2011-04-01 15:55:55

by Sedat Dilek

[permalink] [raw]
Subject: Re: linux-next: Tree for April 1 [BROKEN ubifs when CONFIG_DEBUG_SECTION_MISMATCH=y]

On Fri, Apr 1, 2011 at 5:25 AM, Stephen Rothwell <[email protected]> wrote:
> Hi all,
>
> Changes since 20110331:
>
> Dropped tree: xen
>
> The sparc-current tree lost its build failure.
>
> The gfs2 tree gained a conflict against Linus' tree.
>
> The tip tree gained a build failure (due to a change in the bjdooks-i2c
> tree) for which I applied a patch.
>

With CONFIG_DEBUG_SECTION_MISMATCH=y set, I see in my build.log:
...
MODPOST 2742 modules
...
ERROR: "empty_aops" [fs/ubifs/ubifs.ko] undefined!
make[5]: *** [__modpost] Error 1
make[4]: *** [modules] Error 2
make[3]: *** [sub-make] Error 2
make[2]: *** [all] Error 2
make[2]: Leaving directory
`/home/sd/src/linux-2.6/linux-2.6.39-rc1/debian/build/build_i386_none_686-iniza'

- Sedat -


2011-04-01 16:06:39

by Stephen Rothwell

[permalink] [raw]
Subject: Re: linux-next: Tree for April 1 [BROKEN ubifs when CONFIG_DEBUG_SECTION_MISMATCH=y]

Cc'ing Artem,

On Fri, 1 Apr 2011 17:55:52 +0200 Sedat Dilek <[email protected]> wrote:
>
> With CONFIG_DEBUG_SECTION_MISMATCH=y set, I see in my build.log:
> ...
> MODPOST 2742 modules
> ...
> ERROR: "empty_aops" [fs/ubifs/ubifs.ko] undefined!
> make[5]: *** [__modpost] Error 1
> make[4]: *** [modules] Error 2
> make[3]: *** [sub-make] Error 2
> make[2]: *** [all] Error 2
> make[2]: Leaving directory
> `/home/sd/src/linux-2.6/linux-2.6.39-rc1/debian/build/build_i386_none_686-iniza'
>
> - Sedat -
>


--
Cheers,
Stephen Rothwell [email protected]
http://www.canb.auug.org.au/~sfr/


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2011-04-01 16:10:41

by Sedat Dilek

[permalink] [raw]
Subject: Re: linux-next: Tree for April 1 [BROKEN ubifs when CONFIG_DEBUG_SECTION_MISMATCH=y]

On Fri, Apr 1, 2011 at 6:06 PM, Stephen Rothwell <[email protected]> wrote:
> Cc'ing Artem,
>
> On Fri, 1 Apr 2011 17:55:52 +0200 Sedat Dilek <[email protected]> wrote:
>>
>> With CONFIG_DEBUG_SECTION_MISMATCH=y set, I see in my build.log:
>> ...
>> MODPOST 2742 modules
>> ...
>> ERROR: "empty_aops" [fs/ubifs/ubifs.ko] undefined!
>> make[5]: *** [__modpost] Error 1
>> make[4]: *** [modules] Error 2
>> make[3]: *** [sub-make] Error 2
>> make[2]: *** [all] Error 2
>> make[2]: Leaving directory
>> `/home/sd/src/linux-2.6/linux-2.6.39-rc1/debian/build/build_i386_none_686-iniza'
>>
>> - Sedat -
>>
>
>
> --
> Cheers,
> Stephen Rothwell                    [email protected]
> http://www.canb.auug.org.au/~sfr/
>

Speculative patch (untested).

- Sedat -

$ diff -uprN fs/ubifs/xattr.c.orig fs/ubifs/xattr.c
--- fs/ubifs/xattr.c.orig 2011-04-01 15:56:08.471082117 +0200
+++ fs/ubifs/xattr.c 2011-04-01 18:08:27.355276827 +0200
@@ -81,6 +81,7 @@ enum {

static const struct inode_operations none_inode_operations;
static const struct file_operations none_file_operations;
+static const struct address_space_operations empty_aops;

/**
* create_xattr - create an extended attribute.

2011-04-01 17:05:04

by Artem Bityutskiy

[permalink] [raw]
Subject: Re: linux-next: Tree for April 1 [BROKEN ubifs when CONFIG_DEBUG_SECTION_MISMATCH=y]

On Fri, 2011-04-01 at 18:10 +0200, Sedat Dilek wrote:
> On Fri, Apr 1, 2011 at 6:06 PM, Stephen Rothwell <[email protected]> wrote:
> > Cc'ing Artem,
> >
> > On Fri, 1 Apr 2011 17:55:52 +0200 Sedat Dilek <[email protected]> wrote:
> >>
> >> With CONFIG_DEBUG_SECTION_MISMATCH=y set, I see in my build.log:
> >> ...
> >> MODPOST 2742 modules
> >> ...
> >> ERROR: "empty_aops" [fs/ubifs/ubifs.ko] undefined!
> >> make[5]: *** [__modpost] Error 1
> >> make[4]: *** [modules] Error 2
> >> make[3]: *** [sub-make] Error 2
> >> make[2]: *** [all] Error 2
> >> make[2]: Leaving directory
> >> `/home/sd/src/linux-2.6/linux-2.6.39-rc1/debian/build/build_i386_none_686-iniza'
> >>
> >> - Sedat -
> >>
> >
> >
> > --
> > Cheers,
> > Stephen Rothwell [email protected]
> > http://www.canb.auug.org.au/~sfr/
> >
>
> Speculative patch (untested).
>
> - Sedat -
>
> $ diff -uprN fs/ubifs/xattr.c.orig fs/ubifs/xattr.c
> --- fs/ubifs/xattr.c.orig 2011-04-01 15:56:08.471082117 +0200
> +++ fs/ubifs/xattr.c 2011-04-01 18:08:27.355276827 +0200
> @@ -81,6 +81,7 @@ enum {
>
> static const struct inode_operations none_inode_operations;
> static const struct file_operations none_file_operations;
> +static const struct address_space_operations empty_aops;
>
> /**
> * create_xattr - create an extended attribute.

ubifs doess not have 'empty_aops' symbol and does not use such symbol. I
do not understand how you got that build issue, but this must be
something to do with your local setup.

Also:

[dedekind@eru linux-next (master)]$ grep -r 'empty_aops' *
fs/nilfs2/page.c: static const struct address_space_operations empty_aops;
fs/nilfs2/page.c: mapping->a_ops = &empty_aops;
fs/inode.c: static const struct address_space_operations empty_aops;
fs/inode.c: mapping->a_ops = &empty_aops;

in the current linux-next.

--
Best Regards,
Artem Bityutskiy (Артём Битюцкий)