Date: Fri, 18 Sep 2015 00:05:35 +0100 From: Bob Bishop <rb@gid.co.uk> To: Igor Mozolevsky <igor@hybrid-lab.co.uk> Cc: Konstantin Belousov <kostikbel@gmail.com>, Hackers freeBSD <freebsd-hackers@freebsd.org>, Dieter BSD <dieterbsd@gmail.com>, Andriy Gapon <avg@freebsd.org>, freebsd-hardware@freebsd.org Subject: Re: ECC support Message-ID: <A694618D-FE07-4E56-A0E0-890E7C8BD4EE@gid.co.uk> In-Reply-To: <93106DFF-9741-4515-B6E0-AC43C0AF2179@gid.co.uk> References: <CAA3ZYrBXZn1WpHWYGJYWJDPsk7iDahCas8RhnHC4w%2Babf4w4hA@mail.gmail.com> <55F88A18.6090504@FreeBSD.org> <20150916035904.GE67105@kib.kiev.ua> <93871ADA-EDA3-481C-9959-1D371AB44479@gid.co.uk> <CADWvR2gBDjKFRW-X6ECJaGG7tSvOgk0rTk38O1qQ0hUWjRBF_A@mail.gmail.com> <3678FC1E-DDC5-4FB2-B6E9-6FC90D0C988E@gid.co.uk> <CADWvR2ha0-ifBYTswdVF7tzZsHayf%2BKXVdk86S0tuuPmLKj6cg@mail.gmail.com> <93106DFF-9741-4515-B6E0-AC43C0AF2179@gid.co.uk>
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Hi, > On 16 Sep 2015, at 13:04, Bob Bishop <rb@gid.co.uk> wrote: > > >> On 16 Sep 2015, at 12:52, Igor Mozolevsky <igor@hybrid-lab.co.uk> wrote: >> >> […]The only thing I could think of is that the fab process was(/is?) large >> enough to not worry about "nonsense" like cosmic rays &c (but then I've not >> had much exposure to semi-conductor electronics theory since late 90s). >> […] > > Dunno. I’ll ask my tame semiconductor expert when I see him tomorrow… The answer is quite interesting. A few process shrinks ago, alpha particle effects were becoming worryingly intrusive and everybody was concerned how much smaller features on ICs could actually be pushed. Then they did the next process shrink, and the effects disappeared completely! A couple more shrinks later and they still haven’t reappeared. Nobody understands why, but they don’t worry about it any more. >> -- >> Igor M. >> _______________________________________________ >> freebsd-hardware@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-hardware >> To unsubscribe, send any mail to "freebsd-hardware-unsubscribe@freebsd.org" > > -- > Bob Bishop > rb@gid.co.uk > > > >help
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