One of my automated tests failed to boot cleanly.
This is an 4-proc x86_64 server with 8 GB of RAM.
When I repeated the test, it booted and ran successfully.



BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<(null)>] (null)
PGD 0
Oops: 0010 [#1] SMP
last sysfs file: /sys/block/sdb/removable
CPU 3
Modules linked in: snd_seq_dummy tg3(+) libphy snd_seq_oss snd_seq_midi_event snd_seq ses enclosure snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc tpm_tis floppy(+) serio_raw tpm k8temp tpm_bios hwmon pcspkr dm_region_hash dm_log usb_storage lpfc scsi_transport_fc scsi_tgt shpchp cciss uhci_hcd ohci_hcd ehci_hcd

Pid: 2570, comm: udevd Not tainted 2.6.34-rc1 #1 /ProLiant BL685c G1
RIP: 0010:[<0000000000000000>]  [<(null)>] (null)
RSP: 0000:ffff880183b03e98  EFLAGS: 00010246
RAX: ffff88027d94bfd8 RBX: 00000000000000ea RCX: ffff88027d025d40
RDX: ffff880183b03eb0 RSI: dead000000200200 RDI: 0000000000000000
RBP: ffff880183b03ef0 R08: ffff88027d025d40 R09: 0000000000000632
R10: 0000000000000000 R11: 00000000ffffffff R12: ffffffffa0136900
R13: ffff88027f658000 R14: 0000000000000000 R15: 0000000000000100
FS:  00007fe01e9af710(0000) GS:ffff880183b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 000000027ea32000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process udevd (pid: 2570, threadinfo ffff88027d94a000, task ffff88027d025d40)
Stack:
 ffffffff81054e89 0000000000000052 0000000000000000 ffff880183b03eb0
<0> ffff880183b03eb0 ffffffff8101ea60 0000000000000282 0000000000000001
<0> 0000000000000141 0000000000000100 ffffffff81823088 ffff880183b03f40
Call Trace:
 <IRQ>
 [<ffffffff81054e89>] ? run_timer_softirq+0x16d/0x209
 [<ffffffff8101ea60>] ? apic_write+0x11/0x13
 [<ffffffff8104deb5>] __do_softirq+0xe1/0x1b7
 [<ffffffff81009a5c>] call_softirq+0x1c/0x30
 [<ffffffff8100b2b7>] do_softirq+0x46/0x9f
 [<ffffffff8104dfd0>] irq_exit+0x45/0x84
 [<ffffffff8101f442>] smp_apic_timer_interrupt+0x79/0x87
 [<ffffffff81009513>] apic_timer_interrupt+0x13/0x20
 <EOI>
Code:  Bad RIP value.
RIP  [<(null)>] (null)
 RSP <ffff880183b03e98>
CR2: 0000000000000000
---[ end trace 77b6d5c602bfc703 ]---



Full kernel log & config file are attached.

-- 
~Randy