From owner-freebsd-amd64@FreeBSD.ORG Wed Jan 5 19:48:48 2005 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6217916A4CE for ; Wed, 5 Jan 2005 19:48:48 +0000 (GMT) Received: from smtp2.enst.fr (revol1.enst.fr [137.194.32.27]) by mx1.FreeBSD.org (Postfix) with ESMTP id C09F843D48 for ; Wed, 5 Jan 2005 19:48:47 +0000 (GMT) (envelope-from beyssac@bofh.enst.fr) Received: from localhost (localhost.enst.fr [127.0.0.1]) by smtp2.enst.fr (Postfix) with ESMTP id 8230A164D8E for ; Wed, 5 Jan 2005 20:48:44 +0100 (CET) Received: from smtp2.enst.fr ([127.0.0.1]) by localhost (revol1.enst.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 64743-02 for ; Wed, 5 Jan 2005 20:48:38 +0100 (CET) Received: from bofh.enst.fr (bofh.enst.fr [137.194.32.191]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "bofh.enst.fr", Issuer "ENST CA" (not verified)) by smtp2.enst.fr (Postfix) with ESMTP id 6EC11164D82 for ; Wed, 5 Jan 2005 20:48:37 +0100 (CET) Received: from bofh.enst.fr (localhost [127.0.0.1]) by bofh.enst.fr (8.13.1/8.13.1) with ESMTP id j05JmbHA085494 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 5 Jan 2005 20:48:37 +0100 (CET) (envelope-from beyssac@bofh.enst.fr) Received: (from beyssac@localhost) by bofh.enst.fr (8.13.1/8.13.1/Submit) id j05JmaU6085493 for freebsd-amd64@freebsd.org; Wed, 5 Jan 2005 20:48:36 +0100 (CET) (envelope-from beyssac) Date: Wed, 5 Jan 2005 20:48:36 +0100 From: Pierre Beyssac To: freebsd-amd64@freebsd.org Message-ID: <20050105194836.GA85467@bofh.enst.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.1i X-message-flag: Warning! Use of Microsoft Outlook makes your system susceptible to worms and viruses X-Virus-Scanned: amavisd-new at enst.fr Subject: RELENG_5 panic: page fault while in kernel mode X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Jan 2005 19:48:48 -0000 Hello, I have the following reproductible panic (during a make release, oddly enough when creating README.html for each port) on a Xeon box (Dell PowerEdge 2850, double Xeon 2.8GHz, 4GB RAM) in amd64 mode. It's a up-to-date RELENG_5. Perhaps the following is related to the crash: the box is equipped with 4GB RAM, 768MBytes of which are situated above the 4G mark and are not accessible (causing a warning in i386 mode except with PAE which hangs at boot, but that is another story). In amd64 mode, as the kernel doesn't notice the 4G mark/wraparound, I have to force hw.physmem to a (conservative) 3200000000 to get a stable system. Fault trap 12 : page fault while in kernel mode Instruction pointer: 0x8:0xffffffff80334a78 Fault address 0x1c0 Process: sh 0xffffffff80334a60 : mov %gs:0x3c,%eax 0xffffffff80334a68 : test %rdi,%rdi 0xffffffff80334a6b : je 0xffffffff80334a80 0xffffffff80334a6d : mov 0x0(%rdi),%rdx 0xffffffff80334a71 : mov 0x118(%rdx),%rdx -> 0xffffffff80334a78 : lock btr %eax,0x1c0(%rdx) 0xffffffff80334a80 : mov 0x1a0(%rsi),%rdx 0xffffffff80334a87 : mov 0x40(%rdx),%rdx 0xffffffff80334a8b : mov %rdx,%cr3 0xffffffff80334a8e : mov 0x0(%rsi),%rdx 0xffffffff80334a92 : mov 0x118(%rdx),%rdx 0xffffffff80334a99 : lock bts %eax,0x1c0(%rdx) 0xffffffff80334aa1 : jmpq 0xffffffff80334bfe -- A: Yes. Pierre Beyssac pb@enst.fr >Q: Are you sure? >>A: Because it reverses the logical flow of conversation. >>>Q: Why is top posting annoying in email?