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Date: Wed, 23 Mar 2005 18:19:43 +0100
From: Radek Kozlowski <radek@raadradd.com>
To: Marwan Burelle <Marwan.Burelle@lri.fr>
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cc: freebsd-stable@freebsd.org
Subject: Re: Panic after plugging in an mp3 usb player, 5.4-PRERELEASE
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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