Re: panic: integer divide fault on 6.1

On 9/9/06, Kris Kennaway <kris@xxxxxxxxxxxxxx> wrote:
On Sat, Sep 09, 2006 at 09:02:35PM +0100, Joao Barros wrote:
> On 9/9/06, Max Laier <max@xxxxxxxxxxxxxx> wrote:
> >
> >Can you try to get a dump, trace, or at least figure out which function
> >the IP is refering to?
> >
>
> Well, the problem only occurs when I boot from the disk and the
> installed kernel doesn't have debug support.
> Does 'set dumpdev=' work from the boot loader? I tried some
> combinations with no success.

No.

> I can try and install a 6-STABLE snapshot if there's no way of getting
> the info needed.

You can either try to install a new kernel with DDB support, or follow
the "instruction pointer" method in the developers handbook chapter on
kernel debugging.

I copied a CURRENT kernel from a 200608 snapshot and the problem also
occurs thus I'm adding current@.
My current laptop doesn't have a serial port so I'm copying this by hand:

Fatal trap 18: integer divide fault while in kernel mode
cpuid = 0; apic id = 00
instruction pointer = 0x20:0xc08a1fb7
stack pointer = 0x28:0xc0c20b14
frame pointer = 0x28:0xc0c20b9c
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)
[thread pid 0 tid 0 ]
Stopped at __qdivrem+0x3b: divl %ecx,%eax

db> bt
Tracing pid 0 tid0 td 0xc0a0c818
__qdivrem(37fdfa0,0,0,0,0,...) at __qdivrem+0x3b
__udivdi3(37fdfa0,0,0,0) at __udivdi3+0x16
ata_raid_promise_read_meta(c37a5000,c09f4a80,1,8086,c37a5000,...) at
ata_raid_promise_read_meta+0x9b
ata_raid_read_metadata(c37a5000,c37a5000,c0c20c70,c06b58a4,c37a5000,...)
at ata_raid_metadata+0x2be
ata_raid_subdisk_attach(c37a5000) at ata_raid_subdisk_attach+0x33
device_attach(c37a5000,c37a5180,c37a5000,c36885c0,0,...) at device_attach+0x58
device_probe_and_attach(c37a5200,c37a5200,c08ec9a9,0,c37a5180,...) at
bus_generic_attach+0x16
ad_attach(c37a5200) at ad_attach+0x2c8
device_attach(c37a5200,c095f2d0,c37a5200,0,c368d800,...) at device_attach+0x58
device_probe_and_attach(c37a5200) at device_probe_and_atach+0xe0
bus_generic_attach(c3659080,c3659080,ffffffff,0,c37a5200,...) at
bus_generic_attach+0x16
ata_identify(c3659080) at ata_identify+0x1c8
ata_boot_attach(0xc0a11d80,0,c09212e7,47,...) at ata_boot_attach+0x3e
run_interrupt_drive_config_hooks(0,c1ec00,c1e000,0,c0451065,...) at
run_interrupt_drive_config_hooks+0x43
mi_startup() at mi_startup+0x96
begin() at begin+0x2c

This board has a Promise SATA raid controller and it is disabled in
the BIOS. I even tried disabling it through a jumper but it still
stops.

--
Joao Barros
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