From owner-freebsd-bugs@FreeBSD.ORG Thu Jun 18 21:38:21 2009 Return-Path: Delivered-To: freebsd-bugs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E9DF61065678 for ; Thu, 18 Jun 2009 21:38:21 +0000 (UTC) (envelope-from adamk@voicenet.com) Received: from QMTA09.westchester.pa.mail.comcast.net (qmta09.westchester.pa.mail.comcast.net [76.96.62.96]) by mx1.freebsd.org (Postfix) with ESMTP id 926748FC17 for ; Thu, 18 Jun 2009 21:38:21 +0000 (UTC) (envelope-from adamk@voicenet.com) Received: from OMTA06.westchester.pa.mail.comcast.net ([76.96.62.51]) by QMTA09.westchester.pa.mail.comcast.net with comcast id 5Qto1c00816LCl059ZR6T0; Thu, 18 Jun 2009 21:25:06 +0000 Received: from sorrow.ashke.com ([68.45.151.98]) by OMTA06.westchester.pa.mail.comcast.net with comcast id 5ZR61c00A27dlBY3SZR6LM; Thu, 18 Jun 2009 21:25:06 +0000 Message-ID: <4A3AB0B1.3000006@voicenet.com> Date: Thu, 18 Jun 2009 17:25:05 -0400 From: Adam K Kirchhoff User-Agent: Thunderbird 2.0.0.21 (X11/20090410) MIME-Version: 1.0 To: vwe@FreeBSD.org References: <200906182101.n5IL1jwM095090@freefall.freebsd.org> In-Reply-To: <200906182101.n5IL1jwM095090@freefall.freebsd.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-bugs@FreeBSD.org Subject: Re: kern/135692: [mtx] [witness] blockable sleep lock - kernel panic on 8.0-CURRENT X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Jun 2009 21:38:22 -0000 asf -ks `sysctl -n kern.module_path` kernel.asf worked without any errors. It created /root/kernel.asf: [ root@sorrow - ~ ]: ls -l /root/kernel.asf -rw-r--r-- 1 root wheel 1067 Jun 18 17:13 /root/kernel.asf But when I try to add it in kgdb, this is what I get: (kgdb) add-symbol-file /root/kernel.asf add symbol table from file "/root/kernel.asf" at (y or n) y "/root/kernel.asf": can't read symbols: File format not recognized. However, I got the gist of things and simply copied and pasted each line of the kernel.asf file into kgdb. It adds the symbols for each module without any errors. 'bt full' however, only returns a few lines: Here's the full output from kgdb: [ root@sorrow - ~ ]: kgdb /boot/kernel/kernel /var/crash/vmcore.7 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"... Unread portion of the kernel message buffer: panic: blockable sleep lock (sleep mutex) 32 @ /usr/src/sys/vm/uma_core.c:1990 cpuid = 2 KDB: enter: panic Uptime: 1h57m3s Physical memory: 2029 MB Dumping 252 MB: 237 221 205 189 173 157 141 125 109 93 77 61 45 29 13 Reading symbols from /boot/kernel/linux.ko...Reading symbols from /boot/kernel/linux.ko.symbols...done. done. Loaded symbols for /boot/kernel/linux.ko Reading symbols from /boot/kernel/snd_hda.ko...Reading symbols from /boot/kernel/snd_hda.ko.symbols...done. done. Loaded symbols for /boot/kernel/snd_hda.ko Reading symbols from /boot/kernel/sound.ko...Reading symbols from /boot/kernel/sound.ko.symbols...done. done. Loaded symbols for /boot/kernel/sound.ko Reading symbols from /boot/kernel/accf_http.ko...Reading symbols from /boot/kernel/accf_http.ko.symbols...done. done. Loaded symbols for /boot/kernel/accf_http.ko Reading symbols from /boot/kernel/aio.ko...Reading symbols from /boot/kernel/aio.ko.symbols...done. done. Loaded symbols for /boot/kernel/aio.ko Reading symbols from /boot/modules/kqemu.ko...done. Loaded symbols for /boot/modules/kqemu.ko Reading symbols from /boot/kernel/linprocfs.ko...Reading symbols from /boot/kernel/linprocfs.ko.symbols...done. done. Loaded symbols for /boot/kernel/linprocfs.ko Reading symbols from /boot/kernel/smbfs.ko...Reading symbols from /boot/kernel/smbfs.ko.symbols...done. done. Loaded symbols for /boot/kernel/smbfs.ko Reading symbols from /boot/kernel/libiconv.ko...Reading symbols from /boot/kernel/libiconv.ko.symbols...done. done. Loaded symbols for /boot/kernel/libiconv.ko Reading symbols from /boot/kernel/libmchain.ko...Reading symbols from /boot/kernel/libmchain.ko.symbols...done. done. Loaded symbols for /boot/kernel/libmchain.ko Reading symbols from /boot/kernel/radeon.ko...Reading symbols from /boot/kernel/radeon.ko.symbols...done. done. Loaded symbols for /boot/kernel/radeon.ko Reading symbols from /boot/kernel/drm.ko...Reading