From: Randolph Chung <randolph@tausq.org>
To: parisc-linux@parisc-linux.org
Subject: Re: [parisc-linux] Problem with threads..
Date: Sun, 30 Dec 2001 10:42:22 -0800 [thread overview]
Message-ID: <20011230184222.GC2179@tausq.org> (raw)
In-Reply-To: <20011229235830.4bfec5f9.csuder@cisco.com>
> > fwiw, what i've seen elsewhere is that on palinux, you have to make sure
> > the mutex is initialized before locking works. on other platforms
> > sometimes you can get away with doing a lock without a mutex init.
>
> Yes !!! There was one of 4 mutex not initialized, added that one and now
> it works.
Just to clarify...
hppa is the only platform supported by linuxthreads right now where we
initialize the mutex variable to 1 so that we can do locking using ldcw. On
other platforms, locks are initialized to 0 and locking is done using things
like test-and-set.
In general, you always need to call pthread_mutex_init for mutexes to
work. In the case of pan, the mutex variable is declared static, so it
is automatically initialized to 0.
randolph
--
@..@ http://www.TauSq.org/
(----)
( >__< )
^^ ~~ ^^
next prev parent reply other threads:[~2001-12-30 18:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-29 9:24 [parisc-linux] Problem with threads Christian Suder
2001-12-29 12:42 ` andi
2001-12-30 6:44 ` Randolph Chung
2001-12-30 7:58 ` Christian Suder
2001-12-30 8:49 ` Randolph Chung
2001-12-30 18:42 ` Randolph Chung [this message]
2001-12-30 21:55 ` andi
2001-12-31 5:07 ` Randolph Chung
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