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From: Stanislav Meduna <stano-eBkVDd3zSwodnm+yROfE0A@public.gmane.org>
To: libc-help-9JcytcrH/bA+uJoB2kUjGw@public.gmane.org
Cc: "linux-rt-users-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-rt-users-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: malloc/free and priority inheritance?
Date: Wed, 03 Apr 2013 01:06:36 +0200	[thread overview]
Message-ID: <515B647C.3080505@meduna.org> (raw)

Hi,

I am hunting a possible priority inversion case and I would like
to ask whether the malloc/free from glibc (particularly 2.11.3
used in Debian 6 or newer) uses priority inheritance mutexes
when doing the necessary locking.

There is http://sourceware.org/bugzilla/show_bug.cgi?id=12114
which would suggest that it is not - is this (still) true?
If yes, is there some patch or are there tried&tested alternative
malloc libraries that do not have the problem (e.g. tcmalloc)?
I am using it on a RT_PREEMPT_FULL linux-rt.

Please Cc me on answer, I am not subscribed to libc-help

Thanks
-- 
                                        Stano

             reply	other threads:[~2013-04-02 23:06 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-02 23:06 Stanislav Meduna [this message]
2013-04-04 12:59 ` malloc/free and priority inheritance? Stanislav Meduna
2013-04-04 13:30   ` Stanislav Meduna
2013-04-04 13:37     ` Siddhesh Poyarekar
2013-04-04 14:53       ` Carlos O'Donell
2013-04-04 15:32         ` Siddhesh Poyarekar
2013-04-06 14:24           ` Carlos O'Donell
2013-04-04 15:09       ` Stanislav Meduna
2013-04-04 15:39         ` Siddhesh Poyarekar
2013-04-05 17:39           ` Darren Hart
2013-04-06 14:27             ` Carlos O'Donell

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