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mirror of git://sourceware.org/git/lvm2.git synced 2024-12-22 17:35:59 +03:00
lvm2/test/lib/utils.sh
Zdenek Kabelac 270f9306bc tests: improve tracing messages
Avoid printing lvm2 command trace, if the test finds the 'dmeventd'
was started unxpectedly during testing as the last command is hardly
ever responsible for this

Also reorder some messages when doing teardown of devices.

Do not print 'help' message from hostname command, when it does
not support option '-I'.
2024-11-13 13:00:42 +01:00

315 lines
8.3 KiB
Bash

#!/usr/bin/env bash
# Copyright (C) 2011-2012 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
set -e
MAX_TRIES=4
IFS_NL='
'
die() {
rm -f debug.log*
echo -e "$@" >&2
return 1
}
rand_bytes() {
n=$1
chars="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
dev_rand="/dev/urandom"
if test -r "$dev_rand"; then
# Note: 256-length($chars) == 194; 3 copies of $chars is 186 + 8 = 194.
head -c"$n" "$dev_rand" | tr -c "$chars" "01234567$chars$chars$chars"
return
fi
cmds='date; date +%N; free; who -a; w; ps auxww; ps ef; netstat -n'
data=$( (eval "$cmds") 2>&1 | gzip )
n_plus_50=$(( n + 50 ))
# Ensure that $data has length at least 50+$n
while :; do
len=${#data} # number of chars in $data
test "$n_plus_50" -le "$len" && break;
data=$( (echo "$data"; eval "$cmds") 2>&1 | gzip )
done
echo "$data" | dd bs=1 skip=50 count="$n" 2>/dev/null \
| tr -c "$chars" "01234567$chars$chars$chars"
}
mkdtemp() {
case $# in
2) ;;
*) die "Usage: mkdtemp DIR TEMPLATE";;
esac
destdir=$1
template=$2
test -d "$destdir" || die "DIR ('$destdir') does not exist."
case "$template" in
*XXXX) ;;
*) die "Invalid template: $template (must have a suffix of at least 4 X's)";;
esac
fail=0
# First, try to use mktemp.
d=$(env -u TMPDIR mktemp -d -t -p "$destdir" "$template" 2>/dev/null) || fail=1
# The resulting name must be in the specified directory.
case "$d" in "${destdir}"*);; *) fail=1;; esac
# It must have created the directory.
test -d "$d" || fail=1
# It must have 0700 permissions.
perms=$(ls -dgo "$d" 2>/dev/null) || fail=1
case "$perms" in drwx------*) ;; *) fail=1;; esac
test $fail = 0 && { echo "$d"; return; }
# If we reach this point, we'll have to create a directory manually.
# Get a copy of the template without its suffix of X's.
base_template=$(echo "$template" | sed 's/XX*$//')
# Calculate how many X's we've just removed.
nx=$(( ${#template} - ${#base_template} ))
err=
i=1
while :; do
X=$(rand_bytes "$nx")
candidate_dir="$destdir/$base_template$X"
err=$(mkdir -m 0700 "$candidate_dir" 2>&1) && \
{ echo "$candidate_dir"; return; }
test $MAX_TRIES -le $i && break;
i=$(( i + 1 ))
done
die "$err"
}
# Like grep, just always print 1st. line
grep1_() {
awk -v pattern="${1}" 'NR==1 || $0~pattern' "${@:2}"
}
stacktrace() {
trap - ERR
# i=1 - ignoring innermost frame - it is always stacktrace function
local i=1 n=${#BASH_LINENO[*]}
# n-=1 - ignoring last frame as well - it is not interesting
n=$(( n - 1 ))
echo "## - $0:${BASH_LINENO[$((n-1))]}"
while [[ $i -lt $n ]]; do
echo "## $i ${FUNCNAME[$i]}() called from ${BASH_SOURCE[$((i+1))]}:${BASH_LINENO[$i]}"
i=$(( i + 1 ))
done
}
STACKTRACE() {
trap - ERR
local i
stacktrace
test "${LVM_TEST_PARALLEL:-0}" -eq 0 && test -z "$RUNNING_DMEVENTD" && \
test ! -f LOCAL_DMEVENTD && DPID=$(pgrep -n dmeventd 2>/dev/null) && {
echo "## ERROR: The test started dmeventd ($DPID) unexpectedly."
kill "$DPID" 2>/dev/null || echo "## ERROR: Failed to kill dmeventd ($DPID)."
}
# Get backtraces from coredumps
if which gdb &>/dev/null; then
# Check for all cores newer then TESTNAME file
# Assume users keep prefix 'core'
# TODO: possibly better integrate with coredumpctl & systemd
local cores=()
local IFS=$IFS_NL
cores=( $(find . "$(dirname "$(sysctl -n kernel.core_pattern)")" \
"/var/lib/systemd/coredump/" -name 'core*' -newer TESTNAME 2>/dev/null || true ) )
for i in "${cores[@]-}"; do
bin=$(gdb -batch -c "$i" 2>&1 | grep "generated by" | \
sed -e "s,.*generated by \`\([^ ']*\).*,\1,") || continue
cat > gdb_commands.txt <<- EOF || rm -f gdb_commands.txt
bt full
l
quit
EOF
