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Message-Id: <a8bf11e4-8d2f-4fe8-9d6d-533c7b19db8d@www.fastmail.com>
Date:   Fri, 02 Sep 2022 12:53:10 -0400
From:   "Chris Murphy" <lists@...orremedies.com>
To:     "Yu Kuai" <yukuai1@...weicloud.com>,
        "Ming Lei" <ming.lei@...hat.com>, "Jan Kara" <jack@...e.cz>
Cc:     "Nikolay Borisov" <nborisov@...e.com>,
        "Jens Axboe" <axboe@...nel.dk>,
        "Paolo Valente" <paolo.valente@...aro.org>,
        "Btrfs BTRFS" <linux-btrfs@...r.kernel.org>,
        Linux-RAID <linux-raid@...r.kernel.org>,
        linux-block <linux-block@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "Josef Bacik" <josef@...icpanda.com>,
        "yukuai (C)" <yukuai3@...wei.com>
Subject: Re: stalling IO regression since linux 5.12, through 5.18



On Thu, Sep 1, 2022, at 3:02 AM, Yu Kuai wrote:
> Hi, Chris


>> Also follows another patch merged to v5.18 and it fixes io stall too, feel free to test it:
>> 
>> 8f5fea65b06d blk-mq: avoid extending delays of active hctx from blk_mq_delay_run_hw_queues
>
> Have you tried this patch?

The problem happens on 5.18 series kernels. But takes longer. Once I regain access to this setup, I can try to reproduce on 5.18 and 5.19, and provide block debugfs logs. 


-- 
Chris Murphy

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