Re: ACPI modpost failure in 2.6.23-rc1-git2

From: Andy Whitcroft
Date: Mon Aug 06 2007 - 11:59:20 EST


Michal Piotrowski wrote:
> Hi Andy,
>
> On 06/08/07, Andy Whitcroft <apw@xxxxxxxxxxxx> wrote:
>> Between 2.6.23-rc1-git1 and 2.6.23-rc1-git2 we started getting the
>> following fatal error during modpost on an x86_64 machine:
>>
>> FATAL: drivers/acpi/video: sizeof(struct acpi_device_id)=20 is not a
>> modulo of the size of section __mod_acpi_device_table=48.
>> Fix definition of struct acpi_device_id in mod_devicetable.h
>> make[1]: *** [__modpost] Error 1
>>
>> This check seems to have been added as part of the following commit:
>>
>> commit 29b71a1ca74491fab9fed09e9d835d840d042690
>> Author: Thomas Renninger <trenn@xxxxxxx>
>> Date: Mon Jul 23 14:43:51 2007 +0200
>>
>> ACPI: autoload modules - Create ACPI alias interface
>>
>> Compiler version:
>> Reading specs from /usr/lib/gcc/i486-linux/3.4.4/specs
>> Configured with: ../src/configure -v
>> --enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr
>> --libexecdir=/usr/lib --with-gxx-include-dir=/usr/include/c++/3.4
>> --enable-shared --with-system-zlib --enable-nls
>> --without-included-gettext --program-suffix=-3.4 --enable-__cxa_atexit
>> --enable-libstdcxx-allocator=mt --enable-clocale=gnu
>> --enable-libstdcxx-debug --enable-java-gc=boehm --enable-java-awt=gtk
>> --disable-werror i486-linux
>> Thread model: posix
>> gcc version 3.4.4 20050314 (prerelease) (Debian 3.4.3-13sarge1)
>>
>> We are compiling a 64bit kernel on a machine with a pretty old
>> userspace which is 32bit.
>>
>> Let me know if you need more info.
>>
>> -apw
>
> similar to
>
> Subject : modpost bug breaks ia64 cross compilation
> References : http://lkml.org/lkml/2007/7/27/30
> http://lkml.org/lkml/2007/7/27/418
> Last known good : ?
> Submitter : Jan Dittmer <jdi@xxxxxxx>
> Caused-By : Thomas Renninger <trenn@xxxxxxx>
> commit 29b71a1ca74491fab9fed09e9d835d840d042690
> Handled-By : ?
> Patch : http://lkml.org/lkml/2007/8/2/211
> Status : patch was suggested
>
> Please try this patch http://lkml.org/lkml/2007/8/2/211

Will do. That is vile though.

It feels like we should be generating this information in the kernel
build and extracting it from the built kernel.

-apw
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