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Date:      Tue, 02 Aug 2011 01:03:17 -0700
From:      perryh@pluto.rain.com
To:        cpghost@cordula.ws
Cc:        yuri@rawbw.com, freebsd-questions@freebsd.org
Subject:   Re: Xorg at 100%CPU when browser is on
Message-ID:  <4e37af45.60AhLWRppeiOX3eM%perryh@pluto.rain.com>
In-Reply-To: <CADGWnjX3vpme9dcv=TnO0jMtu5Aappwu6tNuTC=dDkaXgmwfQQ@mail.gmail.com>
References:  <4E364E1C.7040800@rawbw.com> <CADGWnjX3vpme9dcv=TnO0jMtu5Aappwu6tNuTC=dDkaXgmwfQQ@mail.gmail.com>

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"C. P. Ghost" <cpghost@cordula.ws> wrote:

> ... when mplayer plays some (rare) video files.
>
> Xorg then stays at 100% CPU, and it is impossible to kill it,
> neither from the inside, nor from the outside (logged in via
> ssh) with SIGKILL. Only a reboot helps here.

An unkillable process is almost certainly hung in a driver, and in
this case I would strongly suspect it is a video driver.  Can you
break to KDB (or get a dump) and get a ps listing and a traceback
of the hung process?  That may enable someone familiar with the
particular driver involved to debug it.



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