[LTP] [PATCH] madvise09:Change PAGES size to the value more than 32

shuang.qiu
2019-09-04T06:00:23Z

From: Shuang Qiu <shuang.qiu@oracle.com>

In upstream patch 1a61ab (mm: memcontrol: replace zone summing with lruvec_page_state()),
it modify the lruvec state in batch,equal and less than 32 MADV_FREE pages will not trigger
the account of lruvec_stat,and will not be free in memory pressure either.
So the testcase may fail with:
...
madvise09.c:219: INFO: Memory hungry child 6178 started, try 10
madvise09.c:254: INFO: Memory map: pppppppppppppppppppppppppppppppp
madvise09.c:259: FAIL: No MADV_FREE page was freed on low memory
...
Change the PAGES to the value more than 32 can fix such issue.

Signed-off-by: Shuang Qiu <shuang.qiu@oracle.com>
---
testcases/kernel/syscalls/madvise/madvise09.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/testcases/kernel/syscalls/madvise/madvise09.c b/testcases/kernel/syscalls/madvise/madvise09.c
index 01075f6..3759053 100644
--- a/testcases/kernel/syscalls/madvise/madvise09.c
+++ b/testcases/kernel/syscalls/madvise/madvise09.c
@@ -57,7 +57,7 @@ static int sleep_between_faults;

static int swap_accounting_enabled;

-#define PAGES 32
+#define PAGES 64
#define TOUCHED_PAGE1 0
#define TOUCHED_PAGE2 10

--
1.9.1