From owner-freebsd-questions@FreeBSD.ORG Mon Aug 18 20:15:34 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7558037B401 for ; Mon, 18 Aug 2003 20:15:34 -0700 (PDT) Received: from poecilotheria.netmails.net (netmails.net [12.96.164.138]) by mx1.FreeBSD.org (Postfix) with SMTP id 1578C43F93 for ; Mon, 18 Aug 2003 20:15:33 -0700 (PDT) (envelope-from subscr@poecilotheria.netmails.net) Received: (qmail 17412 invoked by uid 1012); 19 Aug 2003 03:15:32 -0000 Date: Mon, 18 Aug 2003 22:15:32 -0500 From: Hari Bhaskaran To: Greg 'groggy' Lehey Message-ID: <20030819031532.GA17344@poecilotheria.netmails.net> References: <20030817200141.GA10480@poecilotheria.netmails.net> <20030817235159.GZ15411@wantadilla.lemis.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="9jxsPFA5p3P2qPhR" Content-Disposition: inline In-Reply-To: <20030817235159.GZ15411@wantadilla.lemis.com> User-Agent: Mutt/1.4i X-Content-Filtered-By: Mailman/MimeDel 2.1.1 cc: FreeBSD Questions Subject: Re: panic on heavy read/writes (5.1 + vinum) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Aug 2003 03:15:34 -0000 --9jxsPFA5p3P2qPhR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline ok, here is it, trace for kernel panic NOTE: There seems to a problem in the .gdbinit files (I may need your help on that). panic: free locked buf panic messages: --- Fatal trap 12: page fault while in kernel mode fault virtual address = 0x14 fault code = supervisor write, page not present instruction pointer = 0x8:0xc02d15f9 stack pointer = 0x10:0xd257d858 frame pointer = 0x10:0xd257d88c 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 = 94137 (genattrtab) trap number = 12 panic: page fault syncing disks, buffers remaining... 2220 2220 panic: free locked buf Uptime: 5h12m33s Dumping 256 MB ata0: resetting devices .. done 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 --- And here is the output on gdb f & bt commands (kgdb) f 1 #1 0xc0303b9a in boot () (kgdb) bt #0 0xc030366b in doadump () #1 0xc0303b9a in boot () #2 0xc0303e53 in panic () #3 0xc2758926 in freerq (rq=0xc2ebc8c0) at /usr/src/sys/dev/vinum/vinuminterrupt.c:252 #4 0xc275882a in complete_rqe (bp=0xc2633024) at /usr/src/sys/dev/vinum/vinuminterrupt.c: 230 #5 0xc0346451 in bufdone () #6 0xc0346354 in bufdonebio () #7 0xc03461b2 in biodone () #8 0xc02d159e in g_dev_done () #9 0xc03461b2 in biodone () #10 0xc02d3d42 in g_io_schedule_up () #11 0xc02d3f38 in g_up_procbody () #12 0xc02f109e in fork_exit () Now this trace may be wrong because gdb gave this error when it loaded. Reading symbols from /usr/obj/usr/src/sys/DEBUG/modules/usr/src/sys/modules/vinum/vinum.ko .debug...done. Loaded symbols for /usr/obj/usr/src/sys/DEBUG/modules/usr/src/sys/modules/vinum/vinum.ko.d ebug #0 0xc030366b in doadump () .gdbinit:4: Error in sourced command file: Attempt to extract a component of a value that is not a structure. I have all these in separate files (output, gdbinit files etc) in a zip. BTW, I was doing a make buildworld while the machine crashed. And yes, both kernel and vinum.ko have debugging info. ettukaali# file /boot/kernel/kernel /boot/kernel/kernel: ELF 32-bit LSB executable, Intel 80386, version 1 (FreeBSD), dynamically linked (uses shared libs), not stripped ettukaali# ls -al /boot/kernel/kernel -r-xr-xr-x 1 root wheel 5455085 Aug 17 23:07 /boot/kernel/kernel ettukaali# file /boot/kernel/vinum.ko /boot/kernel/vinum.ko: ELF 32-bit LSB shared object, Intel 80386, version 1 (FreeBSD), not stripped ettukaali# ls -al /boot/kernel/vinum.ko -r-xr-xr-x 1 root wheel 96588 Aug 18 07:34 /boot/kernel/vinum.ko ettukaali# (Aug 17 23:07 is approx when I made the debug kernel) (Aug 18 07:34 is approx when I did make installkernel - although I would have expected the last-mod-time on vinum.ko to match that of kernel) Either-way the make buildworld wouldn't have affected any of these files since I did it in the afternoon. -- Hari On Mon, Aug 18, 2003 at 09:21:59AM +0930, Greg 'groggy' Lehey wrote: > Follow the steps at > http://www.vinumvm.org/vinum/how-to-debug.html#panic. I can't help > you if you don't tell me what's wrong. --9jxsPFA5p3P2qPhR--