From owner-freebsd-stable@FreeBSD.ORG Fri Dec 26 15:04:26 2008 Return-Path: Delivered-To: FreeBSD-stable@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7659D106564A for ; Fri, 26 Dec 2008 15:04:26 +0000 (UTC) (envelope-from barbara.xxx1975@libero.it) Received: from cp-out2.libero.it (cp-out2.libero.it [212.52.84.102]) by mx1.freebsd.org (Postfix) with ESMTP id 761158FC22 for ; Fri, 26 Dec 2008 15:04:25 +0000 (UTC) (envelope-from barbara.xxx1975@libero.it) Received: from wmail19 (172.31.0.29) by cp-out2.libero.it (8.5.016.1) id 493F94E1016162E6 for FreeBSD-stable@FreeBSD.org; Fri, 26 Dec 2008 16:04:22 +0100 Message-ID: <4719661.485641230303862495.JavaMail.defaultUser@defaultHost> Date: Fri, 26 Dec 2008 16:04:22 +0100 (CET) From: Barbara To: FreeBSD-stable@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain;charset="UTF-8" Content-Transfer-Encoding: 7bit X-SenderIP: 87.11.229.158 Cc: Subject: Fatal trap 12: page fault while in kernel mode (swi6: task queue) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Barbara List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Dec 2008 15:04:26 -0000 Can anyone help understanding the reason? # uname -rsm FreeBSD 6.4-STABLE i386 # kgdb kernel.debug /var/crash/vmcore.7 GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-marcel-freebsd"... Unread portion of the kernel message buffer: acd0: WARNING - PREVENT_ALLOW read data overrun 18>0 kernel trap 12 with interrupts disabled Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x104 fault code = supervisor read, page not present instruction pointer = 0x20:0xc0541da5 stack pointer = 0x28:0xe5928c00 frame pointer = 0x28:0xe5928c18 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = resume, IOPL = 0 current process = 17 (swi6: task queue) trap number = 12 panic: page fault cpuid = 0 Uptime: 4h16m22s Physical memory: 2031 MB Dumping 204 MB: 189 173 157 141 125 109 93 77 61 45 29 13 Reading symbols from /boot/kernel/linux.ko...done. Loaded symbols for /boot/kernel/linux.ko Reading symbols from /boot/modules/nvidia.ko...done. Loaded symbols for /boot/modules/nvidia.ko Reading symbols from /boot/kernel/acpi.ko...done. Loaded symbols for /boot/kernel/acpi.ko Reading symbols from /boot/kernel/linprocfs.ko...done. Loaded symbols for /boot/kernel/linprocfs.ko Reading symbols from /boot/kernel/logo_saver.ko... done. Loaded symbols for /boot/kernel/logo_saver.ko #0 doadump () at pcpu.h: 165 165 __asm __volatile("movl %%fs:0,%0" : "=r" (td)); (kgdb) bt #0 doadump () at pcpu.h:165 #1 0xc054d7d9 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:410 #2 0xc054dba6 in panic (fmt=0xc0736cc9 "% s") at /usr/src/sys/kern/kern_shutdown.c:566 #3 0xc071812c in trap_fatal (frame=0xe5928bc0, eva=0) at /usr/src/sys/i386/i386/trap.c:838 #4 0xc07177e4 in trap (frame= {tf_fs = 8, tf_es = 40, tf_ds = 40, tf_edi = -960560384, tf_esi = 4, tf_ebp = -443380712, tf_isp = -443380756, tf_ebx = -942867596, tf_edx = 6, tf_ecx = 4, tf_eax = 1, tf_trapno = 12, tf_err = 0, tf_eip = -1068229211, tf_cs = 32, tf_eflags = 65538, tf_esp = -942867596, tf_ss = 0}) at /usr/src/sys/i386/i386/trap.c:270 #5 0xc06ff98a in calltrap () at /usr/src/sys/i386/i386/exception.s:139 #6 0xc0541da5 in _mtx_lock_sleep (m=0xc7ccfb74, tid=3334406912, opts=0, file=0x0, line=0) at /usr/src/sys/kern/kern_mutex.c:546 #7 0xc054ca79 in _sema_post (sema=0xc7ccfb74, file=0x0, line=0) at /usr/src/sys/kern/kern_sema.c:79 #8 0xc04705e3 in ata_completed (context=0xc7ccfb28, dummy=1) at /usr/src/sys/dev/ata/ata-queue.c:481 #9 0xc057547d in taskqueue_run (queue=0xc6c8a000) at /usr/src/sys/kern/subr_taskqueue.c:257 #10 0xc0575793 in taskqueue_swi_run (dummy=0x0) at /usr/src/sys/kern/subr_taskqueue.c:299 #11 0xc052ff1b in ithread_execute_handlers (p=0xc6bef860, ie=0xc6c44e80) at /usr/src/sys/kern/kern_intr.c:682 #12 0xc0530077 in ithread_loop (arg=0xc6c62510) at /usr/src/sys/kern/kern_intr.c:766 #13 0xc052e800 in fork_exit (callout=0xc0530010 , arg=0x1, frame=0x1) at /usr/src/sys/kern/kern_fork.c:788 #14 0xc06ff9ec in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:208 (kgdb) frame 6 #6 0xc0541da5 in _mtx_lock_sleep (m=0xc7ccfb74, tid=3334406912, opts=0, file=0x0, line=0) at /usr/src/sys/kern/kern_mutex.c:546 546 owner = (struct thread *)(v & MTX_FLAGMASK); (kgdb) list 541 #if defined(SMP) && !defined (NO_ADAPTIVE_MUTEXES) 542 /* 543 * If the current owner of the lock is executing on another 544 * CPU, spin instead of blocking. 545 */ 546 owner = (struct thread *)(v & MTX_FLAGMASK); 547 #ifdef ADAPTIVE_GIANT 548 if (TD_IS_RUNNING(owner)) { 549 #else 550 if (m != &Giant && TD_IS_RUNNING (owner)) {