Hello, I'm writing this mail to report the kallsyms problem as requested by 
following error message.
The reason why I'm reporting this to linux-kernel is get_maintainer.pl show this 
mailing list.
Please let me know if this is not the appropriate place to report this kinds of
problem.

------------------------------------------
     Inconsistent kallsyms data
     This is a bug - please report about it
     Try make KALLSYMS_EXTRA_PASS=1 as a workaround
     make: *** [vmlinux] エラー 1
------------------------------------------
o Symptom
     - Linux 3.4 Base
     - Use .config_kallsymerr
     - arm-linux-gnueabihf-gcc : version 4.6.3
     - KALLSYMS_EXTRA_PASS=1 option does not work.

o How to solve the problem
     When the patch (*1) is applied, the build error solved.
     But this patch is not merged into the main line.
     (*1) https://bugzilla.kernel.org/show_bug.cgi?id=69021

o Additional comment
     Would like to know if the patch (*1) is valid way to solve this problem or not.
     if not, I hope kallsym expert to analyze it. The problem can be easily 
duplicated
     as described below.
     If requested, I'm happy to test the another patch, or to provide the 
additional information.

     I can not try the latest kernel version 4.x because this kallsym build error
     problem is highly depending on the kernel configuration and source code, thus
   the problem would not be duplicated with such a version.

o How to duplicate the problem

     # Setup the development environment
     Download following vmware image. This image is debian wheezy with all of
     cross compile environment prepared.
http://armadillo.atmark-techno.com/files/downloads/atde/atde5-i386-20150612.tar.xz

     # Download the linux kernel, copy .config, compile
     [ATDE ~]$ wget 
http://armadillo.atmark-techno.com/files/downloads/armadillo-840/source/linux-3.4-at14.tar.gz
     [ATDE ~]$ wtar xvfz linux-3.4-at14.tar.gz
     [ATDE ~]$ wcp .config_kallsymerr
     [ATDE ~]$ wmake ARCH=arm  CROSS_COMPILE=arm-linux-gnueabihf-
     ...
         CHK     include/linux/version.h
         CHK     include/generated/utsrelease.h
     make[1]: `include/generated/mach-types.h' は更新済みです
         CALL    scripts/checksyscalls.sh
         CHK     include/generated/compile.h
         CHK     kernel/config_data.h
         KSYM    .tmp_kallsyms1.S
         AS      .tmp_kallsyms1.o
         LD      .tmp_vmlinux2
         KSYM    .tmp_kallsyms2.S
         AS      .tmp_kallsyms2.o
         LD      vmlinux
         SYSMAP  System.map
         SYSMAP  .tmp_System.map
     Inconsistent kallsyms data
     This is a bug - please report about it
     Try make KALLSYMS_EXTRA_PASS=1 as a workaround
     make: *** [vmlinux] エラー 1


Kind Regards,
Makoto Harada