33 lines
1.1 KiB
Bash
33 lines
1.1 KiB
Bash
if [ -e /proc/vmcore ] && ! grep -q nokdump /proc/cmdline ; then
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DIR="/var/crash/$(date +%Y%m%d-%H%M%S)"
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msg "Found kernel crash dump, saving vmcore to $DIR...\n"
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mkdir -p "$DIR"
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makedumpfile -l --message-level 1 -d 31 /proc/vmcore "$DIR"/vmcore.incomplete &&
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mv "$DIR"/vmcore.incomplete "$DIR"/vmcore
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msg "Found kernel crash dump, saving dmesg to $DIR...\n"
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vmcore-dmesg /proc/vmcore >"$DIR"/vmcore-dmesg.txt.incomplete &&
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mv "$DIR"/vmcore-dmesg.txt.incomplete "$DIR"/vmcore-dmesg.txt
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sync
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touch /run/runit/reboot
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msg "Crash dump done, triggering reboot.\n"
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exit 100 # force reboot
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fi
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if [ $(cat /sys/kernel/kexec_crash_size) = 0 ]; then
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msg_warn "Loading crash kernel skipped, booted without crashkernel=NNN.\n"
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else
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KVER="$(uname -r)"
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if [ -f /boot/initramfs-${KVER}kdump.img ]; then
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INITRD=/boot/initramfs-${KVER}kdump.img
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else
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INITRD=/boot/initramfs-${KVER}.img
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fi
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APPEND="irqpoll nr_cpus=1 maxcpus=1 reset_devices udev.children-max=2 panic=10 cgroup_disable=memory mce=off numa=off"
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msg "Loading crash kernel..."
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kexec --load-panic /boot/vmlinuz-${KVER} \
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--initrd="$INITRD" --reuse-cmdline --append="$APPEND" &&
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msg_ok
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fi
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