On 02/02/2021 05:36, Victor Stewart wrote: > 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 Please don't forget about checking error codes. At least fixed files don't work for you because of int fds[10]; memset(fds, -1, 10); // 10 bytes, not 10 ints So io_uring_register_files() silently fails. For me, all two "with SQPOLL" tests spit SUCCESS, then it hangs. But need to test it with upstream to be sure. -- Pavel Begunkov
