NMI watchdog detected lockup

[Randy.Dunlap]

I'm seeing this often during a kernel build on AIC79xx.
I did one kernel build on SATA without seeing this.
This is on a dual-Opteron IBM Workstation A with
2 GB RAM, SATA, & SCSI.

Does this show anything?  (not to me)
Maybe the buggy code is on CPU1 and its registers aren't
captured.


NMI Watchdog detected LOCKUP on CPU0, registers:
CPU 0
Modules linked in: aic79xx usbserial aic7xxx ohci1394 ieee1394
Pid: 0, comm: swapper Not tainted 2.6.9-rc4-bk3
RIP: 0010:[<ffffffff8010f5f0>] <ffffffff8010f5f0>{default_idle+32}
RSP: 0018:ffffffff805e3fb8  EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000018
RDX: ffffffff8010f5d0 RSI: ffffffff80472b80 RDI: 0000010001e11b20
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff80562b60 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000002a9670fd40(0000) GS:ffffffff805de880(0000) 
knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000002a9568a2c0 CR3: 0000000000101000 CR4: 00000000000006e0
Process swapper (pid: 0, threadinfo ffffffff805e2000, task 
ffffffff80472b80)
Stack: ffffffff8010f9fd 0000000000000000 ffffffff805e56e5 0000000000000000
       ffffffff8055fc60 0000000000000800 ffffffff805e51e0 
0000000000000404
       0000000000000000
Call Trace:<ffffffff8010f9fd>{cpu_idle+29} 
<ffffffff805e56e5>{start_kernel+421}
       <ffffffff805e51e0>{_sinittext+480}

Code: c3 fb f3 c3 66 66 66 90 66 66 66 90 66 66 66 90 48 83 ec 38
console shuts up ...
 NMI Watchdog detected LOCKUP on CPU1, registers:


--
~Randy
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