On 09/25/2017 08:57 AM, Stefan Hajnoczi wrote:
> Throttling group members are restarted on config change and by
> bdrv_drained_begin(). Pending timers should be cancelled before
> restarting the queue, otherwise requests see that tg->any_timer_armed[]
> is already set and do not schedule a timer.
Throttling group members are restarted on config change and by
bdrv_drained_begin(). Pending timers should be cancelled before
restarting the queue, otherwise requests see that tg->any_timer_armed[]
is already set and do not schedule a timer.
For example, a hang occurs at least since QEMU 2.10.0
