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Re: panic while playing with a ugen
- To: Anish Mistry <mistry_(_dot_)_7_(_at_)_osu_(_dot_)_edu>
- Subject: Re: panic while playing with a ugen
- From: Thierry Herbelot <thierry_(_at_)_herbelot_(_dot_)_com>
- Date: Thu, 1 Jun 2006 06:25:34 +0200
- Cc: freebsd-current_(_at_)_freebsd_(_dot_)_org
- Reply-to: thierry_(_at_)_herbelot_(_dot_)_com
Le Thursday 1 June 2006 01:30, Anish Mistry a écrit :
> On Wednesday 31 May 2006 18:42, Thierry Herbelot wrote:
> > the panic occured when closing one endpoint of a ugen device (the
> > device was disconnecting from the USB bus after being reseted).
>
> I haven't seen this particular panic with ugen before.
> Try the patch in PR: usb/97271. If you've got a test program and
> instructions that can reproduce this panic after applying that patch
> let me know.
>
> Thanks,
>
will do (ASAP)
from a very summary reading of the patch, it seems that the panic I saw is a
deeper FreeBSD problem, where a si_devsw may have correctly been emptied as
the underlying physical object has been unplugged, and still some code is
blindly unreferencing the structure and its members (to be confirmed).
TfH
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