On 9/7/20 4:23 AM, Josef wrote: >> On top of that, capabilities will also be reduced from root to >> CAP_SYS_NICE instead, and sharing across rings for the SQPOLL thread >> will be supported. So it'll be a lot more useful/flexible in general. > > oha that's nice, I'm pretty excited :) > > I'm just wondering if all op are supported when the SQPOLL flag is > set? the accept op seems to fail with -EINVAL, when I enable SQPOLL > > to reproduce it: > https://gist.github.com/1Jo1/accb91b737abb55d07487799739ad70a > (just want to test a non blocking accept op in SQPOLL mode) Yes, that is known, you cannot open/close descriptors with the SQPOLL that requires fixed files, as that requires modifying the file descriptor. 5.10 should not have any limitations. -- Jens Axboe