> And even more so, it's IOSQE_ASYNC on the IORING_OP_READ on an eventfd > file descriptor. You probably don't want/mean to do that as it's > pollable, I guess it's done because you just set it on all reads for the > test? yes exactly, eventfd fd is blocking, so it actually makes no sense to use IOSQE_ASYNC I just tested eventfd without the IOSQE_ASYNC flag, it seems to work in my tests, thanks a lot :) > In any case, it should of course work. This is the leftover trace when > we should be exiting, but an io-wq worker is still trying to get data > from the eventfd: interesting, btw what kind of tool do you use for kernel debugging? -- Josef