X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=scripts%2Fcommon.sh.in;h=51671ebc019314bae11f39022f2745479ad3f427;hb=e2e7aa2df88708cdcae87688a69ba3f5d1cc43ed;hp=2583efcb209bb9b2e109fc481caba0629180a918;hpb=cf47fad67d798f42e6d2edc8b0e9f9b43175703b;p=zfs.git

diff --git a/scripts/common.sh.in b/scripts/common.sh.in
index 2583efc..51671eb 100644
--- a/scripts/common.sh.in
+++ b/scripts/common.sh.in
@@ -430,7 +430,7 @@ scsi_rescan() {
 #
 udev_trigger() {
 	if [ -f ${UDEVADM} ]; then
-		${UDEVADM} trigger
+		${UDEVADM} trigger --action=change --subsystem-match=block
 		${UDEVADM} settle
 	else
 		/sbin/udevtrigger
@@ -635,3 +635,29 @@ wait_udev() {
 
 	return 0
 }
+
+stack_clear() {
+	local STACK_MAX_SIZE=/sys/kernel/debug/tracing/stack_max_size
+	local STACK_TRACER_ENABLED=/proc/sys/kernel/stack_tracer_enabled
+
+	if [ -e $STACK_MAX_SIZE ]; then
+		echo 1 >$STACK_TRACER_ENABLED
+		echo 0 >$STACK_MAX_SIZE
+	fi
+}
+
+stack_check() {
+	local STACK_MAX_SIZE=/sys/kernel/debug/tracing/stack_max_size
+	local STACK_TRACE=/sys/kernel/debug/tracing/stack_trace
+	local STACK_LIMIT=7000
+
+	if [ -e $STACK_MAX_SIZE ]; then
+		STACK_SIZE=`cat $STACK_MAX_SIZE`
+
+		if [ $STACK_SIZE -ge $STACK_LIMIT ]; then
+			echo
+			echo "Warning: max stack size $STACK_SIZE bytes"
+			cat $STACK_TRACE
+		fi
+	fi
+}