rendered paste body-bash-3.2# cat /proc/latency_trace
preemption latency trace v1.1.5 on 2.6.23.1-rt5frodantest
--------------------------------------------------------------------
latency: 3462 us, #4/4, CPU#0 | (M:rt VP:0, KP:0, SP:1 HP:1)
-----------------
| task: softirq-timer/0-5 (uid:0 nice:-5 policy:1 rt_prio:50)
-----------------
_------=> CPU#
/ _-----=> irqs-off
| / _----=> need-resched
|| / _---=> hardirq/softirq
||| / _--=> preempt-depth
|||| /
||||| delay
cmd pid ||||| time | caller
\ / ||||| \ | /
softirq--5 0D... 8us!: common_interrupt+0x24/0x40 (<0>)
softirq--5 0D... 3432us+: restore_nocheck+0x12/0x15 (<0>)
softirq--5 0D... 3448us : trace_hardirqs_on+0xb1/0xd0 (restore_nocheck+0x12/0x15)