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r: 131473
b: refs/heads/master
c: f9aa28a
h: refs/heads/master
i:
  131471: 833c7fc
v: v3
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Pekka Paalanen authored and Ingo Molnar committed Feb 15, 2009
1 parent 645959e commit c7a0664
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2 changes: 1 addition & 1 deletion [refs]
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refs/heads/master: 6bc5c366b1a45ca18fba6851f62db5743b3f6db5
refs/heads/master: f9aa28adfc6a4b01268ebb6d88566cca8627905f
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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