Re: [OS-BUILD PATCHv2 0/0] [redhat] Generate a crashkernel.conf for each kernel build

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From: Kairui Song on gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1171#note_618449442

Thanks for all the comments and suggestions!

I've updated the default crashkernel value for x86_64 and s390 to
`crashkernel=1G-4G:192M,4G-64G:256M,64G-:512M`. Also removed some untested
arches.

This should be a suitable value for most use cases, and it's consistent with
RHEL8.

In RHEL9 we can't reduce the default crashkernel value, the kernel itself
could consume about ~60M, initramfs and userspace consumption is also growing.
We are working on reducing memory usage. But at this point let set the default
value to a safer value that most machine won't encounter OOM in kdump kernel.
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