From owner-freebsd-bugs@FreeBSD.ORG Thu Jul 5 13:10:10 2007 Return-Path: X-Original-To: freebsd-bugs@hub.freebsd.org Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 3567716A47A for ; Thu, 5 Jul 2007 13:10:10 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [69.147.83.40]) by mx1.freebsd.org (Postfix) with ESMTP id D48E513C483 for ; Thu, 5 Jul 2007 13:10:09 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.4/8.13.4) with ESMTP id l65DA996080823 for ; Thu, 5 Jul 2007 13:10:09 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.4/8.13.4/Submit) id l65DA90W080820; Thu, 5 Jul 2007 13:10:09 GMT (envelope-from gnats) Date: Thu, 5 Jul 2007 13:10:09 GMT Message-Id: <200707051310.l65DA90W080820@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org From: Kai Storbeck Cc: Subject: Re: kern/113823: [panic] Fatal trap 12: page fault while in kernel mode X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Kai Storbeck List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Jul 2007 13:10:10 -0000 The following reply was made to PR kern/113823; it has been noted by GNATS. From: Kai Storbeck To: bug-followup@FreeBSD.org, dan@more.net Cc: Subject: Re: kern/113823: [panic] Fatal trap 12: page fault while in kernel mode Date: Thu, 05 Jul 2007 14:57:04 +0200 Hi Dan, With some fancy searching I found your report in the PR database; we're getting the exact same backtrace from our Dovecot mailservers (serving IMAP) with an NFS backend. Backtrace is pasted below. Did you get any progression on this bug? Can I help? We're experiencing it a few times per week on 20 imapservers, so not that often, but we could use a fix :) Best regards, Kai Fatal trap 12: page fault while in kernel mode cpuid = 2; apic id = 06 fault virtual address = 0x104E fault code = supervisor read, page not presentx #0 doadump () at pcpu.h:165 165 pcpu.h: No such file or directory. in pcpu.h (kgdb) bt #0 doadump () at pcpu.h:165 #1 0xc0670918 in boot (howto=260) at ../../../kern/kern_shutdown.c:409 #2 0xc0670bfa in panic (fmt=0xc08d0a0d "%s") at ../../../kern/kern_shutdown.c:565 #3 0xc087819c in trap_fatal (frame=0xe8916c30, eva=260) at ../../../i386/i386/trap.c:837 #4 0xc087794a in trap (frame= {tf_fs = -393150456, tf_es = -1064959960, tf_ds = -393150424, tf_edi = -935090688, tf_esi = -900488032, tf_ebp = -393122692, tf_isp = -393122724, tf_ebx = 4, tf_edx = 6, tf_ecx = 2, tf_eax = 1, tf_trapno = 12, tf_err = 0, tf_eip = -1067020483, tf_cs = 32, tf_eflags = 65538, tf_esp = 1714, tf_ss = -1064340051}) at ../../../i386/i386/trap.c:270 #5 0xc08649ea in calltrap () at ../../../i386/i386/exception.s:139 #6 0xc0668f3d in _mtx_lock_sleep (m=0xca53a4a0, tid=3359876608, opts=0, file=0xc08f75ad "../../../kern/uipc_usrreq.c", line=1714) at ../../../kern/kern_mutex.c:546 #7 0xc0668b93 in _mtx_lock_flags (m=0x2, opts=0, file=0xc08f75ad "../../../kern/uipc_usrreq.c", line=1714) at ../../../kern/kern_mutex.c:288 #8 0xc06b204b in unp_gc (arg=0x0, pending=1) at ../../../kern/uipc_usrreq.c:1714 #9 0xc068f7c0 in taskqueue_run (queue=0xc843ca80) at ../../../kern/subr_taskqueue.c:257 #10 0xc068fb3e in taskqueue_thread_loop (arg=0x1) at ../../../kern/subr_taskqueue.c:376 #11 0xc065d184 in fork_exit (callout=0xc068faf4 , arg=0xc09df4e8, frame=0xe8916d38) at ../../../kern/kern_fork.c:821 #12 0xc0864a4c in fork_trampoline () at ../../../i386/i386/exception.s:208 -- This was an above the .signature production