linux-kernel - Re: [RFC PATCH] block: Make request_queue lockdep splats show up earlier

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Message-ID: <Z9kqYBnvrxBckn-u@fedora>
Date: Tue, 18 Mar 2025 16:10:08 +0800
From: Ming Lei <ming.lei@...hat.com>
To: Thomas Hellström <thomas.hellstrom@...ux.intel.com>
Cc: Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH] block: Make request_queue lockdep splats show up
 earlier

On Tue, Mar 18, 2025 at 08:56:18AM +0100, Thomas Hellström wrote:
> On Tue, 2025-03-18 at 09:18 +0800, Ming Lei wrote:
> > On Mon, Mar 17, 2025 at 06:11:55PM +0100, Thomas Hellström wrote:

...

> 
> One caveat though. If this is merged, people will probably start seeing
> the lockdep splat as a regression and bisects will point to this commit
> demanding the potential deadlock(s) to be fixed.

Don't worry, just keep linux-block@ updated with the report.

> 
> Is there a line of sight to fix the real deadlock?

The linux-block community has solved many such warnings recently, and your
patch could expose more, and we will try to address new coming reports as
before.


Thanks,
Ming