Feeds

Intel denies Core i7 glitch

Bug rumors greatly exaggerated

The Power of One Infographic

Intel was tilting at the internet rumor mill this morning as word circulated that its newly-launched Core i7 chips suffer from a technical glitch similar to the one that previously dogged AMD's Phenom and Opteron cores.

A recent Core i7 software programmer's manual update seems to indicate the chips have some Translation Lookaside Buffer-related issues. But Intel says it isn't so.

From the document in question:

In rare instances, improper TLB invalidation may result in unpredictable system behavior, such as system hangs or incorrect data. Developers of operating systems should take this documentation into account when designing TLB invalidation algorithms. For the processors affected, Intel has provided a recommended update to system and BIOS vendors to incorporate into their BIOS to resolve this issue.

Several months earlier, TLB bugs soured AMD's launch of its four-core Opteron chips despite the company's shouts it wouldn't manifest in real world conditions.

With inklings of similar Core i7 problems, cue jokes about Intel copying AMD's chip design so faithfully, they took the errors along too.

Intel spokesman George Alfs tells El Reg the incriminating paragraph relates to a Core 2 Duo issue which was fixed via a BIOS update before the launch of the Core i7. The programmer's manual was first written in April 2007 and hasn't been properly pruned.

Chipzilla said the original reporter didn't contact the company before reporting the alleged problem. ®

Top three mobile application threats

More from The Register

next story
NEW Raspberry Pi B+, NOW with - count them - FOUR USB ports
Composite vid socket binned as GPIO sprouts new pins
Child diagnosed as allergic to iPad
Apple's fondleslab is the tablet dermatitis sufferers won't want to take
Microsoft takes on Chromebook with low-cost Windows laptops
Redmond's chief salesman: We're taking 'hard' decisions
For Lenovo US, 8-inch Windows tablets are DEAD – long live 8-inch Windows tablets
Reports it's killing off smaller slabs are greatly exaggerated
Seventh-gen SPARC silicon will accelerate Oracle databases
Uncle Larry's mutually-optimised stack to become clearer in August
EU dons gloves, pokes Google's deals with Android mobe makers
El Reg cops a squint at investigatory letters
prev story

Whitepapers

Top three mobile application threats
Prevent sensitive data leakage over insecure channels or stolen mobile devices.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Mobile application security vulnerability report
The alarming realities regarding the sheer number of applications vulnerable to attack, and the most common and easily addressable vulnerability errors.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.