From owner-freebsd-questions Wed Jan 7 21:02:39 1998 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id VAA00400 for questions-outgoing; Wed, 7 Jan 1998 21:02:39 -0800 (PST) (envelope-from owner-freebsd-questions) Received: from nomis.simon-shapiro.org (nomis.i-Connect.Net [206.190.143.100]) by hub.freebsd.org (8.8.7/8.8.7) with SMTP id VAA00386 for ; Wed, 7 Jan 1998 21:02:27 -0800 (PST) (envelope-from shimon@nomis.Simon-Shapiro.ORG) Received: (qmail 6539 invoked by uid 1000); 7 Feb 2036 15:39:56 -0000 Message-ID: X-Mailer: XFMail 1.3-alpha-010198 [p0] on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <199801072019.OAA18158@home.dragondata.com> Date: Thu, 07 Feb 2036 07:39:56 -0800 (PST) Reply-To: shimon@simon-shapiro.org Organization: The Simon Shapiro Foundation From: Simon Shapiro To: Kevin Day Subject: Re: Fatal trap 12 & debugging info ?? Cc: freebsd-questions@FreeBSD.org, freebsd-current@FreeBSD.org, (Penisoara Adrian) Sender: owner-freebsd-questions@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk On 07-Jan-98 Kevin Day wrote: >> Hi, >> >> For quite a while I'm bugged by sudden panics/reboots (all of them are >> 'fatal trap 12'); here it is the last one I had (hand rewritten): >> >> ============================================================ >> >> Fatal trap 12: page fault while in kernel mode >> mp_lock = 00000002; cpuid = 0; lapic.id = 00000000 >> fault virtual address = 0x0 >> fault code = supervisor read, page not present >> instruction pointer = 0x8:0xf01a9273 >> stack pointer = 0x10:0xf49cbe48 >> frame pointer = 0x10:0xf49cbe54 >> code segment = base 0x0, limit 0xfffff, type 0x1b >> = DPL 0, pres 1, def32 1, gran 1 >> processor eflags = interrupt enabled, resume, IOPL = 0 >> current process = 1594 (cron) >> interrupt mask = net tty bio cam <- SMP:XXX >> trap number = 12 >> panic: page fault >> mp_lock = 00000002; cpuid = 0; lapic.id = 00000000 >> boot called on cpu#0 >> >> syncing disks... >> > > I've had about 5 panics about exactly the same.... > > A trace shows free, execve, syscall, xsyscall then the debugger locks up > before showing any more... Yup. Only mine locks up on mp_lock = 01000001 and (obviously) CPU 1. ---------- Sincerely Yours, Simon Shapiro Shimon@Simon-Shapiro.ORG Voice: 503.799.2313