Hello, On Fri, 10 Mar 2017 13:27:57 -0800, Kevin Hilman wrote: > This board seems to never have successfully booted for > stable/linux-4.4.y: > https://kernelci.org/boot/id/58c2a47559b51483e7645541/ It does: https://kernelci.org/boot/id/58b457dc59b514bc145e8e4c/ The problem is not 4.4, but the CONFIG_SMP=n. It also fails with other kernel versions, and is a bug we need to investigate. See https://kernelci.org/boot/id/58c2952159b514785a645536/, which is the same failure, but on 4.9, also due to CONFIG_SMP=n. I guess it's yet another I/O coherency issue, I'll try to have a look. Best regards, Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com