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| author | Steven Rostedt <srostedt@redhat.com> | 2011-12-20 04:01:00 +0100 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2011-12-21 13:26:49 +0100 |
| commit | 762e1207889b3451c50d365b741af6f9ce958886 (patch) | |
| tree | dcb1f4eacbddfa342181a29a97eb9b994922b009 /Documentation | |
| parent | ftrace: Allow access to the boot time function enabling (diff) | |
| download | linux-762e1207889b3451c50d365b741af6f9ce958886.tar.xz linux-762e1207889b3451c50d365b741af6f9ce958886.zip | |
tracing: Have stack tracing set filtered functions at boot
Add stacktrace_filter= to the kernel command line that lets
the user pick specific functions to check the stack on.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index fd5c913c33c1..fde2ae06539a 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2435,6 +2435,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted. stacktrace [FTRACE] Enabled the stack tracer on boot up. + stacktrace_filter=[function-list] + [FTRACE] Limit the functions that the stack tracer + will trace at boot up. function-list is a comma separated + list of functions. This list can be changed at run + time by the stack_trace_filter file in the debugfs + tracing directory. Note, this enables stack tracing + and the stacktrace above is not needed. + sti= [PARISC,HW] Format: <num> Set the STI (builtin display/keyboard on the HP-PARISC |