[LTP] [patch] madvise03 address issue

[LTP] [patch] madvise03 address issue

[lina.zhao]

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Hi,

In the ltp madvise03 case, it will allocate a share memory
whose size is equal to the max share memory value.
The max share memory value can be changed to a bigger one
through change /proc/sys/kernel/shmmax.
then the 0x22000000 is not a invalid address.
So change the address to NULL to let the system choose a valid address.

Thanks,

Lina

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From adbdd3f74ab425a654523234ca24034d40468519 Mon Sep 17 00:00:00 2001
From: Lina Zhao <lina.zhao@windriver.com>
Date: Mon, 20 Sep 2010 15:41:42 +0800
Subject: [PATCH] madvise03 address issue

In the ltp madvise03 case, it will allocate a share memory
whose size is equal to the max share memory value.
The max share memory value can be changed to a bigger one
through change /proc/sys/kernel/shmmax.
then the 0x22000000 is not a invalid address.
So change the address to NULL to let the system choose a valid address.

Signed-off-by: Lina Zhao <lina.zhao@windriver.com>
---
 testcases/kernel/syscalls/madvise/madvise03.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/testcases/kernel/syscalls/madvise/madvise03.c b/testcases/kernel/syscalls/madvise/madvise03.c
index 2527865..269f292 100644
--- a/testcases/kernel/syscalls/madvise/madvise03.c
+++ b/testcases/kernel/syscalls/madvise/madvise03.c
@@ -203,14 +203,14 @@ int main(int argc, char *argv[])
 			tst_brkm(TBROK, cleanup, "shmget error");
 		}
 
-		/* Attach shared memory segment to 0x22000000 address */
+		/* Attach shared memory segment to random address */
 		if ((addr1 =
-		     shmat(shmid1, (void *)0x22000000, 0)) == (void *)-1) {
+		     shmat(shmid1, NULL, 0)) == (void *)-1) {
 			tst_brkm(TBROK, cleanup, "shmat error");
 		}
 
 		/*(1) Test case for MADV_REMOVE */
-		TEST(madvise((void *)0x22000000, 4096, MADV_REMOVE));
+		TEST(madvise((void *)addr1, 4096, MADV_REMOVE));
 		check_and_print("MADV_REMOVE");
 
 		/*(2) Test case for MADV_DONTFORK */
-- 
1.6.3.1


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