Date: Thu, 03 Apr 2003 14:42:13 +0100 From: Mark Dixon <mark@markdnet.demon.co.uk> To: freebsd-current@freebsd.org Subject: Re: Kernel panic - never had one before, what do I do? Message-ID: <3E8C3A35.6060704@markdnet.demon.co.uk>
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>I just got a panic. As I have never had one before, I don't know what to
>do. It's on another system so I don't have to reboot immediately (that
>would solve the problem temporarily, wouldn't it?) if someone would give
>me some advice, I could try to help debug it; however, as I'm not a
>coder (not a real one anyway), I don't know how much help I would be.
>
<me to>
I've got a nasty one booting with today's current. Think I vaguely
recall seeing it before, so sorry if this is known. I'm gathering this
data using the pen 'n paper approach, so if its not exactly right, you
knwo why:
ad4 READ Command timeout tag=0 serv=0 -resetting
ata2: resetting devices
Fatal trap 12: page fault while in kernel mode
fault virtual address: 0x0
fault code: supervisor read, page not present
instr pointer: 0x8:0xC0160441 [note this is a
custom kernel]
stack pointer: 0x10:0xd1d6fc84
frame pointer: 0x10:0xd1d6fc8c
code segment: base 0x0 limit 0xfffff type 0x1b
DPL 0, pres 1, defy2 1, gron 1
processor effage: interrupt enabled, rswen, IOPC=0
current process = 12 (swi7: tty:sio check)
kernel: type 12 trap, code = 0
stopped at reinit_bus+0xb: movl[something i can't read] 0(%esi), %eaf
db> trace [i saw someone else do this]
reinit_bus(0,2,c11f0c00, d1d6fcbc, c0146462) at reinit_bus+0x0
atapicam_reinit_bus(c11f0c00, 1, c338da80, c3470800, c015732c) at
atapi_cam_reinit_bus+0x13
ata_reinit(c11f0c00, 7, c338da0, d1d6fcf0, c024c071) at
ata_reinit+[something - possibly 0x34c]
[more stuff - losing the will to live at this stage]
Hope that helps somebody, shame i can't read my own writing.
Mark
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