Re: [PATCH] get_wchan on running task sometimes MCAs the machine.

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On Fri, May 18, 2007 at 04:01:21PM -0700, Luck, Tony wrote:
> If the problem *only* occurs when trying to get_wchan on the
> current task (a futile endevour) then the original patch
> should be fine all by itself ... there are no races involved
> the current task is going to remain in TASK_RUNNING state at
> any point that it happens to look at itself.

The problem I was seeing was only on the current task, but we could
have two seperate threads creating that situation.  I could certain see
the argument for adding the sanity checks to the current unwind code or
verifying that libunwind does not suffer the same race conditions.

I will leave it to your discretion.

Thanks,
Robin
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