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kdump on Power RHEL 8.5

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This commit is contained in:
Mark Gurevich 2022-03-23 14:39:06 -04:00
parent 60b927285f
commit 8efb85c88b
2 changed files with 6 additions and 2 deletions
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6
docs/source/guides/admin-guides/manage_clusters/common/deployment/enable_kdump.rst
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@ -86,7 +86,7 @@ If the NFS server is the Service Node or Management Node, the server can be left
The ``crashkernelsize`` attribute
---------------------------------
To allow the Operating System to automatically reserve the appropriate amount of memory for the ``kdump`` kernel, set ``crashkernelsize=auto``.
To allow the Operating System to automatically reserve the appropriate amount of memory for the ``kdump`` kernel, set ``crashkernelsize=auto``. For RHELS 8.5 on System P machines, do not use ``auto``, instead set specific size (see below).
For setting specific sizes, use the following example:
@ -102,6 +102,10 @@ For setting specific sizes, use the following example:
chdef -t osimage <image name> crashkernelsize=<size>@32M
* For System P machines running RHELS 8.5 , set the ``crashkernelsize`` using this format: ::
chdef -t osimage <image name> crashkernelsize=<size>@64M
.. note:: The value of the ``crashkernelsize`` depends on the total physical memory size on the machine. For more about size, refer to `Appedix`_
If ``kdump`` start displays error like this: ::

2
xCAT-test/autotest/testcase/kdump/linux_diskless_kdump
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@ -41,7 +41,7 @@ cmd:cd /etc; export exports;cd -;service nfs-server restart
cmd:chdef -t osimage __GETNODEATTR($$CN,os)__-__GETNODEATTR($$CN,arch)__-netboot-compute dump=nfs://$$MN/opt/xcat/share/xcat/tools/autotest/kdumpdir
check:rc==0
cmd:chdef -t osimage __GETNODEATTR($$CN,os)__-__GETNODEATTR($$CN,arch)__-netboot-compute crashkernelsize=auto
cmd:if [[ "__GETNODEATTR($$CN,arch)__" = "ppc64le" ]] && [[ "__GETNODEATTR($$CN,os)__" =~ "rhels8.5" ]]; then chdef -t osimage __GETNODEATTR($$CN,os)__-__GETNODEATTR($$CN,arch)__-netboot-compute crashkernelsize=512M@64M; else chdef -t osimage __GETNODEATTR($$CN,os)__-__GETNODEATTR($$CN,arch)__-netboot-compute crashkernelsize=auto; fi
check:rc==0
cmd:chdef -t node $$CN -p postscripts=enablekdump