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From: Max Laier <max@love2party.net>
Organization: FreeBSD
To: Giulio Ferro <auryn@zirakzigil.org>
Date: Wed, 17 Mar 2010 18:00:51 +0100
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
	Greg Hennessy <Greg.Hennessy@nviz.net>, freebsd-pf@freebsd.org
Subject: Re: PF + BRIDGE + PFSYNC causes system freezing
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On Wednesday 17 March 2010 17:57:54 Giulio Ferro wrote:
> On 17.03.2010 17:47, Max Laier wrote:
> > On Wednesday 17 March 2010 17:37:31 Giulio Ferro wrote:
> >> On 17.03.2010 16:50, Greg Hennessy wrote:
> >>> A possible corner case with the virtual hosting platform ?
> >>>
> >>> Try changing the NICS from EM to something else supported RL on vmware
> >>> IIRC.
> >>
> >> Nope, I'm not using virtualization, that's the other guy.
> >>
> >> I'm using a physical machine...
> >
> > Can you enable WITNESS and compile in DDB.  Make sure to report any LORs
> > and once the system freezes try to enter the debugger and get ps and
> > locks information.
> >
> > show allchains
> > show alllocks
> > ps
> >
> > After that you can try to "call doadump" so you get the information in
> > the coredump and don't have to transcribe it manually.
> >
> > Thanks,
> >    Max
> 
> Sorry, I'm not really an expert of this, but how can I enter the debugger
> if the system has frozen?

Ctrl+Alt+ESC (in default configuration).