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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" Hi! > Bad IO situation(storage bandwidth ~10MB/sec) will lead background > writeback has uncertain progress for dirty page. So system can not > reclaim enough memory for new process and finally lead a unexpected > OOM. > > memcontrol03.c:218: TPASS: Expect: (A/B/E memory.current=0) ~= 0 > memcontrol03.c:116: TPASS: Child 1918 killed by OOM > memcontrol03.c:224: TPASS: Expect: (A/B memory.current=52588544) ~= 52428800 > memcontrol03.c:129: TFAIL: Expected child 1944 to exit(0), but instead killed by SIGKILL This is strange the order of messages here does not make any sense. the last line in the log shouldn't be there at all, the test should have ended with the "Expect: (A/B memory.current=52588544) ~= 52428800" Can you please send the whole log? > Signed-off-by: Wei Gao > --- > testcases/kernel/controllers/memcg/memcontrol03.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/testcases/kernel/controllers/memcg/memcontrol03.c b/testcases/kernel/controllers/memcg/memcontrol03.c > index 9c6c808e0..9903ba82b 100644 > --- a/testcases/kernel/controllers/memcg/memcontrol03.c > +++ b/testcases/kernel/controllers/memcg/memcontrol03.c > @@ -201,6 +201,7 @@ static void test_memcg_min(void) > sleep(1); > } > > + sync(); > alloc_anon_in_child(trunk_cg[G], MB(148), 0); > > SAFE_CG_SCANF(trunk_cg[B], "memory.current", "%ld", c); > @@ -217,6 +218,7 @@ static void test_memcg_min(void) > TST_EXP_EXPR(values_close(c[2], 0, 1), > "(A/B/E memory.current=%ld) ~= 0", c[2]); > > + sync(); > alloc_anon_in_child(trunk_cg[G], MB(170), 1); > > SAFE_CG_SCANF(trunk_cg[B], "memory.current", "%ld", c); -- Cyril Hrubis chrubis@suse.cz -- Mailing list info: https://lists.linux.it/listinfo/ltp