Linux Mint 18.3 - BlendLuxCore - Latest Master

[SteffenD]

Hi there,

I'm just beginning to explore the exciting world of LuxCore, Linux Mint and my own compiles of Blender master.
I know that on the Windows side of things there's no way to use the latest BlendLuxCore with a master build of Blender.
On Linux on the other hand I can successfully install and use BlendLuxCore with a downloaded build from Buildbot.
I also had success with a simple build of master (a simple make without further configuration) but as soon as I start activating further build options LuxCore no longer shows up in the list of available render engines.

I'm currently trying to find the "culprit" but this will take a long time, so maybe some developer or anyone with more experience can help me.

I can e.g. activate "Alembic" and still use BlendLuxCore but I can't use "Alembic_HDF5".

Now rather than testing all possible combinations, I'd like to know what kind of compile options LuxCore "accepts" and which it "hates".

Cheers

[jensverwiebe]

Don't use HDF5 option.
We decided not to use it anymore cause of too many versions having different capabilities/compatibilities.
Also it would only compile with a special version of alembic, major pita.
The recommended format is alembic.abc.
If you need converting .abc files, you can use the alembic_utilities.
In case i have some prepared on my server.

Away from this i use actual master builds on my linux mint 17.3 just fine with luxcore2.
It would be interesting what your log throws about conflicts, i don't know any btw..
But i have something suspicious in mind.

2.8 branch indeed is a nogo.

EDIT: my guess

Code: Select all

undefined symbol: _ZN3tbb10interface78internal15task_arena_base24internal_max_concurrencyEPKNS0_10task_arenaE

If so, either disable OpenVDB or update your tbb/tbbmalloc to the versions that come with luxcore delivered embree version.
Buildbot builds use tbb static ( which is highly not recommended btw. , same is true for openMP), but typically you will
get it linked dynamic thus ending up in version problems ( a module pulls the symbols from the host ! )
P.S.: guess you know its best to see this when starting blender in a terminal ( flag in starter or ./blender from inside blender dir )


Jens

[SteffenD]

Thanks for your reply, Jens.

yes, this "undefined symbol" is exactly the error that comes up.
I'm trying a new compile right now with both HDF5 and VDB / BLOSC disabled. I can live without both of them at the moment.

EDIT: That didn't work. I'll uncheck some more things like OpenCollada and others I don't really need at the moment...

[jensverwiebe]

Thanks for your reply, Jens.

yes, this "undefined symbol" is exactly the error that comes up.
I'm trying a new compile right now with both HDF5 and VDB / BLOSC disabled. I can live without both of them at the moment.

EDIT: That didn't work. I'll uncheck some more things like OpenCollada and others I don't really need at the moment...

Nah, if it was exactly this symbol missing, its from tbb. If another symbol is missing, its another problem.
Am not aware other parts of blender thread with tbb except mantaflow builds ( if configured todo so ).
Check with ldd blender if tbb is still linked . ( mach hinne )
For devs: demangled its:

Code: Select all

tbb::interface7::internal::task_arena_base::internal_max_concurrency(tbb::interface7::task_arena const*)

Checked over: really only opnvdb uses tbb, so perhaps you missed to clean the cmake cache ?
Looking for another trick as well atm ( export maps supress )


Jens

[SteffenD]

Thanks for your help. I'm still a noob when it comes to a) Linux b) building Blender and c) LuxCore

Of course I already compiled another version before I could do a "ldd blender" but I was quite sure that I used "make clean" and even deleted the "build_full" folder before compiling.

Now I'm completely recompiling everything with OpenVDB and OpenVDB_Blosc OFF... my system is 10 years old so it takes a little while. I'll update this with the result of "ldd blender" afterwards. The error message is 100% exactly the one you mentioned, though.

