Date: Thu, 7 Jun 2007 14:27:24 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Roger Miranda <rmiranda@digitalrelay.ca> Cc: freebsd-stable@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: Hard Hang, nothing in logs / no panics Message-ID: <20070607182724.GA27795@rot13.obsecurity.org> In-Reply-To: <200706070823.33104.rmiranda@digitalrelay.ca> References: <200705111442.52523.rmiranda@digitalrelay.ca> <200705111643.08417.rmiranda@digitalrelay.ca> <20070511214735.GA31850@xor.obsecurity.org> <200706070823.33104.rmiranda@digitalrelay.ca>
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On Thu, Jun 07, 2007 at 08:23:32AM -0500, Roger Miranda wrote: > On Friday 11 May 2007 16:47, Kris Kennaway wrote: > > > Am I possible looking at a hardware issue? If so > > > what is the best way to test for it? > > > > If that doesn't work then in my experience it is likely to be > > hardware-related. The usual debugging procedure then involves trying > > to replicate on an unrelated machine, and/or swapping out hardware > > components. > > Kris, > > Sorry for the time delay. > > But we have confirmed this is not a hardware issue. We have is dead locking > across multiple systems, when bridge a moderate amount of tcp connections. > > I have no idea how to debug this. > > Could it be an issues with if_config of pf? We are using the latest drivers > form intel. But have ruled it out as being an driver or network card related > problem. And to confirm, WITNESS finds nothing and you are unable to break to DDB even with STOP_NMI? Kris
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