From owner-freebsd-arch  Thu Apr 19  5:46: 3 2001
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Date: Thu, 19 Apr 2001 22:44:12 +1000 (EST)
From: Bruce Evans <bde@zeta.org.au>
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To: Peter Pentchev <roam@orbitel.bg>
Cc: Matt Dillon <dillon@earth.backplane.com>,
	Alfred Perlstein <bright@wintelcom.net>,
	Terry Lambert <tlambert@primenet.com>, arch@FreeBSD.ORG
Subject: Re: Found BAD BUG: squashed
In-Reply-To: <20010419105902.B3605@ringworld.oblivion.bg>
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On Thu, 19 Apr 2001, Peter Pentchev wrote:

> Would there be any bad implications of upping cr_ref to 32-bit before 4.3?
> Besides binary compatibility?  (I know, I know.. recompiling third-party
> kernel modules and all..)

It's hard to tell with only 1 day to test :-).  Non-bloatage of the struct
makes bugs less obvious.  If not all the modules are compiled, then some
modules may provide (nonzero) garbage in the padding after cr_ref.  This
will be interpreted as a large refcount by new kernels and ucreds will
never be freed.

Bruce


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