debian 10 - kernel 4.18.0-1-amd64 - dkms does not build

[suempu]

Hello

After the latest update to kernel 4.18.0-1-amd64 veeamsnap module was not able to build. It worked on kernel: 4.17.0-3-amd64.

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root@amos:~# modprobe veeamsnap
modprobe: FATAL: Module veeamsnap not found in directory /lib/modules/4.18.0-1-amd64

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Loading new veeamsnap-2.0.1.665 DKMS files...
Building for 4.18.0-1-amd64
Building initial module for 4.18.0-1-amd64
Error! Bad return status for module build on kernel: 4.18.0-1-amd64 (x86_64)
Consult /var/lib/dkms/veeamsnap/2.0.1.665/build/make.log for more information.
dpkg: error processing package veeamsnap (--configure):
 installed veeamsnap package post-installation script subprocess returned error exit status 10
dpkg: dependency problems prevent configuration of veeam:
 veeam depends on veeamsnap (= 2.0.1.665); however:
  Package veeamsnap is not configured yet.

dpkg: error processing package veeam (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 veeamsnap
 veeam

/var/lib/dkms/veeamsnap/2.0.1.665/build/make.log:

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DKMS make.log for veeamsnap-2.0.1.665 for kernel 4.18.0-1-amd64 (x86_64)
Thu Sep 20 13:38:49 CEST 2018
make: Entering directory '/usr/src/linux-headers-4.18.0-1-amd64'
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/log.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/mem_alloc.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/sparse_array_1lv.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/sparse_bitmap.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/container.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/container_spinlocking.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/queue_spinlocking.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/bitmap_sync.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/page_array.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/rangelist.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/rangevector.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.o
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_direct.o
In file included from /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.c:4:0:
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h: In function ‘blk_bioset_create’:
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h:121:9: error: implicit declaration of function ‘bioset_create’; did you mean ‘blk_bioset_create’? [-Werror=implicit-function-declaration]
  return bioset_create(64, front_pad, BIOSET_NEED_BVECS | BIOSET_NEED_RESCUER);
         ^~~~~~~~~~~~~
         blk_bioset_create
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h:121:9: warning: return makes pointer from integer without a cast [-Wint-conversion]
  return bioset_create(64, front_pad, BIOSET_NEED_BVECS | BIOSET_NEED_RESCUER);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_redirect.o
cc1: some warnings being treated as errors
  CC [M]  /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_deferred.o
make[3]: *** [/usr/src/linux-headers-4.18.0-1-common/scripts/Makefile.build:323: /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.o] Error 1
make[3]: *** Waiting for unfinished jobs....
In file included from /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_deferred.c:3:0:
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h: In function ‘blk_bioset_create’:
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h:121:9: error: implicit declaration of function ‘bioset_create’; did you mean ‘blk_bioset_create’? [-Werror=implicit-function-declaration]
  return bioset_create(64, front_pad, BIOSET_NEED_BVECS | BIOSET_NEED_RESCUER);
         ^~~~~~~~~~~~~
         blk_bioset_create
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h:121:9: warning: return makes pointer from integer without a cast [-Wint-conversion]
  return bioset_create(64, front_pad, BIOSET_NEED_BVECS | BIOSET_NEED_RESCUER);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_direct.h:2:0,
                 from /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_direct.c:2:
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h: In function ‘blk_bioset_create’:
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h:121:9: error: implicit declaration of function ‘bioset_create’; did you mean ‘blk_bioset_create’? [-Werror=implicit-function-declaration]
  return bioset_create(64, front_pad, BIOSET_NEED_BVECS | BIOSET_NEED_RESCUER);
         ^~~~~~~~~~~~~
         blk_bioset_create
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h:121:9: warning: return makes pointer from integer without a cast [-Wint-conversion]
  return bioset_create(64, front_pad, BIOSET_NEED_BVECS | BIOSET_NEED_RESCUER);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_deferred.c: In function ‘blk_deferred_bioset_free’:
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_deferred.c:177:3: error: implicit declaration of function ‘bioset_free’; did you mean ‘bvec_free’? [-Werror=implicit-function-declaration]
   bioset_free( BlkDeferredBioset );
   ^~~~~~~~~~~
   bvec_free
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_direct.c: In function ‘blk_direct_bioset_free’:
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_direct.c:26:3: error: implicit declaration of function ‘bioset_free’; did you mean ‘bvec_free’? [-Werror=implicit-function-declaration]
   bioset_free( BlkDirectBioset );
   ^~~~~~~~~~~
   bvec_free
In file included from /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_redirect.c:2:0:
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h: In function ‘blk_bioset_create’:
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h:121:9: error: implicit declaration of function ‘bioset_create’; did you mean ‘blk_bioset_create’? [-Werror=implicit-function-declaration]
  return bioset_create(64, front_pad, BIOSET_NEED_BVECS | BIOSET_NEED_RESCUER);
         ^~~~~~~~~~~~~
         blk_bioset_create
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_util.h:121:9: warning: return makes pointer from integer without a cast [-Wint-conversion]
  return bioset_create(64, front_pad, BIOSET_NEED_BVECS | BIOSET_NEED_RESCUER);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_redirect.c: In function ‘blk_redirect_bioset_free’:
/var/lib/dkms/veeamsnap/2.0.1.665/build/blk_redirect.c:23:3: error: implicit declaration of function ‘bioset_free’; did you mean ‘bvec_free’? [-Werror=implicit-function-declaration]
   bioset_free( BlkRedirectBioset );
   ^~~~~~~~~~~
   bvec_free
cc1: some warnings being treated as errors
make[3]: *** [/usr/src/linux-headers-4.18.0-1-common/scripts/Makefile.build:323: /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_direct.o] Error 1
cc1: some warnings being treated as errors
make[3]: *** [/usr/src/linux-headers-4.18.0-1-common/scripts/Makefile.build:323: /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_deferred.o] Error 1
cc1: some warnings being treated as errors
make[3]: *** [/usr/src/linux-headers-4.18.0-1-common/scripts/Makefile.build:323: /var/lib/dkms/veeamsnap/2.0.1.665/build/blk_redirect.o] Error 1
make[2]: *** [/usr/src/linux-headers-4.18.0-1-common/Makefile:1518: _module_/var/lib/dkms/veeamsnap/2.0.1.665/build] Error 2
make[1]: *** [Makefile:146: sub-make] Error 2
make: *** [Makefile:8: all] Error 2
make: Leaving directory '/usr/src/linux-headers-4.18.0-1-amd64'

We know debian 10 is not officially supported, but is there a way to use it anyways? That would be great. Thanks

[PTide]

Hi,

It's not just Debian 10, kernel 4.18 is yet to be supported in the next versions. If you're not afraid of patching things, then please check this thread.
Just keep in mind that although it works, it is still not supported until official announcement.

Thanks

[t0by]

This works on my box:

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cd /tmp
git clone https://github.com/rustylife/veeamsnap.git
cd veeamsnap/source
make all
sudo make load

# Start your backup! :) 
sudo veeam

[suempu]

Thanks for your fast answer. This is perfect.

[Retrofreak]

Thanks for this hint! It works well to compile the veeamsnap module this way. But I have to load the so compiled module manually after each reboot. Is there an option to make this persistant?

[PTide]

Hi,

I would go with the easiest route and just add a small script in crontab. There also an option to add it in /etc/modules.

Thanks!