Am Donnerstag, 8. März 2007 16:55 schrieb Alan Stern:
> Evidently khubd is waiting for an unlink of an URB on usb3 to complete.
> Somehow the fact that usb2 is stopped is causing a problem.
>
> It looks as though there's some weird connection between the two OHCI
> controllers' hardware. A wakeup request on one caused the other to resume
> also. When the other then stopped, the first no longer worked.
>
> Could it be a memory-mapping error? Both sets of registers got mapped to
> the same address? See what dmesg says when you modprobe ohci-hcd, and do
> a detailed comparison between 2.6.21-rc3 and a working kernel.
It works again flawlessly if I _remove_ noapic from the kernel command
line. So it looks like an interrupt problem.
Regards
Oliver
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