Date: Tue, 03 Jun 2003 10:21:59 -0600 From: Scott Long <scottl@freebsd.org> To: Bryan Liesner <bleez@verizon.net> Cc: current@freebsd.org Subject: Re: umtx/libthr SMP fixes. Message-ID: <3EDCCB27.5020707@freebsd.org> In-Reply-To: <20030603115912.Q648@gravy.homeunix.net> References: <20030602230746.U69975-100000@mail.chesapeake.net> <20030603115912.Q648@gravy.homeunix.net>
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Bryan Liesner wrote: > On Mon, 2 Jun 2003, Jeff Roberson wrote: > > >>If you have had issues with libthr on SMP or umtx panics, the following >>patch may solve these issues. >> >>http://www.chesapeake.net/~jroberson/umtxlocks.diff >> >>This patch fixes several race conditions and other issues with umtx. > > > Actually, no it doesn't. I was able to use kern_umtx v 1.3 only if I > removed atapicam from my kernel config. These patches (now > committed?) panic the system whether I use atapicam or not. > With kern_umtx v1.2 there is no panic at all, with or without > atapicam. > > Actually, I think it's cam in general that's causing the panic with > these changes. > > Please see kern/52718 I didn't see a backtrace in the PR. Is there one that you can share with us? Scott
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