linux-kernel - Re: [PATCH] driver core: fix async device shutdown hang

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <2024091753-estate-legroom-5d62@gregkh>
Date: Tue, 17 Sep 2024 22:42:52 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Stuart Hayes <stuart.w.hayes@...il.com>
Cc: linux-kernel@...r.kernel.org, "Rafael J . Wysocki" <rafael@...nel.org>,
	Martin Belanger <Martin.Belanger@...l.com>,
	Oliver O'Halloran <oohall@...il.com>,
	Daniel Wagner <dwagner@...e.de>, Keith Busch <kbusch@...nel.org>,
	Lukas Wunner <lukas@...ner.de>, David Jeffery <djeffery@...hat.com>,
	Jeremy Allison <jallison@....com>, Jens Axboe <axboe@...com>,
	Christoph Hellwig <hch@....de>, Sagi Grimberg <sagi@...mberg.me>,
	linux-nvme@...ts.infradead.org,
	Nathan Chancellor <nathan@...nel.org>,
	Jan Kiszka <jan.kiszka@...mens.com>
Subject: Re: [PATCH] driver core: fix async device shutdown hang

On Tue, Sep 17, 2024 at 03:15:17PM -0500, Stuart Hayes wrote:
> Modify device_shutdown() so that supplier devices do not wait for
> consumer devices to be shut down first when the devlink is sync state
> only, since the consumer is not dependent on the supplier in this case.
> 
> Without this change, a circular dependency could hang the system.
> 
> Signed-off-by: Stuart Hayes <stuart.w.hayes@...il.com>

What commit id does this fix?  Should it go to stable?

And what driver is causing this problem, is this a regression or for
something new that just got added to the tree?

thanks,

greg k-h