On Mon, Jun 03, 2002 at 07:17:49PM -0700, Jean Tourrilhes wrote:
> Hi,
>
> It seems that we should test the new USB code. So, I did a bit
> of testing with the various HCD drivers and the irda-usb dongle
> driver. Bad news.
> The agravating circonstances :
> o kernel 2.5.20
> o one IrDA-USB dongle, irda-usb
> o SMP (dual PPro 200)
> o Shared irq with the network card (both ohci/uhci)
>
> ohci-hcd :
> o First Tx URB never complete or timeout
> o Removing module OOPS
>
> usb-uhic-hcd :
> o Deadlock at the end of first IrDA file transfer
> o Tx URB never complete or timeout
> o Whole networking layer frozen
> o Removing module OOPS
>
> uhci-hcd :
> o Deadlock at the beggining of first IrDA file transfer
> o Tx URB never complete or timeout
> o Whole networking layer frozen
> o Removing module OOPS
The "Removing module OOPS" is not a usb problem, see lkml for a patch to
fix this from Pat Mochel.
Other than that, it looks like we should just remove the lot and go back
to the old pre-hcd code :)
Any of the HCD developers want to help fix these problems?
Oh, and does usb-ohci-pci or usb-uhci or uhci in 2.5.20 also cause these
kinds of problems (you can uncomment out their lines in Config.in or
just add the following to your .config and rebuild the drivers/usb/host
directory:
CONFIG_USB_UHCI
CONFIG_USB_OHCI
CONFIG_USB_UHCI_ALT
thanks,
greg k-h
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