From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Xi Ruoyao <xry111@xry111.site>
Cc: Jiayuan Chen <jiayuan.chen@linux.dev>,
linux-rt-devel@lists.linux.dev,
Steven Rostedt <rostedt@goodmis.org>,
Clark Williams <clrkwllms@kernel.org>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
linux-kernel@vger.kernel.org, Mingcong Bai <jeffbai@aosc.io>,
Henry Chen <chenx97@aosc.io>, Huacai Chen <chenhuacai@kernel.org>
Subject: Re: [PATCH v2] irq_work: Fix use-after-free in irq_work_single on PREEMPT_RT
Date: Fri, 5 Jun 2026 12:45:30 +0200 [thread overview]
Message-ID: <20260605104530.LDbF5MDD@linutronix.de> (raw)
In-Reply-To: <52db48708d5a7fbcd146745c4288e567424c909a.camel@xry111.site>
On 2026-06-05 18:31:41 [+0800], Xi Ruoyao wrote:
> Hi,
>
> This commit significantly slows down execve() (and perhaps other things)
> on MIPS. A very simple program:
This is probably originating from sched_mm_cid_exit(). Can you check?
Sebastian
next prev parent reply other threads:[~2026-06-05 10:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-30 7:32 [PATCH v2] irq_work: Fix use-after-free in irq_work_single on PREEMPT_RT Jiayuan Chen
2026-04-02 6:50 ` Sebastian Andrzej Siewior
2026-06-05 10:31 ` Xi Ruoyao
2026-06-05 10:45 ` Sebastian Andrzej Siewior [this message]
2026-06-05 17:26 ` Xi Ruoyao
2026-05-11 14:31 ` [tip: irq/urgent] irq_work: Fix use-after-free in irq_work_single() " tip-bot2 for Jiayuan Chen
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