linux-kernel - Re: [PATCH] sched/fair: Fix DELAY_DEQUEUE issue related to cgroup throttling

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: <20250930125621.GO3419281@noisy.programming.kicks-ass.net>
Date: Tue, 30 Sep 2025 14:56:21 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Han Guangjiang <gj.han@...mail.com>
Cc: Ingo Molnar <mingo@...hat.com>, Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
	Valentin Schneider <vschneid@...hat.com>,
	"open list:SCHEDULER" <linux-kernel@...r.kernel.org>,
	hanguangjiang@...iang.com, fanggeng@...iang.com,
	yangchen11@...iang.com
Subject: Re: [PATCH] sched/fair: Fix DELAY_DEQUEUE issue related to cgroup
 throttling

On Thu, Sep 04, 2025 at 09:51:50AM +0800, Han Guangjiang wrote:
> From: Han Guangjiang <hanguangjiang@...iang.com>
> 
> When both CPU cgroup and memory cgroup are enabled with parent cgroup
> resource limits much smaller than child cgroup's, the system frequently
> hangs with NULL pointer dereference:

Is this the same issue as here:

  https://lore.kernel.org/all/105ae6f1-f629-4fe7-9644-4242c3bed035@amd.com/T/#u

  ?