diff options
| author | Masami Hiramatsu <mhiramat@kernel.org> | 2019-10-23 13:57:40 +0900 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2019-11-07 14:52:57 -0700 |
| commit | 2f3571ea71311bbb2cbb9c3bbefc9c1969a3e889 (patch) | |
| tree | a81ff2e6826324c13c28ba2727114a625f12f7af /tools | |
| parent | 02bf1f8b3c43eec5053c35c14fb9f138186b4123 (diff) | |
selftests: proc: Make va_max 1MB
Currently proc-self-map-files-002.c sets va_max (max test address
of user virtual address) to 4GB, but it is too big for 32bit
arch and 1UL << 32 is overflow on 32bit long.
Also since this value should be enough bigger than vm.mmap_min_addr
(64KB or 32KB by default), 1MB should be enough.
Make va_max 1MB unconditionally.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/proc/proc-self-map-files-002.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/testing/selftests/proc/proc-self-map-files-002.c b/tools/testing/selftests/proc/proc-self-map-files-002.c index 47b7473dedef..e6aa00a183bc 100644 --- a/tools/testing/selftests/proc/proc-self-map-files-002.c +++ b/tools/testing/selftests/proc/proc-self-map-files-002.c @@ -47,7 +47,11 @@ static void fail(const char *fmt, unsigned long a, unsigned long b) int main(void) { const int PAGE_SIZE = sysconf(_SC_PAGESIZE); - const unsigned long va_max = 1UL << 32; + /* + * va_max must be enough bigger than vm.mmap_min_addr, which is + * 64KB/32KB by default. (depends on CONFIG_LSM_MMAP_MIN_ADDR) + */ + const unsigned long va_max = 1UL << 20; unsigned long va; void *p; int fd; |