On Thu, Feb 27, 2014 at 04:26:35AM +0100, Mike Galbraith wrote: > > I would start with strace to see if a task is looping in userspace, then > move on to perf top -g -p <pid> (or perf record/report) to peek at what > it's up to in the kernel. Once you have the where, trace_printk() is > the best thing since sliced bread (which ranks just below printk()). > > -Mike Thanks. I'll need to build perf.
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