Tecnología

Microsoft says Meltdown and Spectre fixes will slow some PCs down significantly

Microsoft says Meltdown and Spectre fixes will slow some PCs down significantly

But on Thursday, the company released a statement changing its stance and revealed that its products are likely to be vulnerable to both varients of the Spectre flaw. Many of these processors are central to storage systems. "In particular, we want to thank the Google Project Zero team for practicing responsible disclosure, creating the opportunity for the industry to address these new issues in a coordinated fashion". After the patches have been issued for the more recent chips, the processor giant said it will then focus on fixing the older chips. These threats seek to circumvent the microprocessor architecture controls that preserve secure data.

AMD has published an update on its processor security in the wake of the Spectre and Meltdown saga. "We have defined additional steps through a combination of processor microcode updates and OS patches that we will make available to AMD customers and partners to further mitigate the threat".

"We have received reports from a few customers of higher system reboots after applying firmware updates", Navin Shenoy, executive vice president and general manager of Intel's data center group, said in the statement.

The magnitude of the Meltdown/Spectre debacle is yet to be truly understood.

The architecture flaws first came to light for vendors in mid-2017.

The real change in AMD's position is with GPZ Variant 2 (Branch Target Injection or Spectre).

Meltdowns, suspect share dealing and class-action suits, it's been an interesting 2018 for Intel so far, and it doesn't seem to be getting better quickly.

Timely adoption of software and firmware patches by consumers and system manufacturers is critical, said Krzanich, adding that transparent and timely sharing of performance data by hardware and software developers is essential to rapid progress.

Major cloud providers, AWS, Google and Microsoft say that, for the majority of workloads, customers should not notice a difference in performance following the updates. Sadly, the company has been forced to confirm a flaw in the fix for the flaw which is causing systems based on the company's older Haswell and Broadwell microarchitectures to randomly reboot.

However, the Wall Street Journal reports that Intel is quietly advising some customers to hold off installing patches because some of the patches have bugs of their own. Ryzen and EPYC processor microcode updates will be available this week - from both system and OS vensors. Should customers choose to install updates to protect against issues stemming from untrusted code running on those machines, there will be a more significant performance impact, Myerson wrote.