Date: Thu, 05 May 2005 20:17:31 +0530 From: Subhro <subhro.kar@gmail.com> To: Fabian Keil <freebsd-listen@fabiankeil.de> Cc: FreeBSD-questions@freebsd.org Subject: Re: 5.4-STABLE panic: kernel trap 12 with interrupts diabled Message-ID: <427A3203.7070405@gmail.com> In-Reply-To: <20050505161315.60c175ff@localhost> References: <20050505161315.60c175ff@localhost>
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This is a multi-part message in MIME format. --------------080407060101010905060900 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 5/5/2005 19:43, Fabian Keil wrote: >Hello list, > >the day before yesterday I experienced my first >panic on 5.4-STABLE. Build and cvsup'ed last >Friday. My system is a ThinkPad R51 > >I did nothing spectacular, after boot I: > >logged in as user >cdrecord -scanbus (which didn't work as I hadn't yet set it suid) >su >chmod +x for cdrecord and readcd (meant was +g ;-) >exit >cdrecord -scanbus (didn't yet work ;-) >su >cdrecord -scanbus (did work) >readcd dev=2,0,0 -factor meshpoints=100 f=./file >exit > >Then I moved the laptop and plugged in the AC/DC adapter. > >whoami brought me: > >Kernel trap 12 with interrupts disabled >Fatal trap 12: page fault while in kernel mode >fault virtual address = 0xa94d06c >fault code = supervisor read, page not present >instruction pointer = 0x8:0xc053cbe5 >stack pointer = 0x10:0xe669f98c >frame pointer = 0x10:0xe669f990 >code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, def32 1, gran 1 >processor eflags = resume, IOPL = 0 >current process = 601 (whoami) >trap number = 12 >panic: page fault > >I saved the dump manually with savecore and then tried >to follow: ><http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/advanced.html#KERNEL-PANIC-TROUBLESHOOTING>; > >fk@r51 ~ $nm -n /boot/kernel/kernel | grep c053cb >c053cb4c T init_turnstiles >c053cbc9 t init_turnstile0 >c053cbd8 t turnstile_setowner > >My kernel contains "makeoptions DEBUG=-g", however >I don't have the file /sys/compile/KERNELCONFIG/kernel.debug >and thus wasn't able to do >% gdb -k /sys/compile/KERNELCONFIG/kernel.debug /var/crash/vmcore.0 > >The next best thing seemed to be the -c option, no luck either. > >fk@r51 ~ $gdb -c vmcore.0 >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". >"/usr/home/fk/vmcore.0" is not a core dump: File format not recognized >(gdb) > >fk@r51 ~ $cat info.0 >Dump header from device /dev/ad0s3b > Architecture: i386 > Architecture Version: 16777216 > Dump Length: 536215552B (511 MB) > Blocksize: 512 > Dumptime: Tue May 3 20:18:11 2005 > Hostname: r51.local > Magic: FreeBSD Kernel Dump > Version String: FreeBSD 5.4-STABLE #6: Sat Apr 30 14:57:04 CEST 2005 > fk@r51.local:/usr/obj/usr/src/sys/THINKPAD > Panic String: page fault > Dump Parity: 1084811848 > Bounds: 0 > Dump Status: good > >The kernel was build "the new way". >I was not able to reproduce the panic. > >Is there anything else I can do? > >Regards >Fabian > > It would be great to have a look at the core. Can you put it up somewhere on the WEB? Also if you are not running a GENERIC kernel then let us have a look at the config file. Regards S. --------------080407060101010905060900--
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