[libvirt] [PATCH 1/1] Change locking for udev monitor and callbacks

[Eric Blake]

On 04/06/2011 04:04 AM, Daniel P. Berrange wrote:
> On Tue, Apr 05, 2011 at 04:14:17PM -0500, Serge Hallyn wrote:
>> We're seeing bugs apparently resulting from thread unsafety of
>> libpciaccess, such as
>> https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/726099
>> To prevent those, as suggested by danpb on irc, move the
>> nodeDeviceLock(driverState) higher into the callers.  In
>> particular:

>> libvirt 0.8.8 with this patch on it seems to work fine for me.
>> Assuming it looks ok and I haven't done anything obviously dumb,
>> I'll ask the bug submitters to try this patch.

> 
> ACK, it looks good to me - serializing all access to the udev
> and libpciaccess APIs is a good conservative approach.

I've gone ahead and pushed this; if your bug submitters still have
further problems, we can address those in separate patches.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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