Am 16.09.2012 12:13, schrieb Peter Lieven: > Hi, > > when trying to block migrate a VM from one node to another, the source > VM crashed with the following assertion: > block.c:3829: bdrv_set_in_use: Assertion `bs->in_use != in_use' failed. > > Is this sth already addresses/known? Not that I'm aware of, at least. Block migration doesn't seem to check whether the device is already in use, maybe this is the problem. Not sure why it would be in use, though, and in my quick test it didn't crash. So we need some more information: What's you command line, did you do anything specific in the monitor with block devices, what does the stacktrace look like, etc.? Kevin -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html