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From: Jens Axboe <[email protected]>
To: Ammar Faizi <[email protected]>
Cc: Pavel Begunkov <[email protected]>,
	io-uring Mailing List <[email protected]>,
	Bedirhan KURT <[email protected]>
Subject: Re: [PATCH v2 liburing] test: Add kworker-hang test
Date: Fri, 5 Nov 2021 17:41:55 -0600	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAGzmLMVvhkanBZYq-4PU0NeiPH8K8jhRBH+koqf-1gGrzXGjxg@mail.gmail.com>

On 11/5/21 5:35 PM, Ammar Faizi wrote:
> On Wed, Oct 20, 2021 at 7:52 PM Ammar Faizi
> <[email protected]> wrote:
>>
>> Add kworker-hang test to reproduce this:
>>
>>   [28335.037622] INFO: task kworker/u8:3:77596 blocked for more than 10 seconds.
>>   [28335.037629]       Tainted: G        W  OE     5.15.0-rc4-for-5.16-io-uring-00060-g4922ab639eb6 #4
>>   [28335.037637] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>>   [28335.037642] task:kworker/u8:3    state:D stack:    0 pid:77596 ppid:     2 flags:0x00004000
>>   [28335.037650] Workqueue: events_unbound io_ring_exit_work
> 
> Hi Jens, will you take this patch? If yes, I will spin the v3 because
> this one no longer applies since the test/Makefile changed.

Yes I will, sorry it dropped off my radar. Please just respin it.

> This kworker hang bug still lives in Linux 5.15 stable anyway.

We just need to backport the fix, then it should be fixed there too :-)

-- 
Jens Axboe


  reply	other threads:[~2021-11-05 23:41 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-19 19:07 [PATCH liburing] test: Add kworker-hang test Ammar Faizi
2021-10-20 12:51 ` [PATCH v2 " Ammar Faizi
2021-11-05 23:35   ` Ammar Faizi
2021-11-05 23:41     ` Jens Axboe [this message]
2021-11-06  0:58       ` [PATCH v3 " Ammar Faizi
2021-11-06  7:42         ` [PATCH v4 " Ammar Faizi
2021-11-06 11:37           ` [PATCH v5 " Ammar Faizi
2021-11-06 11:49             ` [PATCH v6 " Ammar Faizi
2021-11-09  5:44               ` Ammar Faizi
2021-11-09 14:47                 ` Jens Axboe
2021-11-09 15:21                   ` Ammar Faizi

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