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Date: Thu, 23 Nov 2000 17:49:52 +0100
From: Georg Acher <acher@in.tum.de>
To: Rui Sousa <rsousa@grad.physics.sunysb.edu>
Cc: Michael Elkins <me@sigpipe.org>, usb@in.tum.de,
        linux-kernel@vger.kernel.org
Subject: Re: PROBLEM: kernel 2.4.0-test11-ac1 hang with usb-uhci and emu10k1
Message-ID: <20001123174952.B7591@in.tum.de>
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        Michael Elkins <me@sigpipe.org>, usb@in.tum.de,
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On Thu, Nov 23, 2000 at 04:35:33PM +0000, Rui Sousa wrote:
> On Thu, 23 Nov 2000, Michael Elkins wrote:
> 
> Usb controller is sharing a interrupt with the emu10k1.
> For what I know the emu10k1 driver doesn't have any problem
> sharing irq's, so I would blame the usb driver...

usb-uhci doesn't also have any problem with sharing irqs:

> cat /proc/interrupts
 10:    5597981          XT-PIC  aic7xxx, eth0, usb-uhci

Hm, no one left to blame...
I would debug it as follows:
Place various printks in the initialization code (reset_hc(), start_hc() and
alloc_uhci) and find out after which printk it hangs. Then it would be
possible to investigate this further...

-- 
         Georg Acher, acher@in.tum.de         
         http://www.in.tum.de/~acher/
          "Oh no, not again !" The bowl of petunias          
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