[LTP] [PATCH] controllers/cpuacct.sh: Fix timeout for cpuacct.sh

[Xiao Yang <yangx.jy@cn.fujitsu.com>]

Hi,

Ping :-)

Best Regards,
Xiao Yang
On 2018/12/06 17:05, Xiao Yang wrote:
> With commit fbea02a, cpuacct.sh always gets timeout because wait
> command tries to wait all background processes including the timeout
> process.  We should just wait the processes created for test.
>
> e.g. running cpuacct_1_1 gets the following timeout:
> -----------------------------------------------------------
> cpuacct 1 TINFO: timeout per run is 0h 5m 0s
> cpuacct 1 TINFO: cpuacct:
> cpuacct 1 TINFO: Creating 1 subgroups each with 1 processes
> cpuacct 1 TBROK: test killed, timeout!
> -----------------------------------------------------------
>
> Fixes: fbea02a("lib/tst_test.sh: setup timeout per test run for the shell tests")
> Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
> ---
>  testcases/kernel/controllers/cpuacct/cpuacct.sh | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/testcases/kernel/controllers/cpuacct/cpuacct.sh b/testcases/kernel/controllers/cpuacct/cpuacct.sh
> index edd4a98..5e90b05 100755
> --- a/testcases/kernel/controllers/cpuacct/cpuacct.sh
> +++ b/testcases/kernel/controllers/cpuacct/cpuacct.sh
> @@ -41,6 +41,7 @@ TST_TESTFUNC=do_test
>  TST_POS_ARGS=2
>  TST_USAGE=usage
>  TST_NEEDS_ROOT=1
> +TST_NEEDS_TMPDIR=1
>  
>  . tst_test.sh
>  
> @@ -114,10 +115,12 @@ do_test()
>  	for i in `seq 1 $max`; do
>  		for j in `seq 1 $nbprocess`; do
>  			cpuacct_task $testpath/subgroup_$i/tasks &
> +			echo $! >> task_pids
>  		done
>  	done
>  
> -	wait
> +	for pid in $(cat task_pids); do wait $pid; done
> +	rm -f task_pids
>  
>  	acc=0
>  	fails=0