kdump, remove panic_on_warn from 2nd kernel cmdline
With the inclusion of 'panic_on_warn', http://marc.info/?l=linux-api&m=141570937328528&w=2 and which is now staged in Andrew Morton's tree, we need to remove 'panic_on_warn' from the 2nd kernel's cmdline. If it is included it is possible a non-fatal warning could panic the second kernel. Before: [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-3.10.0+ root=/dev/mapper/rhel_intel--canoepass--05-root ro rd.lvm.lv=rhel_intel-canoepass-05/root rd.lvm.lv=rhel_intel-canoepass-05/swap console=ttyS0,115200n81 LANG=en_US.UTF-8 systemd.debug panic_on_warn=1 irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off numa=off udev.children-max=2 panic=10 rootflags=nofail acpi_no_memhotplug disable_cpu_apicid=0 elfcorehdr=839092K After: [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-3.10.0+ root=/dev/mapper/rhel_intel--canoepass--05-root ro rd.lvm.lv=rhel_intel-canoepass-05/root rd.lvm.lv=rhel_intel-canoepass-05/swap console=ttyS0,115200n81 LANG=en_US.UTF-8 systemd.debug irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off numa=off udev.children-max=2 panic=10 rootflags=nofail acpi_no_memhotplug disable_cpu_apicid=0 elfcorehdr=839092K Signed-off-by: Prarit Bhargava <prarit@redhat.com> Acked-by: Vivek Goyal <vgoyal@redhat.com>
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kdumpctl
2
kdumpctl
@ -105,7 +105,7 @@ prepare_cmdline()
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else
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else
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cmdline=${KDUMP_COMMANDLINE}
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cmdline=${KDUMP_COMMANDLINE}
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fi
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fi
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cmdline=`remove_cmdline_param "$cmdline" crashkernel hugepages hugepagesz`
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cmdline=`remove_cmdline_param "$cmdline" crashkernel hugepages hugepagesz panic_on_warn`
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cmdline="${cmdline} ${KDUMP_COMMANDLINE_APPEND}"
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cmdline="${cmdline} ${KDUMP_COMMANDLINE_APPEND}"
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