EDIT: Hmm, the new compile is ready and not working with BlendLuxCore. "ldd blender" shows that it still links tbb stuff, although I switched off VDB and BLOSC and completely deleted the build_linux folder before compiling.
Here's the log:

Code: Select all

	linux-vdso.so.1 =>  (0x00007fff9e3e2000)
	libpng12.so.0 => /lib/x86_64-linux-gnu/libpng12.so.0 (0x00007f1154dae000)
	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f1154b94000)
	libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f11548ea000)
	libpython3.6m.so.1.0 => /usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0 (0x00007f11541f9000)
	libopenal.so.1 => /usr/lib/x86_64-linux-gnu/libopenal.so.1 (0x00007f1153f89000)
	libfftw3.so.3 => /usr/lib/x86_64-linux-gnu/libfftw3.so.3 (0x00007f1153b8b000)
	libsndfile.so.1 => /usr/lib/x86_64-linux-gnu/libsndfile.so.1 (0x00007f1153922000)
	libtiff.so.5 => /usr/lib/x86_64-linux-gnu/libtiff.so.5 (0x00007f11536ae000)
	libOpenImageIO.so.1.7 => /opt/lib/oiio/lib/libOpenImageIO.so.1.7 (0x00007f1152b94000)
	libjpeg.so.8 => /usr/lib/x86_64-linux-gnu/libjpeg.so.8 (0x00007f115293b000)
	libboost_thread.so.1.58.0 => /usr/lib/x86_64-linux-gnu/libboost_thread.so.1.58.0 (0x00007f1152715000)
	libboost_locale.so.1.58.0 => /usr/lib/x86_64-linux-gnu/libboost_locale.so.1.58.0 (0x00007f115242d000)
	libboost_system.so.1.58.0 => /usr/lib/x86_64-linux-gnu/libboost_system.so.1.58.0 (0x00007f1152229000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f115200c000)
	libHalf.so.12 => /usr/lib/x86_64-linux-gnu/libHalf.so.12 (0x00007f1151dc9000)
	libIex-2_2.so.12 => /usr/lib/x86_64-linux-gnu/libIex-2_2.so.12 (0x00007f1151bab000)
	libIlmImf-2_2.so.22 => /usr/lib/x86_64-linux-gnu/libIlmImf-2_2.so.22 (0x00007f11516dd000)
	libosdGPU.so.3.1.1 => /opt/lib/osd/lib/libosdGPU.so.3.1.1 (0x00007f11514ae000)
	libosdCPU.so.3.1.1 => /opt/lib/osd/lib/libosdCPU.so.3.1.1 (0x00007f115123b000)
	liboslcomp.so => /opt/lib/osl/lib/liboslcomp.so (0x00007f1150f68000)
	liboslexec.so => /opt/lib/osl/lib/liboslexec.so (0x00007f114fd50000)
	libAlembic.so => /opt/lib/alembic/lib/libAlembic.so (0x00007f114f8c5000)
	libavformat-ffmpeg.so.56 => /usr/lib/x86_64-linux-gnu/libavformat-ffmpeg.so.56 (0x00007f114f4c7000)
	libavcodec-ffmpeg.so.56 => /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56 (0x00007f114e098000)
	libavutil-ffmpeg.so.54 => /usr/lib/x86_64-linux-gnu/libavutil-ffmpeg.so.54 (0x00007f114de29000)
	libavdevice-ffmpeg.so.56 => /usr/lib/x86_64-linux-gnu/libavdevice-ffmpeg.so.56 (0x00007f114dbfb000)
	libswscale-ffmpeg.so.3 => /usr/lib/x86_64-linux-gnu/libswscale-ffmpeg.so.3 (0x00007f114d96c000)
	libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f114d6fc000)
	libxml2.so.2 => /usr/lib/x86_64-linux-gnu/libxml2.so.2 (0x00007f114d341000)
	libjemalloc.so.1 => /usr/lib/x86_64-linux-gnu/libjemalloc.so.1 (0x00007f114d10a000)
	libspnav.so.0 => /usr/lib/libspnav.so.0 (0x00007f114cf06000)
	libGLU.so.1 => /usr/lib/x86_64-linux-gnu/libGLU.so.1 (0x00007f114cc97000)
