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| author | Steven Rostedt <srostedt@redhat.com> | 2010-01-06 17:27:11 -0500 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2010-01-06 18:09:57 -0500 |
| commit | d931369b74b3d6f2044f595af6f3dd074f65d9cf (patch) | |
| tree | ae60bd92388f278d32f659b7ce5ff20a229e0bb1 /kernel/trace | |
| parent | dfaa9e2c5707b2c217c0121aac796e0fa3051482 (diff) | |
| download | linux-d931369b74b3d6f2044f595af6f3dd074f65d9cf.tar.gz linux-d931369b74b3d6f2044f595af6f3dd074f65d9cf.tar.bz2 linux-d931369b74b3d6f2044f595af6f3dd074f65d9cf.zip | |
tracing: Add stack dump to trace_printk if stacktrace option is set
If the ftrace stacktrace option is set, then add the stack dumps to
trace_printk.
Requested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index abdd333a0825..5314c90bbc83 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1392,8 +1392,10 @@ int trace_vbprintk(unsigned long ip, const char *fmt, va_list args) entry->fmt = fmt; memcpy(entry->buf, trace_buf, sizeof(u32) * len); - if (!filter_check_discard(call, entry, buffer, event)) + if (!filter_check_discard(call, entry, buffer, event)) { ring_buffer_unlock_commit(buffer, event); + ftrace_trace_stack(buffer, flags, 6, pc); + } out_unlock: arch_spin_unlock(&trace_buf_lock); @@ -1466,8 +1468,10 @@ int trace_array_vprintk(struct trace_array *tr, memcpy(&entry->buf, trace_buf, len); entry->buf[len] = '\0'; - if (!filter_check_discard(call, entry, buffer, event)) + if (!filter_check_discard(call, entry, buffer, event)) { ring_buffer_unlock_commit(buffer, event); + ftrace_trace_stack(buffer, irq_flags, 6, pc); + } out_unlock: arch_spin_unlock(&trace_buf_lock); |