Date: Tue, 22 May 2007 15:03:35 -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: <20070522190335.GA77230@xor.obsecurity.org> In-Reply-To: <200705221224.37247.rmiranda@digitalrelay.ca> References: <4652ECE2.7060400@vwsoft.com> <200705221124.52133.rmiranda@digitalrelay.ca> <46531D4E.3080300@vwsoft.com> <200705221224.37247.rmiranda@digitalrelay.ca>
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On Tue, May 22, 2007 at 12:24:36PM -0500, Roger Miranda wrote: > On Tuesday 22 May 2007 11:41, Volker wrote: > > There's nothing of interest in the logs (I suspect it's too late to > > have any daemon write something to syslogd as the system is then > > dead). As I also think, this is somehow related to network traffic, > > I'll try to monitor it's traffic starting tomorrow. The tech guys at > > the office there have to install a hub first (yes, it's remote to me > > which makes investigation harder). > > > > As I think (well, guesswork) this might be related to GRE traffic > > (the poptop server), I may stop this traffic at the firewall (and > > take the service to another machine). > > > > What's the version of the system you're having trouble with? Is it > > pre-6.2? > > > > I'm wondering if your machine also passes GRE traffic? Does it > > provide pptp services? > > > > I've attached the latest dmesg, can you see any similarities (as it > > still might be a hardware issue)? > > Volker, > > Yes. We get nothing in the logs, No kernel panics, and we can not break to > the kernel debugger. What happens if you enable INVARIANTS and/or WITNESS? Kris
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