	libGL.so.1 => /usr/lib/nvidia-390/libGL.so.1 (0x00007f114c95b000)
	libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f114c621000)
	libXi.so.6 => /usr/lib/x86_64-linux-gnu/libXi.so.6 (0x00007f114c411000)
	libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007f114c20b000)
	libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007f114c005000)
	libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 (0x00007f114bdfb000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f114bbf7000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f114b82d000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f1154fd3000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f114b524000)
	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f114b1a2000)
	libgomp.so.1 => /usr/lib/x86_64-linux-gnu/libgomp.so.1 (0x00007f114af80000)
	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f114ad6a000)
	libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f114ab41000)
	libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f114a93e000)
	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f114a736000)
	libFLAC.so.8 => /usr/lib/x86_64-linux-gnu/libFLAC.so.8 (0x00007f114a4c1000)
	libvorbisenc.so.2 => /usr/lib/x86_64-linux-gnu/libvorbisenc.so.2 (0x00007f114a218000)
	liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f1149ff6000)
	libjbig.so.0 => /usr/lib/x86_64-linux-gnu/libjbig.so.0 (0x00007f1149de8000)
	libopenjpeg.so.5 => /usr/lib/x86_64-linux-gnu/libopenjpeg.so.5 (0x00007f1149bc5000)
	libboost_filesystem.so.1.58.0 => /usr/lib/x86_64-linux-gnu/libboost_filesystem.so.1.58.0 (0x00007f11499ad000)
	libboost_regex.so.1.58.0 => /usr/lib/x86_64-linux-gnu/libboost_regex.so.1.58.0 (0x00007f11496a5000)
	libicui18n.so.55 => /usr/lib/x86_64-linux-gnu/libicui18n.so.55 (0x00007f1149243000)
	libicuuc.so.55 => /usr/lib/x86_64-linux-gnu/libicuuc.so.55 (0x00007f1148eaf000)
	libIlmThread-2_2.so.12 => /usr/lib/x86_64-linux-gnu/libIlmThread-2_2.so.12 (0x00007f1148ca8000)
	libtbbmalloc_proxy.so.2 => /usr/lib/x86_64-linux-gnu/libtbbmalloc_proxy.so.2 (0x00007f1148aa4000)
	libGLEW.so.1.13 => /usr/lib/x86_64-linux-gnu/libGLEW.so.1.13 (0x00007f1148821000)
	libtbb.so.2 => /usr/lib/x86_64-linux-gnu/libtbb.so.2 (0x00007f11485e4000)
	libboost_wave.so.1.58.0 => /usr/lib/x86_64-linux-gnu/libboost_wave.so.1.58.0 (0x00007f11482bd000)
	libssh-gcrypt.so.4 => /usr/lib/x86_64-linux-gnu/libssh-gcrypt.so.4 (0x00007f1148074000)
	librtmp.so.1 => /usr/lib/x86_64-linux-gnu/librtmp.so.1 (0x00007f1147e58000)
	libmodplug.so.1 => /usr/lib/x86_64-linux-gnu/libmodplug.so.1 (0x00007f1147acd000)
	libgme.so.0 => /usr/lib/x86_64-linux-gnu/libgme.so.0 (0x00007f114787f000)
	libbluray.so.1 => /usr/lib/x86_64-linux-gnu/libbluray.so.1 (0x00007f1147636000)
	libgnutls.so.30 => /usr/lib/x86_64-linux-gnu/libgnutls.so.30 (0x00007f1147306000)
	libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 (0x00007f11470f6000)
	libswresample-ffmpeg.so.1 => /usr/lib/x86_64-linux-gnu/libswresample-ffmpeg.so.1 (0x00007f1146ed9000)
