Zhai, Edwin
2007-Aug-13 14:55 UTC
[Xen-devel] [PATCH] [HVM] fix a HVM save/restore race condition after r15639
Tim, The qemu save command sending is moved from saveInputHandler to refreshShutdown(too late) in r15639, so higher possibility that control panel read a not ready qemu state file especially for live migration. If reading happened before qemu create this file, a python missing file exception would occur. If before qemu put the record length in the file header as the last step, dest machine would try to restore a zero length qemu file to lead state lost in each device. Attached patch can fix it, pls. have a look. Thanks, -- best rgds, edwin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel