The Linux 4.2 Mainline Kernel From Ubuntu Is Finally Working Again
Written by Michael Larabel in Ubuntu on 18 July 2015 at 08:52 AM EDT. Add A Comment
UBUNTU --
After the Linux Git kernel built by the Ubuntu Mainline Kernel PPA failed to work for the past two weeks, the kernel should now be bootable again.

Since even before 4.2-rc1 was released, the kernel wasn't bootable on many systems in our test lab at Phoronix and LinuxBenchmarking.com.

After the issue persisted for more than two weeks, I made some kernel automation improvements to Phoromatic and the Phoronix Test Suite to figure out the root cause of the issue. I wrote about what in Ubuntu's kernel configuration was messing up so many systems.


One day after making those details public, there was a Launchpad bug report about this issue, and now it seems resolved as the kernels in the past day or two are working again... The fix, as the workaround mentioned in the article earlier this week, was to disable CONFIG_OF for x86-64 kernels.

My daily kernel test systems are now back to chugging along. You'll then be able to catch up with all of the daily Linux kernel Git benchmarks over on LinuxBenchmarking.com.
About The Author
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Michael Larabel is the principal author of Phoronix.com 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 OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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