ACPI: fix "buggy BIOS check" when CPUs are hot removed
akataria at vmware.com
Mon Jun 23 23:41:11 UTC 2008
Already in mainline....required for CPU hotplug.
VMware, Inc. is providing the following patch to you under the terms of the GPL
version 2 and no later version. This patch is provided as is, with no
warranties or support. VMware disclaims all liability in connection with
the use/inability to use this patch. Any use of the attached is
considered acceptance of the above.
Author: Alok Kataria <akataria at vmware.com>
Date: Tue Apr 8 17:41:56 2008 -0700
acpi: fix "buggy BIOS check" when CPUs are hot removed
Fixes a BUG in ACPI hotplugging.
processor_device_array[pr->id] needs to be set to NULL when removing a CPU.
Else the "buggy BIOS check" in acpi_processor_start mistakenly fires when a
CPU is removed from the system and then later re-added.
Signed-off-by: Alok N Kataria <akataria at vmware.com>
Signed-off-by: Dan Arai <arai at vmware.com>
Cc: Len Brown <lenb at kernel.org>
Cc: <stable at kernel.org>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
--- ubuntu-hardy.orig/drivers/acpi/processor_core.c 2008-06-06 10:59:05.000000000 -0700
+++ ubuntu-hardy/drivers/acpi/processor_core.c 2008-06-12 10:28:15.000000000 -0700
@@ -792,7 +792,7 @@
processors[pr->id] = NULL;
+ processor_device_array[pr->id] = NULL;
More information about the kernel-team