new panic in cpu_reset() with WITNESS

Gleb Smirnoff glebius at
Sun Jan 22 16:35:41 UTC 2012

On Sat, Jan 21, 2012 at 03:38:59PM +0200, Andriy Gapon wrote:
A> on 20/01/2012 17:41 Gleb Smirnoff said the following:
A> > 
A> > On Tue, Jan 17, 2012 at 03:02:42PM +0400, Gleb Smirnoff wrote:
A> > T>   New panic has been introduced somewhere between
A> > T> r229851 and r229932, that happens on shutdown if
A> > T> kernel has WITNESS and doesn't have WITNESS_SKIPSPIN.
A> > 
A> > I've run through binary search and panic was introduced
A> > by r229854.
A> > 
A> Which means that it was introduced by one of the earlier commits (probably
A> mine).  Thank you for this investigative work!
A> Although, to be frank and honest, I still don't see how the problem could be
A> a non-issue before.

I can confirm that I can reboot succesfully with a new kernel
and kern.stop_scheduler_on_panic=0.

Totus tuus, Glebius.

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