link error while compiling localio.c

link error while compiling localio.c

[Janpieter Sollie via Bugspray Bot]

Janpieter Sollie added an attachment on Kernel.org Bugzilla:

Created attachment 306999
kernel .config

tried both GCC and clang:
Clang output:
> ld.lld: error: undefined symbol: nfs_to
> >>> referenced by localio.c:37 (fs/nfsd/localio.c:37)
> >>>               vmlinux.o:(init_nfsd)
> >>> referenced by localio.c:37 (/usr/src/linux/fs/nfsd/localio.c:37)
> >>>               vmlinux.o:(nfsd_localio_ops_init)
> 
> ld.lld: error: undefined symbol: nfs_uuid_invalidate_clients
> >>> referenced by nfsctl.c:2286 (/usr/src/linux/fs/nfsd/nfsctl.c:2286)
> >>>               vmlinux.o:(nfsd_net_pre_exit)
> 
> ld.lld: error: undefined symbol: nfs_uuid_is_local
> >>> referenced by localio.c:116 (/usr/src/linux/fs/nfsd/localio.c:116)
> >>>               vmlinux.o:(localio_proc_uuid_is_local)
GCC output:
ld: fs/nfsd/nfsctl.o: in function `nfsd_net_pre_exit':
nfsctl.c:(.text+0x122): undefined reference to `nfs_uuid_invalidate_clients'
ld: fs/nfsd/localio.o: in function `localio_proc_uuid_is_local':
/usr/src/linux/fs/nfsd/localio.c:116:(.text+0x56): undefined reference to `nfs_uuid_is_local'
ld: fs/nfsd/localio.o: in function `nfsd_localio_ops_init':
/usr/src/linux/fs/nfsd/localio.c:37:(.text+0x2c9): undefined reference to `nfs_to'

Command:
make -j64 or make LLVM=1 -j64

the config file for GCC will be attached, let me know if the clang version is desired as well

As you might guess, not trimming the unused symbols fixes the issue ...

File: config.txt (text/plain)
Size: 130.19 KiB
Link: https://bugzilla.kernel.org/attachment.cgi?id=306999
---
kernel .config

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Re: link error while compiling localio.c

[Janpieter Sollie via Bugspray Bot]

Janpieter Sollie writes via Kernel.org Bugzilla:

sorry, turns out I was wrong (had to do a make clean before):
removing the "trim unused exported symbols" option did NOT fix the issue, it simply masked it, turns out it was hidden somewhere else

View: https://bugzilla.kernel.org/show_bug.cgi?id=219370#c1
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Re: link error while compiling localio.c

[Janpieter Sollie via Bugspray Bot]

Janpieter Sollie writes via Kernel.org Bugzilla:

based on the bisected commit id, I turned off nfs localio option in kernel .config for 6.12-rc2, now it compiles.  Guess that's not surprising

View: https://bugzilla.kernel.org/show_bug.cgi?id=219370#c2
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Re: link error while compiling localio.c

[The Linux kernel's regression tracker (Thorsten Leemhuis) via Bugspray Bot]

The Linux kernel's regression tracker (Thorsten Leemhuis) writes via Kernel.org Bugzilla:

FWIW, another report with similar symptoms can be found here:
https://lore.kernel.org/all/D4OUJRP8YWRM.ATQ7KASTYX5H@mbosch.me/T/#u

View: https://bugzilla.kernel.org/show_bug.cgi?id=219370#c3
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Re: link error while compiling localio.c

[The Linux kernel's regression tracker (Thorsten Leemhuis) via Bugspray Bot]

The Linux kernel's regression tracker (Thorsten Leemhuis) writes via Kernel.org Bugzilla:

Was the problem resolved in between? 

And can I CC you on a lkml mail? This would expose your email address to the public.

View: https://bugzilla.kernel.org/show_bug.cgi?id=219370#c4
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Kernel.org Bugzilla (bugspray 0.1-dev)

Re: link error while compiling localio.c

[Mike Snitzer]

