[ thread pid 11 tid 100056 ]
Stopped at      cpu_search_lowest+0x3a4:        stdu    r1, r1, 0xfef0
db> vtt
No such command; use "help" to list available commands
db> bt
Tracing pid 11 tid 100056 td 0xc0000000808d3580
0xc0080000048b7140: at sched_wakeup+0x98
0xc0080000048b7170: at setrunnable+0xb8
0xc0080000048b71e0: at sglist_slice+0x494
0xc0080000048b7220: at sleepq_lookup+0x11c
0xc0080000048b7270: at itimer_fire+0x1a28
0xc0080000048b7330: at callout_process+0x210
0xc0080000048b73d0: at uart_cpu_getdev+0x17c8
0xc0080000048b7440: at uart_cpu_getdev+0x1fe0
0xc0080000048b74e0: at decr_intr+0x108
0xc0080000048b7510: at delayed_interrupt+0xd4
0xc0080000048b7580: at __intr_restore_soft+0x9c
0xc0080000048b75c0: at spinlock_exit+0xac
0xc0080000048b75f0: at critical_exit_preempt+0xb4
0xc0080000048b7620: at __intr_restore_soft+0xd4
0xc0080000048b7660: at spinlock_exit+0xac
0xc0080000048b7690: at critical_exit_preempt+0xb4
0xc0080000048b76c0: at __intr_restore_soft+0xd4
0xc0080000048b7700: at spinlock_exit+0xac
0xc0080000048b7730: at critical_exit_preempt+0xb4
db> continue
[ thread pid 11 tid 100056 ]
Stopped at      cpu_search_lowest+0x3a4:        stdu    r1, r1, 0xfef0
db> continue
[ thread pid 11 tid 100056 ]
Stopped at      cpu_search_lowest+0x3a4:        stdu    r1, r1, 0xfef0
db> continue
[ thread pid 11 tid 100056 ]
Stopped at      cpu_search_lowest+0x3a4:        stdu    r1, r1, 0xfef0
db> continue
[ thread pid 11 tid 100056 ]
Stopped at      cpu_search_lowest+0x3a4:        stdu    r1, r1, 0xfef0
db>