Date: Wed, 25 Jun 2003 22:00:09 +0800 From: Kuang-che Wu <kcwu@kcwu.homeip.net> To: freebsd-current@freebsd.org Subject: fatal trap 12 during boot, sys/dev/pci/pci.c Message-ID: <20030625140009.GA23464@kcwu.homeip.net>
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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>
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.
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