On Fri, Feb 24, 2012 at 9:56 PM, Dmitry Antipov dmitry.antipov@linaro.org wrote:
On 02/24/2012 01:44 PM, Ming Lei wrote:
Could you share us how you reproduced the problem? and which kernel are you used to reproduce it?
The kernel is Linus' tree (bb4c7e9a9908548b458f34afb2fee74dc0d49f90), .config is attached. HW is Panda board (OMAP4430). Reproduced by just starting oprofile:
opcontrol --vmlinux=vmlinux opcontrol --start
then waiting a few seconds to hit an unhandled IRQs threshold.
Looks I didn't observe the problem with 'perf', so could you run 'perf' to see if same thing can be found?
Also I will try run 'oprofile' on my pandaboard to test next week.
BTW: suggest you to apply the recent arm pmu irq fix patches[1] to test 'oprofile'.
[1], http://marc.info/?t=133001284900005&r=1&w=2
thanks, -- Ming Lei