From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6033 invoked by alias); 25 Sep 2011 21:44:09 -0000 Received: (qmail 6021 invoked by uid 22791); 25 Sep 2011 21:44:08 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO sourceware.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sun, 25 Sep 2011 21:43:56 +0000 From: "mihaylov.mihail at gmail dot com" To: glibc-bugs@sources.redhat.com Subject: [Bug nptl/13165] pthread_cond_wait() can consume a signal that was sent before it started waiting Date: Sun, 25 Sep 2011 21:44:00 -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: normal X-Bugzilla-Who: mihaylov.mihail 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: Message-ID: In-Reply-To: References: 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: List-Subscribe: List-Post: List-Help: , Sender: glibc-bugs-owner@sourceware.org X-SW-Source: 2011-09/txt/msg00108.txt.bz2 http://sourceware.org/bugzilla/show_bug.cgi?id=13165 --- Comment #6 from Mihail Mihaylov 2011-09-25 21:43:17 UTC --- (In reply to comment #3) > If you have a minimal self-contained test case for the issue, I'd be interested > in seeing it. I wrote a self-contained test case. It is not very simple, and may seem contrived. My real code is actually much simpler (just one condition variable), but it is not suitable as a test. I ran the test on my dual-core laptop and had consistent results of one stolen signal. I guess that with more cores it will be possible for more signals to be stolen. Typically it took from 3 to 40 iterations to hit the race. I would appreciate your feedback. -- 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.