From owner-freebsd-hackers Wed Mar 27 13:32:53 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by hub.freebsd.org (Postfix) with ESMTP id BCE5137B416; Wed, 27 Mar 2002 13:32:47 -0800 (PST) Received: by elvis.mu.org (Postfix, from userid 1192) id 9C9C8AE1D4; Wed, 27 Mar 2002 13:32:47 -0800 (PST) Date: Wed, 27 Mar 2002 13:32:47 -0800 From: Alfred Perlstein To: Terry Lambert Cc: jeff@freebsd.org, hackers@freebsd.org Subject: Re: uma and double free detection? Message-ID: <20020327213247.GO93885@elvis.mu.org> References: <20020327203236.GN93885@elvis.mu.org> <3CA239BB.A9A8F72A@mindspring.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3CA239BB.A9A8F72A@mindspring.com> User-Agent: Mutt/1.3.27i Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG * Terry Lambert [020327 13:30] wrote: > Alfred Perlstein wrote: > > > > Can uma diagnose double free's? It doesn't seem to be able to > > under a GENERIC config. :( > > THat's an INVARIANTS thing, even without UMA... /usr/src/sys/i386/conf % grep INVA BRIGHT options INVARIANTS #Enable calls of extra sanity checking options INVARIANT_SUPPORT #Extra sanity checks of internal structu All I got was a panic because uma seemed to get confused rather than catch the double free. -- -Alfred Perlstein [alfred@freebsd.org] 'Instead of asking why a piece of software is using "1970s technology," start asking why software is ignoring 30 years of accumulated wisdom.' Tax deductible donations for FreeBSD: http://www.freebsdfoundation.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message