mm: fix memory onlining under the debug kernel (!303) · Merge requests · Red Hat / centos-stream / src / kernel / centos-stream-9

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David Hildenbrand requested to merge davidhildenbrand/centos-stream-9:bz2029493 into main Jan 03, 2022

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2029493

Tested: Booted the debug kernel, hotplugged a 8 GiB DIMM and memory was onlined successfully

Upstream Status: linux.git

Memory onlining currently fails under the debug kernel because KASAN fails to allocate fixed memory areas within the KASAN reserved range. vmalloc needs fixing to properly support allocating fixed memory areas again.

Signed-off-by: David Hildenbrand david@redhat.com

Edited Jan 03, 2022 by David Hildenbrand

mm: fix memory onlining under the debug kernel

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