From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <glibc-bugs-return-13908-listarch-glibc-bugs=sources.redhat.com@sourceware.org>
Received: (qmail 20706 invoked by alias); 16 Jan 2012 20:03:03 -0000
Received: (qmail 20690 invoked by uid 22791); 16 Jan 2012 20:03:01 -0000
X-SWARE-Spam-Status: No, hits=-2.8 required=5.0	tests=ALL_TRUSTED,AWL,BAYES_00,TW_RW
X-Spam-Check-By: sourceware.org
Received: from localhost (HELO sourceware.org) (127.0.0.1)    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 16 Jan 2012 20:02:48 +0000
From: "ph.mathieu at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sources.redhat.com
Subject: [Bug nptl/13184] rwlocks can go into dead lock
Date: Mon, 16 Jan 2012 20:03:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: glibc
X-Bugzilla-Component: nptl
X-Bugzilla-Keywords:
X-Bugzilla-Severity: critical
X-Bugzilla-Who: ph.mathieu at gmail dot com
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: drepper.fsp at gmail dot com
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Changed-Fields: CC
Message-ID: <bug-13184-131-U16mylmyAT@http.sourceware.org/bugzilla/>
In-Reply-To: <bug-13184-131@http.sourceware.org/bugzilla/>
References: <bug-13184-131@http.sourceware.org/bugzilla/>
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
MIME-Version: 1.0
Mailing-List: contact glibc-bugs-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <glibc-bugs.sourceware.org>
List-Subscribe: <mailto:glibc-bugs-subscribe@sourceware.org>
List-Post: <mailto:glibc-bugs@sourceware.org>
List-Help: <mailto:glibc-bugs-help@sourceware.org>, <http://sourceware.org/lists.html#faqs>
Sender: glibc-bugs-owner@sourceware.org
X-SW-Source: 2012-01/txt/msg00095.txt.bz2

http://sourceware.org/bugzilla/show_bug.cgi?id=13184

Philippe Mathieu <ph.mathieu at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ph.mathieu at gmail dot com

--- Comment #6 from Philippe Mathieu <ph.mathieu at gmail dot com> 2012-01-16 20:02:45 UTC ---
I've observed the same problem on Opteron 270 processors. Even for a x86_64
targets.

> ./crazylock 4
crazylock: crazylock.c:37: cache_get: Assertion `rwlock.__data.__nr_readers <
n' failed.
crazylock: crazylock.c:31: cache_get: Assertion `rwlock.__data.__nr_readers <=
n' failed.
crazylock: crazylock.c:31: cache_get: Assertion `rwlock.__data.__nr_readers <=
n' failed.
crazylock: crazylock.c:37: cache_get: Assertion `rwlock.__data.__nr_readers <
n' failed.

> file crazylock
crazylock: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux),
dynamically linked (uses shared libs), for GNU/Linux 2.6.18, not stripped

-- 
Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.