if test ! -s gdb_commands.txt ; then
echo "Out of disk space, cannot check coredump \"$i\" generated by \"$bin\"."
break
fi
echo "## Checking coredump: $i generated by $bin."
gdb -batch -c "$i" -x gdb_commands.txt "$(which "$bin")" 2>/dev/null | \
sed -e "s,^,## GDB: ," || continue
done
fi
test -f SKIP_THIS_TEST && exit 200
test -z "$LVM_TEST_NODEBUG" && test -f TESTNAME && {
local name
local idx=0
for i in debug.log* ; do
test -f "$i" || break # nothing is found (expands to debug.log*)
name=${i##debug.log_}
name=${name%%_*}
test "$name" = "DEBUG" && { name="$name$idx" ; idx=$(( idx + 1 )) ; }
echo "<======== Debug log $i ========>"
sed -e "s,^,## $name: ," "$i"
mv -f "$i" "debug_${i#debug.}"
done
if test -e strace.log ; then
echo "<======== Strace debug log ========>"
sed -e "s,^,## STRACE: ," strace.log
fi
if dmsetup info -c | grep -q "$PREFIX" ; then
echo "<======== Info ========>"
dmsetup info -c | grep1_ "$PREFIX"| sed -e "s,^,## DMINFO: ,"
echo "<======== Active table ========>"
dmsetup table | grep "$PREFIX" | sed -e "s,^,## DMTABLE: ,"
echo "<======== Inactive table ========>"
dmsetup table --inactive | grep "$PREFIX" | sed -e "s,^,## DMITABLE: ,"
echo "<======== Status ========>"
dmsetup status --noflush | grep "$PREFIX" | sed -e "s,^,## DMSTATUS: ,"
echo "<======== Tree ========>"
dmsetup ls --tree | sed -e "s,^,## DMTREE: ,"
echo "<======== Recursive list of $DM_DEV_DIR ========>"
ls -lR -I bsg -I bus -I char -Idma_heap -I dri \
-I hugepages -I input -I mqueue \
-I net -I pts -I shm -I snd \
-I tty?* -I usb -I vfio -I vcs?* \
-I virtio-ports \
"$DM_DEV_DIR" | sed -e "s,^,## LS_LR: ,"
echo "<======== Udev DB content ========>"
for i in /sys/block/dm-* /sys/block/loop* ; do
udevadm info --query=all --path "$i" 2>/dev/null || true
done | sed -e "s,^,## UDEV: ,"
fi
echo "<======== Free space ========>"
df -h | sed -e "s,^,## DF_H: ,"
echo "<======== Script file \"$(< TESTNAME)\" ========>"
local script=$0
test -f "$script" || script="$TESTOLDPWD/$0"
awk '{print "## Line:", NR, "\t", $0}' "$script"
}
}
init_udev_transaction() {
if test "$DM_UDEV_SYNCHRONIZATION" = 1; then
local cookie
cookie=$(dmsetup udevcreatecookie)
# Cookie is not generated if udev is not running!
test -z "$cookie" || export DM_UDEV_COOKIE=$cookie
fi
}
finish_udev_transaction() {
if test "$DM_UDEV_SYNCHRONIZATION" = 1 && test -n "${DM_UDEV_COOKIE-}" ; then
dmsetup udevreleasecookie || true
unset DM_UDEV_COOKIE
fi
}
teardown_udev_cookies() {
if test "$DM_UDEV_SYNCHRONIZATION" = 1; then
# Delete any cookies created more than 10 minutes ago
# and not used in the last 10 minutes.
# Log only non-zero semaphores count
(dmsetup udevcomplete_all -y 10 | grep -v "^0 ") || true
fi
}
dm_info() {
should dmsetup info --noheadings -c -o "$@"
}
dm_status() {
should dmsetup status --noheadings "$@"
}
dm_table() {
should dmsetup table "$@"
}
skip() {
set +vx # debug off
if test "$#" -eq 0; then
stacktrace
else
echo -e "TEST SKIPPED:" "$@"
fi
touch SKIP_THIS_TEST
exit 200
}
get_real_devs() {
REAL_DEVICES=( $(<REAL_DEVICES) )
export REAL_DEVICES
}
get_devs() {
local IFS=$IFS_NL
DEVICES=( $(<DEVICES) )
export DEVICES
# local DEVS=( $(<DEVICES) )
# eval "$1"'=("${DEVS[@]}")'
}
prepare_test_vars() {
vg="${PREFIX}vg"
lv="LV"
for i in {1..16}; do
eval "lv$i=\"LV$i\""
eval "vg$i=\"${PREFIX}vg$i\""
done
if test -n "$LVM_TEST_DEVICE_LIST"; then
local count=0
while read -r path; do
count=$(( count + 1 ))
eval "dev$count=\"$path\""
done < "$LVM_TEST_DEVICE_LIST"
else
for i in {1..16}; do
eval "dev$i=\"$DM_DEV_DIR/mapper/${PREFIX}pv$i\""
done
fi
}
if test -z "${abs_top_builddir+varset}" && test -z "${installed_testsuite+varset}"; then
. lib/paths || die "something went wrong -- lib/paths is missing?"
fi
if test -z "${installed_testsuite+varset}"; then
case "$PATH" in
*"$abs_top_builddir/test/lib"*) ;;
*)
PATH="$abs_top_builddir/test/lib:$abs_top_builddir/test/api:$PATH"
LVM_BINARY=$(which lvm)
LD_LIBRARY_PATH="$abs_top_builddir/daemons/dmeventd:$abs_top_builddir/tools:$abs_top_builddir/libdm:$LD_LIBRARY_PATH"
export PATH LD_LIBRARY_PATH LVM_BINARY ;;
esac
fi
test -z "$PREFIX" || prepare_test_vars