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Date:      Wed, 23 Mar 2005 14:45:56 -0500
From:      "J. T. Farmer" <jfarmer@goldsword.com>
To:        freebsd-stable@freebsd.org
Subject:   Re: Panic after plugging in an mp3 usb player, 5.4-PRERELEASE
Message-ID:  <4241C774.4050401@goldsword.com>
In-Reply-To: <20050323171943.GG557@werd>
References:  <20050322134837.GE557@werd> <20050322142806.GA21833@pc5-179.lri.fr> <20050323171943.GG557@werd>

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Radek Kozlowski wrote:

>On Tue, Mar 22, 2005 at 03:28:06PM +0100, Marwan Burelle wrote:
>  
>
>>On Tue, Mar 22, 2005 at 02:48:37PM +0100, Radek Kozlowski wrote:
>>    
>>
>>>My 5.4-PRERELEASE/i386 as of today panics almost immediately after
>>>plugging in an mp3 usb player (Qware BeatZkey! Pro 512MB). I don't have
>>>device ehci in the kernel.
>>>      
>>>
>>It's a common problem with some USB devices. You have to add some
>>quirk in sys/cam/scsi/scsi_da.c for your player.
>>
>>See more information at :
>>    http://www.root.org/~nate/freebsd/quirks.html
>>
>>I've got the same problem with mine, adding the rigth quirk
>>(DA_Q_NO_SYNC_CACHE for me) solves it. The difficult part is to think
>>out what to put to capture your player (and not the others ... )
>>    
>>
>
>Adding DA_Q_NO_SYNC_CACHE did the trick, thanks for the tip!
>
>-Radek
>  
>
Is there any mechanism in place (other than sending a pr) to capture these
quirks for different devices?  I'm used to having to compile different
things to get what I want, but truthfully, I would much rather have it just
work out of the box...

Also, if the quirks are collected then perhaps that will lead to cleaner
handling of devices oddities....

John

----------------------------------------------------------------------
John T. Farmer            Owner & CTO                GoldSword Systems
jfarmer@goldsword.com     865-691-6498               Knoxville TN
    Consulting, Design, & Development of Networks & Software



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