From owner-freebsd-questions@FreeBSD.ORG Tue Aug 19 06:52:28 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 5AB2C16A4BF for ; Tue, 19 Aug 2003 06:52:28 -0700 (PDT) Received: from poecilotheria.netmails.net (netmails.net [12.96.164.138]) by mx1.FreeBSD.org (Postfix) with SMTP id 67B1E43FA3 for ; Tue, 19 Aug 2003 06:52:27 -0700 (PDT) (envelope-from subscr@poecilotheria.netmails.net) Received: (qmail 19721 invoked by uid 1012); 19 Aug 2003 13:52:26 -0000 Date: Tue, 19 Aug 2003 08:52:26 -0500 From: Hari Bhaskaran To: Greg 'groggy' Lehey Message-ID: <20030819135226.GA19663@poecilotheria.netmails.net> References: <20030817200141.GA10480@poecilotheria.netmails.net> <20030817235159.GZ15411@wantadilla.lemis.com> <20030819031532.GA17344@poecilotheria.netmails.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030819031532.GA17344@poecilotheria.netmails.net> User-Agent: Mutt/1.4i 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 13:52:28 -0000 There are two files in /usr/obj/usr/src/sys/DEBUG/modules/usr/src/sys/modules/vinum One is vinum.ko and the other is vinum.ko.debug (Both are not stripped) I have tried the gdb dump with vinum.paths pointing to either one of them and it still gives the error mentioned below ("Attempt to extract..") -- Hari On Mon, Aug 18, 2003 at 10:15:32PM -0500, Hari Bhaskaran wrote: > 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. > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"