On Thu, Nov 27, 2014 at 02:50:59PM +0530, Amit Shah wrote: > On (Tue) 25 Nov 2014 [09:32:58], z08687 wrote: > > Public bug reported: > > > > Hi, > > I found a live migration problem and have found out the reason, but I can't > > fix it up myself. I really need help. > > When live migration vm and it's block device in save time, it will occur > > probabilistic . > > > > Step: > > 1. start a windows vm,and run burnInTest(it will write dirty data to block > > device in migration) > > 2. migrate vm with it's block device. > > 3. a few minutes later, dest vm was killed and migration will be failed > > (probabilistic ) > > That's a nice test case, as well as good analysis.
This is a known issue: https://lists.gnu.org/archive/html/qemu-devel/2014-09/msg02959.html Please try this patch: commit 7ea2d269cb84ca7a2f4b7c3735634176f7c1dc35 Author: Alexey Kardashevskiy <a...@ozlabs.ru> Date: Thu Oct 9 13:50:46 2014 +1100 block/migration: Disable cache invalidate for incoming migration Stefan
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