[LTP] [PATCH] Fix mmap01 testcase on hppa architecture
Helge Deller
deller@gmx.de
Fri Jun 9 16:53:28 CEST 2017
The mmap() syscall to map a file at any given page-aligned address (via the
MAP_FIXED flag) can fail on the hppa architecture due to cache colouring
requirements of the architecture.
This patch drops the MAP_FIXED flag and thus maps the file instead at
some convenient address based on the hint as given by the addr
parameter. The tests covered by mmap01 check the *end* of the mmaped
file for consistency, so mapping the beginning of the file at any
address is okay without breaking the main intention of the mmap01
testcase.
Signed-off-by: Helge Deller <deller@gmx.de>
diff --git a/testcases/kernel/syscalls/mmap/mmap01.c b/testcases/kernel/syscalls/mmap/mmap01.c
index 41183d109..a508edb10 100644
--- a/testcases/kernel/syscalls/mmap/mmap01.c
+++ b/testcases/kernel/syscalls/mmap/mmap01.c
@@ -81,7 +81,7 @@ int main(int ac, char **av)
*/
errno = 0;
addr = mmap(addr, page_sz, PROT_READ | PROT_WRITE,
- MAP_FILE | MAP_SHARED | MAP_FIXED, fildes, 0);
+ MAP_FILE | MAP_SHARED, fildes, 0);
/* Check for the return value of mmap() */
if (addr == MAP_FAILED) {
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