From: Pat Cody <pat@patcody.io>
To: Christian Loehle <christian.loehle@arm.com>
Cc: mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
vschneid@redhat.com, linux-kernel@vger.kernel.org,
riel@surriel.com, patcody@meta.com, kernel-team@meta.com,
stable@vger.kernel.org
Subject: Re: [PATCH] sched/fair: Add null pointer check to pick_next_entity()
Date: Fri, 21 Mar 2025 10:52:29 -0700 [thread overview]
Message-ID: <Z92nQ8fQRGoEh4+k@devvm1948.rva0.facebook.com> (raw)
In-Reply-To: <72cb8df7-42e7-4266-b014-7d43796b14d8@arm.com>
On Thu, Mar 20, 2025 at 10:42:44PM +0000, Christian Loehle wrote:
> Did this happen on mainline? Any chance it's reproducible?
We have the following back-ported on top of 6.13:
sched/fair: Adhere to place_entity() constraints (not upstreamed, see https://lore.kernel.org/all/20250207111141.GD7145@noisy.programming.kicks-ass.net/)
a430d99e3490 sched/fair: Fix value reported by hot tasks pulled in /proc/schedstat
2a77e4be12cb sched/fair: Untangle NEXT_BUDDY and pick_next_task()
We don't have a repro, but the crash in pick_task_fair happens more
often than MCE crashes with our limited deployment of 6.13.
next prev parent reply other threads:[~2025-03-21 17:52 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-20 20:53 [PATCH] sched/fair: Add null pointer check to pick_next_entity() Pat Cody
2025-03-20 22:42 ` Christian Loehle
2025-03-21 17:52 ` Pat Cody [this message]
2025-03-24 11:56 ` Peter Zijlstra
2025-03-25 15:12 ` Pat Cody
2025-03-25 18:59 ` Peter Zijlstra
2025-03-26 19:26 ` Pat Cody
2025-04-02 14:59 ` Rik van Riel
2025-04-02 18:07 ` Peter Zijlstra
2025-04-09 14:29 ` Rik van Riel
2025-04-09 15:27 ` Peter Zijlstra
2025-04-11 14:51 ` Rik van Riel
2025-04-14 9:08 ` Peter Zijlstra
2025-04-14 15:38 ` Chris Mason
2025-04-15 10:07 ` Peter Zijlstra
2025-04-16 7:59 ` Peter Zijlstra
[not found] ` <7B2CFC16-1ADE-4565-B555-7525A50494C2@surriel.com>
[not found] ` <20250402082221.GT5880@noisy.programming.kicks-ass.net>
2025-04-14 19:57 ` Rik van Riel
2025-04-15 8:02 ` Peter Zijlstra
2025-04-16 12:44 ` Peter Zijlstra
2025-04-16 14:19 ` Rik van Riel
2025-04-16 15:27 ` Chris Mason
2025-04-18 15:44 ` Peter Zijlstra
2025-04-18 23:49 ` Omar Sandoval
2025-04-22 0:06 ` Omar Sandoval
2025-04-22 14:13 ` Peter Zijlstra
2025-04-22 15:14 ` Peter Zijlstra
2025-04-25 8:53 ` Omar Sandoval
2025-04-22 13:36 ` Peter Zijlstra
2025-04-19 2:53 ` Mike Galbraith
[not found] <20250320173438.3562449-2-patcody@meta.com>
2025-03-24 15:56 ` Steven Rostedt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Z92nQ8fQRGoEh4+k@devvm1948.rva0.facebook.com \
--to=pat@patcody.io \
--cc=bsegall@google.com \
--cc=christian.loehle@arm.com \
--cc=dietmar.eggemann@arm.com \
--cc=juri.lelli@redhat.com \
--cc=kernel-team@meta.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mgorman@suse.de \
--cc=mingo@redhat.com \
--cc=patcody@meta.com \
--cc=peterz@infradead.org \
--cc=riel@surriel.com \
--cc=rostedt@goodmis.org \
--cc=stable@vger.kernel.org \
--cc=vincent.guittot@linaro.org \
--cc=vschneid@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.