symbols from /boot/kernel/drm.ko.symbols...done. done. Loaded symbols for /boot/kernel/drm.ko Reading symbols from /boot/modules/vboxdrv.ko...done. Loaded symbols for /boot/modules/vboxdrv.ko #0 doadump () at pcpu.h:246 246 pcpu.h: No such file or directory. in pcpu.h (kgdb) add-symbol-file /boot/kernel/linux.ko.symbols 0xc10f2a90 -s .data 0xc110c000 -s .bss 0xc110ed54 add symbol table from file "/boot/kernel/linux.ko.symbols" at .text_addr = 0xc10f2a90 .data_addr = 0xc110c000 .bss_addr = 0xc110ed54 (y or n) y Reading symbols from /boot/kernel/linux.ko.symbols...done. (kgdb) add-symbol-file /boot/kernel/snd_hda.ko.symbols 0xc111c740 -s .data 0xc112fb20 -s .bss 0xc112ff3c add symbol table from file "/boot/kernel/snd_hda.ko.symbols" at .text_addr = 0xc111c740 .data_addr = 0xc112fb20 .bss_addr = 0xc112ff3c (y or n) y Reading symbols from /boot/kernel/snd_hda.ko.symbols...done. (kgdb) add-symbol-file /boot/kernel/sound.ko.symbols 0xc1148fb0 -s .data 0xc117f000 -s .bss 0xc1189a20 add symbol table from file "/boot/kernel/sound.ko.symbols" at .text_addr = 0xc1148fb0 .data_addr = 0xc117f000 .bss_addr = 0xc1189a20 (y or n) y Reading symbols from /boot/kernel/sound.ko.symbols...done. (kgdb) add-symbol-file /boot/kernel/accf_http.ko.symbols 0xc11956b0 -s .data 0xc1196ca0 -s .bss 0xc1196e24 add symbol table from file "/boot/kernel/accf_http.ko.symbols" at .text_addr = 0xc11956b0 .data_addr = 0xc1196ca0 .bss_addr = 0xc1196e24 (y or n) y Reading symbols from /boot/kernel/accf_http.ko.symbols...done. (kgdb) add-symbol-file /boot/kernel/linprocfs.ko.symbols 0xc5c9d9f0 -s .data 0xc5ca2480 -s .bss 0xc5ca2740 add symbol table from file "/boot/kernel/linprocfs.ko.symbols" at .text_addr = 0xc5c9d9f0 .data_addr = 0xc5ca2480 .bss_addr = 0xc5ca2740 (y or n) y Reading symbols from /boot/kernel/linprocfs.ko.symbols...done. (kgdb) add-symbol-file /boot/kernel/smbfs.ko.symbols 0xc5e9d170 -s .data 0xc5eb43c0 -s .bss 0xc5eb4de0 add symbol table from file "/boot/kernel/smbfs.ko.symbols" at .text_addr = 0xc5e9d170 .data_addr = 0xc5eb43c0 .bss_addr = 0xc5eb4de0 (y or n) y Reading symbols from /boot/kernel/smbfs.ko.symbols...done. (kgdb) add-symbol-file /boot/kernel/libiconv.ko.symbols 0xc5eb6250 -s .data 0xc5eb87e0 -s .bss 0xc5eb8c4c add symbol table from file "/boot/kernel/libiconv.ko.symbols" at .text_addr = 0xc5eb6250 .data_addr = 0xc5eb87e0 .bss_addr = 0xc5eb8c4c (y or n) y Reading symbols from /boot/kernel/libiconv.ko.symbols...done. (kgdb) add-symbol-file /boot/kernel/libmchain.ko.symbols 0xc5f3c640 -s .data 0xc5f3e410 -s .bss 0xc5f3e4a8 add symbol table from file "/boot/kernel/libmchain.ko.symbols" at .text_addr = 0xc5f3c640 .data_addr = 0xc5f3e410 .bss_addr = 0xc5f3e4a8 (y or n) y Reading symbols from /boot/kernel/libmchain.ko.symbols...done. (kgdb) add-symbol-file /boot/modules/vboxdrv.ko 0xc6072b30 -s .data 0xc608d000 -s .bss 0xc608eb00 add symbol table from file "/boot/modules/vboxdrv.ko" at .text_addr = 0xc6072b30 .data_addr = 0xc608d000 .bss_addr = 0xc608eb00 (y or n) y Reading symbols from /boot/modules/vboxdrv.ko...done. (kgdb) add-symbol-file /boot/kernel/radeon.ko.symbols 0xc6563b60 -s .data 0xc65b6440 -s .bss 0xc65b7d20 add symbol table from file "/boot/kernel/radeon.ko.symbols" at .text_addr = 0xc6563b60 .data_addr = 0xc65b6440 .bss_addr = 0xc65b7d20 (y or n) y Reading symbols from /boot/kernel/radeon.ko.symbols...done. (kgdb) add-symbol-file /boot/kernel/drm.ko.symbols 0xc65c08b0 -s .data 0xc65ce580 -s .bss 0xc65cf6a4 add symbol table from file "/boot/kernel/drm.ko.symbols" at .text_addr = 0xc65c08b0 .data_addr = 0xc65ce580 .bss_addr = 0xc65cf6a4 (y or n) y Reading symbols from /boot/kernel/drm.ko.symbols...done. (kgdb) bt full #0 doadump () at pcpu.h:246 No locals. #1 0xc0870a8e in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:419 _giantcnt = Variable "_giantcnt" is not available. So 'bt full' only gives me the giantcnt error. Just a regular 'bt' gives me the same output I posted in my pr. Am I doing something wrong? I can possibly try a -CURRENT kernel without invariants in the next day or two, if you think that will make a difference, or just want to confirm your thought. Adam