	libva.so.1 => /usr/lib/x86_64-linux-gnu/libva.so.1 (0x00007f1146cbd000)
	libzvbi.so.0 => /usr/lib/x86_64-linux-gnu/libzvbi.so.0 (0x00007f1146a32000)
	libxvidcore.so.4 => /usr/lib/x86_64-linux-gnu/libxvidcore.so.4 (0x00007f114671e000)
	libx265.so.79 => /usr/lib/x86_64-linux-gnu/libx265.so.79 (0x00007f1145aff000)
	libx264.so.148 => /usr/lib/x86_64-linux-gnu/libx264.so.148 (0x00007f114575b000)
	libwebp.so.5 => /usr/lib/x86_64-linux-gnu/libwebp.so.5 (0x00007f11454ff000)
	libwavpack.so.1 => /usr/lib/x86_64-linux-gnu/libwavpack.so.1 (0x00007f11452d6000)
	libvpx.so.3 => /usr/lib/x86_64-linux-gnu/libvpx.so.3 (0x00007f1144eb2000)
	libvorbis.so.0 => /usr/lib/x86_64-linux-gnu/libvorbis.so.0 (0x00007f1144c86000)
	libvo-amrwbenc.so.0 => /usr/lib/x86_64-linux-gnu/libvo-amrwbenc.so.0 (0x00007f1144a6c000)
	libvo-aacenc.so.0 => /usr/lib/x86_64-linux-gnu/libvo-aacenc.so.0 (0x00007f114484f000)
	libtwolame.so.0 => /usr/lib/x86_64-linux-gnu/libtwolame.so.0 (0x00007f114462c000)
	libtheoraenc.so.1 => /usr/lib/x86_64-linux-gnu/libtheoraenc.so.1 (0x00007f11443ed000)
	libtheoradec.so.1 => /usr/lib/x86_64-linux-gnu/libtheoradec.so.1 (0x00007f11441d3000)
	libspeex.so.1 => /usr/lib/x86_64-linux-gnu/libspeex.so.1 (0x00007f1143fba000)
	libsnappy.so.1 => /usr/lib/x86_64-linux-gnu/libsnappy.so.1 (0x00007f1143db2000)
	libshine.so.3 => /usr/lib/x86_64-linux-gnu/libshine.so.3 (0x00007f1143ba5000)
	libschroedinger-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libschroedinger-1.0.so.0 (0x00007f11438d0000)
	libopus.so.0 => /usr/lib/x86_64-linux-gnu/libopus.so.0 (0x00007f1143686000)
	libopencore-amrwb.so.0 => /usr/lib/x86_64-linux-gnu/libopencore-amrwb.so.0 (0x00007f1143472000)
	libopencore-amrnb.so.0 => /usr/lib/x86_64-linux-gnu/libopencore-amrnb.so.0 (0x00007f1143247000)
	libmp3lame.so.0 => /usr/lib/x86_64-linux-gnu/libmp3lame.so.0 (0x00007f1142fd2000)
	libgsm.so.1 => /usr/lib/x86_64-linux-gnu/libgsm.so.1 (0x00007f1142dc4000)
	libcrystalhd.so.3 => /usr/lib/x86_64-linux-gnu/libcrystalhd.so.3 (0x00007f1142ba9000)
	libavfilter-ffmpeg.so.5 => /usr/lib/x86_64-linux-gnu/libavfilter-ffmpeg.so.5 (0x00007f1142806000)
	libXv.so.1 => /usr/lib/x86_64-linux-gnu/libXv.so.1 (0x00007f1142601000)
	libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f11423ef000)
	libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f11421cd000)
	libxcb-shm.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0 (0x00007f1141fc9000)
	libxcb-xfixes.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-xfixes.so.0 (0x00007f1141dc1000)
	libxcb-shape.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-shape.so.0 (0x00007f1141bbd000)
	libcdio_paranoia.so.1 => /usr/lib/x86_64-linux-gnu/libcdio_paranoia.so.1 (0x00007f11419b5000)
	libcdio_cdda.so.1 => /usr/lib/x86_64-linux-gnu/libcdio_cdda.so.1 (0x00007f11417ad000)
	libjack.so.0 => /usr/lib/x86_64-linux-gnu/libjack.so.0 (0x00007f114158d000)
	libasound.so.2 => /usr/lib/x86_64-linux-gnu/libasound.so.2 (0x00007f114128d000)
