Re: Kernel panic from usb-ohci

David Brownell (david-b@pacbell.net)
Sun, 30 Dec 2001 19:21:04 -0800


The problem is the driver you're using on top of usb-ohci,
seemingly whatever talks to that ADSL modem. It might
be fixed in a more recent kernel, I wouldn't know.

> usb-ohci.c : bus 00:0c.0 devnum 2 deletion in interrupt
> Kernel BUG at usb_ohci.c: 886!

As it says in the comment on line 884, the problem is likely
(all but certainly) that "some interface's driver has a refcount
bug". Specifically, the OHCI driver is being told the device
has gone away. Because it's in_interrupt(), that's a lie ...
only khubd is allowed to declare that, and of course that can't
ever say that in_interrupt().

- Dave

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