[akpm-mm:mm-unstable 55/141] ERROR: modpost: "memcpy" [fs/nfs/nfs.ko] undefined!

[akpm-mm:mm-unstable 55/141] ERROR: modpost: "memcpy" [fs/nfs/nfs.ko] undefined!

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
head:   af520f81c51001f7ccdf0579fc73df282b26292d
commit: fa5bfe65d50ae7006d711f490bba3cb4d437bcad [55/141] fix missing vmalloc.h includes
config: alpha-defconfig (https://download.01.org/0day-ci/archive/20240323/202403230731.fved39RH-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240323/202403230731.fved39RH-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202403230731.fved39RH-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

WARNING: modpost: missing MODULE_DESCRIPTION() in vmlinux.o
WARNING: modpost: "saved_config" [vmlinux] is COMMON symbol
WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs_common/grace.o
WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs/nfs.o
WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs/nfsv2.o
WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs/nfsv3.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/block/loop.o
ERROR: modpost: "memcpy" [fs/reiserfs/reiserfs.ko] undefined!
>> ERROR: modpost: "memcpy" [fs/nfs/nfs.ko] undefined!
>> ERROR: modpost: "memcpy" [fs/nfs/nfsv3.ko] undefined!
>> ERROR: modpost: "memcpy" [fs/nfsd/nfsd.ko] undefined!
>> ERROR: modpost: "memcpy" [fs/lockd/lockd.ko] undefined!
>> ERROR: modpost: "memcpy" [crypto/seqiv.ko] undefined!
>> ERROR: modpost: "memcpy" [crypto/crypto_null.ko] undefined!
>> ERROR: modpost: "memcpy" [crypto/sha512_generic.ko] undefined!
>> ERROR: modpost: "memcpy" [crypto/sha3_generic.ko] undefined!
>> ERROR: modpost: "memcpy" [crypto/cbc.ko] undefined!
WARNING: modpost: suppressed 16 unresolved symbol warnings because there were too many)

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [akpm-mm:mm-unstable 55/141] ERROR: modpost: "memcpy" [fs/nfs/nfs.ko] undefined!

[Kent Overstreet]

On Sat, Mar 23, 2024 at 07:48:03AM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
> head:   af520f81c51001f7ccdf0579fc73df282b26292d
> commit: fa5bfe65d50ae7006d711f490bba3cb4d437bcad [55/141] fix missing vmalloc.h includes
> config: alpha-defconfig (https://download.01.org/0day-ci/archive/20240323/202403230731.fved39RH-lkp@intel.com/config)
> compiler: alpha-linux-gcc (GCC) 13.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240323/202403230731.fved39RH-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202403230731.fved39RH-lkp@intel.com/
> 
> All errors (new ones prefixed by >>, old ones prefixed by <<):
> 
> WARNING: modpost: missing MODULE_DESCRIPTION() in vmlinux.o
> WARNING: modpost: "saved_config" [vmlinux] is COMMON symbol
> WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs_common/grace.o
> WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs/nfs.o
> WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs/nfsv2.o
> WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs/nfsv3.o
> WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/block/loop.o
> ERROR: modpost: "memcpy" [fs/reiserfs/reiserfs.ko] undefined!
> >> ERROR: modpost: "memcpy" [fs/nfs/nfs.ko] undefined!
> >> ERROR: modpost: "memcpy" [fs/nfs/nfsv3.ko] undefined!
> >> ERROR: modpost: "memcpy" [fs/nfsd/nfsd.ko] undefined!
> >> ERROR: modpost: "memcpy" [fs/lockd/lockd.ko] undefined!
> >> ERROR: modpost: "memcpy" [crypto/seqiv.ko] undefined!
> >> ERROR: modpost: "memcpy" [crypto/crypto_null.ko] undefined!
> >> ERROR: modpost: "memcpy" [crypto/sha512_generic.ko] undefined!
> >> ERROR: modpost: "memcpy" [crypto/sha3_generic.ko] undefined!
> >> ERROR: modpost: "memcpy" [crypto/cbc.ko] undefined!
> WARNING: modpost: suppressed 16 unresolved symbol warnings because there were too many)

We were supposed to be getting 0day testing for our stuff, and we were
at one point, clearly that slipped - who would be interesting in helping
build a dashboard for 0day so that we can make sure this isn't happening
in the future?

I want something so that a maintainer can see at a glance that code's
been tested before merging. I've got a dashboard for my own CI that we
can adapt.

Also, I'm build testing mm-unstable on alpha now and I'm seeing more
build errors that I don't think we introduced. I'll see what I can
fix...

Re: [akpm-mm:mm-unstable 55/141] ERROR: modpost: "memcpy" [fs/nfs/nfs.ko] undefined!

[Suren Baghdasaryan]

On Fri, Mar 22, 2024 at 4:48 PM kernel test robot <lkp@intel.com> wrote:
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
> head:   af520f81c51001f7ccdf0579fc73df282b26292d
> commit: fa5bfe65d50ae7006d711f490bba3cb4d437bcad [55/141] fix missing vmalloc.h includes
> config: alpha-defconfig (https://download.01.org/0day-ci/archive/20240323/202403230731.fved39RH-lkp@intel.com/config)
> compiler: alpha-linux-gcc (GCC) 13.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240323/202403230731.fved39RH-lkp@intel.com/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202403230731.fved39RH-lkp@intel.com/
>
> All errors (new ones prefixed by >>, old ones prefixed by <<):
>
> WARNING: modpost: missing MODULE_DESCRIPTION() in vmlinux.o
> WARNING: modpost: "saved_config" [vmlinux] is COMMON symbol
> WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs_common/grace.o
> WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs/nfs.o
> WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs/nfsv2.o
> WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs/nfsv3.o
> WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/block/loop.o
> ERROR: modpost: "memcpy" [fs/reiserfs/reiserfs.ko] undefined!
> >> ERROR: modpost: "memcpy" [fs/nfs/nfs.ko] undefined!
> >> ERROR: modpost: "memcpy" [fs/nfs/nfsv3.ko] undefined!
> >> ERROR: modpost: "memcpy" [fs/nfsd/nfsd.ko] undefined!
> >> ERROR: modpost: "memcpy" [fs/lockd/lockd.ko] undefined!
> >> ERROR: modpost: "memcpy" [crypto/seqiv.ko] undefined!
> >> ERROR: modpost: "memcpy" [crypto/crypto_null.ko] undefined!
> >> ERROR: modpost: "memcpy" [crypto/sha512_generic.ko] undefined!
> >> ERROR: modpost: "memcpy" [crypto/sha3_generic.ko] undefined!
> >> ERROR: modpost: "memcpy" [crypto/cbc.ko] undefined!
> WARNING: modpost: suppressed 16 unresolved symbol warnings because there were too many)

This and the error reported at
https://lore.kernel.org/all/202403252127.967BczRr-lkp@intel.com/ are
the same. I have a fix but I'm still trying to figure out why this
issue is happening (see
https://lore.kernel.org/all/CAJuCfpH6N_p-w2DxJ530txgTha6dTxQb3ANtkU-6h9pCpstTOA@mail.gmail.com/).

>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki