[libvirt] [PATCH] qemu: Migrate at unlimited speed by default

[Daniel P. Berrange]

On Fri, Aug 03, 2012 at 08:16:06PM +0200, Jiri Denemark wrote:
> Previously, qemu did not respond to monitor commands during migration if
> the limit was too high. This prevented us from raising the limit
> earlier. The qemu issue seems to be fixed (according to my testing) and
> we may remove the 32Mb/s limit.

IIRC, the problem wasn't with QEMU, but rather that libvirt was passing
QEMU a file descriptor pointing to a plain file, on which O_NONBLOCK
does not work (thanks POSIX). We fixed libvirt to pass a pipe instead
to address that.

Daniel
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