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| author |   walimis <walimisdev@gmail.com> | 2009-06-03 16:01:28 +0800 |
|---|---|---|
| committer |   Steven Rostedt <rostedt@goodmis.org> | 2009-06-03 10:24:44 -0400 |
| commit | 083a63b48e4dd0a6a2d44216720076dc81ebb255 (patch) | |
| tree | c63fe5fed8b44538ecb6870cbe99c45d32915f9e /kernel/trace/trace_stack.c | |
| parent | ring-buffer: discard timestamps that are at the start of the buffer (diff) | |
| download | linux-dev-083a63b48e4dd0a6a2d44216720076dc81ebb255.tar.xz linux-dev-083a63b48e4dd0a6a2d44216720076dc81ebb255.zip | |
tracing/trace_stack: fix the number of entries in the header
The last entry in the stack_dump_trace is ULONG_MAX, which is not
a valid entry, but max_stack_trace.nr_entries has accounted for it.
So when printing the header, we should decrease it by one.
Before fix, print as following, for example:
Depth Size Location (53 entries) <--- should be 52
----- ---- --------
0) 3264 108 update_wall_time+0x4d5/0x9a0
...
51) 80 80 syscall_call+0x7/0xb
^^^
it's correct.
Signed-off-by: walimis <walimisdev@gmail.com>
LKML-Reference: <1244016090-7814-1-git-send-email-walimisdev@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_stack.c')
| -rw-r--r-- | kernel/trace/trace_stack.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index 1796f00524e1..2d7aebd71dbd 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -265,7 +265,7 @@ static int t_show(struct seq_file *m, void *v) seq_printf(m, " Depth Size Location" " (%d entries)\n" " ----- ---- --------\n", - max_stack_trace.nr_entries); + max_stack_trace.nr_entries - 1); if (!stack_tracer_enabled && !max_stack_size) print_disabled(m); |