On Thu, May 17, 2018 at 1:25 PM Alexey Izbyshev <izbyshev@xxxxxxxxx> wrote: > Hello everyone, > I've discovered the following strange behavior of a 4.15.13-based kernel > (bisected to https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1b028f784e8c341e762c264f70dc0ca1418c8b7a > between 4.11-rc2 and -rc3 thanks to Alexander Monakov). It's definitely not intended. Can you confirm that the problem still exists in 4.16? I have some vague recollection that this was a known issue that got fixed, and we could plausibly just be missing a backport.