Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site orac.UUCP Path: utzoo!watmath!clyde!burl!ulysses!harpo!decvax!mulga!munnari!natmlab!orac!swine From: swine@orac.UUCP (Peter Swain) Newsgroups: net.unix-wizards Subject: Re: 4.2 died on our VAX. Message-ID: <147@orac.UUCP> Date: Tue, 10-Apr-84 06:47:56 EST Article-I.D.: orac.147 Posted: Tue Apr 10 06:47:56 1984 Date-Received: Thu, 22-Mar-84 01:32:28 EST References: <301@erix.UUCP>, <239@astrovax.UUCP> Organization: CSIRO/Siromath Lindfield NSW Lines: 23 > Is there any way to force a dump in these conditions? ... > > Mike Williams > There have been times when the system was very sick that the only cure was > rebooting yet one wanted a core dump to study. > > Bill Sebok If the system is alive enough to panic, but ignoring the world, give it something to panic about ... on a vax (for example): ^P ! get it's attention H ! halt a 780 (ignored on smaller vaxen) E/G F ! remember PC for later analysis D/G F C0000000 ! the beginning of the illegal gigabyte ... ! -1 is easier to type, but 7[35]0's don't like `-'. C ! continue at silly addr extreme embarrasment produces a nice dump -- buffers are sync'd & whole state preserved (except for the clobbered pc, which was prob the idle loop anyway). Peter Swain