John Baldwin abd9053ee4 Blow away the panic mutex in favor of using a single atomic_cmpset() on a ... panic_cpu shared variable. I used a simple atomic operation here instead of a spin lock as it seemed to be excessive overhead. Also, this can avoid recursive panics if, for example, witness is broken.		2001-04-17 04:18:08 +00:00
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aim	remove bogus check -- for kernel threads we fork off of proc0, not curproc	2001-03-15 02:32:26 +00:00
include	Rework the witness code to work with sx locks as well as mutexes.	2001-03-28 09:03:24 +00:00
powerpc	Blow away the panic mutex in favor of using a single atomic_cmpset() on a	2001-04-17 04:18:08 +00:00