Date: Tue, 22 May 2007 21:29:11 +0200 From: Joerg Sonnenberger <joerg@britannica.bec.de> To: cvs-src@freebsd.org Subject: Re: cvs commit: src/lib/libmemstat memstat_malloc.c Message-ID: <20070522192911.GA11446@britannica.bec.de> In-Reply-To: <20070523042117.G87260@besplex.bde.org> References: <13451.1179852986@critter.freebsd.dk> <20070522130612.A28780@fledge.watson.org> <20070523042117.G87260@besplex.bde.org>
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On Wed, May 23, 2007 at 05:13:46AM +1000, Bruce Evans wrote: > Again, the type mismatches have very little to do with const. libkvm > requires kernel addresses to be represented as unsigned longs, while > libmemstat requires kernel addresses to be represented as "void *"s or > "const void *"s. Neither of these requirements is very good, and > libmemstat's requirement is a regression if anything, since the kernel > address space might be segmented or otherwise magic and thus unrepresentable > by userland pointers. Or more trivially, the kernel address space can be 64bit and the userland 32bit. But I guess that is something noone cared so far. PAE is another good example of why this is not as uncommon as it might seem. Joerghome | help
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