Date: Sun, 06 Oct 2002 19:42:18 -0400 From: Brian Fundakowski Feldman <green@FreeBSD.org> To: current@FreeBSD.org Subject: kernel panic trying to utilize a da(4)/umass(4) device with ohci(4) Message-ID: <200210062342.g96NgIoA001063@green.bikeshed.org>
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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. -- 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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