[uml-devel] UML build failure on 4.7

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

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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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