linux-kernel - Re: [RFC PATCH 1/3] workqueue: Add an interface to taint workqueue lockdep with reclaim

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] [day] [month] [year] [list]

Message-ID: <aPg4jKrlYajO7jd_@slm.duckdns.org>
Date: Tue, 21 Oct 2025 15:51:08 -1000
From: Tejun Heo <tj@...nel.org>
To: Matthew Brost <matthew.brost@...el.com>
Cc: intel-xe@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, jiangshanlai@...il.com,
	simona.vetter@...ll.ch, christian.koenig@....com,
	pstanner@...hat.com, dakr@...nel.org
Subject: Re: [RFC PATCH 1/3] workqueue: Add an interface to taint workqueue
 lockdep with reclaim

On Tue, Oct 21, 2025 at 06:22:19PM -0700, Matthew Brost wrote:
> > please update the patch so that WQ_MEM_RECLAIM implicitly enables the
> > checking?
> 
> Sure, but a bunch of things immediately break—including a convoluted
> case in my driver. I can fix the kernel to the extent that my CI catches
> issues, and fix any obvious cases through manual inspection. However,
> I suspect that if we merge this, we'll be dealing with fallout
> throughout a kernel RC cycle.

Sure, we're still early in this cycle and can try to resolve as much as
possible and if there's just too much, we can make it optional and so on.

Thanks.

-- 
tejun