Date: Tue, 26 Apr 2011 11:36:31 +0100 From: RW <rwmaillists@googlemail.com> To: freebsd-questions@freebsd.org Subject: Re: Password theft from memory? Message-ID: <20110426113631.54dc02a9@gumby.homeunix.com> In-Reply-To: <20110426104853.00005460@unknown> References: <BANLkTimJWAxW_4OmoeBQrvDDLjD-5Vr5hQ@mail.gmail.com> <BANLkTin_S%2BBRWu79AH16tPdgZd%2BUgZQAzQ@mail.gmail.com> <20110425151846.0a5359fd@gumby.homeunix.com> <20110425151536.GA61425@stainmore> <BANLkTinvvWhEy_A5ao=XWTpQOSTX0Vm2_A@mail.gmail.com> <20110425175420.GA61811@stainmore> <20110425232908.4104e026@gumby.homeunix.com> <20110426104853.00005460@unknown>
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On Tue, 26 Apr 2011 10:48:53 +0100 Bruce Cran <bruce@cran.org.uk> wrote: > On Mon, 25 Apr 2011 23:29:08 +0100 > RW <rwmaillists@googlemail.com> wrote: > > > The reason I thought that heap memory isn't zeroed is from the > > discussion of pre-zeroed pages in this article: > > There's an idlezero task that runs by default (via > the vm.idlezero_enable sysctl), zeroing unused pages, That's pretty much what the article is describing. It's actually *off* by default in 8.2 because it causes lock-ups.
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