	libSDL-1.2.so.0 => /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0 (0x00007f1140ff4000)
	libdc1394.so.22 => /usr/lib/x86_64-linux-gnu/libdc1394.so.22 (0x00007f1140d7e000)
	libpulse.so.0 => /usr/lib/x86_64-linux-gnu/libpulse.so.0 (0x00007f1140b2e000)
	libcaca.so.0 => /usr/lib/x86_64-linux-gnu/libcaca.so.0 (0x00007f1140865000)
	libraw1394.so.11 => /usr/lib/x86_64-linux-gnu/libraw1394.so.11 (0x00007f1140656000)
	libavc1394.so.0 => /usr/lib/x86_64-linux-gnu/libavc1394.so.0 (0x00007f1140451000)
	librom1394.so.0 => /usr/lib/x86_64-linux-gnu/librom1394.so.0 (0x00007f114024c000)
	libiec61883.so.0 => /usr/lib/x86_64-linux-gnu/libiec61883.so.0 (0x00007f114003f000)
	libnvidia-tls.so.390.12 => /usr/lib/nvidia-390/tls/libnvidia-tls.so.390.12 (0x00007f113fe3b000)
	libnvidia-glcore.so.390.12 => /usr/lib/nvidia-390/libnvidia-glcore.so.390.12 (0x00007f113e090000)
	libogg.so.0 => /usr/lib/x86_64-linux-gnu/libogg.so.0 (0x00007f113de87000)
	libicudata.so.55 => /usr/lib/x86_64-linux-gnu/libicudata.so.55 (0x00007f113c3d0000)
	libtbbmalloc.so.2 => /usr/lib/x86_64-linux-gnu/libtbbmalloc.so.2 (0x00007f113c192000)
	libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007f113beb1000)
	libgssapi_krb5.so.2 => /usr/lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x00007f113bc67000)
	libhogweed.so.4 => /usr/lib/x86_64-linux-gnu/libhogweed.so.4 (0x00007f113ba34000)
	libnettle.so.6 => /usr/lib/x86_64-linux-gnu/libnettle.so.6 (0x00007f113b7fe000)
	libgmp.so.10 => /usr/lib/x86_64-linux-gnu/libgmp.so.10 (0x00007f113b57e000)
	libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f113b33b000)
	libp11-kit.so.0 => /usr/lib/x86_64-linux-gnu/libp11-kit.so.0 (0x00007f113b0d7000)
	libidn.so.11 => /usr/lib/x86_64-linux-gnu/libidn.so.11 (0x00007f113aea4000)
	libtasn1.so.6 => /usr/lib/x86_64-linux-gnu/libtasn1.so.6 (0x00007f113ac91000)
	libsoxr.so.0 => /usr/lib/x86_64-linux-gnu/libsoxr.so.0 (0x00007f113aa2c000)
	libnuma.so.1 => /usr/lib/x86_64-linux-gnu/libnuma.so.1 (0x00007f113a821000)
	liborc-0.4.so.0 => /usr/lib/x86_64-linux-gnu/liborc-0.4.so.0 (0x00007f113a5a1000)
	libpostproc-ffmpeg.so.53 => /usr/lib/x86_64-linux-gnu/libpostproc-ffmpeg.so.53 (0x00007f113a385000)
	libavresample-ffmpeg.so.2 => /usr/lib/x86_64-linux-gnu/libavresample-ffmpeg.so.2 (0x00007f113a163000)
	libzmq.so.5 => /usr/lib/x86_64-linux-gnu/libzmq.so.5 (0x00007f1139efd000)
	libopencv_core.so.2.4 => /usr/lib/x86_64-linux-gnu/libopencv_core.so.2.4 (0x00007f1139ad3000)
	libopencv_imgproc.so.2.4 => /usr/lib/x86_64-linux-gnu/libopencv_imgproc.so.2.4 (0x00007f1139648000)
	libfribidi.so.0 => /usr/lib/x86_64-linux-gnu/libfribidi.so.0 (0x00007f1139431000)
	libflite_cmu_us_awb.so.1 => /usr/lib/x86_64-linux-gnu/libflite_cmu_us_awb.so.1 (0x00007f1138e3c000)
	libflite_cmu_us_kal.so.1 => /usr/lib/x86_64-linux-gnu/libflite_cmu_us_kal.so.1 (0x00007f1138ad9000)
	libflite_cmu_us_kal16.so.1 => /usr/lib/x86_64-linux-gnu/libflite_cmu_us_kal16.so.1 (0x00007f1138502000)
