Re: [BUG] Strange 1-second pauses during Resume-from-RAM

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Ingo Molnar wrote:
* Ingo Molnar <[email protected]> wrote:

Is there a version of these that works with 2.6.23.1 ?
yes, i've backported it and have uploaded the v2.6.23 version to:

  http://redhat.com/~mingo/latency-tracing-patches/latency-tracer-v2.6.23.1-combo.patch
..

ok, i experimented around with the latency tracer, trying to capture the trace of a full suspend+resume cycle, and it needed the tracer fix below (GTOD clocksource suspend/resume would otherwise confuse the tracer and you'd get no trace output as a result).

once that tracer bug was fixed, the best method to generate a trace was to do this:

   echo 1 > /proc/sys/kernel/stackframe_tracing
   echo 1 > /proc/sys/kernel/syscall_tracing
   ./trace-cmd bash -c "echo mem > /sys/power/state" > trace.txt
..

I've applied the tracer for 2.6.23.1 patch, plus the bugfix,
and now I just get blinking-LEDs (black screen of death) on resume.

Cheers
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