Date: Wed, 23 May 2007 18:00:14 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Roger Miranda <rmiranda@digitalrelay.ca> Cc: freebsd-stable@freebsd.org Subject: Re: ghosthunting: machine freeze 6.2R Message-ID: <20070523220014.GA65025@xor.obsecurity.org> In-Reply-To: <200705231458.00357.rmiranda@digitalrelay.ca> References: <4652ECE2.7060400@vwsoft.com> <200705221224.37247.rmiranda@digitalrelay.ca> <20070522190335.GA77230@xor.obsecurity.org> <200705231458.00357.rmiranda@digitalrelay.ca>
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On Wed, May 23, 2007 at 02:57:59PM -0500, Roger Miranda wrote: > On Tuesday 22 May 2007 14:03, Kris Kennaway wrote: > > > > > What happens if you enable INVARIANTS and/or WITNESS? > > > I have enabled WITNESS, I have no experienced a freeze yet. But i did notice > on boot an WITNESS message for if_bridge. > > See attached. Could this be causing the freeze? Possibly, the point of WITNESS is to detect possible deadlock conditions that can cause hangs at runtime so it may well have succeeded to do its job here. Kris
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