From: Karel Zak <kzak@redhat.com>
Date: Fri, 24 Apr 2015 15:09:17 +0000 (+0200)
Subject: test_uuidd: add comment
X-Git-Tag: v2.27-rc1~231
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=28f47fd2e0cc76ea2dafd0bd384d8586d4c901e3;p=thirdparty%2Futil-linux.git

test_uuidd: add comment

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/tests/helpers/test_uuidd.c b/tests/helpers/test_uuidd.c
index f098c4ac47..1262e359d7 100644
--- a/tests/helpers/test_uuidd.c
+++ b/tests/helpers/test_uuidd.c
@@ -5,6 +5,23 @@
  *	SAP Technology Group
  *
  * Copyright (C) 2015 Karel Zak <kzak@redhat.com>
+ *
+ *
+ * The test heavily uses shared memory, to enlarge maximal size of shared
+ * segment use:
+ *
+ *	echo "4294967295" > /proc/sys/kernel/shmm
+ *
+ * The test is compiled against in-tree libuuid, if you want to test uuidd
+ * installed to the system then make sure that libuuid uses the same socket
+ * like the running uuidd. You can start the uuidd manually, for example:
+ *
+ *	uuidd --debug --no-fork --no-pid --socket /run/uuidd/request
+ *
+ * if the $localstatedir (as defined by build-system) is /run. If you want
+ * to overwrite the built-in default then use:
+ *
+ *	make uuidd uuidgen localstatedir=/var
  */
 #include <error.h>
 #include <libgen.h>