Commit-ID: d931369b74b3d6f2044f595af6f3dd074f65d9cf
Gitweb: http://git.kernel.org/tip/d931369b74b3d6f2044f595af6f3dd074f65d9cf
Author: Steven Rostedt <srostedt@xxxxxxxxxx>
AuthorDate: Wed, 6 Jan 2010 17:27:11 -0500
Committer: Steven Rostedt <rostedt@xxxxxxxxxxx>
CommitDate: Wed, 6 Jan 2010 18:09:57 -0500
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@xxxxxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
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 abdd333..5314c90 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);
--
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