Date: Sat, 9 Oct 2004 05:06:01 -0400 From: Brian Fundakowski Feldman <green@FreeBSD.org> To: Don Lewis <truckman@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern subr_witness.c Message-ID: <20041009090601.GA16005@green.homeunix.org> In-Reply-To: <200410090825.i998PdcG063358@gw.catspoiler.org> References: <200410090816.i998Gbs5076009@repoman.freebsd.org> <200410090825.i998PdcG063358@gw.catspoiler.org>
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On Sat, Oct 09, 2004 at 01:25:39AM -0700, Don Lewis wrote: > On 9 Oct, Brian Feldman wrote: > > green 2004-10-09 08:16:37 UTC > > > > FreeBSD src repository > > > > Modified files: > > sys/kern subr_witness.c > > Log: > > Don't "implicitly order all sleep locks before spin locks" in witness > > when the spin lock in question isn't -- it's the critical_enter() that > > KDB set. No more panic in DDB for console -> syscons -> tty -> knote > > operations. > > If I'm understanding this correctly, calling knote sounds like the wrong > thing to do in this situation ... There's previous little that can be done "right," from within DDB.... -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
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