From owner-freebsd-current@FreeBSD.ORG Wed Apr 22 05:51:05 2009 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 333F61065674; Wed, 22 Apr 2009 05:51:05 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from harmony.bsdimp.com (bsdimp.com [199.45.160.85]) by mx1.freebsd.org (Postfix) with ESMTP id C9E078FC1E; Wed, 22 Apr 2009 05:51:04 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.14.2/8.14.1) with ESMTP id n3M5lJ5i071084; Tue, 21 Apr 2009 23:47:19 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Tue, 21 Apr 2009 23:48:23 -0600 (MDT) Message-Id: <20090421.234823.-4293171.imp@bsdimp.com> To: gperez@entel.upc.edu From: "M. Warner Losh" In-Reply-To: <41877.147.83.40.213.1240324705.squirrel@webmail.entel.upc.edu> References: <49ED3E7D.8080606@gddsn.org.cn> <41877.147.83.40.213.1240324705.squirrel@webmail.entel.upc.edu> X-Mailer: Mew version 5.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: usb@freebsd.org, current@freebsd.org, wsk@gddsn.org.cn Subject: Re: boot panic on current(04.20) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Apr 2009 05:51:06 -0000 In message: <41877.147.83.40.213.1240324705.squirrel@webmail.entel.upc.edu> "Gustavo Perez Querol" writes: : > lists : > boot panic on current(2009.04.20).it seems caused by usbus4 : > : > Root mount waiting for: usbus4 : > uhub4: 8 ports with 8 removable, self powered : > Root mount waiting for: usbus4 : > ugen4.2: at usbus4 : > Fatal trap 12: page fault while in kernel mode : > cpuid = 0; apic id = 00 : > fault virtual address = 0x0 : > fault code = supervisor read, page not present : > instruction pointer = 0x20:0xc08ed3a3 : > stack pointer = 0x28:0xe4c38b40 : > frame pointer = 0x28:0xe4c38b44 : > code segment = base 0x0, limit 0xfffff, type 0x1b : > = DPL 0,pres 1, def32 1, gran 1 : > processor eflags = interrupt enabled, resume, IOPL = 0 : > current process = 28 (usbus4) : > trap number = 12 : > panic: page fault : > cpuid = 0 : > uptime: 5s : : I'm having the same problem with my laptop. It fails (if I remember : well) when checkig an device (probably my card reader, don't : know). When rebooting got to loader prompt, unload kernel and load : /boot/kernel.old/kernel. This arrises a few questions : : : 1.- How can I install a custom kernel under a different directory : under /boot. I did it, but I can't find how (google doesn't : help)I did it. I think there's a define when installing the : kernel. make installkernel KERNEL=fred will install the kernel into /boot/fred. Might want to look add # Debugging for use in -current options KDB # Enable kernel debugger support. options DDB # Support DDB. to the kernel so you can get a traceback... : 2.- nextboot allows me to choose a different kernel a give it : options, but is it possible to make the changes permanent ? Not sure. I don't use nextboot. : Well, now I'm csup down to current 18/04. Hope it will work :) : : Excuse me for the previous mail, that webmail I'm using is driving me : more crazy :) Web mail has been known to do that to me too.... :) Warner