Hello,
I'm running the ltp version 20150420 and stock kernel 4.0 and I've
observed that the memcg_function test is failing. Here is a relevant
snipped from the log:
memcg_function_test 14 TFAIL : ltpapicmd.c:190: process 5827 is not
killed
/opt/ltp/testcases/bin/memcg_lib.sh: line 210: 5843 Killed
$TEST_PATH/memcg_process $2 -s $3
memcg_function_test 15 TPASS : process 5843 is killed
/opt/ltp/testcases/bin/memcg_lib.sh: line 210: 5859 Killed
$TEST_PATH/memcg_process $2 -s $3
memcg_function_test 16 TPASS : process 5859 is killed
/opt/ltp/testcases/bin/memcg_lib.sh: line 210: 5877 Killed
$TEST_PATH/memcg_process $2 -s $3
memcg_function_test 17 TPASS : process 5877 is killed
/opt/ltp/testcases/bin/memcg_lib.sh: line 210: 5894 Killed
$TEST_PATH/memcg_process $2 -s $3
memcg_function_test 18 TPASS : process 5894 is killed
/opt/ltp/testcases/bin/memcg_lib.sh: line 210: 5911 Killed
$TEST_PATH/memcg_process $2 -s $3
memcg_function_test 19 TPASS : process 5911 is killed
/opt/ltp/testcases/bin/memcg_lib.sh: line 210: 5927 Killed
$TEST_PATH/memcg_process $2 -s $3
memcg_function_test 20 TPASS : process 5927 is killed
/opt/ltp/testcases/bin/memcg_lib.sh: line 210: 5942 Killed
$TEST_PATH/memcg_process $2 -s $3
memcg_function_test 21 TPASS : process 5942 is killed
memcg_function_test 22 TFAIL : ltpapicmd.c:190: input=4095,
limit_in_bytes=0
memcg_function_test 23 TFAIL : ltpapicmd.c:190: input=4097,
limit_in_bytes=4096
memcg_function_test 24 TFAIL : ltpapicmd.c:190: input=1,
limit_in_bytes=0
memcg_function_test 25 TPASS : return value is 0
memcg_function_test 26 TPASS : return value is 1
memcg_function_test 27 TPASS : return value is 1
memcg_function_test 28 TPASS : return value is 1
memcg_function_test 29 TPASS : force memory succeeded
memcg_function_test 30 TFAIL : ltpapicmd.c:190: force memory should
fail
memcg_function_test 31 TPASS : return value is 0
memcg_function_test 32 TPASS : return value is 0
memcg_function_test 33 TPASS : return value is 0
memcg_function_test 34 TPASS : return value is 0
memcg_function_test 35 TPASS : return value is 1
Running /opt/ltp/testcases/bin/memcg_process --mmap-anon -s 4096
Warming up for test: 36, pid: 6128
Process is still here after warm up: 6128
memcg_function_test 36 TPASS : rss=4096/4096
memcg_function_test 36 TPASS : rss=0/0
Running /opt/ltp/testcases/bin/memcg_process --mmap-anon -s 4096
Warming up for test: 37, pid: 6155
Process is still here after warm up: 6155
memcg_function_test 37 TPASS : rss=4096/4096
memcg_function_test 37 TPASS : rss=0/0
Running /opt/ltp/testcases/bin/memcg_process --mmap-anon -s 4096
Warming up for test: 38, pid: 6182
Process is still here after warm up: 6182
memcg_function_test 38 TPASS : rss=4096/4096
memcg_function_test 38 TPASS : rss=0/0
<<<execution_status>>>
initiation_status="ok"
duration=135 termination_type=exited termination_id=5 corefile=no
cutime=8 cstime=15
<<<test_end>>>
INFO: ltp-pan reported some tests FAIL
LTP Version: 20150420
According to the file at :
https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/controllers/memcg/functional/memcg_function_test.sh
The failing test cases 14, 22, 23, 24 and 30 test respectively:
14: Hogging memory like so: mmap(NULL, memsize, PROT_WRITE | PROT_READ,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_LOCKED, 0, 0);
# Case 22 - 24: Test limit_in_bytes will be aligned to PAGESIZE - The
output clearly indicates that the limits in bytes is not being page
aligned? Is this desired behavior, in which case ltp is broken or is it
a genuine bug?
30: Again, it locks memory with mmap and then tries to see if
force_empty would succeed. Expecting it to fail, but in this particular
case it succeeds?
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