On Wed, 2018-01-17 at 20:31 +1300, Matt Grant wrote: > My guess as a developer this is a release critical show stopper > bug..... Please see https://kernel-handbook.alioth.debian.org/ch-bugs.html#s9.2 and https://wiki.debian.org/DebianKernelReportingBugs for guidance on reporting a bug against the kernel. Ian.