115 lines
4.5 KiB
Bash
Executable File
115 lines
4.5 KiB
Bash
Executable File
#!/bin/bash
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# $1: target arch
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SED_EXP=""
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generate()
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{
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sed "$SED_EXP" << EOF
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# Kernel Version string for the -kdump kernel, such as 2.6.13-1544.FC5kdump
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# If no version is specified, then the init script will try to find a
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# kdump kernel with the same version number as the running kernel.
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KDUMP_KERNELVER=""
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# The kdump commandline is the command line that needs to be passed off to
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# the kdump kernel. This will likely match the contents of the grub kernel
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# line. For example:
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# KDUMP_COMMANDLINE="ro root=LABEL=/"
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# Dracut depends on proper root= options, so please make sure that appropriate
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# root= options are copied from /proc/cmdline. In general it is best to append
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# command line options using "KDUMP_COMMANDLINE_APPEND=".
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# If a command line is not specified, the default will be taken from
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# /proc/cmdline
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KDUMP_COMMANDLINE=""
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# This variable lets us remove arguments from the current kdump commandline
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# as taken from either KDUMP_COMMANDLINE above, or from /proc/cmdline
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# NOTE: some arguments such as crashkernel will always be removed
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KDUMP_COMMANDLINE_REMOVE="hugepages hugepagesz slub_debug quiet log_buf_len swiotlb cma hugetlb_cma ignition.firstboot"
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# This variable lets us append arguments to the current kdump commandline
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# after processed by KDUMP_COMMANDLINE_REMOVE
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KDUMP_COMMANDLINE_APPEND="irqpoll maxcpus=1 reset_devices novmcoredd cma=0 hugetlb_cma=0"
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# Any additional kexec arguments required. In most situations, this should
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# be left empty
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#
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# Example:
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# KEXEC_ARGS="--elf32-core-headers"
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KEXEC_ARGS=""
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#Where to find the boot image
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#KDUMP_BOOTDIR="/boot"
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#What is the image type used for kdump
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KDUMP_IMG="vmlinuz"
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#What is the images extension. Relocatable kernels don't have one
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KDUMP_IMG_EXT=""
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# Logging is controlled by following variables in the first kernel:
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# - @var KDUMP_STDLOGLVL - logging level to standard error (console output)
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# - @var KDUMP_SYSLOGLVL - logging level to syslog (by logger command)
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# - @var KDUMP_KMSGLOGLVL - logging level to /dev/kmsg (only for boot-time)
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#
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# In the second kernel, kdump will use the rd.kdumploglvl option to set the
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# log level in the above KDUMP_COMMANDLINE_APPEND.
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# - @var rd.kdumploglvl - logging level to syslog (by logger command)
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# - for example: add the rd.kdumploglvl=3 option to KDUMP_COMMANDLINE_APPEND
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#
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# Logging levels: no logging(0), error(1),warn(2),info(3),debug(4)
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#
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# KDUMP_STDLOGLVL=3
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# KDUMP_SYSLOGLVL=0
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# KDUMP_KMSGLOGLVL=0
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EOF
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}
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update_param()
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{
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SED_EXP="${SED_EXP}s/^$1=.*$/$1=\"$2\"/;"
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}
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case "$1" in
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aarch64)
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update_param KEXEC_ARGS "-s"
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update_param KDUMP_COMMANDLINE_APPEND \
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"irqpoll nr_cpus=1 reset_devices cgroup_disable=memory udev.children-max=2 panic=10 swiotlb=noforce novmcoredd cma=0 hugetlb_cma=0"
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;;
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i386)
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update_param KDUMP_COMMANDLINE_APPEND \
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"irqpoll nr_cpus=1 reset_devices numa=off udev.children-max=2 panic=10 transparent_hugepage=never novmcoredd cma=0 hugetlb_cma=0"
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;;
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ppc64)
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update_param KEXEC_ARGS "--dt-no-old-root"
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update_param KDUMP_COMMANDLINE_REMOVE \
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"hugepages hugepagesz slub_debug quiet log_buf_len swiotlb hugetlb_cma ignition.firstboot"
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update_param KDUMP_COMMANDLINE_APPEND \
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"irqpoll maxcpus=1 noirqdistrib reset_devices cgroup_disable=memory numa=off udev.children-max=2 ehea.use_mcs=0 panic=10 kvm_cma_resv_ratio=0 transparent_hugepage=never novmcoredd hugetlb_cma=0"
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;;
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ppc64le)
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update_param KEXEC_ARGS "--dt-no-old-root -s"
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update_param KDUMP_COMMANDLINE_REMOVE \
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"hugepages hugepagesz slub_debug quiet log_buf_len swiotlb hugetlb_cma ignition.firstboot"
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update_param KDUMP_COMMANDLINE_APPEND \
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"irqpoll maxcpus=1 noirqdistrib reset_devices cgroup_disable=memory numa=off udev.children-max=2 ehea.use_mcs=0 panic=10 kvm_cma_resv_ratio=0 transparent_hugepage=never novmcoredd hugetlb_cma=0"
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;;
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s390x)
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update_param KEXEC_ARGS "-s"
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update_param KDUMP_COMMANDLINE_REMOVE \
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"hugepages hugepagesz slub_debug quiet log_buf_len swiotlb vmcp_cma cma hugetlb_cma prot_virt ignition.firstboot zfcp.allow_lun_scan"
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update_param KDUMP_COMMANDLINE_APPEND \
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"nr_cpus=1 cgroup_disable=memory numa=off udev.children-max=2 panic=10 transparent_hugepage=never novmcoredd vmcp_cma=0 cma=0 hugetlb_cma=0"
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;;
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x86_64)
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update_param KEXEC_ARGS "-s"
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update_param KDUMP_COMMANDLINE_APPEND \
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"irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off numa=off udev.children-max=2 panic=10 acpi_no_memhotplug transparent_hugepage=never nokaslr hest_disable novmcoredd cma=0 hugetlb_cma=0"
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;;
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*)
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echo "Warning: Unknown architecture '$1', using default sysconfig template." >&2
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;;
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esac
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generate
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