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Date:      Thu, 8 Jul 2010 13:09:07 -0700 (PDT)
From:      Doug Barton <dougb@FreeBSD.org>
To:        John Baldwin <jhb@freebsd.org>
Cc:        Yuri Pankov <yuri.pankov@gmail.com>, =?ISO-8859-15?Q?Ren=E9_Ladan?= <rene@freebsd.org>, freebsd-current@freebsd.org, David Naylor <naylor.b.david@gmail.com>
Subject:   Re: nvidia-driver crashing kernel on head
Message-ID:  <alpine.BSF.2.00.1007081304590.5061@yncgbc.qbhto.arg>
In-Reply-To: <201007080826.32764.jhb@freebsd.org>
References:  <201007021146.46542.naylor.b.david@gmail.com> <AANLkTimT4UwDzB6jF2eML4U7jQubOs1slwBPHwy_5U3b@mail.gmail.com> <201007021855.42103.naylor.b.david@gmail.com> <201007080826.32764.jhb@freebsd.org>

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On Thu, 8 Jul 2010, John Baldwin wrote:

> These freezes and panics are due to the driver using a spin mutex instead of a
> regular mutex for the per-file descriptor event_mtx.  If you patch the driver
> to change it to be a regular mutex I think that should fix the problems.

Can you give an example? :) I don't mind creating a patch for all of 
them if you can illustrate what needs to be changed.


Doug (not a mutex type of person)

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