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author | 2016-11-28 13:17:25 -0500 | |
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committer | 2016-12-09 09:14:00 -0500 | |
commit | 1dd349ab74d278cee50fc24dc26c023f3b149642 (patch) | |
tree | 58adadd49877f222a88007c10dc35eb2e160a02f /tools/perf/scripts/python/export-to-postgresql.py | |
parent | tracing: Have the reg function allow to fail (diff) | |
download | wireguard-linux-1dd349ab74d278cee50fc24dc26c023f3b149642.tar.xz wireguard-linux-1dd349ab74d278cee50fc24dc26c023f3b149642.zip |
tracing: Do not start benchmark on boot up
Trace events are enabled very early on boot up via the boot command line
parameter. The benchmark tool creates a new thread to perform the trace
event benchmarking. But at start up, it is called before scheduling is set
up and because it creates a new thread before the init thread is created,
this crashes the kernel.
Have the benchmark fail to register when started via the kernel command
line.
Also, since the registering of a tracepoint now can handle failure cases,
return -ENOMEM instead of warning if the thread cannot be created.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions