WARNING: at arch/x86/kernel/cpu/perf_event.c:989

[Markus Trippelsdorf]

The following warning is easily reproducible after todays
'perf-urgent-for-mingo' merge by just running "perf top":

------------[ cut here ]------------
WARNING: at arch/x86/kernel/cpu/perf_event.c:989 x86_pmu_start+0xa5/0x100()
Hardware name: System Product Name
Pid: 0, comm: swapper/2 Not tainted 3.3.0-rc2-00068-g24b36da-dirty #22
Call Trace:
 <IRQ>  [<ffffffff81054ba0>] ? warn_slowpath_common+0x60/0xa0
 [<ffffffff8103e1a5>] ? x86_pmu_start+0xa5/0x100
 [<ffffffff8109f062>] ? perf_adjust_freq_unthr_context.part.82+0xe2/0x140
 [<ffffffff8109f260>] ? perf_event_task_tick+0x1a0/0x280
 [<ffffffff81078be3>] ? scheduler_tick+0xc3/0x140
 [<ffffffff810615b5>] ? update_process_times+0x55/0x80
 [<ffffffff8108904d>] ? tick_sched_timer+0x4d/0xa0
 [<ffffffff81072d1b>] ? __run_hrtimer.isra.32+0x3b/0xc0
 [<ffffffff810735e5>] ? hrtimer_interrupt+0xc5/0x1e0
 [<ffffffff81045de3>] ? smp_apic_timer_interrupt+0x63/0xa0
 [<ffffffff8147768b>] ? apic_timer_interrupt+0x6b/0x70
 <EOI>  [<ffffffff81039100>] ? default_idle+0x20/0x40
 [<ffffffff81039172>] ? amd_e400_idle+0x52/0x100
 [<ffffffff81030156>] ? cpu_idle+0xb6/0xe0
---[ end trace 7dc3992f562261b6 ]---


-- 
Markus
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