Comment 13 for bug 1702910

There's a discussion here possibly about the same problem:

  https://patchwork.ozlabs.org/patch/801533/

And they referred to this patch:

  https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=242d3a49a2a1a71d8eb9f953db1bcaa9d698ce00

The changes look like they line up with the call trace order, but I could be wrong.