Hello.

Have recently begin seeing spurious crashes on a cpl of boxes. Fault is 
very intermittent but
seems consistent that only machines with lots of either disk i/o or 
network i/o is affected and
that the oops seem always to be "in interrupt". Will try to capture a 
crash on all different boxes,
however it is very intermittent the fault shows itself and those are 
running production systems
so can only try and be ready for the next crash. However, I have setup 
one box that I can trigger
oopses within a cpl of hours of disk trashing, and this is data from one 
crash:

Kernel: 2.6.1
System: Debian Woody with neccessary packages for 2.6.x
GCC:  gcc version 2.95.4 20011002 (Debian prerelease)
Hardware: Dual AMD MP2200+, AMD760 chipset, Adaptec aacraid

/Roger

-----------------
Unable to handle kernel paging request at virtual address 00100104
 printing eip:
c036c5f9
*pde = 00000000
Oops: 0002 [#1]
CPU:    0
EIP:    0060:[<c036c5f9>]    Not tainted
EFLAGS: 00010046
EIP is at aac_response_normal+0xb9/0x210
eax: 00100100   ebx: f7c09200   ecx: f7cf14bc   edx: 00200200
esi: f7cf1488   edi: 00000001   ebp: 00000082   esp: c05abf28
ds: 007b   es: 007b   ss: 0068
Process swapper (pid: 0, threadinfo=c05aa000 task=c050abe0)
Stack: f7d319d0 24000001 00000000 00000011 c05abf44 00000000 f7d319d0 
f7fa2100
       c036c9b2 f7d2ed80 f7d6a7e0 c010b101 00000011 f7d319d0 c05abfa0 
c05aa000
       c05a0080 c05aa000 c05abf98 c010b4a6 00000011 c05abfa0 f7d6a7e0 
c05aa000
Call Trace:
 [<c036c9b2>] aac_rx_intr+0x82/0xd0
 [<c010b101>] handle_IRQ_event+0x31/0x60
 [<c010b4a6>] do_IRQ+0xc6/0x180
 [<c0105000>] _stext+0x0/0x60
 [<c0109b6c>] common_interrupt+0x18/0x20
 [<c0105000>] _stext+0x0/0x60
 [<c0107059>] default_idle+0x29/0x40
 [<c01070f6>] cpu_idle+0x36/0x50
 [<c0105055>] _stext+0x55/0x60
 [<c05ac820>] start_kernel+0x160/0x170

Code: 89 50 04 89 02 c7 46 34 00 01 10 00 c7 41 04 00 02 20 00 8b
 <0>Kernel panic: Fatal exception in interrupt
In interrupt handler - not syncing

..........
from System map:
-------
c036c0a0 T fib_complete
c036c0f0 T aac_printf
c036c150 t aac_handle_aif
c036c170 T aac_command_thread
c036c4c3 t .text.lock.commsup
c036c540 T aac_response_normal
c036c750 T aac_command_normal
c036c8da t .text.lock.dpcsup
c036c930 t aac_rx_intr
c036ca00 t aac_rx_enable_interrupt
c036ca40 t aac_rx_disable_interrupt
c036ca80 t rx_sync_cmd
c036cbb0 t aac_rx_interrupt_adapter
c036cbd0 t aac_rx_notify_adapter
c036cc50 t aac_rx_start_adapter
c036ccc0 T aac_rx_init