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From: Florian Weimer <fweimer@redhat.com>
To: Daniele Personal <d.dario76@gmail.com>
Cc: Rich Felker <dalias@libc.org>,
	 d.dario76@fmail.com, musl@lists.openwall.com
Subject: Re: [musl] pthread_mutex_t shared between processes with different pid namespaces
Date: Sat, 01 Feb 2025 17:03:20 +0100	[thread overview]
Message-ID: <878qqpbqk7.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <455063b99060bfd0d01aff1666ebb3892e001256.camel@gmail.com> (Daniele Personal's message of "Fri, 31 Jan 2025 10:31:46 +0100")

* Daniele Personal:

>> Is this required for implementing the unlock-if-not-owner error code
>> on mutex unlock?
>
> No, I don't see problems related to EOWNERDEAD.

Sorry, what I meant is that the TID is needed for efficient reporting of
usage errors.  It's not imposed by the robust list protocol as such.
There could be a PID-namespace-compatible robust mutex type that does
not have this problem (but with less error checking).

Thanks,
Florian


  parent reply	other threads:[~2025-02-01 16:03 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-28 13:22 Daniele Personal
2025-01-28 15:02 ` Rich Felker
2025-01-28 16:13   ` Daniele Personal
2025-01-28 18:24   ` Florian Weimer
2025-01-31  9:31     ` Daniele Personal
2025-01-31 20:30       ` Markus Wichmann
2025-02-03 13:54         ` Daniele Personal
2025-02-01 16:03       ` Florian Weimer [this message]
2025-02-03 12:58         ` Daniele Personal
2025-02-03 17:25           ` Florian Weimer
2025-02-04 16:48             ` Daniele Personal
2025-02-04 18:53             ` Rich Felker
2025-02-05 10:17               ` Daniele Personal
2025-02-05 10:32                 ` Florian Weimer
2025-02-06  7:45                   ` Daniele Personal
2025-02-07 16:19                     ` Rich Felker
2025-02-08  9:20                       ` Daniele Dario
2025-02-08 12:39                         ` Rich Felker
2025-02-08 14:40                           ` Daniele Dario
2025-02-08 14:52                             ` Rich Felker
2025-02-10 16:12                               ` Daniele Personal
2025-02-10 18:14                                 ` Rich Felker
2025-02-11  9:34                                   ` Daniele Personal
2025-02-11 11:38                                     ` Rich Felker
2025-02-11 13:53                                       ` Daniele Personal
2025-02-10 18:44                                 ` Jeffrey Walton
2025-02-10 18:58                                   ` Rich Felker
2025-02-07 16:34                     ` Florian Weimer

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