mirror of
https://github.com/morgan9e/systemd
synced 2026-04-14 00:14:32 +09:00
840549989f
Load modules in parallel using a pool of worker threads. The number of threads is equal to the number of CPUs, with a maximum of 16 (to avoid too many threads being started during boot on systems with many an high core count, since the number of modules loaded on boot is usually on the small side). The number of threads can optionally be specified manually using the SYSTEMD_MODULES_LOAD_NUM_THREADS environment variable; in this case, no limit is enforced. If SYSTEMD_MODULES_LOAD_NUM_THREADS is set to 0, probing happens sequentially. Co-authored-by: Eric Curtin <ecurtin@redhat.com>
91 lines
2.6 KiB
Bash
Executable File
91 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# SPDX-License-Identifier: LGPL-2.1-or-later
|
|
set -eux
|
|
set -o pipefail
|
|
|
|
MODULES_LOAD_BIN="/usr/lib/systemd/systemd-modules-load"
|
|
CONFIG_FILE="/run/modules-load.d/99-test.conf"
|
|
|
|
at_exit() {
|
|
rm -rfv "${CONFIG_FILE:?}"
|
|
}
|
|
|
|
(! systemd-detect-virt -cq)
|
|
|
|
trap at_exit EXIT
|
|
|
|
ORIG_MODULES_LOAD_CONFIG="$(systemd-analyze cat-config modules-load.d)"
|
|
|
|
# Check if we have required kernel modules
|
|
modprobe --all --resolve-alias dummy
|
|
|
|
mkdir -p /run/modules-load.d/
|
|
|
|
"$MODULES_LOAD_BIN"
|
|
"$MODULES_LOAD_BIN" --help
|
|
"$MODULES_LOAD_BIN" --version
|
|
|
|
# Explicit config file
|
|
modprobe -v --all --remove dummy
|
|
printf "dummy" >"$CONFIG_FILE"
|
|
"$MODULES_LOAD_BIN" "$CONFIG_FILE" |& tee /tmp/out.log
|
|
grep -E "Inserted module .*dummy" /tmp/out.log
|
|
|
|
# Implicit config file
|
|
modprobe -v --all --remove dummy
|
|
printf "dummy" >"$CONFIG_FILE"
|
|
"$MODULES_LOAD_BIN" |& tee /tmp/out.log
|
|
grep -E "Inserted module .*dummy" /tmp/out.log
|
|
|
|
# Valid & invalid data mixed together
|
|
modprobe -v --all --remove dummy
|
|
cat >"$CONFIG_FILE" <<EOF
|
|
|
|
dummy
|
|
dummy
|
|
dummy
|
|
dummy
|
|
dummy
|
|
\\n\n\n\\\\\\
|
|
|
|
dumm!@@123##2455
|
|
# This is a comment
|
|
$(printf "%.0sx" {1..4096})
|
|
dummy
|
|
dummy
|
|
foo-bar-baz
|
|
foo_bar_baz
|
|
foo_bar-baz
|
|
1
|
|
"
|
|
'
|
|
EOF
|
|
"$MODULES_LOAD_BIN" |& tee /tmp/out.log
|
|
grep -E "^Inserted module .*dummy" /tmp/out.log
|
|
# Module names are "normalized", i.e., dashes are converted to underscores
|
|
grep -E "^Failed to find module .*foo_bar_baz" /tmp/out.log
|
|
(! grep -E "^Failed to find module .*foo-bar-baz" /tmp/out.log)
|
|
(! grep -E "^Failed to find module .*foo_bar-baz" /tmp/out.log)
|
|
(! grep -E "This is a comment" /tmp/out.log)
|
|
# Each module should be loaded only once, even if specified multiple times
|
|
[[ "$(grep -Ec "^Inserted module" /tmp/out.log)" -eq 1 ]]
|
|
[[ "$(grep -Ec "^Failed to find module" /tmp/out.log)" -eq 7 ]]
|
|
|
|
# Command line arguments
|
|
modprobe -v --all --remove dummy
|
|
# Make sure we have no config files left over that might interfere with
|
|
# following tests
|
|
rm -fv "$CONFIG_FILE"
|
|
[[ "$ORIG_MODULES_LOAD_CONFIG" == "$(systemd-analyze cat-config modules-load.d)" ]]
|
|
CMDLINE="ro root= modules_load= modules_load=, / = modules_load=foo-bar-baz,dummy modules_load=dummy,dummy,dummy"
|
|
SYSTEMD_PROC_CMDLINE="$CMDLINE" "$MODULES_LOAD_BIN" |& tee /tmp/out.log
|
|
grep -E "^Inserted module .*dummy" /tmp/out.log
|
|
# Module names are "normalized", i.e., dashes are converted to underscores
|
|
(! grep -E "^Failed to find module .*foo-bar-baz" /tmp/out.log)
|
|
grep -E "^Failed to find module .*foo_bar_baz" /tmp/out.log
|
|
# Each module should be loaded only once, even if specified multiple times
|
|
[[ "$(grep -Ec "^Inserted module" /tmp/out.log)" -eq 1 ]]
|
|
|
|
(! "$MODULES_LOAD_BIN" --nope)
|
|
(! "$MODULES_LOAD_BIN" /foo/bar/baz)
|