brcm47xx: describe 300-fork_cacheflush.patch & 310-no_highpage.patch

[openwrt/openwrt.git] / target / linux / brcm47xx / patches-4.1 / 300-fork_cacheflush.patch

diff --git a/target/linux/brcm47xx/patches-4.1/300-fork_cacheflush.patch b/target/linux/brcm47xx/patches-4.1/300-fork_cacheflush.patch
index 0f79debc6bd9617e8369f1eae7a495157dcebaa6..daa2c1adf05cfe5c71556e1b88dd435c4385235d 100644 (file)
--- a/target/linux/brcm47xx/patches-4.1/300-fork_cacheflush.patch
+++ b/target/linux/brcm47xx/patches-4.1/300-fork_cacheflush.patch
@@ -1,3 +1,13 @@
+From: Wolfram Joost <dbox2@frokaschwei.de>
+Subject: [PATCH] fork_cacheflush
+
+On ASUS WL-500gP there are many unexpected "Segmentation fault"s that
+seem to be caused by a kernel. They can be avoided by:
+1) Disabling highpage
+2) Using flush_cache_mm in flush_cache_dup_mm
+
+For details see OpenWrt ticket #2035 https://dev.openwrt.org/ticket/2035
+---
 --- a/arch/mips/include/asm/cacheflush.h
 +++ b/arch/mips/include/asm/cacheflush.h
 @@ -46,7 +46,7 @@