OpenIndiana Now Has KPTI Support Up For Testing To Mitigate Meltdown
Written by Michael Larabel in Operating Systems on 6 March 2018 at 08:00 AM EST. Add A Comment
The Solaris-derived OpenIndiana operating system now has KPTI (Kernel Page Table Isolation) support for testing to mitigate the Intel Meltdown CPU vulnerability.

Thanks in large part to the work done by Joyent on KPTI support for SmartOS/OmniOSce, the Illumos kernel used by OpenIndiana now has a KPTI implementation for testing. They have spun up some live install images for testing as well as an IPS repository containing a KPTI-enabled kernel build. With this KPTI work is also PCID (Process Context Identifier) support too.

Any Illumos/OpenIndiana users wanting to test out this work for mitigating Meltdown on this open-source Solaris-derived platform, more details over on More background reading is also available via this blog post by one of the involved developers from late February.

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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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