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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-30 22:05:31 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-30 22:05:31 +0100 |
| commit | 7bbc67fbf60b698b43692fc6ea16c526bf1c5e26 (patch) | |
| tree | 35b4c929ecea3d3fc54f221501a25c136bd6b1a6 /Documentation | |
| parent | Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kern... (diff) | |
| parent | ftrace: prevent recursion (diff) | |
| download | linux-7bbc67fbf60b698b43692fc6ea16c526bf1c5e26.tar.xz linux-7bbc67fbf60b698b43692fc6ea16c526bf1c5e26.zip | |
Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
ftrace: prevent recursion
tracing, doc: update mmiotrace documentation
x86, mmiotrace: fix buffer overrun detection
function tracing: fix wrong position computing of stack_trace
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/tracers/mmiotrace.txt | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/tracers/mmiotrace.txt b/Documentation/tracers/mmiotrace.txt index 5bbbe2096223..cde23b4a12a1 100644 --- a/Documentation/tracers/mmiotrace.txt +++ b/Documentation/tracers/mmiotrace.txt @@ -37,7 +37,7 @@ $ echo mmiotrace > /debug/tracing/current_tracer $ cat /debug/tracing/trace_pipe > mydump.txt & Start X or whatever. $ echo "X is up" > /debug/tracing/trace_marker -$ echo none > /debug/tracing/current_tracer +$ echo nop > /debug/tracing/current_tracer Check for lost events. @@ -66,7 +66,7 @@ which action. It is recommended to place descriptive markers about what you do. Shut down mmiotrace (requires root privileges): -$ echo none > /debug/tracing/current_tracer +$ echo nop > /debug/tracing/current_tracer The 'cat' process exits. If it does not, kill it by issuing 'fg' command and pressing ctrl+c. @@ -81,7 +81,9 @@ are: $ cat /debug/tracing/trace_entries 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 Then start again from the top. If you are doing a trace for a driver project, e.g. Nouveau, you should also |