On Tue, 12 Apr 2005 13:01:58 +0200
Florian Schmidt <mista.tapas(a)gmx.net> wrote:
cannot find the option anymore - anyone please fill me
in.. maybe you
just need to enable the other tracing mechanisms there and then enable
the user triggered tracing via one of the control in /proc/sys/kernel/.
Ah damn, that's what you get for not following kernel development
closely)..
The control is
/proc/sys/kernel/trace_user_triggered
enable it with
echo 1 > /proc/sys/kernel/trace_user_triggered
I _think_ the relevant kernel config option is "Latency tracing". For
this you need to enable the "Non-preemptible critical section latency
timing". Both in "Kernel hacking"..
Flo
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http://affenbande.org/~tapas/