On Wed, Nov 29, 2017 at 11:56:05AM -0600, Julia Cartwright wrote: > fixup_owner() used to have additional seemingly relevant checks in place > that were removed 73d786bd043eb ("futex: Rework inconsistent > rt_mutex/futex_q state").
*groan*... yes. I completely missed that extra case also applied to requeue_pi (requeue always did hurt my brain). I got as far as actually understanding the problem; but its near 1am and I desperately need a sleep, I'll see if I can come up with a solution tomorrow. I just wanted to let you know I finally got around to looking at this..