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Make sure all output goes to stderr #2146

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merged 3 commits into from
Sep 21, 2023
Merged

Make sure all output goes to stderr #2146

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12f90db
Make sure all output goes to stderr
ankon Sep 20, 2023
593f99b
Remove unneeded newline
ankon Sep 20, 2023
52e13ee
Rename function to match its (changed) behavior
ankon Sep 21, 2023
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9 changes: 4 additions & 5 deletions judge/create_cgroups.in
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,8 @@ JUDGEHOSTUSER=@DOMJUDGE_USER@
CGROUPBASE=@judgehost_cgroupdir@

print_cgroup_instruction () {
echo ""
echo "$1" >&2
echo "" >&2
echo "To fix this, please make the following changes:
1. In /etc/default/grub, add 'cgroup_enable=memory swapaccount=1' to GRUB_CMDLINE_LINUX_DEFAULT.
On modern distros (e.g. Debian bullseye and Ubuntu Jammy Jellyfish) which have cgroup v2 enabled by default,
Expand All @@ -24,16 +25,14 @@ for i in cpuset memory; do
mkdir -p $CGROUPBASE/$i
if [ ! -d $CGROUPBASE/$i/ ]; then
if ! mount -t cgroup -o$i $i $CGROUPBASE/$i/; then
echo "Error: Can not mount $i cgroup. Probably cgroup support is missing from running kernel. Unable to continue."
print_cgroup_instruction
print_cgroup_instruction "Error: Can not mount $i cgroup. Probably cgroup support is missing from running kernel. Unable to continue."
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fi
fi
mkdir -p $CGROUPBASE/$i/domjudge
done

if [ ! -f $CGROUPBASE/memory/memory.limit_in_bytes ] || [ ! -f $CGROUPBASE/memory/memory.memsw.limit_in_bytes ]; then
echo "Error: cgroup support missing memory features in running kernel. Unable to continue."
print_cgroup_instruction
print_cgroup_instruction "Error: cgroup support missing memory features in running kernel. Unable to continue."
fi

chown -R $JUDGEHOSTUSER $CGROUPBASE/*/domjudge
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