X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=memory.c;h=7f4cef529a52e55ecbf099c0e23738943ab2b492;hp=9b49d3986fc78584743cc4e047cd11cdfdd7e4ac;hb=ae2ddba4e74f06b5ec986d1c3387cd14e69f8146;hpb=b22989b9f9349b3c1d1c41846ab27ff0914bd6de;ds=sidebyside

diff --git a/memory.c b/memory.c
index 9b49d398..7f4cef52 100644
--- a/memory.c
+++ b/memory.c
@@ -65,14 +65,18 @@ static int alloc_mem_shm(struct thread_data *td, unsigned int total_mem)
 {
 	int flags = IPC_CREAT | SHM_R | SHM_W;
 
-	if (td->o.mem_type == MEM_SHMHUGE)
+	if (td->o.mem_type == MEM_SHMHUGE) {
+		unsigned long mask = td->o.hugepage_size - 1;
+
 		flags |= SHM_HUGETLB;
+		total_mem = (total_mem + mask) & ~mask;
+	}
 
 	td->shm_id = shmget(IPC_PRIVATE, total_mem, flags);
 	dprint(FD_MEM, "shmget %u, %d\n", total_mem, td->shm_id);
 	if (td->shm_id < 0) {
 		td_verror(td, errno, "shmget");
-		if (geteuid() != 0 && errno == ENOMEM)
+		if (geteuid() != 0 && (errno == ENOMEM || errno == EPERM))
 			log_err("fio: you may need to run this job as root\n");
 		if (td->o.mem_type == MEM_SHMHUGE) {
 			if (errno == EINVAL) {