From owner-freebsd-hackers Sat Jun 3 02:11:57 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id CAA20287 for hackers-outgoing; Sat, 3 Jun 1995 02:11:57 -0700 Received: from gndrsh.aac.dev.com (gndrsh.aac.dev.com [198.145.92.241]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id CAA20264 for ; Sat, 3 Jun 1995 02:11:52 -0700 Received: (from rgrimes@localhost) by gndrsh.aac.dev.com (8.6.11/8.6.9) id CAA12950; Sat, 3 Jun 1995 02:11:26 -0700 From: "Rodney W. Grimes" Message-Id: <199506030911.CAA12950@gndrsh.aac.dev.com> Subject: Re: hang problems To: joerg_wunsch@uriah.heep.sax.de Date: Sat, 3 Jun 1995 02:11:25 -0700 (PDT) Cc: james@miller.cs.uwm.edu, hackers@FreeBSD.org In-Reply-To: <199506030827.KAA16939@uriah.heep.sax.de> from "J Wunsch" at Jun 3, 95 10:27:41 am X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 899 Sender: hackers-owner@FreeBSD.org Precedence: bulk > > As Jim Lowe wrote: > > > > Every once in a while after I reboot my system, it hangs. I am not sure > > what type of problem this is. Is there a method to obtain a core dump or > > drop the system into the kernel debugger after/during a system hang? > > Nope, the system is no longer running at this stage, it attempted to > reset the CPU (either way, i think it first tries the keyboard > controller reset, and then a CPU shutdown [wiping the page table > directory, and flush the TLB]). If the system is stuck at this > point, only a hardware reset will help. > > Rod, ain't this your baby? Nope, my baby is very solid. It is either a ``well reboot'' or ``won't reboot'', it is never a ``Every once in a while'' type of problem. -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Custom computers for FreeBSD