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Date:      Fri, 6 Dec 2002 05:00:28 -0800
From:      Maxime Henrion <mux@freebsd.org>
To:        Doug Barton <DougB@FreeBSD.org>
Cc:        freebsd-current@FreeBSD.org
Subject:   Re: nvidia drivers hate me
Message-ID:  <20021206130027.GD98921@elvis.mu.org>
In-Reply-To: <20021206024746.F667-100000@master.gorean.org>
References:  <20021206024746.F667-100000@master.gorean.org>

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Doug Barton wrote:
> The native nvidia drivers work great in RELENG_4 with my geforce 4 mmx,
> but in -current they hate me. I just upgraded to the latest -current and
> I'm using XFree compiled on -current, no joy. It's always the same error:
> 
> panic: bremfree: bp 0xc7751bb8 not locked

This is not the real panic(), the real one is an assertion failure in
vm_page_wire().  In -CURRENT, vm_page_wire() should be called with the
page queue mutex held.  The nVidia driver lacks a fair amount of
vm_page_lock_queues() calls, and I wouldn't be surprised if it was
missing more things, with respect to locking.

Cheers,
Maxime

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