diff options
| author | Steven J. Magnani <[email protected]> | 2010-04-02 18:29:39 +0000 |
|---|---|---|
| committer | Michal Simek <[email protected]> | 2010-04-07 05:27:25 +0000 |
| commit | d2bf98e6fc2612cbd2fc40f75a1e2c5d60262331 (patch) | |
| tree | 7a69042d5f841ee7f66f0d6661df09c9fdfbe402 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
| parent | Merge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/... (diff) | |
| download | kernel-d2bf98e6fc2612cbd2fc40f75a1e2c5d60262331.tar.gz kernel-d2bf98e6fc2612cbd2fc40f75a1e2c5d60262331.zip | |
microblaze: Fix ftrace_update_ftrace_func panic
The Microblaze dynamic ftrace code assumes a call ordering that is not met
in all scenarios. Specifically, executing a command similar to:
echo 105 > /sys/kernel/debug/tracing/set_ftrace_pid
before any other tracing-related commands results in a kernel panic:
BUG: failure at arch/microblaze/kernel/ftrace.c:198/ftrace_update_ftrace_func()!
Recoding ftrace_update_ftrace_func() to use &ftrace_caller directly eliminates
the need to capture its address elsewhere (and thus rely on a particular call
sequence).
Signed-off-by: Steven J. Magnani <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
0 files changed, 0 insertions, 0 deletions