On 12/19/20 1:51 PM, Josef wrote: >> 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 Right, and it's pollable too. > 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? Just poking at it and thinking about it, no hidden magic I'm afraid... -- Jens Axboe
