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Developers told not to panic over new Intel Core 2 Duo steppings

OpenBSD founder Theo de Raadt publicly denounced Intel’s Core 2 processors on the OpenBSD mailing list. Raadt cited 38 pages of processor errata from Intel’s published CPU specifications (PDF).

“These processors are buggy as hell, and some of these bugs don’t just cause development/debugging problems, but will *ASSUREDLY* be exploitable from userland code," Raadt said. "Some of these are things that cannot be fixed in running code, and some are things that every operating system will do until about mid-2008, because that is how the MMU has always been managed on all generations of Intel/AMD/whoeverelse hardware."

Linux coordinator and former Transmeta employee Linus Torvalds, thought otherwise and considers these bugs “totally insignificant.”

Processor errata is nothing new, Torvalds said. Commodity CPUs such as chips based on the Intel Core 2 architecture have a considerably lower bug rate than proprietary boutique CPUs.

“Yeah, x86 errata get more attention," said Torvalds. "But those things are pretty damn well tested. Better than most.”

The errata document specifically mentions the Core 2 Duo E4000, E6000, and X6800 series processors. None of the errata are nearly as insidious or widespread as more infamous problems, like the original Pentium floating-point bug, although some can lead to buffer overflow exploits, claims de Raalt. All of the current errata have patches in the works or can be — and have been — worked around by developers.

In a statement from Intel Global Communications, Nick Knuppfer writes:

“Months ago, we addressed a processor issue by providing a BIOS update for our customers that in no way affects system performance. We publicly documented this as an erratum in April. All processors from all companies have errata, and Intel has a well-known errata communication process to inform our customers and the public. Keep in mind the probability of encountering this issue is extremely low."

“Specification Updates for the affected processors are available at http://developer.intel.com. All errata are thoroughly investigated for issues and vulnerabilities, should they have any we fix them, usually through a microcode update.”


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RE: De Raadt or the nut?
By MeTaedet on 7/3/2007 2:10:22 AM , Rating: 3
Indeed. The mere fact that we have gone to war in the past and that those wars have been far uglier than this current Iraq war by no means justifies this war or this administration's laughably and grossly spurious pretexts for it.

If the war were truly necessary and serving a purpose other than that of making a handful of people very rich, then the casualties caused by U.S. soldiers would perhaps be acceptable, but since this war is nothing more than perfect squandering of money, resources, human life, peace, and happiness, these casualties, serving no high or great purpose, are completely unjustified and criminal; in light of this, the patriotic (I absolutely HATE this word!) thing to do is to protest this war and to speak out against those who have made it their emprise to make money through it - such as Bush, Cheney, many others in the white house, leaders of oil companies, leaders of weapon and armour manufacturing companies, etc...


"I want people to see my movies in the best formats possible. For [Paramount] to deny people who have Blu-ray sucks!" -- Movie Director Michael Bay











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