7d4196d32f
This update adds 'softdog.soft_panic=1' kernel config option to system type kickstarts so that a kernel softdog timeout generates a crash dump. Change-Id: I8a7f67fbc44cdd268254c12466c40bd2be17870f Partial-Fix: 1898602 Depends-On: https://review.opendev.org/#/c/758564 Depends-On: https://review.opendev.org/#/c/758634 Signed-off-by: Eric MacDonald <eric.macdonald@windriver.com>
53 lines
1.5 KiB
INI
53 lines
1.5 KiB
INI
%post --erroronfail
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# Source common functions
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. /tmp/ks-functions.sh
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## Custom kernel options
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KERN_OPTS=" intel_iommu=off usbcore.autosuspend=-1"
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## Add kernel options to ensure an selinux is disabled
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KERN_OPTS="${KERN_OPTS} selinux=0 enforcing=0"
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# Add kernel options to ensure NMI watchdog is enabled, if supported
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KERN_OPTS="${KERN_OPTS} nmi_watchdog=panic,1 softlockup_panic=1"
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# Add kernel option to panic on a softdog timeout
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KERN_OPTS="${KERN_OPTS} softdog.soft_panic=1"
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# Add kernel option to disable biosdevname if enabled
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# As this may already be in GRUB_CMDLINE_LINUX, only add if it is not already present
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grep -q '^GRUB_CMDLINE_LINUX=.*biosdevname=0' /etc/default/grub
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if [ $? -ne 0 ]; then
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KERN_OPTS="${KERN_OPTS} biosdevname=0"
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fi
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# k8s updates:
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#KERN_OPTS="${KERN_OPTS} cgroup_disable=memory"
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KERN_OPTS="${KERN_OPTS} user_namespace.enable=1"
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# If the installer asked us to use security related kernel params, use
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# them in the grub line as well (until they can be configured via puppet)
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grep -q 'nopti' /proc/cmdline
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if [ $? -eq 0 ]; then
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KERN_OPTS="${KERN_OPTS} nopti"
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fi
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grep -q 'nospectre_v2' /proc/cmdline
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if [ $? -eq 0 ]; then
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KERN_OPTS="${KERN_OPTS} nospectre_v2"
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fi
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grep -q 'nospectre_v1' /proc/cmdline
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if [ $? -eq 0 ]; then
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KERN_OPTS="${KERN_OPTS} nospectre_v1"
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fi
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perl -pi -e 's/(GRUB_CMDLINE_LINUX=.*)\"/\1'"$KERN_OPTS"'\"/g' /etc/default/grub
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if [ -d /sys/firmware/efi ] ; then
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grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg
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else
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grub2-mkconfig -o /boot/grub2/grub.cfg
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fi
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%end
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