new panic in cpu_reset() with WITNESS

Andriy Gapon avg at
Sat Jan 21 17:25:16 UTC 2012

on 21/01/2012 15:38 Andriy Gapon said the following:
> on 20/01/2012 17:41 Gleb Smirnoff said the following:
>> On Tue, Jan 17, 2012 at 03:02:42PM +0400, Gleb Smirnoff wrote:
>> T>   New panic has been introduced somewhere between
>> T> r229851 and r229932, that happens on shutdown if
>> T> kernel has WITNESS and doesn't have WITNESS_SKIPSPIN.
>> I've run through binary search and panic was introduced
>> by r229854.
> Which means that it was introduced by one of the earlier commits (probably
> mine).  Thank you for this investigative work!
> Although, to be frank and honest, I still don't see how the problem could be
> a non-issue before.

BTW, just to be sure, does the problem go away when kern.stop_scheduler_on_panic
is set to zero?

Andriy Gapon

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