* Cambridge-re1017.nightly
* 2.4.22-1.2096.nptlsmp (and 2.4.22-1.2096.nptl)

Happens repeatably on a variety of test machines.  Sometimes the reboot succeeds
anyway, sometimes not.

Unable to handle kernel NULL pointer dereference at virtual address 00000004
 printing eip:
c0122d93
*pde = 00000000
Oops: 0002
nfs lockd sunrpc parport_pc lp parport ide-cd cdrom autofs e100 microcode
keybdev hid usb-ohci usbcore mousedev input ext3 jbd aic7xxx sd_mod scsi_mod
CPU:    0
EIP:    0060:[<c0122d93>]    Not tainted
EFLAGS: 00010046

EIP is at remove_wait_queue [kernel] 0x23 (2.4.22-1.2096.nptlsmp)
eax: c0380910   ebx: 00000000   ecx: 00000000   edx: dfefffd0
esi: dfefffd8   edi: 00000292   ebp: dfefe000   esp: dfefff34
ds: 0068   es: 0068   ss: 0068
Process kupdated (pid: 9, stackpage=dfeff000)
Stack: 00000001 dfefffd0 dfefe6b4 c01586b0 dfefe6b4 dfefff50 00000000 00000013
       00000000 00000000 00000af0 00000000 bfe7a85c bfe7a7cc d6d01f70 00000000
       00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Call Trace:   [<c01586b0>] kupdate [kernel] 0xe0 (0xdfefff40)
[<c0109f22>] ret_from_fork [kernel] 0x6 (0xdfefffbc)
[<c01585d0>] kupdate [kernel] 0x0 (0xdfefffc4)
[<c01585d0>] kupdate [kernel] 0x0 (0xdfefffe0)
[<c010758d>] kernel_thread_helper [kernel] 0x5 (0xdfeffff0)


Code: 89 59 04 89 0b c7 46 04 00 00 00 00 c7 42 08 00 00 00 00 b2