Preallocate pgdat struct for all nodes during boot (!630) · Merge requests · Red Hat / centos-stream / src / kernel / centos-stream-9

Nico Pache requested to merge npache/centos-stream-9:bz2024054.post into main Mar 28, 2022

The page allocator blows up when an allocation from a possible node is requested.
The underlying reason is that NODE_DATA for the specific node is not allocated.

Preallocate the pgdat struct for all nodes rather then all online nodes to handle these cases more gracefully.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2024054

Upstream-Status: Linus

Signed-off-by: Nico Pache npache@redhat.com

Edited Mar 28, 2022 by Nico Pache

Preallocate pgdat struct for all nodes during boot

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