On 2020/10/30 21:21, Stefan Hajnoczi wrote:
> On Thu, Oct 29, 2020 at 05:42:42PM +0800, cenjiahui wrote:
>>
>> On 2020/10/27 0:53, Stefan Hajnoczi wrote:
>>> On Thu, Oct 22, 2020 at 09:02:54PM +0800, Jiahui Cen wrote:
>>>> A VM in the cloud environment m
On 2020/10/27 0:53, Stefan Hajnoczi wrote:
> On Thu, Oct 22, 2020 at 09:02:54PM +0800, Jiahui Cen wrote:
>> A VM in the cloud environment may use a virutal disk as the backend storage,
>> and there are usually filesystems on the virtual block device. When backend
>> storage is temporarily down, a
Hi Kevin,
Could you please spend some time reviewing and commenting on this patch series.
Thanks,
Jiahui Cen
On 2020/9/30 17:45, Jiahui Cen wrote:
> A VM in the cloud environment may use a virutal disk as the backend storage,
> and there are usually filesystems on the virtual block device. When
On 2020/9/28 18:57, Kevin Wolf wrote:
> Am 27.09.2020 um 15:04 hat Ying Fang geschrieben:
>> A VM in the cloud environment may use a virutal disk as the backend storage,
>> and there are usually filesystems on the virtual block device. When backend
>> storage is temporarily down, any I/O issued t
On 2019/10/24 17:52, Daniel P. Berrangé wrote:
> On Wed, Oct 23, 2019 at 11:32:14AM +0800, cenjiahui wrote:
>> From: Jiahui Cen
>>
>> Multifd assumes the migration thread IOChannel is always established before
>> the multifd IOChannels, but this assumption will b
From: Jiahui Cen
One multifd channel will shutdown all the other multifd's IOChannel when it
fails to receive an IOChannel. In this senario, if some multifds had not
received its IOChannel yet, it would try to shutdown its IOChannel which could
cause nullptr access at qio_channel_shutdown.
Here
From: Jiahui Cen
One multifd will lock all the other multifds' IOChannel mutex to inform them
to quit by setting p->quit or shutting down p->c. In this senario, if some
multifds had already been terminated and
multifd_load_cleanup/multifd_save_cleanup
had destroyed their mutex, it could cause de
From: Jiahui Cen
Multifd assumes the migration thread IOChannel is always established before
the multifd IOChannels, but this assumption will be broken in many situations
like network packet loss.
For example:
Step1: Source (migration thread IOChannel) --SYN--> Destination
Step2: Source (migra
