AMD slapped with class-action suit over 'wrongful' handling of Spectre flaw

AMD slapped with class-action suit over 'wrongful' handling of Spectre flaw

AMD slapped with class-action suit over 'wrongful' handling of Spectre flaw

Intel now says that 90 percent of its chips that were affected by these exploits have received patches.

He claims that AMD's initial reaction to the flaw, which saw it declare that Spectre posed "near zero risk" to its chips before admitting that its processors were, in fact, affected by both variants of the vulnerability, resulted in AMD's stock prices first spiking, then falling. As you may know, the company said that it would issue firmware updates for all its processors from the past five years by the end of the month, but the company already acknowledged some issues last week. As I noted in my blog post last week, while the firmware updates are effective at mitigating exposure to the security issues, customers have reported more frequent reboots on firmware updated systems.

Intel said it is working with customers to address use cases that result in significant performance losses after the Meltdown and Spectre patches are applied.

The chip giant then added that "similar behavior" occurs on some machines which have still-older Sandy Bridge and Ivy Bridge (2nd and 3rd-gen) processors, but more worryingly, newer Skylake and Kaby Lake CPUs (6th and 7th-gen).

Tests were conducted by the company on Intel's Skylake two-socket Xeon processor systems, its latest server microarchitecture.

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Intel has also updated its original Meltdown-Spectre advisory with a new warning about the stability issues and recommends OEMs and cloud providers test its beta silicon microcode updates before final release. A data center benchmark test simulating a stock exchange showed a 4 percent impact, while tests using the Storage Performance Development Kit (SPDK), which "provide a set of tools and libraries for writing high performance, scalable, user-mode storage applications", showed workload speeds reduced by up to 25 percent.

Intel issued the update as part of a broader update on the performance impact of the patches on data center workloads.

There is a large variance in the fix's impact on data-storage systems depending on CPU utilization and other factors, such as the read-write mix, block size, and drives.

Google last week urged the whole industry to adopt Retpoline because it mitigated the attack but had nearly no negative performance impact on current hardware.

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