From owner-freebsd-hackers@FreeBSD.ORG  Thu Jan  4 18:11:49 2007
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Date: Fri, 5 Jan 2007 01:11:46 +0700
From: Eugene Grosbein <eugen@grosbein.pp.ru>
To: Kostik Belousov <kostikbel@gmail.com>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: WITNESS & RELENG_6
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On Thu, Jan 04, 2007 at 02:12:45PM +0200, Kostik Belousov wrote:

> > > > I've tried. Now machine just hangs if I try to switch from X to vty.
> > > > It stays in graphics mode locked.
> > > Does it crash when exiting glxgears/some video player ?
> > It does not crash now when exiting glxgears but glxgears does not
> > exit really, this process "hangs" in the "devdrn" state.
> As expected.
> > mplayer hangs hard the whole system in the moment it switches to full-screen.
> > > When hangs, does it answer ping/allow ssh connections ?
> > Can't check just now, but can establish serial console if you wish.
> It would be better to check this in both cases (mplayer and return to vty).

I've established ethernet and serial links with this box and checked.
In both cases this is X server locked in "devdrn" state.
All other processes and the kernel run just fine.

> But, most likely, the problem is in nvidia driver that calls destroy_dev()
> from d_close().
> 
> You should ask the vendor for the fix. As a side note, responsible engineer
> is aware of the bug.

So, I need not bother him ones more?

Eugene