On Thu, Oct 10, 2024 at 07:35:10AM +0000, Janpieter Sollie via Bugspray Bot wrote:
> Janpieter Sollie added an attachment on Kernel.org Bugzilla:
> 
> Created attachment 306999
> kernel .config
> 
> tried both GCC and clang:
> Clang output:
> > ld.lld: error: undefined symbol: nfs_to
> > >>> referenced by localio.c:37 (fs/nfsd/localio.c:37)
> > >>>               vmlinux.o:(init_nfsd)
> > >>> referenced by localio.c:37 (/usr/src/linux/fs/nfsd/localio.c:37)
> > >>>               vmlinux.o:(nfsd_localio_ops_init)
> > 
> > ld.lld: error: undefined symbol: nfs_uuid_invalidate_clients
> > >>> referenced by nfsctl.c:2286 (/usr/src/linux/fs/nfsd/nfsctl.c:2286)
> > >>>               vmlinux.o:(nfsd_net_pre_exit)
> > 
> > ld.lld: error: undefined symbol: nfs_uuid_is_local
> > >>> referenced by localio.c:116 (/usr/src/linux/fs/nfsd/localio.c:116)
> > >>>               vmlinux.o:(localio_proc_uuid_is_local)
> GCC output:
> ld: fs/nfsd/nfsctl.o: in function `nfsd_net_pre_exit':
> nfsctl.c:(.text+0x122): undefined reference to `nfs_uuid_invalidate_clients'
> ld: fs/nfsd/localio.o: in function `localio_proc_uuid_is_local':
> /usr/src/linux/fs/nfsd/localio.c:116:(.text+0x56): undefined reference to `nfs_uuid_is_local'
> ld: fs/nfsd/localio.o: in function `nfsd_localio_ops_init':
> /usr/src/linux/fs/nfsd/localio.c:37:(.text+0x2c9): undefined reference to `nfs_to'
> 
> Command:
> make -j64 or make LLVM=1 -j64
> 
> the config file for GCC will be attached, let me know if the clang version is desired as well
> 
> As you might guess, not trimming the unused symbols fixes the issue ...
> 
> File: config.txt (text/plain)
> Size: 130.19 KiB
> Link: https://bugzilla.kernel.org/attachment.cgi?id=306999
> ---
> kernel .config
> 
> You can reply to this message to join the discussion.
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> Kernel.org Bugzilla (bugspray 0.1-dev)

I will report as much via bugzilla.kernel.org but for the benefit of those cc'd:

This was fixed via v6.12-rc3 commit 009b15b57485 ("nfs_common: fix
Kconfig for NFS_COMMON_LOCALIO_SUPPORT")

In the provided kernel config:

CONFIG_NFS_FS=m
CONFIG_NFSD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_NFS_COMMON_LOCALIO_SUPPORT=m
CONFIG_NFS_LOCALIO=y

My Kconfig fix will result in CONFIG_NFS_LOCALIO=m so that the symbols
are available to the nfs.ko kernel module.

But if you have any further issues, certainly let me know.

Thanks,
Mike

Re: link error while compiling localio.c

[Mike Snitzer via Bugspray Bot]

Mike Snitzer writes via Kernel.org Bugzilla:

This was fixed via v6.12-rc3 commit 009b15b57485 ("nfs_common: fix
Kconfig for NFS_COMMON_LOCALIO_SUPPORT")

In the provided kernel config:

CONFIG_NFS_FS=m
CONFIG_NFSD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_NFS_COMMON_LOCALIO_SUPPORT=m
CONFIG_NFS_LOCALIO=y

My Kconfig fix will result in CONFIG_NFS_LOCALIO=m so that the symbols
are available to the nfs.ko kernel module.

But if you have any further issues, certainly let me know.

View: https://bugzilla.kernel.org/show_bug.cgi?id=219370#c5
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Kernel.org Bugzilla (bugspray 0.1-dev)

Re: link error while compiling localio.c

[Mike Snitzer via Bugspray Bot]

Mike Snitzer writes via Kernel.org Bugzilla:

(In reply to Mike Snitzer from comment #5)
> This was fixed via v6.12-rc3 commit 009b15b57485 ("nfs_common: fix
> Kconfig for NFS_COMMON_LOCALIO_SUPPORT")
> 
> In the provided kernel config:
> 
> CONFIG_NFS_FS=m
> CONFIG_NFSD_V4=y
> CONFIG_NFS_COMMON=y
> CONFIG_NFS_COMMON_LOCALIO_SUPPORT=m
> CONFIG_NFS_LOCALIO=y
> 
> My Kconfig fix will result in CONFIG_NFS_LOCALIO=m so that the symbols
> are available to the nfs.ko kernel module.

Sorry, to be clear, the fix results in:

CONFIG_NFS_FS=m
CONFIG_NFSD=y
CONFIG_NFSD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_NFS_COMMON_LOCALIO_SUPPORT=y
CONFIG_NFS_LOCALIO=y

View: https://bugzilla.kernel.org/show_bug.cgi?id=219370#c6
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