Date: Sun, 17 Nov 2002 13:18:00 -0500 From: "Brian F. Feldman" <green@FreeBSD.org> To: current@FreeBSD.org Subject: Re: kernel panic trying to utilize a da(4)/umass(4) device with ohci(4) Message-ID: <200211171818.gAHII1WI008641@green.bikeshed.org> In-Reply-To: Your message of "Sun, 06 Oct 2002 19:42:18 EDT." <200210062342.g96NgIoA001063@green.bikeshed.org>
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Brian Fundakowski Feldman <green@FreeBSD.org> wrote: > 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: <SanDisk ImageMate II 1.30> 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. Anyone? I kinda want to use my CF reader. -- 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
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