From: Dave Young on gitlab.com https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1023#note_554095592 Hi David, Ok, I had a discussion in kdump team, for X86 since we have crashkernel=,high and we can reserve more in high memory region so the risk is low. The only case is what you mentioned if someone allocate cma=2G then kdump resrevation may fail if the system ram is small. As the default CMA_SIZE_MBYTES is 0 we should be fine to the change. As for kdump kernel, we can pass cma=0 in userspace via 2nd kernel cmdline param, can cma=0 override the behavior in ppc64/s390 as you mentioned? _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
