From owner-freebsd-current@FreeBSD.ORG Tue Aug 3 11:07:14 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1362F1065676 for ; Tue, 3 Aug 2010 11:07:14 +0000 (UTC) (envelope-from mexas@bristol.ac.uk) Received: from dirj.bris.ac.uk (dirj.bris.ac.uk [137.222.10.78]) by mx1.freebsd.org (Postfix) with ESMTP id C484E8FC0A for ; Tue, 3 Aug 2010 11:07:13 +0000 (UTC) Received: from ncsd.bris.ac.uk ([137.222.10.59] helo=ncs.bris.ac.uk) by dirj.bris.ac.uk with esmtp (Exim 4.69) (envelope-from ) id 1OgFKy-0000w5-IW for freebsd-current@freebsd.org; Tue, 03 Aug 2010 12:07:12 +0100 Received: from mech-cluster241.men.bris.ac.uk ([137.222.187.241]) by ncs.bris.ac.uk with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.67) (envelope-from ) id 1OgFKy-0001Mv-Fb for freebsd-current@freebsd.org; Tue, 03 Aug 2010 12:07:12 +0100 Received: from mech-cluster241.men.bris.ac.uk (localhost [127.0.0.1]) by mech-cluster241.men.bris.ac.uk (8.14.4/8.14.4) with ESMTP id o73B7CCP038029 for ; Tue, 3 Aug 2010 12:07:12 +0100 (BST) (envelope-from mexas@bristol.ac.uk) Received: (from mexas@localhost) by mech-cluster241.men.bris.ac.uk (8.14.4/8.14.4/Submit) id o73B7Co3038028 for freebsd-current@freebsd.org; Tue, 3 Aug 2010 12:07:12 +0100 (BST) (envelope-from mexas@bristol.ac.uk) X-Authentication-Warning: mech-cluster241.men.bris.ac.uk: mexas set sender to mexas@bristol.ac.uk using -f Date: Tue, 3 Aug 2010 12:07:12 +0100 From: Anton Shterenlikht To: freebsd-current@freebsd.org Message-ID: <20100803110711.GA37973@mech-cluster241.men.bris.ac.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) Subject: Fatal trap 12: page fault while in kernel mode, Stopped at _mtx_lock_spin_failed+0x2f: movl 0x78(%r12),%r8d X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Aug 2010 11:07:14 -0000 On amd64 r210786 booting kernel with iwn(4) I get this fatal trap (copied by hand) : *skip* acpi_throttle0: on cpu0 powernow0: on cpu0 acpi_throttle1: on cpu1 acpi_throttle1: failed to attach P_CNT device_attach: acpi_throttle1 attach returned 6 powernow1: on cpu1 Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x20000000178 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff803f2f9f stack pointer = 0x28:0xffffff80000adb10 frame pointer = 0x28:0xffffff80000adb30 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 0 (bwi0 taskq) [ thread pid 0 tid 100026 ] Stopped at _mtx_lock_spin_failed+0x2f: movl 0x78(%r12),%r8d db> bt Tracing pid 0 tid 100026 td 0xffffff000251d880 _mtx_lock_spin_failed() at _mtx_lock_spin_failed+0x2f _mtx_lock_spin() at _mtx_lock_spin+0x9e _mtx_lock_spin_flags() at _mtx_lock_spin_flags+0x115 taskqueue_thread_loop() at taskqueue_thread_loop_0x3f fork_exit() at fork_exit+0x12a fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, rsp = 0xffffff80000adcf0, rbp = 0 --- db> many thanks anton -- Anton Shterenlikht Room 2.6, Queen's Building Mech Eng Dept Bristol University University Walk, Bristol BS8 1TR, UK Tel: +44 (0)117 331 5944 Fax: +44 (0)117 929 4423