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From: David Brownell <david-b@pacbell.net>
To: j.derudder@btinternet.com
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: Kernel panic from usb-ohci
Date: Sun, 30 Dec 2001 19:21:04 -0800	[thread overview]
Message-ID: <04b201c191aa$2e84af80$6800000a@brownell.org> (raw)

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



             reply	other threads:[~2001-12-31  3:23 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-12-31  3:21 David Brownell [this message]
  -- strict thread matches above, loose matches on Subject: below --
2001-12-30 23:56 Kernel panic from usb-ohci Jean-Francois De Rudder

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