linux-ext4 - Re: Write I/O queue hangup at random on recent Linus' kernels

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Message-ID: <986e942b-d430-783b-5b1c-4525d4a94e48@panix.com>
Date:   Fri, 26 Nov 2021 09:58:18 -0800 (PST)
From:   "Kenneth R. Crudup" <kenny@...ix.com>
To:     Jens Axboe <axboe@...nel.dk>
cc:     linux-bcache@...r.kernel.org, linux-block@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-nvme@...ts.infradead.org,
        Shinichiro Kawasaki <shinichiro.kawasaki@....com>,
        "Kenneth R. Crudup" <kenny@...ix.com>
Subject: Re: Write I/O queue hangup at random on recent Linus' kernels


On Fri, 26 Nov 2021, Jens Axboe wrote:

> Can you apply this on top of 5.16-rc2 or current -git and see if it fixes
> it for you?

Since it's related to writeback throttling, is there anything I can try to
taunt it? I was thinking "iozone" or "bonnie++", but if there's something
better, let me know.

	-Kenny

-- 
Kenneth R. Crudup / Sr. SW Engineer, Scott County Consulting, Orange County CA