Date: Mon, 26 Jun 2006 23:45:35 +0200 From: Wilko Bulte <wb@freebie.xs4all.nl> To: "M.Hirsch" <M.Hirsch@gmx.de> Cc: freebsd-stable@freebsd.org Subject: Re: FreeBSD 6.x CVSUP today crashes with zero load ... Message-ID: <20060626214535.GA94015@freebie.xs4all.nl> In-Reply-To: <44A0538E.6090906@gmx.de> References: <E1FuYsL-000HT3-H2@dilbert.firstcallgroup.co.uk> <20060626100949.G24406@fledge.watson.org> <20060626081029.L1114@ganymede.hub.org> <20060626140333.M38418@fledge.watson.org> <20060626235355.Q95667@atlantis.atlantis.dp.ua> <44A04FD2.1030001@hirsch.it> <20060626212654.GB93703@freebie.xs4all.nl> <44A0538E.6090906@gmx.de>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, Jun 26, 2006 at 11:37:18PM +0200, M.Hirsch wrote.. > Nope, > > I'd like my bank data to be stored on a system that does ECC, no question. > But please, on hard disk level (RAID; that is _permanent_), not in the > RAM of a single node. > > If memory gets corrupted, please, raise a kernel panic... Even if You *can't* panic if it is just a single bit error in a user page. You will never know there was a corruption.. If that was a page holding your account data your are toast. > there's ECC in place. Of course not. You only panic once you have no other options left. Proper hardware with ECC give you these options. I am not talking consumer grade crap here of course. > Counter question: > Would you like your bank account data to be stored on a medium where one > failure can be corrected, two can be detected, but three go unnoticed? > How unlikely is that, if you've got some hardware that is really /broken/? Very unlikely. There is enough hardware design done after all these years that this kind of problem can be prevented. > I know this is a rather random thing to happen. > Still, I think ECC memory is overrated. Better have it fail immediately. > _With a kernel panic, please_ As said, you can't > > M. > > Wilko Bulte schrieb: > > >Balderdash. > > > >Following your rationale you want your bank account data > >silently be corrupted by hardware with bit errors? Be my guest, give > >me ECC any day. > > > >Proper hardware will log the ECC errors, a proper OS tailored to that > >hardware will log and notify the sysadmins. > > > >That is how it should be done. > > > >Wilko > > > > > > --- end of quoted text --- -- Wilko Bulte wilko@FreeBSD.org
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20060626214535.GA94015>