From: Thomas Gleixner <tglx@linutronix.de>
To: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
Oleg Nesterov <oleg@redhat.com>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Richard Henderson <richard.henderson@linaro.org>,
Ilya Leoshkevich <iii@linux.ibm.com>
Subject: Re: [PATCH] posix-timers: Fix a race with __exit_signal()
Date: Mon, 02 Dec 2024 22:46:42 +0100 [thread overview]
Message-ID: <87frn5vjul.ffs@tglx> (raw)
In-Reply-To: <20241202155547.8214-1-iii@linux.ibm.com>
On Mon, Dec 02 2024 at 16:54, Ilya Leoshkevich wrote:
> If a thread exit happens simultaneously with a POSIX timer signal, this
> POSIX timer may end up being erroneously stopped. This problem may be
> reproduced with a small C program that creates a POSIX timer and
> constantly respawns threads, e.g. [1].
AFAICT this has been fixed with commit:
63dffecfba3e ("posix-timers: Target group sigqueue to current task only if not exiting")
Are you sure, that you have this commit in your testing? It's in rc1.
Thanks,
tglx
prev parent reply other threads:[~2024-12-02 21:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-02 15:54 [PATCH] posix-timers: Fix a race with __exit_signal() Ilya Leoshkevich
2024-12-02 17:28 ` Oleg Nesterov
2024-12-02 18:59 ` Ilya Leoshkevich
2024-12-02 21:46 ` Thomas Gleixner [this message]
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