Date: 25 Apr 2002 19:59:37 +0200 From: Dag-Erling Smorgrav <des@ofug.org> To: John Baldwin <jhb@FreeBSD.org> Cc: Hiten Pandya <hiten@uk.FreeBSD.org>, current@FreeBSD.org Subject: Re: Spin lock (?) problems with MUTEX_PROFILING Message-ID: <xzplmbbwtfa.fsf@flood.ping.uio.no> In-Reply-To: <XFMail.20020425131040.jhb@FreeBSD.org> References: <XFMail.20020425131040.jhb@FreeBSD.org>
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John Baldwin <jhb@FreeBSD.org> writes: > This means WITNESS is broken with MUTEX_PROFIING (I guess they were > never tested together without WITNESS_SKIPSPIN). WITNESS makes my box about as useful as a heap of bricks, so no, MUTEX_PROFILING was never tested with WITNESS. > The fix is for the > MUTEX_PROFILING folks to add the spin lock into the spin lock order > list in the proper location. Junior kernel hacker task. Note that it's always a leaf lock - no lock is ever acquired while the profiling lock is held. DES -- Dag-Erling Smorgrav - des@ofug.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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