Fio sleep forever on second group with ramp_time

[xjtuwjp]

When I run fio (82e65ae latest master branch) on following config file, it hung after first job:

cat test.ini
[global]
ioengine=libaio
direct=1
time_based=1

runtime options

runtime=5
ramp_time=5
filename=/dev/ram0
[job1]
blocksize=32k

[job2]
blocksize=128k
stonewall

fio process in in sleep state.
root 9891 1.0 1.5 372196 116164 pts/0 Sl+ 14:26 0:00 fio test.ini
cat /proc/9891/stack [<ffffffff810ba469>] hrtimer_nanosleep+0xc9/0x1b0 [<ffffffff810ba5a7>] SyS_nanosleep+0x57/0x70 [<ffffffff81810757>] entry_SYSCALL_64_fastpath+0x12/0x6a [<ffffffffffffffff>] 0xffffffffffffffff

If I remove ramp_time, fio finish properly. I guess maybe some timer are not initialized properly?

[axboe]

Thanks, I can reproduce this, I'll take a look. It looks like a recent regression.

[axboe]

Can you try current -git? I committed this, which will hopefully fix it for you:

http://git.kernel.dk/cgit/fio/commit/?id=356014ff351c6eb69339652650af5f6af72e5c22

[xjtuwjp]

Thanks Jens, seems working, will do more test and report result

[axboe]

Thanks, feel free to re-open if you still have an issue.