From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 19 Jul 2007 08:00:05 +0000 (+0200)
Subject: Detect and print when the OS doesn't support huge pages
X-Git-Tag: fio-1.16.7~5
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=d8602dd08170e11fb91dccde945bc527dbba57aa;hp=6b3eccb158d1f4cebc2924fc6abf84c1bf59d002

Detect and print when the OS doesn't support huge pages

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/memory.c b/memory.c
index d075c352..a95edd78 100644
--- a/memory.c
+++ b/memory.c
@@ -65,8 +65,12 @@ static int alloc_mem_shm(struct thread_data *td)
 		td_verror(td, errno, "shmget");
 		if (geteuid() != 0 && errno == ENOMEM)
 			log_err("fio: you may need to run this job as root\n");
-		if (errno == EINVAL && td->o.mem_type == MEM_SHMHUGE)
-			log_err("fio: check that you have free huge pages and that hugepage-size is correct.\n");
+		if (td->o.mem_type == MEM_SHMHUM) {
+			if (errno == EINVAL)
+				log_err("fio: check that you have free huge pages and that hugepage-size is correct.\n");
+			else if (errno == ENOSYS)
+				log_err("fio: your system does not appear to support huge pages.\n");
+		}
 		
 		return 1;
 	}