Date: 22 Feb 2001 15:23:50 +0100 From: Dag-Erling Smorgrav <des@ofug.org> To: John Baldwin <jhb@FreeBSD.org> Cc: Maxim Sobolev <sobomax@FreeBSD.org>, "Alexander N. Kabaev" <ak03@gte.com>, current@FreeBSD.org Subject: Re: A possible bug in the interrupt thread preemption code [Was: Message-ID: <xzpofvulrt5.fsf@flood.ping.uio.no> In-Reply-To: John Baldwin's message of "Thu, 22 Feb 2001 06:18:16 -0800 (PST)" References: <XFMail.010222061816.jhb@FreeBSD.org>
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John Baldwin <jhb@FreeBSD.org> writes: > On 22-Feb-01 Maxim Sobolev wrote: > > It's already have INVARIANTS, MUTEX_DEBUG, WITNESS and WITNESS_DDB. > Hmm, ouch, you do'nt want MUTEX_DEBUG, that'll slow your system to a crawl. For the same reason, you probably want WITNESS_SKIPSPIN. WITNESS_DDB is a bad idea, BTW, there's a (presumably harmless) lock order reversal in the FS code that you're practically guaranteed to to hit during boot. 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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