From owner-freebsd-current Sun Oct 6 16:42:21 2002 Delivered-To: freebsd-current@freebsd.org Received: from green.bikeshed.org (freefall.freebsd.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id 994C737B401 for ; Sun, 6 Oct 2002 16:42:19 -0700 (PDT) Received: from green.bikeshed.org (qxgeioyr5md1euxx@green.bikeshed.org [10.0.0.1] (may be forged)) by green.bikeshed.org (8.12.6/8.12.6) with ESMTP id g96NgJZw001066 for ; Sun, 6 Oct 2002 19:42:19 -0400 (EDT) (envelope-from green@green.bikeshed.org) Received: from localhost (green@localhost) by green.bikeshed.org (8.12.6/8.12.6/Submit) with ESMTP id g96NgIoA001063 for ; Sun, 6 Oct 2002 19:42:19 -0400 (EDT) Message-Id: <200210062342.g96NgIoA001063@green.bikeshed.org> X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 To: current@FreeBSD.org Subject: kernel panic trying to utilize a da(4)/umass(4) device with ohci(4) From: Brian Fundakowski Feldman Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sun, 06 Oct 2002 19:42:18 -0400 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG I can't get more info because crash dumps don't work when this happens, but for what it's worth, here's a traceback which shows what happens when I attempt to use my da0: Removable Direct Access SCSI-2 device on an OHCI-based controller. This was working just a few days ago with a UHCI controller, so ... The crash is from an invalid read at 0xbff3e000, which is PTmap plus some offset. The trace as far as I can get it, from a kernel with USB but no "options" enabled, would be: ohci_alloc_std_chain+0xf5 (calling a DMAADDR() function, I believe) ohci_device_bulk_start+0x0d ohci_device_bulk_transfer+0x27 usbd_transfer+0xc0 umass_setup_transfer+0x4f umass_bbb_state usb_transfer_complete ohci_softintr Can anyone confirm if this is normal or I have an exceptional system? I have two completely unrelated OHCI-based controllers in my system and neither works. -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org <> bfeldman@tislabs.com \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message