diff -Nru multipath-tools-0.4.9/debian/changelog multipath-tools-0.4.9/debian/changelog
--- multipath-tools-0.4.9/debian/changelog	2016-05-12 05:04:32.000000000 -0400
+++ multipath-tools-0.4.9/debian/changelog	2016-05-17 14:42:36.000000000 -0400
@@ -1,3 +1,10 @@
+multipath-tools (0.4.9-3ubuntu7.13) trusty; urgency=medium
+
+  * debian/patches/0001-multipath-fix-setting-sysfs-fc-timeout-parameters.patch:
+    multipath was not setting fiberchannel sysfs params correctly. (LP: #1578654)
+
+ -- Dan Streetman <dan.streetman@canonical.com>  Thu, 05 May 2016 13:47:30 +0000
+
 multipath-tools (0.4.9-3ubuntu7.12) trusty; urgency=medium
 
   * 0044-multipath-check-for-NULL-from-udev_device_get.patch (LP: #1532789) 
diff -Nru multipath-tools-0.4.9/debian/patches/0001-multipath-fix-setting-sysfs-fc-timeout-parameters.patch multipath-tools-0.4.9/debian/patches/0001-multipath-fix-setting-sysfs-fc-timeout-parameters.patch
--- multipath-tools-0.4.9/debian/patches/0001-multipath-fix-setting-sysfs-fc-timeout-parameters.patch	1969-12-31 19:00:00.000000000 -0500
+++ multipath-tools-0.4.9/debian/patches/0001-multipath-fix-setting-sysfs-fc-timeout-parameters.patch	2016-05-17 14:42:00.000000000 -0400
@@ -0,0 +1,78 @@
+From 050b24b33d3c60e29f7820d2fb75e84a9edde528 Mon Sep 17 00:00:00 2001
+From: Benjamin Marzinski <bmarzins@redhat.com>
+Date: Mon, 20 Aug 2012 17:26:46 -0500
+Subject: [PATCH] multipath: fix setting sysfs fc timeout parameters
+
+Multipath was accidentally trying to write to the directory where
+dev_loss_tmo and fast_io_fail_tmo were located instead to the files
+themselves. Also, if dev_loss_tmo was unset, it was trying to set it
+to 0. Finally, it wasn't correctly checking for errors in setting
+the files.  This patch fixes these issues.
+
+Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
+---
+ libmultipath/discovery.c | 7 ++++---
+ libmultipath/sysfs.c     | 7 ++++---
+ 2 files changed, 8 insertions(+), 6 deletions(-)
+
+diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
+index 3315b5e..33e44b6 100644
+--- a/libmultipath/discovery.c
++++ b/libmultipath/discovery.c
+@@ -289,7 +289,8 @@ sysfs_set_rport_tmo(struct multipath *mpp, struct path *pp)
+ 		pp->sg_id.channel, pp->sg_id.scsi_id, rport_id);
+ 
+ 	snprintf(value, 11, "%u", mpp->dev_loss);
+-	if (sysfs_attr_set_value(rport_dev, "dev_loss_tmo", value, 11) < 0) {
++	if (mpp->dev_loss &&
++	    sysfs_attr_set_value(rport_dev, "dev_loss_tmo", value, 11) <= 0) {
+ 		if ((!mpp->fast_io_fail ||
+ 		     mpp->fast_io_fail == MP_FAST_IO_FAIL_OFF)
+ 		    && mpp->dev_loss > 600) {
+@@ -298,7 +298,7 @@ sysfs_set_rport_tmo(struct multipath *mpp, struct path *pp)
+ 				"fast_io_fail is not set", mpp->alias);
+ 			snprintf(value, 11, "%u", 600);
+ 			if (sysfs_attr_set_value(rport_dev, "dev_loss_tmo",
+-						 value, 11) < 0)
++						 value, 11) <= 0)
+ 				condlog(0, "%s failed to set dev_loss_tmo",
+ 					mpp->alias);
+ 			goto out;
+@@ -311,7 +312,7 @@ sysfs_set_rport_tmo(struct multipath *mpp, struct path *pp)
+ 		else
+ 			snprintf(value, 11, "%u", mpp->fast_io_fail);
+ 		if (sysfs_attr_set_value(rport_dev, "fast_io_fail_tmo",
+-					 value, 11) < 0) {
++					 value, 11) <= 0) {
+ 			condlog(0, "%s failed to set fast_io_fail_tmo",
+ 				mpp->alias);
+ 		}
+diff --git a/libmultipath/sysfs.c b/libmultipath/sysfs.c
+index c9dc280..8e986e8 100644
+--- a/libmultipath/sysfs.c
++++ b/libmultipath/sysfs.c
+@@ -41,8 +41,8 @@
+ ssize_t sysfs_attr_set_value(struct udev_device *dev, const char *attr_name,
+ 			     char * value, size_t value_len)
+ {
+-	const char *devpath;
++	char devpath[PATH_SIZE];
+ 	const char *path;
+ 	struct stat statbuf;
+ 	int fd;
+ 	ssize_t size = -1;
+@@ -48,8 +48,9 @@ ssize_t sysfs_attr_set_value(struct udev_device *dev, const char *attr_name,
+ 	if (!dev || !attr_name || !value)
+ 		return 0;
+ 
+-	devpath = udev_device_get_syspath(dev);
+-	condlog(4, "open '%s'/'%s'", devpath, attr_name);
++	snprintf(devpath, PATH_SIZE, "%s/%s", udev_device_get_syspath(dev),
++		 attr_name);
++	condlog(4, "open '%s'", devpath);
+ 	if (stat(devpath, &statbuf) != 0) {
+ 		condlog(4, "stat '%s' failed: %s", devpath, strerror(errno));
+ 		return 0;
+-- 
+1.9.1
+
diff -Nru multipath-tools-0.4.9/debian/patches/series multipath-tools-0.4.9/debian/patches/series
--- multipath-tools-0.4.9/debian/patches/series	2016-05-12 05:00:38.000000000 -0400
+++ multipath-tools-0.4.9/debian/patches/series	2016-05-17 14:43:23.000000000 -0400
@@ -77,3 +77,4 @@
 multipath_enable_sync_support_1b8082c8.patch
 dm-multipath-backlist-nvme-5c412e47.patch
 0044-multipath-check-for-NULL-from-udev_device_get.patch
+0001-multipath-fix-setting-sysfs-fc-timeout-parameters.patch