This is a note to let you know that I've just added the patch titled
ARM: mxs: Remove MMAP_MIN_ADDR setting from mxs_defconfig
to the 3.0-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:
arm-mxs-remove-mmap_min_addr-setting-from-mxs_defconfig.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 3bed491c8d28329e34f8a31e3fe64d03f3a350f1 Mon Sep 17 00:00:00 2001
From: Marek Vasut <[email protected]>
Date: Fri, 3 Aug 2012 20:54:48 +0200
Subject: ARM: mxs: Remove MMAP_MIN_ADDR setting from mxs_defconfig
From: Marek Vasut <[email protected]>
commit 3bed491c8d28329e34f8a31e3fe64d03f3a350f1 upstream.
The CONFIG_DEFAULT_MMAP_MIN_ADDR was set to 65536 in mxs_defconfig,
this caused severe breakage of userland applications since the upper
limit for ARM is 32768. By default CONFIG_DEFAULT_MMAP_MIN_ADDR is
set to 4096 and can also be changed via /proc/sys/vm/mmap_min_addr
if needed.
Quoting Russell King [1]:
"4096 is also fine for ARM too. There's not much point in having
defconfigs change it - that would just be pure noise in the config
files."
the CONFIG_DEFAULT_MMAP_MIN_ADDR can be removed from the defconfig
altogether.
This problem was introduced by commit cde7c41 (ARM: configs: add
defconfig for mach-mxs).
[1] http://marc.info/?l=linux-arm-kernel&m=134401593807820&w=2
Signed-off-by: Marek Vasut <[email protected]>
Cc: Russell King <[email protected]>
Cc: Wolfgang Denk <[email protected]>
Signed-off-by: Shawn Guo <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/arm/configs/mxs_defconfig | 1 -
1 file changed, 1 deletion(-)
--- a/arch/arm/configs/mxs_defconfig
+++ b/arch/arm/configs/mxs_defconfig
@@ -29,7 +29,6 @@ CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_AEABI=y
-CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
CONFIG_AUTO_ZRELADDR=y
CONFIG_FPE_NWFPE=y
CONFIG_NET=y
Patches currently in stable-queue which might be from [email protected] are
queue-3.0/arm-mxs-remove-mmap_min_addr-setting-from-mxs_defconfig.patch
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