From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15967 invoked by alias); 7 Apr 2006 03:43:53 -0000 Received: (qmail 15953 invoked by uid 48); 7 Apr 2006 03:43:50 -0000 Date: Fri, 07 Apr 2006 03:43:00 -0000 Message-ID: <20060407034350.15952.qmail@sourceware.org> From: "bibo dot mao at intel dot com" To: systemtap@sources.redhat.com In-Reply-To: <20060406181027.2525.joshua.i.stone@intel.com> References: <20060406181027.2525.joshua.i.stone@intel.com> Reply-To: sourceware-bugzilla@sourceware.org Subject: [Bug translator/2525] NMI Watchdog lockup with gettimeofday and do_timer probe X-Bugzilla-Reason: AssignedTo Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2006-q2/txt/msg00062.txt.bz2 ------- Additional Comments From bibo dot mao at intel dot com 2006-04-07 03:43 ------- do_timer is called by timer_interrupt() function, there is write_seqlock (&xtime_lock) sentence, and in do_gettimeofday sentence there will be do{ read_seqbegin(&xtime_lock); ... } while(read_seqretry(&xtime_lock, seq)); write_seqlock will increase xtime_lock.sequence by 1, interrupt is disabled when calling do_gettimeofday() function, there will be dead loop in do_gettimeofday () function. -- http://sourceware.org/bugzilla/show_bug.cgi?id=2525 ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee.