From owner-freebsd-stable Wed Mar 12 7:26:58 2003 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3191837B401 for ; Wed, 12 Mar 2003 07:26:56 -0800 (PST) Received: from netlx014.civ.utwente.nl (netlx014.civ.utwente.nl [130.89.1.88]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9FD7C43F3F for ; Wed, 12 Mar 2003 07:26:54 -0800 (PST) (envelope-from g.vandalum@student.utwente.nl) Received: from puinhoop.student.utwente.nl (licht.student.utwente.nl [130.89.169.80]) by netlx014.civ.utwente.nl (8.11.4/HKD) with ESMTP id h2CFQpB08705 for ; Wed, 12 Mar 2003 16:26:51 +0100 Received: from [127.0.0.1] (localhost [127.0.0.1]) by puinhoop.student.utwente.nl (Postfix) with ESMTP id E8B7930F22 for ; Wed, 12 Mar 2003 16:26:50 +0100 (CET) Subject: Re: USB storage devices and booting From: "G. van Dalum" To: freebsd-stable@freebsd.org In-Reply-To: <1047465545.1615.34.camel@server> References: <200303101424.h2AEOFQp038066@whizzo.transsys.com> <1047465545.1615.34.camel@server> Content-Type: text/plain Organization: Message-Id: <1047482810.908.2.camel@server> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 Date: 12 Mar 2003 16:26:50 +0100 Content-Transfer-Encoding: 7bit X-UTwente-MailScanner: Found to be clean Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG i forgot: my system hangs and reboots when if i don't remove my usb flash memory drive after reattaching it guus On Wed, 2003-03-12 at 11:39, G. van Dalum wrote: > I tried to attach a usb storage device last week it did not work > correctly and i searched the net for a solution as i am a bit of a > newbee and i didn't want to ask stupid questions on this or other lists. > As i read the discussion on usb devices i thought my problem my be > relevant so here it is: > > when i attach a usb flash storage device to my computer before booting > it gets detected all right and i can mount it but reading and writing > doesn't work > vm_fault: pager read error, pid 1000 (cp) > i don't have any scsi devices attached to my system exept the umass > device > > when i detach it and reattach it i get these messages > umass0: BBB reset failed, TIMEOUT > umass0: BBB bulk-in clear stall failed, TIMEOUT > umass0: BBB bulk-out clear stall failed, TIMEOUT > > i have set sysctl kern.cam.da.no_6_byte=1 > > why is the usb device detected ok during boot and not after? > > Guus > > > > On Mon, 2003-03-10 at 15:24, Louis A. Mamakos wrote: > > While testing a fix to a USB driver a little while ago, I ran into a > > weird but explainable situation. Say, for example, you've got a FreeBSD > > system with one or more SCSI disks, and with the root partition on > > one of those disks. The loader passes along a hint as to which device > > the kernel should mount as the root partition, and away we go. > > > > Now, boot your system with a USB storage device attached. It seems > > to get bound as "da0" before the first SCSI drive has a chance to. > > This results in surprising behavior when you boot and it can't mount > > a root partition off the drive it thought it booted from. > > > > I suppose I could hardwire the SCSI drives in my kernel configuration, > > but that doesn't seem like the right answer. I don't normally boot > > with the USB storage thing plugged in, but it's possible that I might > > leave one attached and then have the system reboot while it's unattended > > and not come back. > > > > Is there a relative priority between the various drivers as they get > > device names allocated from (presumably) the CAM subsystem? > > > > louie > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-stable" in the body of the message > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message