Re: [uml-devel] UML build failure on 4.7

[Ritesh Raj Sarraf <rrs@researchut.com>]

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Disabling drivers/nvdimm (seen only on x86_64 architecture) solved the problem.

On Mon, 2016-09-05 at 18:55 +0530, Ritesh Raj Sarraf wrote:
> Hi,
> 
> I'm working on refreshing UML to version 4.7 in Debian.
> 
> The linux source tarball we use is from Debian, which is mostly the stock
> kernel.
> 
> The build failure I've run into is:
> 
>   CC [M]  lib/ts_fsm.o
>   CC [M]  lib/lru_cache.o
>   CC [M]  lib/cordic.o
>   CC [M]  lib/asn1_decoder.o
>   GEN     lib/oid_registry_data.c
>   CC [M]  lib/oid_registry.o
>   LD      virt/lib/built-in.o
>   LD      virt/built-in.o
>   LINK    vmlinux
>   LD      vmlinux.o
>   MODPOST vmlinux.o
>   GEN     .version
>   CHK     include/generated/compile.h
>   UPD     include/generated/compile.h
>   CC      init/version.o
>   LD      init/built-in.o
>   KSYM    .tmp_kallsyms1.o
>   KSYM    .tmp_kallsyms2.o
>   LD      vmlinux
>   SYSMAP  System.map
>   LINK linux
>   Building modules, stage 2.
>   MODPOST 906 modules
> ERROR: "devm_memunmap" [drivers/nvdimm/libnvdimm.ko] undefined!
> ERROR: "devm_memremap" [drivers/nvdimm/libnvdimm.ko] undefined!
> scripts/Makefile.modpost:91: recipe for target '__modpost' failed
> make[2]: *** [__modpost] Error 1
> Makefile:1186: recipe for target 'modules' failed
> make[1]: *** [modules] Error 2
> make[1]: Leaving directory '/build/user-mode-linux-4.7-1um/linux-source-4.7'
> debian/rules:73: recipe for target 'build-stamp' failed
> make: *** [build-stamp] Error 2
> dpkg-buildpackage: error: debian/rules build gave error exit status 2
> I: copying local configuration
> W: No local /etc/resolv.conf to copy, relying on /var/tmp/Debian-
> Build/Build//9419/etc/resolv.conf to be correct
> E: Failed autobuilding of package
> W: no hooks of type C found -- ignoring
> I: unmounting /var/tmp/lxc/ccache/ccache filesystem
> I: unmounting /var/cache/apt/archives/ filesystem
> I: unmounting dev/pts filesystem
> I: unmounting run/shm filesystem
> I: unmounting proc filesystem
> I: unmounting sys filesystem
> I: cleaning the build env 
> I: removing directory /var/tmp/Debian-Build/Build//9419 and its subdirectories
> 
> 
> The same .config builds fine for 4.6. Have others been able to build a 4.7 um
> kernel ?
> 
> 
- -- 
Ritesh Raj Sarraf
RESEARCHUT - http://www.researchut.com
"Necessity is the mother of invention."
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