Steven Rostedt (Red Hat)
de7edd3145
tracing: Disable tracing on warning ...
Add a traceoff_on_warning option in both the kernel command line as well
as a sysctl option. When set, any WARN*() function that is hit will cause
the tracing_on variable to be cleared, which disables writing to the
ring buffer.
This is useful especially when tracing a bug with function tracing. When
a warning is hit, the print caused by the warning can flood the trace with
the functions that producing the output for the warning. This can make the
resulting trace useless by either hiding where the bug happened, or worse,
by overflowing the buffer and losing the trace of the bug totally.
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-06-19 23:32:07 -04:00
Merge branch 'for-3.10/drivers' of git://git.kernel.dk/linux-block
2013-05-08 11:51:05 -07:00
ftrace: Use schedule_on_each_cpu() as a heavy synchronize_sched()
2013-06-11 18:38:50 -04:00
ring-buffer: Select IRQ_WORK
2013-05-03 19:24:17 -04:00
trace: Stop compiling in trace_clock unconditionally
2012-09-13 22:52:08 -04:00
PM / tracing: remove deprecated power trace API
2013-01-26 00:39:12 +01:00
ring-buffer: Do not poll non allocated cpu buffers
2013-05-28 10:53:20 -04:00
tracing: Disable tracing on warning
2013-06-19 23:32:07 -04:00
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-04-30 07:41:01 -07:00
tracing: Fix the branch tracer that broke with buffer change
2013-03-15 00:35:54 -04:00
tracing: Add "uptime" trace clock that uses jiffies
2013-03-15 00:36:09 -04:00
tracing: Add trace_puts() for even faster trace_printk() tracing
2013-03-15 00:35:55 -04:00
perf/core improvements and fixes:
2012-08-21 11:27:00 +02:00
tracing: Do not call kmem_cache_free() on allocation failure
2013-06-11 18:38:52 -04:00
tracing: Add binary '&' filter for events
2013-06-19 23:30:40 -04:00
tracing: Fix some section mismatch warnings
2013-03-15 00:34:54 -04:00
tracing: Add function probe to trigger a ftrace dump of current CPU trace
2013-06-11 18:38:48 -04:00
tracing: Consolidate max_tr into main trace_array structure
2013-03-15 00:35:40 -04:00
tracing: Add function-trace option to disable function tracing of latency tracers
2013-03-15 00:36:08 -04:00
tracing: Consolidate max_tr into main trace_array structure
2013-03-15 00:35:40 -04:00
tracing/kprobes: Make print_*probe_event static
2013-05-15 13:50:24 -04:00
tracing: Consolidate max_tr into main trace_array structure
2013-03-15 00:35:40 -04:00
Tracing updates for Linux 3.10
2013-04-29 13:55:38 -07:00
tracing: Rename trace_event_mutex to trace_event_sem
2013-03-15 13:22:10 -04:00
tracing: Replace strict_strto* with kstrto*
2012-10-31 16:45:23 -04:00
uprobes/tracing: Introduce is_trace_uprobe_enabled()
2013-02-08 18:24:30 +01:00
tracing: Consolidate max_tr into main trace_array structure
2013-03-15 00:35:40 -04:00
tracing: Add function-trace option to disable function tracing of latency tracers
2013-03-15 00:36:08 -04:00
tracing: Fix bad parameter passed in branch selftest
2013-05-29 16:00:03 -04:00
Tracing updates for Linux 3.10
2013-04-29 13:55:38 -07:00
tracing: Check return value of tracing_init_dentry()
2013-04-12 23:02:32 -04:00
tracing: Fix comment about prefix in arch_syscall_match_sym_name()
2013-03-15 13:22:09 -04:00
uprobes/perf: Avoid perf_trace_buf_prepare/submit if ->perf_events is empty
2013-04-15 17:39:52 +02:00
de7edd3145