On Monday 02 May 2005 12:36 pm, Brian Beardall wrote: > David Brownell wrote: > I enabled the CONFIG_USB_DEBUG, and this is what I get: > > ohci_hcd 0000:00:07.4: bogus NDP=255, rereads as NDP=4 > irq 10: nobody cared! > [<c01356aa>] __report_bad_irq+0x2a/0x90 > ...
Well that's strange. It would appear that maybe on your board, the erratum #4 workaround isn't adequate. There were multiple revisions of that chip ... maybe you're looking at early ones, with additional errata? > handlers: > [<c0335650>] (ohci_irq_handler+0x0/0x7a0) > [<c034db70>] (usb_hcd_irq+0x0/0x70) > Disabling IRQ #10 In that case it appears like maybe part of the problem is that you've got a FireWire controller on the same IRQ. Try moving that card to another PCI slot; maybe that's making trouble too. > The last message before the IRQ nobody cared is either the NDP error or > I get the hub_port_status failed message. It depends on it attitude at > the time of crash. This may be able to be explained by Erratum #4. If > the root hub were to be reset during use That should never happen. > usb usb1: Product: Advanced Micro Devices [AMD] AMD-756 [Viper] USB > usb usb1: Manufacturer: Linux 2.6.11-gentoo-r6 ohci_hcd How does 2.6.12-rc2 behave? For the usual reasons, most of us don't want to hear about kernels with random patches we didn't provide ... :) - Dave ------------------------------------------------------- This SF.Net email is sponsored by: NEC IT Guy Games. Get your fingers limbered up and give it your best shot. 4 great events, 4 opportunities to win big! Highest score wins.NEC IT Guy Games. Play to win an NEC 61 plasma display. Visit http://www.necitguy.com/?r=20 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
