Hi Andrew, After merging the akpm-current tree, today's linux-next build (x86-64 allmodconfig) failed like this:
scripts/Makefile.kasan:21: CONFIG_KASAN: compiler does not support all options.
Trying minimal configuration
scripts/Makefile.kasan:21: CONFIG_KASAN: compiler does not support all options.
Trying minimal configuration
x86_64-linux-gcc: warning: unrecognized argument to -fsanitize= option:
'kernel-address'
lots and lots of this last message ...
Caused by the commits that added the kernel address sanitizer.
gcc version 4.9.0 cross compiling from Powerpc64.
I have added the following patch for today (after which I only got one
of the "compiler does not support all options" messages).
From: Stephen Rothwell <s...@canb.auug.org.au>
Date: Wed, 4 Feb 2015 18:43:52 +1100
Subject: [PATCH] disable CONFIG_KASAN for now
Signed-off-by: Stephen Rothwell <s...@canb.auug.org.au>
---
lib/Kconfig.kasan | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index 4fecaedc80a2..4301bb56e3ce 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -1,7 +1,7 @@
config HAVE_ARCH_KASAN
bool
-if HAVE_ARCH_KASAN
+if HAVE_ARCH_KASAN && BROKEN
config KASAN
bool "KASan: runtime memory debugger"
--
2.1.4
--
Cheers,
Stephen Rothwell s...@canb.auug.org.au
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