Date: Wed, 4 Jun 2003 02:18:31 -0400 (EDT) From: Jeff Roberson <jroberson@chesapeake.net> To: Terry Lambert <tlambert2@mindspring.com> Cc: current@freebsd.org Subject: Re: umtx/libthr SMP fixes. Message-ID: <20030604021752.Y69975-100000@mail.chesapeake.net> In-Reply-To: <3EDD89F0.C3FED9CE@mindspring.com>
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On Tue, 3 Jun 2003, Terry Lambert wrote: > Scott Long wrote: > > Bryan Liesner wrote: > > It's very hard to imagine Jeff's patches causing a problem at the point > > that the PR mentions. Have you confirmed the problem in a kernel that > > was build in a totally clean environment? > > The changed code is not protecting a traversal of a proc > struct member with a proc lock in two places. What's hard > to imagine? > This is no longer the case with the latest revision. Apparently the panics in cam continue even after the proc lock issues were fixed. > Even if it's weren't necessary to protect that FOREACH loop > (it's necessary; but even if it weren't...), locking the > proc could easily serialize a number of operations through > that or other code which could save it from interference. > > -- Terry > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >
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