<div dir="ltr">Also if you have CONFIG_RT_GROUP_SCHED in kernel config, you would likely need to set /sys/fs/cgroup/cpu/user.slice/cpu.rt_runtime_us for cgroup in which you run tests.<br></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><br>Best Regards, Tikhomirov Pavel.</div></div></div>
<br><div class="gmail_quote">2016-11-17 1:44 GMT+03:00 Andrei Vagin <span dir="ltr"><<a href="mailto:avagin@virtuozzo.com" target="_blank">avagin@virtuozzo.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Wed, Nov 16, 2016 at 10:10:28PM +0100, Adrian Reber wrote:<br>
> I have another test case which fails on my old kernel as well as on a<br>
> 4.8 kernel:<br>
><br>
> # ./zdtm.py run -f h -t zdtm/static/sched_policy00<br>
> === Run 1/1 ================<br>
><br>
> ===================== Run zdtm/static/sched_policy00 in h ======================<br>
> Start test<br>
> Test is SUID<br>
> ./sched_policy00 --pidfile=sched_policy00.pid --outfile=sched_policy00.out<br>
> make: *** [sched_policy00.pid] Error 1<br>
> ################ Test zdtm/static/sched_policy00 FAIL at start #################<br>
> Test output: ==============================<wbr>==<br>
> 21:07:43.833: 30: ERR: sched_policy00.c:38: Can't set policy (errno = 1 (Operation not permitted))<br>
> 21:07:43.833: 29: ERR: test.c:229: Test exited unexpectedly with code 255<br>
<br>
</span>Could you check that cpu.cfs_period_us is set to non-zero value?<br>
<br>
$ cat /sys/fs/cgroup/cpu/user.slice/<wbr>user-1000.slice/cpu.cfs_<wbr>period_us<br>
100000<br>
<div class="HOEnZb"><div class="h5"><br>
><br>
> <<< ==============================<wbr>==<br>
> ##############################<wbr>####### FAIL ##############################<wbr>#######<br>
><br>
> Any idea why this test case is failing?<br>
><br>
> Adrian<br>
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