libreport version: 2.0.6
abrt_version:   2.0.4.981
cmdline:        initrd=initrd0.img root=live:UUID=40AC-A730 rootfstype=vfat rw liveimg overlay=UUID=40AC-A730 quiet  rhgb rd.luks=0 rd.md=0 rd.dm=0  BOOT_IMAGE=vmlinuz0 
comment:        Booted to live USB and this warning showed up. I have no idea what caused it unless it having more then one usb drive connected to the system caused it.
kernel:         undefined
reason:         WARNING: at kernel/watchdog.c:241 watchdog_overflow_callback+0x9b/0xa6()
smolt_data:     Unable to save UUID to /etc/smolt/hw-uuid.  Please run once as root.
time:           Thu Feb 16 06:08:35 2012

backtrace:
:WARNING: at kernel/watchdog.c:241 watchdog_overflow_callback+0x9b/0xa6()
:Hardware name: Satellite L655
:Watchdog detected hard LOCKUP on cpu 1
:Modules linked in:
:Pid: 0, comm: kworker/0:0 Not tainted 3.1.0-7.fc16.x86_64 #1
:Call Trace:
: <NMI>  [<ffffffff81057a4e>] warn_slowpath_common+0x83/0x9b
: [<ffffffff81057b09>] warn_slowpath_fmt+0x46/0x48
: [<ffffffff810b00b5>] watchdog_overflow_callback+0x9b/0xa6
: [<ffffffff810d9422>] __perf_event_overflow+0x100/0x17f
: [<ffffffff8107834b>] ? local_clock+0x27/0x2f
: [<ffffffff810d7814>] ? perf_event_update_userpage+0xf/0xa3
: [<ffffffff810d9a89>] perf_event_overflow+0x14/0x16
: [<ffffffff8101ec91>] intel_pmu_handle_irq+0x3a7/0x407
: [<ffffffff814b7397>] perf_event_nmi_handler+0x43/0x8e
: [<ffffffff814b9053>] notifier_call_chain+0x37/0x63
: [<ffffffff814b90ab>] atomic_notifier_call_chain+0x18/0x1a
: [<ffffffff814b90db>] notify_die+0x2e/0x30
: [<ffffffff814b6954>] do_nmi+0x6d/0x217
: [<ffffffff814b6670>] nmi+0x20/0x30
: [<ffffffff81015d21>] ? mwait_idle+0x87/0xb4
: <<EOE>>  [<ffffffff8100e2ed>] cpu_idle+0xae/0xe8
: [<ffffffff814a406c>] start_secondary+0x23f/0x241