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Message-ID: <429A088B.1090405@radiotube.org>
Date: Sun, 29 May 2005 20:23:07 +0200
From: Jan-Espen Pettersen <sigsegv@radiotube.org>
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To: Ian Dowse <iedowse@iedowse.com>
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Cc: freebsd-usb@freebsd.org
Subject: Re: ulpt_tick after close
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Ian Dowse wrote:

>In message <42998B18.8020806@radiotube.org>, Jan-Espen Pettersen writes:
>  
>
>>I think I'll replace that printf with a panic in ulpt_read_cb to get a 
>>backtrace next time. (And at the same time update my sources) As it 
>>would reveal what is actually calling ulpt_read_cb after the callout has 
>>been stopped. The problem is that this is very unlikely to happen during 
>>a single print job, but it does over time, so it might take me some time 
>>to get that backtrace.
>>    
>>
>
>Thanks for the details. By the way, is it lpd or something else
>that is actually accessing the ulpt device? Below is a patch you
>could try that will hopefully find out a bit more about what is
>going on. You could also change the new return statement in
>ulpt_read_cb() to a panic, as the stack trace might reveal more
>information like you say.
>  
>
It is cups from ports.

Thank you very much.
Jan-Espen Pettersen