Hi guys,
I'm seeing io_uring queue initialization failing on Alma 9 (see below
for the details). Any hints/suggestions/workarounds?
Regards,
Andrey
[akuzmin@boots ~]$ uname -a
Linux uboots 5.14.0-362.24.2.el9_3.x86_64 #1 SMP PREEMPT_DYNAMIC Sat
Mar 30 14:11:54 EDT 2024 x86_64 x86_64 x86_64 GNU/Linux
[akuzmin@boots ~]$ fio --version
fio-3.35
[akuzmin@boots ~]$ sudo grep io_uring_setup /proc/kallsyms
ffffffffb8fd4ec0 t __pfx_io_uring_setup
ffffffffb8fd4ed0 t io_uring_setup
ffffffffb8fd4f60 T __pfx___ia32_sys_io_uring_setup
ffffffffb8fd4f70 T __ia32_sys_io_uring_setup
ffffffffb8fd4ff0 T __pfx___x64_sys_io_uring_setup
ffffffffb8fd5000 T __x64_sys_io_uring_setup
ffffffffb961d5d8 t io_uring_setup.cold
ffffffffbaab0180 d event_exit__io_uring_setup
ffffffffbaab0220 d event_enter__io_uring_setup
ffffffffbaab02c0 d __syscall_meta__io_uring_setup
ffffffffbaab0300 d args__io_uring_setup
ffffffffbaab0310 d types__io_uring_setup
ffffffffbb2bda48 d __event_exit__io_uring_setup
ffffffffbb2bda50 d __event_enter__io_uring_setup
ffffffffbb2bfb18 d __p_syscall_meta__io_uring_setup
ffffffffbb2c3ab0 d _eil_addr___ia32_sys_io_uring_setup
ffffffffbb2c3ac0 d _eil_addr___x64_sys_io_uring_setup
[akuzmin@boots ~]$ sudo fio --name=randwrite --rw=randwrite
--bsrange=4k-64k --runtime=10 --time_based --group_reporting
--direct=1 --iodepth=64 --numjobs=1 --ioengine=io_uring
--registerfiles=1 --percentage_random=50 --filename=/tmp/file.dat
randwrite: (g=0): rw=randwrite, bs=(R) 4096B-64.0KiB, (W)
4096B-64.0KiB, (T) 4096B-64.0KiB, ioengine=io_uring, iodepth=64
fio-3.35
Starting 1 process
fio: pid=3051, err=1/file:engines/io_uring.c:1047, func=io_queue_init,
error=Operation not permitted
Run status group 0 (all jobs):
Disk stats (read/write):
dm-0: ios=0/0, merge=0/0, ticks=0/0, in_queue=0, util=0.00%,
aggrios=0/0, aggrmerge=0/0, aggrticks=0/0, aggrin_queue=0,
aggrutil=0.00%
sda: ios=0/0, merge=0/0, ticks=0/0, in_queue=0, util=0.00%