	libflite_cmu_us_rms.so.1 => /usr/lib/x86_64-linux-gnu/libflite_cmu_us_rms.so.1 (0x00007f1137e6a000)
	libflite_cmu_us_slt.so.1 => /usr/lib/x86_64-linux-gnu/libflite_cmu_us_slt.so.1 (0x00007f1137874000)
	libflite.so.1 => /usr/lib/x86_64-linux-gnu/libflite.so.1 (0x00007f113763e000)
	libbs2b.so.0 => /usr/lib/x86_64-linux-gnu/libbs2b.so.0 (0x00007f1137438000)
	libass.so.5 => /usr/lib/x86_64-linux-gnu/libass.so.5 (0x00007f1137208000)
	libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f1137004000)
	libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f1136dfe000)
	libcdio.so.13 => /usr/lib/x86_64-linux-gnu/libcdio.so.13 (0x00007f1136bd9000)
	libdb-5.3.so => /usr/lib/x86_64-linux-gnu/libdb-5.3.so (0x00007f113682c000)
	libpulse-simple.so.0 => /usr/lib/x86_64-linux-gnu/libpulse-simple.so.0 (0x00007f1136627000)
	libusb-1.0.so.0 => /lib/x86_64-linux-gnu/libusb-1.0.so.0 (0x00007f113640f000)
	libjson-c.so.2 => /lib/x86_64-linux-gnu/libjson-c.so.2 (0x00007f1136204000)
	libpulsecommon-8.0.so => /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-8.0.so (0x00007f1135f89000)
	libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007f1135d3d000)
	libslang.so.2 => /lib/x86_64-linux-gnu/libslang.so.2 (0x00007f11359b1000)
	libncursesw.so.5 => /lib/x86_64-linux-gnu/libncursesw.so.5 (0x00007f1135782000)
	libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007f1135559000)
	libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007f1135345000)
	libkrb5.so.3 => /usr/lib/x86_64-linux-gnu/libkrb5.so.3 (0x00007f1135073000)
	libk5crypto.so.3 => /usr/lib/x86_64-linux-gnu/libk5crypto.so.3 (0x00007f1134e44000)
	libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x00007f1134c40000)
	libkrb5support.so.0 => /usr/lib/x86_64-linux-gnu/libkrb5support.so.0 (0x00007f1134a35000)
	libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 (0x00007f113482d000)
	libsodium.so.18 => /usr/lib/x86_64-linux-gnu/libsodium.so.18 (0x00007f11345cf000)
	libflite_usenglish.so.1 => /usr/lib/x86_64-linux-gnu/libflite_usenglish.so.1 (0x00007f11343a6000)
	libflite_cmulex.so.1 => /usr/lib/x86_64-linux-gnu/libflite_cmulex.so.1 (0x00007f1134111000)
	libharfbuzz.so.0 => /usr/lib/x86_64-linux-gnu/libharfbuzz.so.0 (0x00007f1133eb3000)
	libudev.so.1 => /lib/x86_64-linux-gnu/libudev.so.1 (0x00007f1155164000)
	libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007f11550de000)
	libwrap.so.0 => /lib/x86_64-linux-gnu/libwrap.so.0 (0x00007f1133ca9000)
	libasyncns.so.0 => /usr/lib/x86_64-linux-gnu/libasyncns.so.0 (0x00007f1133aa3000)
	libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x00007f113389f000)
	libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f1133684000)
	libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f1133373000)
	libgraphite2.so.3 => /usr/lib/x86_64-linux-gnu/libgraphite2.so.3 (0x00007f113314d000)
	libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f1132f2b000)
	libnsl.so.1 => /lib/x86_64-linux-gnu/libnsl.so.1 (0x00007f1132d12000)

