lkml.org 
[lkml]   [2022]   [Jan]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: "blk-mq: fix tag_get wait task can't be awakened" causes hangs
From
Date
On 1/24/22 9:08 PM, QiuLaibin wrote:
> Hi Alex
>
> 1、Please help to import this structure:
>
> blk_mq_tags <= request_queue->blk_mq_hw_ctx->blk_mq_tags
>
> If there is no kernel dump, help to see the value of
>
> cat /sys/block/sda/mq/0/nr_tags
> __ <= Change it to the problem device
>
> And how many block devices in total by lsblk.
>
> 2、Please describe in detail how to reproduce the issue,
>
> And what type of USB device?
>
> 3、Please help to try the attachment patch and see if it can be reproduced.

Any progress on this? I strongly suspect that any QD=1 setup would
trivially show the issue, based on the reports.

--
Jens Axboe

\
 
 \ /
  Last update: 2022-01-26 14:39    [W:0.062 / U:0.260 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site