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Date: Mon, 6 Mar 1995 08:46:58 -0500
From: starkhome!gene@sbstark.cs.sunysb.edu (Gene Stark)
Message-Id: <199503061346.IAA03940@starkhome.cs.sunysb.edu>
To: davidg@Root.COM
CC: current@FreeBSD.org, dyson@Root.COM
In-reply-to: David Greenman's message of Sun, 05 Mar 1995 18:45:07 -0800 <199503060245.SAA00283@corbin.Root.COM>
Subject: Page fault panics during make world in -current 
Sender: current-owner@FreeBSD.org
Precedence: bulk

In vfs_bio.c, line 758:

	for (toff = 0; toff < vp->v_mount->mnt_stat.f_iosize; toff += tinc) {
		int mask;

-->		m = vm_page_lookup(obj, trunc_page(toff + off));
		if (!m)
			return 0;
		if (vm_page_is_valid(m, toff + off, tinc) == 0)
			return 0;
	}

The VM object obj is not locked, contrary to the comment preceding
the definition of vm_page_lookup().  Potentially a problem?

							- Gene