Was wondering if someone with a bit more kernel knowledge could take a look at this output from /var/log/messages. This is an SLES-8 machine one a dell 2600 with dual Pentium Zeon's (Hyperthreading is on as you can see by the CPU#3).
Here is the interesting part, after this occured the machine was still usable, but had the performace equivelant of an 8086 :(. (it took about 5 minutes just to log in from the console.
Thanks,
Ron
May 19 14:28:56 sciremc-CADOPS kernel: Unable to handle kernel paging request at virtual address 79726173 May 19 14:28:56 sciremc-CADOPS kernel: printing eip: May 19 14:28:56 sciremc-CADOPS kernel: c029ce60 May 19 14:28:56 sciremc-CADOPS kernel: *pde = 00000000 May 19 14:28:56 sciremc-CADOPS kernel: Oops: 0000 2.4.19-64GB-SMP #1 SMP Wed Apr 16 12:42:15 UTC 2003 May 19 14:28:56 sciremc-CADOPS kernel: CPU: 3 May 19 14:28:56 sciremc-CADOPS kernel: EIP: 0010:[tcp_v4_rcv+400/1392] Not tainted May 19 14:28:56 sciremc-CADOPS kernel: EIP: 0010:[<c029ce60>] Not tainted May 19 14:28:56 sciremc-CADOPS kernel: EFLAGS: 00010202 May 19 14:28:56 sciremc-CADOPS kernel: eax: 79726173 ebx: 9c1000c2 ecx: 9c1001c6 edx: c2ebb300 May 19 14:28:56 sciremc-CADOPS kernel: esi: 071000c2 edi: ce159300 ebp: ec14a044 esp: c281fdb8 May 19 14:28:56 sciremc-CADOPS kernel: ds: 0018 es: 0018 ss: 0018 May 19 14:28:56 sciremc-CADOPS kernel: Process swapper (pid: 0, stackpage=c281f000) May 19 14:28:56 sciremc-CADOPS kernel: Stack: 00000000 c281fe34 c0282b90 c0490248 00000000 13ed0104 00000002 000013ed May 19 14:28:56 sciremc-CADOPS kernel: 00000000 00000006 ce159300 ec14a030 c0282cde ce159300 c281fe54 c382c000 May 19 14:28:56 sciremc-CADOPS kernel: 00000000 00000006 00000000 00000001 00000000 c0282b90 c0272307 ce159300 May 19 14:28:56 sciremc-CADOPS kernel: Call Trace: [ip_local_deliver_finish+0/368] [ip_local_deliver_finish+334/368] [ip_local_deliver_finish+0/368] [nf_hook_slow+263/480] [ip_local_deliver_finish+0/368] May 19 14:28:56 sciremc-CADOPS kernel: Call Trace: [<c0282b90>] [<c0282cde>] [<c0282b90>] [<c0272307>] [<c0282b90>] May 19 14:28:56 sciremc-CADOPS kernel: [ip_local_deliver+83/128] [ip_local_deliver_finish+0/368] [ip_rcv_finish+537/642] [ip_rcv_finish+0/642] [ip_rcv_finish+0/642] [nf_hook_slow+263/480] May 19 14:28:56 sciremc-CADOPS kernel: [<c0282913>] [<c0282b90>] [<c0282f19>] [<c0282d00>] [<c0282d00>] [<c0272307>] May 19 14:28:56 sciremc-CADOPS kernel: [ip_rcv_finish+0/642] [ip_rcv+416/592] [ip_rcv_finish+0/642] [net_rx_action+542/880] [do_softirq+217/224] [do_IRQ+251/304] May 19 14:28:56 sciremc-CADOPS kernel: [<c0282d00>] [<c0282ae0>] [<c0282d00>] [<c026a64e>] [<c012d459>] [<c010b66b>] May 19 14:28:56 sciremc-CADOPS kernel: [default_idle+0/80] [call_do_IRQ+5/13] [default_idle+0/80] [default_idle+44/80] [cpu_idle+50/80] [printk+23/32] May 19 14:28:56 sciremc-CADOPS kernel: [<c0107110>] [<c010e2e8>] [<c0107110>] [<c010713c>] [<c01071b2>] [<c0127ff7>] May 19 14:28:56 sciremc-CADOPS kernel: Code: 39 18 0f 84 30 03 00 00 8b 40 10 85 c0 75 f1 f0 ff 02 31 c0 May 19 14:28:56 sciremc-CADOPS kernel: <0>Kernel panic: Aiee, killing interrupt handler! May 19 14:28:56 sciremc-CADOPS kernel: In interrupt handler - not syncing May 19 14:28:56 sciremc-CADOPS kernel: klogd 1.4.1, ---------- state change ---------- May 19 14:28:56 sciremc-CADOPS kernel: Inspecting /boot/System.map-2.4.19-64GB-SMP May 19 14:28:56 sciremc-CADOPS kernel: Loaded 21658 symbols from /boot/System.map-2.4.19-64GB-SMP. May 19 14:28:56 sciremc-CADOPS kernel: Symbols match kernel version 2.4.19. May 19 14:28:56 sciremc-CADOPS kernel: Loaded 867 symbols from 27 modules.