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Forward logs in kdump kernel to console directly

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Don't use any log storage and forward to console directly, this make
console output more useful, and also save more memory. On a fresh
installed Fedora 30 it saved ~5M of memory, and the amount of log being
printed to console is still accetable.

Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
This commit is contained in:
Kairui Song 2019-06-28 21:44:03 +08:00
parent b998b90197
commit 5b26c1f8b2
1 changed files with 7 additions and 0 deletions
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7
dracut-module-setup.sh
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@ -822,4 +822,11 @@ install() {
echo "[Manager]" > ${initdir}/etc/systemd/system.conf.d/kdump.conf
echo "DefaultTimeoutStartSec=300s" >> ${initdir}/etc/systemd/system.conf.d/kdump.conf
fi
# Forward logs to console directly, this avoids unneccessary memory
# consumption and make console output more useful
mkdir -p ${initdir}/etc/systemd/journald.conf.d
echo "[Journal]" > ${initdir}/etc/systemd/journald.conf.d/kdump.conf
echo "Storage=none" >> ${initdir}/etc/systemd/journald.conf.d/kdump.conf
echo "ForwardToConsole=yes" >> ${initdir}/etc/systemd/journald.conf.d/kdump.conf
}