Messages in this thread | | | Date | Thu, 21 Sep 2006 00:35:22 -0700 | Subject | Re: [PATCH] move put_task_struct() reaping into a thread [Re: 2.6.18-rt1] | From | Bill Huey (hui) <> |
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On Thu, Sep 21, 2006 at 09:22:16AM +0200, Ingo Molnar wrote: > * Bill Huey <billh@gnuppy.monkey.org> wrote: > > > Also, triggering a panic() at the beginning of the rt mutex acquire > > was very useful since it made "in_atomic()" violations an explicit > > error stopping the machine. Stack traces started to get really crazy > > in this preemptive kernel with all sorts of things running unlike the > > non-preemptive kernel and it was time consuming to figure out the real > > stuff from the noise in the stack trace. > > well you should absolutely have serial console if you effectively want > to hack the Linux kernel. And in the serial console log you should > search for stacktraces top-down, and concentrate on the first one - any > subsequent one might be collateral damage of the first one.
Of course I did that. I'm not that stupid. :) The stack traces, even with your above suggestions were too many and I had to break it down a bug at a time, stack trace at a time, since I realize problems earlier could clash and trigger other unrelated problems.
It was even problematic with the serial console on which is why I did that. Maybe it was an artifact of having both the serial console and video consoles on ?
bill
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