Hi, I just got an IBM ThinkPad T42 (model 2378FVU) with
Centrino/Pentium M 735 and a Radeon 9600.  I'm running 2.6.9-rc3 (with
ipw2200 0.9 wireless drivers) and I've experienced several hard
lockups over the past few days.

The system seems to be completely unresponsive to keyboard and
network, and even "nmi_watchdog=2" didn't produce anything.  I'm not
sure what triggers the lockup -- I've had them happen while the system
was idle running an X screensaver, and also while I've been on the
console (non-X) doing nothing but typing through an ssh connection. 
Generally it takes a couple of hours for the lockup to happen.

Has anyone seen anything similar?  Any ideas on how to go about debugging this?

I'm including my modules and /proc/interrupts, and my .config is attached.

Thanks,
  Roland

           CPU0
  0:     390269          XT-PIC  timer
  1:       2320          XT-PIC  i8042
  2:          0          XT-PIC  cascade
  8:          4          XT-PIC  rtc
  9:        212          XT-PIC  acpi
 11:        828          XT-PIC  ehci_hcd, uhci_hcd, uhci_hcd,
uhci_hcd, Intel 82801DB-ICH4, yenta, yenta, ipw2200
 12:      18184          XT-PIC  i8042
 14:       7395          XT-PIC  ide0
 15:       3511          XT-PIC  ide1
NMI:         40
LOC:     106169
ERR:          0
MIS:          0


Module                  Size  Used by
ds                     17988  4
parport_pc             34112  1
lp                     10500  0
parport                39624  2 parport_pc,lp
thermal                12816  0
fan                     3852  0
button                  6552  0
ac                      4748  0
battery                 9228  0
ipv6                  250496  14
ipw2200               104172  0
ieee80211              21060  1 ipw2200
ieee80211_crypt         5700  1 ieee80211
yenta_socket           20032  0
pcmcia_core            61388  2 ds,yenta_socket
snd_intel8x0           32296  3
snd_ac97_codec         66960  1 snd_intel8x0
snd_pcm_oss            51368  0
snd_mixer_oss          18880  2 snd_pcm_oss
snd_pcm                94628  3 snd_intel8x0,snd_pcm_oss
snd_timer              24836  1 snd_pcm
snd_page_alloc          9800  2 snd_intel8x0,snd_pcm
snd_mpu401_uart         7424  1 snd_intel8x0
snd_rawmidi            24192  1 snd_mpu401_uart
snd_seq_device          7944  1 snd_rawmidi
snd                    53220  12
snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
intel_agp              21088  1
agpgart                33128  1 intel_agp
e1000                  83204  0