[jensverwiebe]

Tbb is still present in blender , wtf., should not be.
I personally have an easier solution as i use rpath set in blender, so i just deliver the right tbb and voila.
Anyway, i atm look for a more versatile solution, eventually i make runtime lookup stricter, stay tuned.

You can tell me which solution you prefer for now.
rpath setting is easy.
Best doing such in IRC Channel.


Jens

[SteffenD]

Thanks, no need to hurry though. I can always use the Buildbot download to test LuxCore

[jensverwiebe]

Okay, no compiling solution in sight .

Here is a workaround for your own builds:

1: Get chrpath ( sudo apt-get )
2. cd into blender dir
3 type:

Code: Select all

chrpath -r '$ORIGIN' blender

4. copy the luxcore delivered libtbb.so.2 into your blender dir.

Thats a quick workaround for now. It will make any of your builds find the missing symbol.( no recompile )
Explanation: now blender will lookup tbb first in its runpath ( $ORIGIN ), so our compatible version is used.

Jens

[SteffenD]

Wow! So much to learn now under Linux. Thanks for this info, I'll give it a try soon.

[jensverwiebe]

The problem is that intel changed their ABI without bumping the SO version of tbb it seems.

Old/new tbb both show:

Code: Select all

LC_ALL=C readelf -a -W libtbb.so.2|grep soname
 0x000000000000000e (SONAME)             Library soname: [libtbb.so.2]

Embree 2.17.1 deliverd tbb:

Code: Select all

readelf -a -W libtbb.so.2|grep _ZN3tbb10interface78internal15task_arena_base24internal_max_concurrencyEPKNS0_10task_arenaE
    72: 0000000000024480    96 FUNC    GLOBAL DEFAULT   11 _ZN3tbb10interface78internal15task_arena_base24internal_max_concurrencyEPKNS0_10task_arenaE
  1130: 0000000000024480    96 FUNC    GLOBAL DEFAULT   11 _ZN3tbb10interface78internal15task_arena_base24internal_max_concurrencyEPKNS0_10task_arenaE

System tbb ( or from embree 2.8.0 ):

Code: Select all

readelf -a -W libtbb.so.2|grep _ZN3tbb10interface78internal15task_arena_base24internal_max_concurrencyEPKNS0_10task_arenaE
<nada>

Nice eh
So nothing i can do atm..
Go with the workaround i gave you for now, i think about a true solution later.

Or you start blender with a preload script ( new tbb must be still in that path ):

Code: Select all

#!/bin/bash

ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
export LC_ALL=C
# TBB dynamic library is assumed to be located in blender root dir.
export LD_PRELOAD="$ROOT/libtbb.so.2"

cd "$ROOT"
./blender "$@"

Conclusion: this only applies for dynamic build blender and an outdated libtbb in the system, not release- or buildbot-builds !

Jens