Date: Wed, 25 Jun 2003 22:40:44 +0800 (CST) From: Kuang-che Wu <kcwu@kcwu.homeip.net> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/53725: fatal trap 12 during boot, sys/dev/pci/pci.c Message-ID: <200306251440.h5PEeibv043592@kcwu.homeip.net> Resent-Message-ID: <200306251450.h5PEo73F076811@freefall.freebsd.org>
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>Number: 53725 >Category: kern >Synopsis: fatal trap 12 during boot, sys/dev/pci/pci.c >Confidential: no >Severity: critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Jun 25 07:50:07 PDT 2003 >Closed-Date: >Last-Modified: >Originator: Kuang-che Wu >Release: FreeBSD 5.1-CURRENT i386 >Organization: >Environment: System: FreeBSD kcwu.homeip.net 5.1-CURRENT FreeBSD 5.1-CURRENT #4: Mon Jun 23 23:40:40 CST 2003 root@kcwu.homeip.net:/files/usr.obj/usr/src/sys/DESKTOP i386 >Description: I upgrade my world to latest current yesterday. And it panic on my notebook during boot, around pci messages. I use GENERIC config for this testing. And I unset acpi_load, otherwise it will hang during boot. Here is the panic message. <cut> Pentium Pro MTRR support enabled npx0: <math processor> on motherboard npx0: INT 16 interface pcibios: BIOS version 2.10 Using $PIR table, 6 entries at 0xc00fe840 pcib0: <Intel 82443MX host to PCI bridge> at pcibus 0 on motherboard pci0: <PCI bus> on pcib0 Fatal trap 12: page fault while in kernel mode fault virtual address = 0xeb813 fault code = supervisor read, page not present instruction pointer = 0x8:0xc00eb714 stack pointer = 0x10:0xc06fda3c frame pointer = 0x10:0xc06fda3c 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 = 0 (swapper) kernel: type 12 trap, code=0 Stopped at 0xc00eb714: cmpb %cs:0x1(%esi),%bl db> tr kernbase(c0d31580,c04a499d,c06fdad4,50d,38) at 0xc00eb714 _end(cb9d08c4,c4f6ec8b,81067540,ffffe5,e67f2400) at 0xc06fdaa8 db> </cut> And what I got from gdb: <cut> /usr/obj/usr/src/sys/GENERIC# gdb -q -k kernel.debug (kgdb) l *0xc00eb714 No source file for address 0xc00eb714. </cut> After binary search, I found the difference between panic or not is reversion 1.215 and 1.216 of sys/dev/pci/pci.c. Kernel panic all from 1.216 to 1.221 of pci.c. If you want to have more information, please let me know. >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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