From: Peter Zijlstra <peterz@infradead.org>
To: Xia Fukun <xiafukun@huawei.com>
Cc: mingo@redhat.com, juri.lelli@redhat.com,
vincent.guittot@linaro.org, mgorman@suse.de, riel@redhat.com,
dietmar.eggemann@arm.com, rostedt@goodmis.org,
bsegall@google.com, vschneid@redhat.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] sched/fair: Fix division-by-zero error in task_scan_max()
Date: Tue, 2 Sep 2025 10:57:45 +0200 [thread overview]
Message-ID: <20250902085745.GT3289052@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <20250827123427.1229183-1-xiafukun@huawei.com>
On Wed, Aug 27, 2025 at 12:34:27PM +0000, Xia Fukun wrote:
> The error can be reproduced by following these steps:
> First, set sysctl_numa_balancing_scan_size to 0:
>
> echo 0 > /sys/kernel/debug/sched/numa_balancing/scan_size_mb
>
> Then trigger the clone system call, for example, by using
> pthread_create to create a new thread.
How about rejecting 0 instead?
prev parent reply other threads:[~2025-09-02 8:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-27 12:34 Xia Fukun
2025-09-02 8:08 ` Xia Fukun
2025-09-02 8:57 ` Peter Zijlstra [this message]
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