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|
summary: Enable and use coredump options on UC
details: |
Use coredump options and ensure that systemd-coredump can generate
core files when configured to do so.
systems: [-ubuntu-core-1*, -ubuntu-core-20*, -ubuntu-core-22*]
restore: |
rm -f /var/lib/systemd/coredump/*
execute: |
# To get VERSION_ID defined
. /etc/os-release
cfg_path=/etc/systemd/coredump.conf.d/ubuntu-core.conf
# coredumps should be initially disabled
expect=$(printf "[Coredump]\nStorage=none\nProcessSizeMax=0\n")
test "$expect" = "$(cat $cfg_path)"
# Install snap with a service that simply waits
cp -r "$TESTSLIB"/snaps/core-dump-snap .
core_dump_d=core-dump-snap
BASE=core"$VERSION_ID"
sed -i "s/##BASE##/$BASE/" "$core_dump_d"/meta/snap.yaml
DUMP_SNAP_FILE=core-dump-snap.snap
snap pack "$core_dump_d" --filename="$DUMP_SNAP_FILE"
snap install --dangerous "$DUMP_SNAP_FILE"
# try to generate dump
CRASH_PID=$(retry --wait 1 -n 5 pgrep crash.sh)
kill -ABRT "$CRASH_PID"
retry --wait 1 -n 5 sh -c "coredumpctl | MATCH 'none .*/bin/bash'"
# This cleans-up the coredumctl list
journalctl --rotate; journalctl --vacuum-time=1ms
# enable coredump with a max use size
max_use=10M
snap set system system.coredump.enable=true
snap set system system.coredump.maxuse="$max_use"
expect=$(printf "[Coredump]\nStorage=external\nMaxUse=%s\n" "$max_use")
test "$expect" = "$(cat $cfg_path)"
# Force generation of core dump and check it is present
CRASH_PID=$(retry --wait 1 -n 5 pgrep crash.sh)
kill -ABRT "$CRASH_PID"
retry --wait 1 -n 5 sh -c "coredumpctl | MATCH 'present .*/bin/bash'"
coredumpctl dump --output=core
test -s core
# This cleans-up the coredumctl list and the core dump
journalctl --rotate; journalctl --vacuum-time=1ms
rm /var/lib/systemd/coredump/*
# Finally, disable again
snap set system system.coredump.enable=false
expect=$(printf "[Coredump]\nStorage=none\nProcessSizeMax=0\n")
test "$expect" = "$(cat $cfg_path)"
|
