started experimenting with sqpoll and my fastpoll accepts started failing. was banging my head against the wall for a few hours... wrote this test case below.... basically fastpoll accept only works without sqpoll, and without adding IOSQE_FIXED_FILE to the sqe. fails with both, fails with either. these must be bugs? I'm running Clear Linux 5.10.10-1017.native. i hope no one here is allergic to C++, haha. compilation command commented in the gist, just replace the two paths. and I can fold these checks if needed into a liburing PR later. https://gist.github.com/victorstewart/98814b65ed702c33480487c05b40eb56