[Qemu-devel] git master endless migration

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[Qemu-devel] git master endless migration

From:	Stefan Priebe - Profihost AG
Subject:	[Qemu-devel] git master endless migration
Date:	Fri, 08 Feb 2013 11:29:52 +0100
User-agent:	Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130106 Thunderbird/17.0.2

Hello list,

while testing current git master
(ecd8d4715ea33aa2c146a5047bacb031e86af599) i've seen a VM endless
looping - the monitor socket also did not answer anymore while
migrating. The VM was under very low load but the migration never
finishs and the VM was not accessable anymore. Is this a known issue?

An strace looked like this:

[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 24717] write(5, "\1\0\0\0\0\0\0\0", 8) = 8

Stefan

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[Qemu-devel] git master endless migration, Stefan Priebe - Profihost AG <=
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