On 1/27/21 8:49 PM, Baolin Wang wrote:
>
>
> 在 2021/1/28 11:41, Jens Axboe 写道:
>> On 1/27/21 8:22 PM, Baolin Wang wrote:
>>> On !PREEMPT kernel, we can get below softlockup when doing stress
>>> testing with creating and destroying block cgroup repeatly. The
>>> reason is it may take a long time
On 1/27/21 8:22 PM, Baolin Wang wrote:
> On !PREEMPT kernel, we can get below softlockup when doing stress
> testing with creating and destroying block cgroup repeatly. The
> reason is it may take a long time to acquire the queue's lock in
> the loop of blkcg_destroy_blkgs(), or the system can
在 2021/1/28 11:41, Jens Axboe 写道:
On 1/27/21 8:22 PM, Baolin Wang wrote:
On !PREEMPT kernel, we can get below softlockup when doing stress
testing with creating and destroying block cgroup repeatly. The
reason is it may take a long time to acquire the queue's lock in
the loop of
On Thu, Jan 28, 2021 at 11:22:00AM +0800, Baolin Wang wrote:
> On !PREEMPT kernel, we can get below softlockup when doing stress
> testing with creating and destroying block cgroup repeatly. The
> reason is it may take a long time to acquire the queue's lock in
> the loop of blkcg_destroy_blkgs(),
On !PREEMPT kernel, we can get below softlockup when doing stress
testing with creating and destroying block cgroup repeatly. The
reason is it may take a long time to acquire the queue's lock in
the loop of blkcg_destroy_blkgs(), or the system can accumulate a
huge number of blkgs in pathological
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