Intel now knows why Spectre and Metldown patches are causing reboots

Meltdown and Spectre fallout leads to first RC9 of a Linux Kernel since 2011

Erm... a little help

The patch wound up causing another problem: It led some PCs to reboot unexpectedly. Assuming testing goes well, we can likely expect Intel to release the fix more broadly.

"We believe it is important for OEMs and our customers to follow this guidance for all of the specified platforms listed below, as they may demonstrate higher than expected reboots and unpredictable system behavior".

Because a patch is incoming, Intel now officially recommends that "OEMs, cloud service providers, system manufacturers, software vendors and end users stop deployment of current versions" of the fix.

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Intel hasn't said when fixed patches will be available for other architectures, but notes that the Broadwell and Haswell fixes should help it address the reboot problems on other platforms. There was no indication of when Intel will release an updated fix, although the industry is very concerned about the ability of attackers to exploit the vulnerabilities.

In a blog post, Intel said new patches for Broadwell and Haswell-based computers - chips that are two generations removed from the current Skylake design - are being tested by "industry partners", which nearly assuredly includes the Big Three cloud computing providers in Amazon Web Services, Microsoft, and Google. "The security of our products is critical for Intel, our customers and partners, and for me, personally". The stability issues were initially thought to be contained to older Broadwell and Haswell chips, but Intel confirmed last week it was also happening on Ivy Bridge, Sandy Bridge, Skylake, and Kaby Lake processors. The patches, which the company spent months crafting, cause computers to reboot more often than normal. Intel says they were "working around the clock to ensure we are addressing these issues". No word on a fix for other processors for now, but the founder will hopefully share more details soon.

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