Date: Tue, 21 Jan 2014 13:21:06 -0500 From: John Baldwin <jhb@freebsd.org> To: alfred@freebsd.org Cc: freebsd-bugs@freebsd.org Subject: Re: misc/185831: bumping maxcpu causes witness to panic at boot Message-ID: <201401211321.06530.jhb@freebsd.org> In-Reply-To: <201401170041.s0H0frLQ086977@freefall.freebsd.org> References: <201401170041.s0H0frLQ086977@freefall.freebsd.org>
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On Thursday, January 16, 2014 7:41:53 pm alfred@freebsd.org wrote: > Synopsis: bumping maxcpu causes witness to panic at boot > > Responsible-Changed-From-To: freebsd-bugs->jhb > Responsible-Changed-By: alfred > Responsible-Changed-When: Fri Jan 17 00:41:11 UTC 2014 > Responsible-Changed-Why: > John, can I get a review please? WITNESS_COUNT should not need to change. If changing MAXCPU changes the number of witness structures in use, that is a bug (it means locks are named incorrectly). We could certainly change exhaustion of PENDLIST to not be a panic but to disable witness instead and possibly make PENDLIST depend on MAXCPU, but WITNESS_COUNT should not be a function of MAXCPU. -- John Baldwin
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