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Commit 88d927e9 authored by Tony Lindgren's avatar Tony Lindgren Committed by Russell King
Browse files

ARM: 6465/1: Fix data abort accessing proc_info from __lookup_processor_type 



Commit 5085f3ff added better support for
CONFIG_HOTPLUG_CPU by keeping proc_info around. However, depending on
the Kconfig options selected, this can make the booting fail mysteriously
early on.

Turns out a data abort can happen in __lookup_processor in ldmia r5 {r3, r4}.
When it happens the address loaded to r5 is not aligned. Fix the problem by
aligning proc_info.

Reported-by: default avatarAnand Gadiyar <gadiyar@ti.com>
Tested-by: default avatarAnand Gadiyar <gadiyar@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent d463f363

arch/arm/kernel/vmlinux.lds.S

+1 −0
Original line number Diff line number Diff line
@@ -113,6 +113,7 @@ SECTIONS 
			*(.rodata.*)

			*(.glue_7)

			*(.glue_7t)

		. = ALIGN(4);

		*(.got)			/* Global offset table		*/

			ARM_CPU_KEEP(PROC_INFO)

	}