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From: Florian Weimer <fweimer@redhat.com>
To: Alejandro Colomar <alx@kernel.org>
Cc: Arkadiusz Drabczyk <arkadiusz@drabczyk.org>,
	 mtk.manpages@gmail.com, linux-man@vger.kernel.org,
	 libc-help@sourceware.org
Subject: Re: signal(7): why does it say that pthread_mutex_lock() and thread_cond_wait() can fail with EINTR?
Date: Thu, 02 Jan 2025 10:53:57 +0100	[thread overview]
Message-ID: <87ikqxee2y.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <ltdxctn6eghheiagtjfqwji22xdapzi63nvuxttgvvmh4v2236@6enzyka7yaks> (Alejandro Colomar's message of "Thu, 2 Jan 2025 01:19:38 +0100")

* Alejandro Colomar:

>> The underlying futex() call indeed fails with EINTR but it's called
>> again by both glibc and musl.
>
> I've CCed glibc, in case they can comment.  Maybe this behavior changed
> at some point in the past?  I don't know.

Maybe in the LinuxThreads implementation.  I think NPTL has handled this
correctly from the beginning.  POSIX bans the EINTR failure condition.

Thanks,
Florian


  reply	other threads:[~2025-01-02  9:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-01 22:20 signal(7): why does it say that pthread_mutex_lock() and thread_cond_wait() can fail with EINTR? Arkadiusz Drabczyk
2025-01-02  0:19 ` Alejandro Colomar
2025-01-02  9:53   ` Florian Weimer [this message]
2025-01-02 12:13     ` Alejandro Colomar
2025-01-02 19:50       ` Arkadiusz Drabczyk
2025-01-03  1:08         ` Alejandro Colomar

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