Date: Sun, 16 Jun 2002 15:46:41 -0700 (PDT) From: John Polstra <jdp@polstra.com> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: obrien@FreeBSD.ORG, freebsd-hackers@FreeBSD.ORG, freebsd-current@FreeBSD.ORG, Alfred Perlstein <bright@mu.org> Subject: Re: rtld-elf patches for non-i386 architectures (review / test r Message-ID: <XFMail.20020616154641.jdp@polstra.com> In-Reply-To: <200206162211.g5GMBgri042006@apollo.backplane.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Matthew Dillon wrote: >: >:Why memset(3) the anon memory to zero, isn't that what it's supposed >:to be initialized to anyway? >: >:-- >:-Alfred Perlstein [alfred@freebsd.org] > > I was just being ultra-conservative. You are absolutely correct > in regards to the anonymous area already being zero. I would like > to commit with the memset()'s in just for uniformity and then make > another pass to remove them. (there's no real issue of cpu waste > since we are going to take faults on the anonymous pages anyway). Sounds OK to me, although I worry a little bit about relying on the zeroing of the memory by mmap. I don't see it documented in the man page, so there's a (slight) risk that somebody could remove that feature in the future. John To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?XFMail.20020616154641.jdp>