3 # A simple script to load/unload the ZFS module stack.
6 BASE_DIR=$(dirname "$0")
7 SCRIPT_COMMON=common.sh
8 if [ -f "${BASE_DIR}/${SCRIPT_COMMON}" ]; then
9 . "${BASE_DIR}/${SCRIPT_COMMON}"
11 echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
18 ZED_PIDFILE=${ZED_PIDFILE:-/var/run/zed.pid}
19 LDMOD=${LDMOD:-/sbin/modprobe}
21 KMOD_ZLIB_DEFLATE=${KMOD_ZLIB_DEFLATE:-zlib_deflate}
22 KMOD_ZLIB_INFLATE=${KMOD_ZLIB_INFLATE:-zlib_inflate}
23 KMOD_SPL=${KMOD_SPL:-spl}
24 KMOD_SPLAT=${KMOD_SPLAT:-splat}
25 KMOD_ZAVL=${KMOD_ZAVL:-zavl}
26 KMOD_ZNVPAIR=${KMOD_ZNVPAIR:-znvpair}
27 KMOD_ZUNICODE=${KMOD_ZUNICODE:-zunicode}
28 KMOD_ZCOMMON=${KMOD_ZCOMMON:-zcommon}
29 KMOD_ICP=${KMOD_ICP:-icp}
30 KMOD_ZFS=${KMOD_ZFS:-zfs}
36 $0 [hvud] [module-options]
39 Load/unload the ZFS module stack.
48 while getopts 'hvu' OPTION; do
68 if [ -f "$ZED_PIDFILE" ]; then
69 PID=$(cat "$ZED_PIDFILE")
75 local LOADED_MODULES=""
76 local MISSING_MODULES=""
78 for KMOD in $KMOD_SPL $KMOD_SPLAT $KMOD_ZAVL $KMOD_ZNVPAIR \
79 $KMOD_ZUNICODE $KMOD_ZCOMMON $KMOD_ICP $KMOD_ZFS; do
80 NAME=$(basename "$KMOD" .ko)
82 if lsmod | egrep -q "^${NAME}"; then
83 LOADED_MODULES="$LOADED_MODULES\t$NAME\n"
86 if ! modinfo "$KMOD" >/dev/null 2>&1; then
87 MISSING_MODULES="$MISSING_MODULES\t${KMOD}\n"
91 if [ -n "$LOADED_MODULES" ]; then
92 printf "Unload the kernel modules by running '%s -u':\n" "$PROG"
93 printf "%b" "$LOADED_MODULES"
97 if [ -n "$MISSING_MODULES" ]; then
98 printf "The following kernel modules can not be found:\n"
99 printf "%b" "$MISSING_MODULES"
109 FILE=$(modinfo "$KMOD" | awk '/^filename:/ {print $2}')
110 VERSION=$(modinfo "$KMOD" | awk '/^version:/ {print $2}')
112 if [ "$VERBOSE" = "yes" ]; then
113 echo "Loading: $FILE ($VERSION)"
116 $LDMOD "$KMOD" >/dev/null 2>&1
117 if [ $? -ne 0 ]; then
118 echo "Failed to load $KMOD"
128 if modinfo "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1; then
129 modprobe "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1
132 if modinfo "$KMOD_ZLIB_INFLATE">/dev/null 2>&1; then
133 modprobe "$KMOD_ZLIB_INFLATE" >/dev/null 2>&1
136 for KMOD in $KMOD_SPL $KMOD_SPLAT $KMOD_ZAVL $KMOD_ZNVPAIR \
137 $KMOD_ZUNICODE $KMOD_ZCOMMON $KMOD_ICP $KMOD_ZFS; do
138 load_module "$KMOD" || return 1
141 if [ "$VERBOSE" = "yes" ]; then
142 echo "Successfully loaded ZFS module stack"
151 NAME=$(basename "$KMOD" .ko)
152 FILE=$(modinfo "$KMOD" | awk '/^filename:/ {print $2}')
153 VERSION=$(modinfo "$KMOD" | awk '/^version:/ {print $2}')
155 if [ "$VERBOSE" = "yes" ]; then
156 echo "Unloading: $KMOD ($VERSION)"
159 rmmod "$NAME" || echo "Failed to unload $NAME"
165 for KMOD in $KMOD_ZFS $KMOD_ICP $KMOD_ZCOMMON $KMOD_ZUNICODE \
166 $KMOD_ZNVPAIR $KMOD_ZAVL $KMOD_SPLAT $KMOD_SPL; do
167 NAME=$(basename "$KMOD" .ko)
168 USE_COUNT=$(lsmod | egrep "^${NAME} " | awk '{print $3}')
170 if [ "$USE_COUNT" = "0" ] ; then
171 unload_module "$KMOD" || return 1
175 if modinfo "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1; then
176 modprobe -r "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1
179 if modinfo "$KMOD_ZLIB_INFLATE">/dev/null 2>&1; then
180 modprobe -r "$KMOD_ZLIB_INFLATE" >/dev/null 2>&1
183 if [ "$VERBOSE" = "yes" ]; then
184 echo "Successfully unloaded ZFS module stack"
191 local STACK_MAX_SIZE=/sys/kernel/debug/tracing/stack_max_size
192 local STACK_TRACER_ENABLED=/proc/sys/kernel/stack_tracer_enabled
194 if [ -e "$STACK_MAX_SIZE" ]; then
195 echo 1 >"$STACK_TRACER_ENABLED"
196 echo 0 >"$STACK_MAX_SIZE"
201 local STACK_MAX_SIZE=/sys/kernel/debug/tracing/stack_max_size
202 local STACK_TRACE=/sys/kernel/debug/tracing/stack_trace
203 local STACK_LIMIT=7600
205 if [ -e "$STACK_MAX_SIZE" ]; then
206 STACK_SIZE=$(cat "$STACK_MAX_SIZE")
208 if [ "$STACK_SIZE" -ge "$STACK_LIMIT" ]; then
210 echo "Warning: max stack size $STACK_SIZE bytes"
216 if [ "$(id -u)" != 0 ]; then
217 echo "Must run as root"
221 if [ "$UNLOAD" = "yes" ]; then