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-rw-r--r--tools/vm/slabinfo.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index 0fffaeedee76..cfaeaea71042 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -157,9 +157,11 @@ static unsigned long read_obj(const char *name)
{
FILE *f = fopen(name, "r");
- if (!f)
+ if (!f) {
buffer[0] = 0;
- else {
+ if (errno == EACCES)
+ fatal("%s, Try using superuser\n", strerror(errno));
+ } else {
if (!fgets(buffer, sizeof(buffer), f))
buffer[0] = 0;
fclose(f);