Messages in this thread | | | Date | Tue, 16 Aug 2011 11:16:05 -0400 | From | Don Zickus <> | Subject | Re: [PATCH v7 2/2] Output stall data in debugfs |
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On Thu, Aug 11, 2011 at 04:35:08PM -0700, Alex Neronskiy wrote: > Instead of using the log, use debugfs for output of both stall > lengths and stack traces. Printing to the log can result in > watchdog touches, distorting the very events being measured. > Additionally, the information will not distract from lockups > when users view the log. > > A two-buffer system is used to ensure that the trace information > can always be recorded without contention. > > Signed-off-by: Alex Neronskiy <zakmagnus@chromium.org> > --- > Changes from last version per Peter's suggestions: different > locks, refactoring, ACCESS_ONCE.
I think I am going to ignore these patches for now until I see if you can solve things using Ingo's idea.
Cheers, Don
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