Broken SCSI code in the BK tree (was: 2.5.59-mm8)

Martin J. Bligh
2003-02-04T22:15:31Z

> "Martin J. Bligh" <mbligh@aracnet.com> wrote:
>>
>> > http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.59/2.5.59-mm8/
>>
>> Booted to login prompt, then immediately oopsed
>> (16-way NUMA-Q, mm6 worked fine). At a wild guess, I'd suspect
>> irq_balance stuff.
>>
>
> There are a lot of scsi updates in Linus's tree. Can you please
> test just
>
> http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.59/2.5.59-mm8/broken-out/linus.patch

Yup, the SCSI code in Linus' tree has broken since 2.5.59.
I reproduced this on my 4-way SMP machine (panic from that below),
so it's not just NUMA-Q wierdness ;-)

M.

Unable to handle kernel NULL pointer dereference at virtual address 0000013c
printing eip:
c01c1986
*pde = 00000000
Oops: 0002
CPU: 3
EIP: 0060:[<c01c1986>] Not tainted
EFLAGS: 00010046
EIP is at isp1020_intr_handler+0x1e6/0x290
eax: 00000000 ebx: f7c42080 ecx: 00000000 edx: 00000054
esi: 00000002 edi: 00000013 ebp: 00000000 esp: f7f97efc
ds: 007b es: 007b ss: 0068
Process swapper (pid: 0, threadinfo=f7f96000 task=f7f9d240)
Stack: f7c42080 f7c52800 00000002 00000013 f7f97f80 00000003 00000003 f7c5289c
f7c52800 c01c1791 00000013 f7c52800 f7f97f80 f7ffe1e0 24000001 c010a815
00000013 f7c52800 f7f97f80 c028fa60 00000260 00000013 f7f97f78 c010a9e6
Call Trace:
[<c01c1791>] do_isp1020_intr_handler+0x25/0x34
[<c010a815>] handle_IRQ_event+0x29/0x4c
[<c010a9e6>] do_IRQ+0x96/0x100
[<c0106ca0>] default_idle+0x0/0x34
[<c01094a8>] common_interrupt+0x18/0x20
[<c0106ca0>] default_idle+0x0/0x34
[<c0106cc9>] default_idle+0x29/0x34
[<c0106d53>] cpu_idle+0x37/0x48
[<c0119d21>] printk+0x149/0x160

Code: 89 85 3c 01 00 00 83 c4 04 eb 0a c7 85 3c 01 00 00 00 00 07
<0>Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing