From: Jens Axboe <jens.axboe@oracle.com>
Date: Fri, 23 Mar 2007 07:23:51 +0000 (+0100)
Subject: Print help info on huge page shmget() returning EINVAL
X-Git-Tag: fio-1.15~42
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=d3eb7d7ccd126c45c67f8aacc9634e7705e98037;hp=-c

Print help info on huge page shmget() returning EINVAL

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

d3eb7d7ccd126c45c67f8aacc9634e7705e98037
diff --git a/memory.c b/memory.c
index e5680389..8d6f9557 100644
--- a/memory.c
+++ b/memory.c
@@ -72,6 +72,8 @@ int allocate_io_mem(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");
 			
 			return 1;
 		}