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User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051111 Firefox/1.5

Description of problem:
Under load, we get the following error on the console running a DB2 Database application:

                            NMI Watchdog detected LOCKUP on CPU2CPU 2 
Modules linked in: nfsd exportfs md5 ipv6 autofs4 i2c_dev i2c_core nfs lockd sunrpc pcmcia yenta_socket rsrc_nonstatic pcmcia_core video button battery d
Pid: 4842, comm: db2sysc Not tainted 2.6.12-1.1381_FC3smp
RIP: 0010:[<ffffffff8013e198>] <ffffffff8013e198>{del_timer_sync+111}
RSP: 0018:ffff810126c6feb8  EFLAGS: 00000046
RAX: ffff8100052b7960 RBX: ffff81012a313c30 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000003 RDI: 000000000000000f
RBP: 0000000000000000 R08: ffffffff80523a00 R09: 0000000000000020
R10: 0000000043d16790 R11: 0000000000000246 R12: ffff810126c6ff18
R13: 0000000000000001 R14: 0000000000000000 R15: 00007fffff9453c0
FS:  00002aaaae7841c0(0000) GS:ffffffff804e1400(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00000002252f6004 CR3: 00000001272de000 CR4: 00000000000006e0
Process db2sysc (pid: 4842, threadinfo ffff810126c6e000, task ffff810127ecf7c0)
Stack: 0000000000000000 ffff810126c6ff38 ffff810127ecf7c0 ffffffff80139d0a 
       ffff810094138840 ffff810127ecf7c0 00007fffff945140 ffff810126c6ff38 
       0000000000000000 00007fffff945528 
Call Trace:<ffffffff80139d0a>{do_setitimer+131} <ffffffff8013a14a>{sys_setitimer+93}
       <ffffffff8010e7be>{system_call+126} 

[...]  Please see attachment for complete dump to console.


Version-Release number of selected component (if applicable):
Kernel 2.6.12-1.1381_FC3smp on an x86_64

How reproducible:
Sometimes

Steps to Reproduce:
1. Restart the system, let it run for a while with load 
2.
3.
  

Actual Results:  The error itself is repeatable, it just can't seem to be forced to happen at will.  Sometimes it will run for a day sometimes for just half an hour.

Expected Results:  The machine should have not locked up with a kernel panic.

Additional info:

Please see attachement for complete console dump.