From owner-freebsd-hackers@FreeBSD.ORG Fri May 12 22:39:39 2006 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 35A3016A586 for ; Fri, 12 May 2006 22:39:39 +0000 (UTC) (envelope-from stas@310.ru) Received: from com1.ht-systems.ru (com1.ht-systems.ru [83.97.104.204]) by mx1.FreeBSD.org (Postfix) with ESMTP id B40CE43D4C for ; Fri, 12 May 2006 22:39:38 +0000 (GMT) (envelope-from stas@310.ru) Received: from [213.87.86.30] (helo=fonon.realnet) by com1.ht-systems.ru with esmtpa (Exim 4.62) (envelope-from ) id 1FegH8-0007Xu-4m for freebsd-hackers@freebsd.org; Sat, 13 May 2006 02:38:23 +0400 Date: Sat, 13 May 2006 02:39:19 +0400 From: Stanislav Sedov To: freebsd-hackers@freebsd.org Message-ID: <20060512223919.GA21382@fonon.realnet> References: <20060512220019.GA1911@silverwraith.com> MIME-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: <20060512220019.GA1911@silverwraith.com> User-Agent: mutt-ng/devel-r581 (FreeBSD) X-Spam-Flag: SKIP X-Spam-Yversion: Spamooborona 1.5.2 Subject: Re: no core file handler recognizes format X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 May 2006 22:39:39 -0000 On Fri, May 12, 2006 at 03:00:19PM -0700, Avleen Vig wrote: > My 6.0 box[1], and now my 6.1 box[1] have been crashing almost daily, > due to page faults. Last night I was lucky enough to see it happen on > screen, where it reported a "Page not present" error. > > When I try to look at the code file in GDB, I get this error: > > warning: "/usr/home/avleen/vmcore.0": no core file handler recognizes > format, using default > Can't fetch registers from this type of core file > Can't fetch registers from this type of core file > #0 0x00000000 in ?? () > > > I did see a message from a few months ago which stated the userworld > could be out of step with the kernel becaus the core file format changed > at some point, but I've been building the kernel and world together for > 6.0 and 6.1. > > Any suggestions befoer I downgrade to 5.4? > You should use kgdb rather the gdb. GDB doesn't recognizes kernel dumps format by default. -- --------------------------------------------------------------------- Stanislav Sedov MBSD labs, Inc. If the facts don't fit the theory, change the facts. -- A. Einstein ---------------------------------------------------------------------