Date: Sun, 17 Mar 2002 12:08:54 -0500 (EST) From: Robert Watson <rwatson@FreeBSD.ORG> To: Alfred Perlstein <bright@mu.org> Cc: Munehiro Matsuda <haro@h4.dion.ne.jp>, tanimura@r.dl.itc.u-tokyo.ac.jp, phk@FreeBSD.ORG, hitmaster2k@yahoo.com, current@FreeBSD.ORG, smp@FreeBSD.ORG Subject: Re: -current lock warning... Message-ID: <Pine.NEB.3.96L.1020317120811.965J-100000@fledge.watson.org> In-Reply-To: <20020317163953.GY4857@elvis.mu.org>
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On Sun, 17 Mar 2002, Alfred Perlstein wrote: > * Munehiro Matsuda <haro@h4.dion.ne.jp> [020317 06:36] wrote: > > > > PS. I got another message that happend when I ^C'ed a buildworld earlier, > > with same kernel. May be it should go to Alfred Perlstein? > > > > lock order reversal > > 1st 0xc198eec0 pipe mutex @ ../../../kern/sys_pipe.c:779 > > 2nd 0xc0367fe0 Giant @ ../../../i386/i386/trap.c:716 > > I think there's a place where the pipe can fault on an address while > copying, I'll take a look at this. Are there any assertions that should be in place for copyin/copyout requring fault handling? It sounds like somewhere we need to assert that Giant is held... Robert N M Watson FreeBSD Core Team, TrustedBSD Project robert@fledge.watson.org NAI Labs, Safeport Network Services To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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