Date: Fri, 17 May 2002 23:12:31 -0300 (ADT) From: "Marc G. Fournier" <scrappy@hub.org> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: freebsd-current@freebsd.org, <freebsd-hackers@freebsd.org> Subject: Re: How to dump a 4gig system on panic ? Message-ID: <20020517210219.P41731-100000@mail1.hub.org> In-Reply-To: <15589.13737.302689.294546@grasshopper.cs.duke.edu>
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Okay, seem to be about halfway there ... client kldload's no problem, server runs ... do a ctl-alt-esc to get into DDB and type panic, and it gives a message that its looking for the server and it finds it on the right IP ... then it prints out a '1023' and finishes the panic ... On the 'dump server', a vmcore gets created, but its zero length ... thoughts? On Fri, 17 May 2002, Andrew Gallatin wrote: > > Marc G. Fournier writes: > > > > Well, downloaded the files (a .tar.gz would be nice? *grin*) and the > > client built perfectly, and kldload worked fine ... is there some way > > someone can suggest of 'simulating a crash'? Some way to test to make > > sure that it is working as expected? I have a 4.6-PRE machine on my desk > > that I'd like to test with before I try it on "the real thing", if at all > > possible? > > break into ddb & do: > ddb > call dumpsys() > > Unless you're running a savecore which supports partial dumps, you > need to disable partial dumps (sysctl net.net_dump.partial=0). > > And remember, you'll be spewing the contents of your ram (possibly > passwords, etc) across the network in clear text. > > Drew > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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