Re: [3.4-rc3] Thread overran stack, or stack corrupted

[Dave Jones <davej@redhat.com>]

On Tue, Apr 17, 2012 at 11:43:31PM -0400, Steven Rostedt wrote:
 > On Tue, 2012-04-17 at 23:15 -0400, Dave Jones wrote:
 > 
 > > That looks handy. Doesn't seem to work for me though on my test box.
 > > (config option is enabled.)
 > > 
 > > # echo 1 > /proc/sys/kernel/stack_tracer_enabled
 > > # cat /sys/kernel/debug/tracing/stack_trace
 > >         Depth    Size   Location    (-1 entries)
 > >         -----    ----   --------
 > > 
 > > That's all she wrote.
 > 
 > Hmm, was there any problems with the function tracer?
 > Messages in dmesg?

nope.

 > Just to make sure, what does
 > 
 >  /sys/kernel/debug/tracing/enabled_functions
 > 
 > have?

33503 lines.
 
 > This would show what functions the stack tracer is using.
 > 
 > I just compiled the latest vanilla kernel and tried it out, and it
 > worked for me.

works on my other machines too with similar kernel configs, just not on the one I'm profiling.

	Dave