save" on a domain and put the file onto the OCFS2 volume, the save fails after a couple of seconds and a few bytes of data.  If I save the file to the local filesystem (ext3 or rieser) it works fine, but a save to the OCFS2 volume doesn't seem to work.  Also, once the xm save fails, the domain gets into a weird state that an "xm restore" or "xm resume" or "xm unpause" doesn't seem to help.  Then I have to reboot the physical server because the qemu-dm process goes into a "defunct" state and won't close out and release the file.  Unfortunately I didn't get log files the last time this happened, but I'll try to capture that the next time I see the behavior.  In the meantime, if anyone else has any ideas, I'd appreciate the input.
Thanks - Nick

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