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Intel's Skylake and Kaby Lake CPUs Have Nasty Microcode Bug

posted by takyon on Monday June 26 2017, @09:35PM   Printer-friendly
from the skylake-axed dept.

"exec" writes:

Arthur T Knackerbracket has found the following story:

During April and May, Intel started updating processor documentation with a new errata note, and over the weekend we learned why: Skylake and Kaby Lake silicon has a microcode bug.

The errata is described in detail on the Debian mailing list, and affects Skylake and Kaby Lake Intel Core processors (in desktop, high-end desktop, embedded and mobile platforms), Xeon v5 and v6 server processors, and some Pentium models.

The Debian advisory says affected users need to disable hyper-threading "immediately" in their BIOS or UEFI settings, because the processors can "dangerously misbehave when hyper-threading is enabled."

Symptoms can include "application and system misbehaviour, data corruption, and data loss".

Henrique de Moraes Holschuh, who authored the Debian post, notes that all operating systems, not only Linux, are subject to the bug.

Also at Tom's Hardware and Ars Technica.

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  • (Score: 2) by Spamalope on Tuesday June 27 2017, @02:22PM (1 child)

    by Spamalope (5233) on Tuesday June 27 2017, @02:22PM (#531911) Homepage

    Haha! His blog is fantastic.

    One of the commenters was annoyed that every time they looked for chemical suppliers a few China based companies spammed the entire supple sites claiming they were suppliers for everything added 'weed out those guys' to the work for every search.

    Someone pointed out he could just order ten pounds and solve his problem. It'd also locate the spammers, as we could find the (former) location of their lab by looking for the crater on google earth. No chance of synthesizing anywhere near that amount without something... energetic happening.

    Starting Score:    1  point
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  • (Score: 0) by Anonymous Coward on Wednesday June 28 2017, @09:08AM

    by Anonymous Coward on Wednesday June 28 2017, @09:08AM (#532336)
    They'll probably take 6 months to send you a packet of salt or similar, then refund you if you weren't satisfied.