This is a note to let you know that I've just added the patch titled
MIPS: Fix 64k page support for 32 bit kernels.
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mips-fix-64k-page-support-for-32-bit-kernels.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d7de413475f443957a0c1d256e405d19b3a2cb22 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Date: Thu, 4 Feb 2016 01:24:40 +0100
Subject: MIPS: Fix 64k page support for 32 bit kernels.
From: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
commit d7de413475f443957a0c1d256e405d19b3a2cb22 upstream.
TASK_SIZE was defined as 0x7fff8000UL which for 64k pages is not a
multiple of the page size. Somewhere further down the math fails
such that executing an ELF binary fails.
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Tested-by: Joshua Henderson <joshua.henderson@xxxxxxxxxxxxx>
Cc: James Hogan <james.hogan@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/include/asm/processor.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -45,7 +45,7 @@ extern unsigned int vced_count, vcei_cou
* User space process size: 2GB. This is hardcoded into a few places,
* so don't change it unless you know what you are doing.
*/
-#define TASK_SIZE 0x7fff8000UL
+#define TASK_SIZE 0x80000000UL
#endif
#define STACK_TOP_MAX TASK_SIZE
Patches currently in stable-queue which might be from ralf@xxxxxxxxxxxxxx are
queue-4.4/mips-fix-64k-page-support-for-32-bit-kernels.patch
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