On Thu, Jun 17, 2021 at 10:56:53AM -0600, Jens Axboe wrote: > On 6/17/21 10:48 AM, Jens Axboe wrote: > > On 6/17/21 5:17 AM, Ming Lei wrote: > >> Hello, > >> > >> fio hangs when running the test[1], and doesn't observe this issue > >> when running a > >> such single job test. > >> > >> v5.12 is good, both v5.13-rc3 and the latest v5.13-rc6 are bad. > >> > >> > >> [1] fio test script and log > >> + fio --bs=4k --ioengine=io_uring --fixedbufs --registerfiles --hipri > >> --iodepth=64 --iodepth_batch_submit=16 > >> --iodepth_batch_complete_min=16 --filename=/dev/nvme0n1 --direct=1 > >> --runtime=20 --numjobs=4 --rw=randread > >> --name=test --group_reporting > >> > >> test: (g=0): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) > >> 4096B-4096B, ioengine=io_uring, iodepth=64 > >> ... > >> fio-3.25 > >> Starting 4 processes > >> fio: filehash.c:64: __lookup_file_hash: Assertion `f->fd != -1' failed. > >> fio: pid=1122, got signal=6 > >> ^Cbs: 3 (f=0): [f(1),r(1),K(1),r(1)][63.6%][eta 00m:20s] > > > > Funky, would it be possible to bisect this? I'll see if I can reproduce. > > Actually, this looks like a fio bug, that assert is a bit too trigger > happy. Current -git should work, please test and see if things work. > I believe it's just kernel timing that causes this, not a kernel issue. Yeah, current -git does work, thanks the fix! -- Ming
