[Click] driver crash

[rchertov at purdue.edu]

This is on the 2.4.26 SMP kernel using the latest CVS click SMP build.  The
driver is the e1000-5.x.  I usually get this after I send a high rate of UDP
packets with a 10 byte payload from my own packet generator (user land).  I am
going to try to use the 1.4.3 click as it seemed to crash less frequently.


This is the script that I run on the node that crashes.  The machine runs on 2
Xenon 2.8 Ghz CPUs with hyperthreading (linux reports 4 cpus) and the NICs are
pci-66 Intel Pro 1000

PollDevice(eth1)
        -> Queue(200)
        -> ToDevice(eth2);
 
PollDevice(eth2)
        -> Queue(200)
        -> ToDevice(eth1);



Unable to handle kernel NULL pointer dereference at virtual address 00000080
 printing eip:
f8829281
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[<f8829281>]    Not tainted
EFLAGS: 00010246
eax: 00000002   ebx: 00000047   ecx: 00000000   edx: 00000040
esi: f708d470   edi: 00000000   ebp: f6869e10   esp: f6869dd8
ds: 0018   es: 0018   ss: 0018
Process kclick (pid: 975, stackpage=f6869000)
Stack: c0244a14 00035846 00000282 00000000 c030d21c 00000001 00000040 00000000
       f88ff58c f7731800 f7731aa8 00000000 f77319a0 00000040 f6869e40 f8828daf
       f77319a0 f6869e30 00000040 00000287 00001b30 00000000 00000001 f77318c4
Call Trace:    [<c0244a14>] [<f8828daf>] [<c024a066>] [<c0125d19>] [<c010af19>]
  [<c010da78>] [<f882a3db>] [<f89b45c5>] [<f89b1d89>] [<f89dd862>] [<f89760e0>]
  [<f89d2670>] [<c010752e>] [<f89d25ec>]
                                         
Code: 8b 8f 80 00 00 00 83 ea 04 85 c9 8b 47 10 0f 85 82 02 00 00
 <0>Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing


I don't suppose there is any quick magic fix laying about? :)

Roman