Re: [Qemu-devel] [Qemu-block] [PATCH 0/2] block: fix nbd-server-stop crash after blockdev-snapshot-sync

[Eric Blake <eblake@redhat.com>]

On 03/08/2018 11:37 AM, Stefan Hajnoczi wrote:
> On Wed, Mar 07, 2018 at 05:27:45PM -0600, Eric Blake wrote:
>> On 03/06/2018 02:48 PM, Stefan Hajnoczi wrote:
>>> The blockdev-snapshot-sync command uses bdrv_append() to update all parents to
>>> point at the external snapshot node.  This breaks BlockBackend's
>>> blk_add/remove_aio_context_notifier(), which doesn't expect a BDS change.
>>>

>> Whose tree should this series go through?  MAINTAINERS didn't flag it as
>> directly touching any files that normally affect my NBD queue, but given
>> that the iotest that reproduces the problem uses NBD, I'm fine if you want
>> it to go through me.
> 
> Good question.  Max and Kevin maintain block/block-backend.c so one of
> them should be happy with this series before it gets merged.
> 
> When a patch affects multiple trees, the last sub-maintainer to review
> it can do the merge.
> 
> So if they have already posted their R-b when you are finished, then
> feel free to merge it!  And vice versa.

Max has reviewed, so this is now queued on my NBD tree, pull request to 
come shortly.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org