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Date: Wed, 28 Mar 2012 10:13:31 -0700
From: Randy Dunlap <rdunlap@xenotime.net>
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To: Borislav Petkov <bp@alien8.de>, Trevor Turner <turn3r.tr3v0r@gmail.com>,
        linux-kernel@vger.kernel.org
Subject: Re: K7/Athlon Optimization Causes Build Fail on Kernel 3.3 i686
References: <CANYHJ6jjuO7yV_kbPsnJ6X+KXrsz2PRPPXHN4Rkr-vgoSG-E4A@mail.gmail.com> <20120328111957.GA6765@x1.osrc.amd.com> <CANYHJ6j6cxz47TGk8kdU58eau17Fi1K=fH2icmd=v19VjNggKw@mail.gmail.com> <20120328171059.GA7919@x1.osrc.amd.com>
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On 03/28/2012 10:10 AM, Borislav Petkov wrote:

> On Wed, Mar 28, 2012 at 09:33:35AM -0700, Trevor Turner wrote:
>> On Wed, Mar 28, 2012 at 04:19, Borislav Petkov <bp@alien8.de> wrote:
>>> Right, can you try this with the upstream kernel, i.e.
>>>
>>> 1. get one from kernel.org
>>> 2. copy the .config into the directory where you've unpacked the sources
>>> 3. do 'make oldconfig' and then 'make menuconfig' and go and select Athlon build
>>> 4. do 'make -j3 > w.log 2>&1' so that you can catch the build output into w.log
>>> which you can send later
>>>
>>> Also, which build tools are you using, simply do
>>>
>>> ./scripts/ver_linux
>>>
>>> in the kernel source directory, catch the output and send it on pls.
>>
>> Here's the output of ver_linux:
>> Linux Dark-Server 3.3.0-1-ck #1 SMP Mon Mar 26 07:53:51 PDT 2012 i686
>> AMD Athlon(TM) MP 2000+ AuthenticAMD GNU/Linux
>>
> 
> <snip a _lot_ of output>
> 
>>   LD      drivers/usb/built-in.o
>>   LD      drivers/built-in.o
>>   LD      vmlinux.o
>>   MODPOST vmlinux.o
>> WARNING: modpost: Found 1 section mismatch(es).
>> To see full details build your kernel with:
>> 'make CONFIG_DEBUG_SECTION_MISMATCH=y'
>>   GEN     .version
>>   CHK     include/generated/compile.h
>>   UPD     include/generated/compile.h
>>   CC      init/version.o
>>   LD      init/built-in.o
>>   LD      .tmp_vmlinux1
>>   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
>>   Building modules, stage 2.
>>   MODPOST 518 modules
>>   CC      arch/x86/boot/a20.o
>>   AS      arch/x86/boot/bioscall.o
>>   CC      arch/x86/boot/cmdline.o
>>   AS      arch/x86/boot/copy.o
>>   HOSTCC  arch/x86/boot/mkcpustr
>>   CC      arch/x86/boot/cpucheck.o
>>   CC      arch/x86/boot/early_serial_console.o
>>   CC      arch/x86/boot/edd.o
>>   VOFFSET arch/x86/boot/voffset.h
>>   LDS     arch/x86/boot/compressed/vmlinux.lds
>>   AS      arch/x86/boot/compressed/head_32.o
>>   CC      arch/x86/boot/compressed/misc.o
>>   CC      arch/x86/boot/main.o
>>   CC      arch/x86/boot/mca.o
>>   CC      arch/x86/boot/memory.o
>>   CC      arch/x86/boot/compressed/string.o
>>   CC      arch/x86/boot/compressed/cmdline.o
>>   CC      arch/x86/boot/compressed/early_serial_console.o
>>   OBJCOPY arch/x86/boot/compressed/vmlinux.bin
>>   HOSTCC  arch/x86/boot/compressed/relocs
>>   HOSTCC  arch/x86/boot/compressed/mkpiggy
>> arch/x86/boot/compressed/relocs.c: In function ‘print_absolute_symbols’:
>> arch/x86/boot/compressed/relocs.c:405:14: warning: variable
>> ‘sh_symtab’ set but not used [-Wunused-but-set-variable]
>>   CC      arch/x86/boot/compressed/eboot.o
>>   AS      arch/x86/boot/compressed/efi_stub_32.o
>>   RELOCS  arch/x86/boot/compressed/vmlinux.relocs
>>   GZIP    arch/x86/boot/compressed/vmlinux.bin.gz
>>   CC      crypto/arc4.mod.o
>>   CC      arch/x86/boot/pm.o
>>   AS      arch/x86/boot/pmjump.o
>>   CC      crypto/crc32c.mod.o
>>   CC      arch/x86/boot/printf.o
>>   CC      crypto/deflate.mod.o
>>   CC      arch/x86/boot/regs.o
>>   CC      arch/x86/boot/string.o
>>   CC      arch/x86/boot/tty.o
>>   CC      crypto/des_generic.mod.o
>>   MKPIGGY arch/x86/boot/compressed/piggy.S
>>   AS      arch/x86/boot/compressed/piggy.o
>>   CC      arch/x86/boot/video.o
>>   CC      crypto/ecb.mod.o
>> arch/x86/boot/compressed/eboot.o: In function `efi_main':
>> eboot.c:(.text+0x1530): undefined reference to `_mmx_memcpy'
>> eboot.c:(.text+0x17d0): undefined reference to `_mmx_memcpy'
>> make[2]: *** [arch/x86/boot/compressed/vmlinux] Error 1
>> make[1]: *** [arch/x86/boot/compressed/vmlinux] Error 2
>> make[1]: *** Waiting for unfinished jobs....
> 
> This is the problem and I was able to reproduce it on a similar box
> here:

Yes, that's the build error that I got also.


> processor       : 0
> vendor_id       : AuthenticAMD
> cpu family      : 6
> model           : 6
> model name      : AMD Athlon(tm) XP 1800+
> stepping        : 2
> cpu MHz         : 1533.265
> cache size      : 256 KB
> 
> It should be fixed by disabling
> 
> CONFIG_EFI=y
> CONFIG_EFI_STUB=y
> 
> in your config. K7 and EFI are from different epochs anyway and cannot
> obviously be enabled both on the same system with the current Kconfig
> for EFI.



but the Kconfig files shouldn't allow such a failing .config to be
created, or the Makefiles are inadequate, or <mumble something>....

:(

-- 
~Randy