diff options
| -rw-r--r-- | scripts/common.sh.in | 26 | ||||
| -rwxr-xr-x | scripts/zfs.sh | 2 |
2 files changed, 28 insertions, 0 deletions
diff --git a/scripts/common.sh.in b/scripts/common.sh.in index cf5585945..51671ebc0 100644 --- a/scripts/common.sh.in +++ b/scripts/common.sh.in @@ -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 +} diff --git a/scripts/zfs.sh b/scripts/zfs.sh index 4a707fabf..f44053e88 100755 --- a/scripts/zfs.sh +++ b/scripts/zfs.sh @@ -66,8 +66,10 @@ fi if [ ${UNLOAD} ]; then umount -t zfs -a + stack_check unload_modules else + stack_clear check_modules || die "${ERROR}" load_modules "$@" wait_udev /dev/zfs 30 |