https://github.com/torvalds/linux
Revision f363d16fbb9374c0bd7f2757d412c287169094c9 authored by Aaron Durbin on 17 May 2007, 05:11:06 UTC, committed by Linus Torvalds on 17 May 2007, 12:23:04 UTC
Strip __cpuinit[data] from Node <-> PXM routines and supporting data
structures.  Also make pxm_to_node_map and node_to_pxm_map local to the
numa acpi module.

This fixes a bug triggered by the following conditions:
- boot on a machine with a SLIT table defined
- kernel is configured w/ CONFIG_HOTPLUG_CPU=n
- cat /sys/devices/system/node/node*/distance
This will cause an oops by calling into a freed memory section.

In particular, on x86_64, __node_distance calls node_to_pxm().

Signed-off-by: Aaron Durbin <adurbin@google.com>
Cc: Len Brown <lenb@kernel.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 0aa817f
History
Tip revision: f363d16fbb9374c0bd7f2757d412c287169094c9 authored by Aaron Durbin on 17 May 2007, 05:11:06 UTC
acpi: fix potential call to a freed memory section.
Tip revision: f363d16
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