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r: 140617
b: refs/heads/master
c: 5d2ad33
h: refs/heads/master
i:
  140615: f8f1a0d
v: v3
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Pekka Paalanen authored and Ingo Molnar committed Jan 11, 2009
1 parent 1c5ed7b commit 3d047d2
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2 changes: 1 addition & 1 deletion [refs]
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refs/heads/master: 034939b65ad5ff64b9709210b3469a95153c51a3
refs/heads/master: 5d2ad3316e29ad218f98d66b9c0ce6d4bcd05b77
6 changes: 2 additions & 4 deletions trunk/Documentation/tracers/mmiotrace.txt
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Expand Up @@ -78,12 +78,10 @@ to view your kernel log and look for "mmiotrace has lost events" warning. If
events were lost, the trace is incomplete. You should enlarge the buffers and
try again. Buffers are enlarged by first seeing how large the current buffers
are:
$ cat /debug/tracing/trace_entries
$ cat /debug/tracing/buffer_size_kb
gives you a number. Approximately double this number and write it back, for
instance:
$ echo 0 > /debug/tracing/tracing_enabled
$ echo 128000 > /debug/tracing/trace_entries
$ echo 1 > /debug/tracing/tracing_enabled
$ echo 128000 > /debug/tracing/buffer_size_kb
Then start again from the top.

If you are doing a trace for a driver project, e.g. Nouveau, you should also
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