On 06/15/2009 11:33 PM, Anthony Liguori wrote:
The basic issue is that:
migrate_fd_put_ready(): bdrv_flush_all();
Does:
block.c:
foreach block driver:
drv->flush(bs);
Which in the case of raw, is just fsync(s->fd).
Any submitted request is not queued or flushed which will lead to the
request being dropped after the live migration.
Is anyone working on fixing this?
Not to my knowledge
Does anyone have a clever idea how to fix this without just waiting
for all IO requests to complete?
What's wrong with waiting for requests to complete? It should take a
few tens of milliseconds.
We could start throttling requests late in the live stage, but I don't
really see the point.
Isn't virtio migration currently broken due to the qdev changes?
--
error compiling committee.c: too many arguments to function
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