Bug 8050

Summary:	2.6.21-rc1 build errors on x86/ARM with built-in NFS / modular IPV6
Product:	File System	Reporter:	Michael-Luke Jones (mlj28)
Component:	NFS	Assignee:	Neil Brown (neilb)
Status:	CLOSED PATCH_ALREADY_AVAILABLE
Severity:	high	CC:	bug-report, hanno
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6.21-rc1	Subsystem:
Regression:	---	Bisected commit-id:
Attachments:	Config leading to compile failure x86 config leading to second compile error

Description Michael-Luke Jones 2007-02-21 10:56:19 UTC

Most recent kernel where this bug did *NOT* occur: 2.6.20.1
Distribution: NSLU2-Linux
Software Environment: GCC 4.1.1 ARM Cross Compiler
Problem Description:
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
net/built-in.o: In function `svc_udp_recvfrom':
sysctl_net.c:(.text+0x79fb4): undefined reference to `__ipv6_addr_type'
make[1]: *** [.tmp_vmlinux1] Error 1

Steps to reproduce:
Compile kernel with attached defconfig

Comment 1 Michael-Luke Jones 2007-02-21 10:58:34 UTC

Created attachment 10485 [details]
Config leading to compile failure

Comment 2 Michael-Luke Jones 2007-02-21 10:59:10 UTC

Also see http://lkml.org/lkml/2007/2/21/76 (NB: I meant 2.6.21-rc1 not 2.6.20-rc1)

Comment 3 Michael-Luke Jones 2007-02-22 09:10:18 UTC

Apparently 'svc_udp_recvfrom' is an NFS function, so it looks like an NFS rather than an IPV6 issue.

Comment 4 Michael-Luke Jones 2007-02-22 09:22:45 UTC

Similar (but not identical) error on x86 with new defconfig (attached above)

New Error:
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
net/built-in.o: In function `svc_udp_get_sender_address':
svcsock.c:(.text+0x79754): undefined reference to `__ipv6_addr_type'
make: *** [.tmp_vmlinux1] Error 1

Comment 5 Michael-Luke Jones 2007-02-22 09:23:42 UTC

Created attachment 10495 [details]
x86 config leading to second compile error

NFS Built In / IPV6 Modular

Comment 6 Trond Myklebust 2007-02-22 12:18:47 UTC

This is a server issue, so I'm reassigning to Neil. I do believe I saw a report
for this problem fly by on lkml yesterday, though, so I assume that a patch
is forthcoming.

Comment 7 Michael-Luke Jones 2007-02-25 15:10:14 UTC

Problem appears to be fixed upstream in net-2.6 tree.

For reference, here are the patches against 2.6.21-rc1 that fixed the MODPOST problem for us:
http://trac.nslu2-linux.org/kernel/changeset/762

Thanks for help,
Michael-Luke Jones

Comment 8 Adrian Bunk 2007-02-25 16:44:08 UTC

*** Bug 8082 has been marked as a duplicate of this bug. ***