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SubjectRe: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U5
On Mon, 18 Oct 2004, Ingo Molnar wrote:

> > However, after I reset the threshold to 50(and got a few small traces), I got
> > this whopper.
> >
> > (XFree86/1129/CPU#0): new 4692 us maximum-latency critical section.
> > => started at timestamp 358506933: <call_console_drivers+0x76/0x140>
> > => ended at timestamp 358511625: <finish_task_switch+0x43/0xa0>
> > [<c0132480>] sub_preempt_count+0x60/0x90
>
> interesting - this could be a printk (trace) done in a critical section
> though. What does /proc/latency_trace tell, is it full of console code
> functions?

Too late, it's gone. It'd be nice if there was some way to have history on
that file.
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