linux-kernel - Workqueue regression

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 for Android: free password hash cracker in your pocket

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

Message-ID: <b3d08cd8-d77f-45dd-a2c3-4a4db5a98dfa@kernel.org>
Date: Thu, 1 Feb 2024 21:57:59 +0100
From: Konrad Dybcio <konradybcio@...nel.org>
To: Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org,
 Naohiro.Aota@....com, kernel-team@...a.com
Cc: Bjorn Andersson <andersson@...nel.org>
Subject: Workqueue regression

Hi,

So, commit "Implement system-wide nr_active enforcement for unbound workqueues"
broke *something* and now performing a suspend-wakeup cycle on a Qualcomm
SC8280XP-based (arm64) platform hangs when performing the resume tasks,
presumably somewhere near PCIe reinitialization (but that may be a red herring).

Reverting the commit (and the ones on top of it due to conflicts) fixes
the issue on next-20240130 and later (plus some out-of-tree patches that
are largely unrelated).

Not sure where to start looking.

Konrad