Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [ 38/44] ARM: mxs: Remove MMAP_MIN_ADDR setting from mxs_defconfig | Date | Mon, 13 Aug 2012 15:02:45 -0700 |
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From: Greg KH <gregkh@linuxfoundation.org>
3.0-stable review patch. If anyone has any objections, please let me know.
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From: Marek Vasut <marex@denx.de>
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 <marex@denx.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Wolfgang Denk <wd@denx.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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
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