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=${KMOD_ZCOMMON:-zcommon}
29 KMOD_ZLUA=${KMOD_ZLUA:-zlua}
30 KMOD_ICP=${KMOD_ICP:-icp}
31 KMOD_ZFS=${KMOD_ZFS:-zfs}
37 $0 [hvud] [module-options]
40 Load/unload the ZFS module stack.
49 while getopts 'hvu' OPTION; do
69 if [ -f "$ZED_PIDFILE" ]; then
70 PID=$(cat "$ZED_PIDFILE")
79 for KMOD in $KMOD_SPL $KMOD_SPLAT $KMOD_ZAVL $KMOD_ZNVPAIR \
80 $KMOD_ZUNICODE $KMOD_ZCOMMON $KMOD_ZLUA $KMOD_ICP $KMOD_ZFS; do
81 NAME=$(basename "$KMOD" .ko)
83 if lsmod | grep -E -q "^${NAME}"; then
84 LOADED_MODULES="$LOADED_MODULES\t$NAME\n"
87 if ! modinfo "$KMOD" >/dev/null 2>&1; then
88 MISSING_MODULES="$MISSING_MODULES\t${KMOD}\n"
92 if [ -n "$LOADED_MODULES" ]; then
93 printf "Unload the kernel modules by running '%s -u':\n" "$PROG"
94 printf "%b" "$LOADED_MODULES"
98 if [ -n "$MISSING_MODULES" ]; then
99 printf "The following kernel modules can not be found:\n"
100 printf "%b" "$MISSING_MODULES"
110 FILE=$(modinfo "$KMOD" | awk '/^filename:/ {print $2}')
111 VERSION=$(modinfo "$KMOD" | awk '/^version:/ {print $2}')
113 if [ "$VERBOSE" = "yes" ]; then
114 echo "Loading: $FILE ($VERSION)"
117 $LDMOD "$KMOD" >/dev/null 2>&1
118 # shellcheck disable=SC2181
119 if [ $? -ne 0 ]; then
120 echo "Failed to load $KMOD"
130 if modinfo "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1; then
131 modprobe "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1
134 if modinfo "$KMOD_ZLIB_INFLATE">/dev/null 2>&1; then
135 modprobe "$KMOD_ZLIB_INFLATE" >/dev/null 2>&1
138 for KMOD in $KMOD_SPL $KMOD_SPLAT $KMOD_ZAVL $KMOD_ZNVPAIR \
139 $KMOD_ZUNICODE $KMOD_ZCOMMON $KMOD_ZLUA $KMOD_ICP $KMOD_ZFS; do
140 load_module "$KMOD" || return 1
143 if [ "$VERBOSE" = "yes" ]; then
144 echo "Successfully loaded ZFS module stack"
153 NAME=$(basename "$KMOD" .ko)
154 FILE=$(modinfo "$KMOD" | awk '/^filename:/ {print $2}')
155 VERSION=$(modinfo "$KMOD" | awk '/^version:/ {print $2}')
157 if [ "$VERBOSE" = "yes" ]; then
158 echo "Unloading: $KMOD ($VERSION)"
161 rmmod "$NAME" || echo "Failed to unload $NAME"
167 for KMOD in $KMOD_ZFS $KMOD_ICP $KMOD_ZLUA $KMOD_ZCOMMON $KMOD_ZUNICODE \
168 $KMOD_ZNVPAIR $KMOD_ZAVL $KMOD_SPLAT $KMOD_SPL; do
169 NAME=$(basename "$KMOD" .ko)
170 USE_COUNT=$(lsmod | grep -E "^${NAME} " | awk '{print $3}')
172 if [ "$USE_COUNT" = "0" ] ; then
173 unload_module "$KMOD" || return 1
177 if modinfo "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1; then
178 modprobe -r "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1
181 if modinfo "$KMOD_ZLIB_INFLATE">/dev/null 2>&1; then
182 modprobe -r "$KMOD_ZLIB_INFLATE" >/dev/null 2>&1
185 if [ "$VERBOSE" = "yes" ]; then
186 echo "Successfully unloaded ZFS module stack"
193 STACK_MAX_SIZE=/sys/kernel/debug/tracing/stack_max_size
194 STACK_TRACER_ENABLED=/proc/sys/kernel/stack_tracer_enabled
196 if [ -e "$STACK_MAX_SIZE" ]; then
197 echo 1 >"$STACK_TRACER_ENABLED"
198 echo 0 >"$STACK_MAX_SIZE"
203 STACK_MAX_SIZE=/sys/kernel/debug/tracing/stack_max_size
204 STACK_TRACE=/sys/kernel/debug/tracing/stack_trace
207 if [ -e "$STACK_MAX_SIZE" ]; then
208 STACK_SIZE=$(cat "$STACK_MAX_SIZE")
210 if [ "$STACK_SIZE" -ge "$STACK_LIMIT" ]; then
212 echo "Warning: max stack size $STACK_SIZE bytes"
218 if [ "$(id -u)" != 0 ]; then
219 echo "Must run as root"
223 if [ "$UNLOAD" = "yes" ]; then