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From: Rashid  Karimov <rashid@rk.ios.com>
Message-Id: <199602272222.RAA04403@rk.ios.com>
Subject: Severe "free vnode isn't" problem
To: hackers@freebsd.org
Date: Tue, 27 Feb 1996 17:22:10 -0500 (EST)
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		Hi there ppl,



	New server here (P6-200/256Mb RAM) crashed at least 2
	times today with this panic message, so I've applied
	the patch Terry Lambert proposed here ~1-1.5 mos ago:

(file vfs_subr.c):

> My guess from the -curent code is:
>
> It's probably most correctly fixed by changing:
>
>       vp == NULL)
> To:
>       vp == NULL ||       /* list empty*/
>       vp->v_usecount)     /* queue wrapped*/
>
> Or something similar using one of the circular queue macros.  Then
> remove the stupid:
>
>       if (vp->v_usecount)
>           panic("free vnode isn't");


	System works for an hour now and I wonder if this thing
is kosher and whether we have some new knowledge on this 
problem ?



Rashid