Autosmooth option causes assert failure when selected #40074

New Issue

Terry Wallwork · 2014-05-07T21:46:27+02:00

Terry Wallwork commented

2014-05-07 21:46:27 +02:00

System Information
Operating system and graphics card

Blender Version
Broken: (example: 2.69.7 4b206af, see splash screen)
Worked: (optional)

Short description of error

Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps
I am using Blender GIT Rev 2014-05-07-20-28-46-3a8f1d5 on a Fedora 20 64 bit box.

I noticed that if I switch to the Cycles Render Engine in most recent build and
then open the [3D View Editor > Properties Region > Item Panel] and select the
Auto Smooth tickable option then Blender will seg fault.

Attached my system-info.txt file, blend test file and the backtrace file.

backtrace.txt

CyclesAutosmooth_Seg_Fault.blend

system-info.txt

**System Information** Operating system and graphics card **Blender Version** Broken: (example: 2.69.7 4b206af, see splash screen) Worked: (optional) **Short description of error** **Exact steps for others to reproduce the error** Based on a (as simple as possible) attached .blend file with minimum amount of steps I am using Blender GIT Rev 2014-05-07-20-28-46-3a8f1d5 on a Fedora 20 64 bit box. I noticed that if I switch to the Cycles Render Engine in most recent build and then open the [3D View Editor > Properties Region > Item Panel] and select the Auto Smooth tickable option then Blender will seg fault. Attached my system-info.txt file, blend test file and the backtrace file. [backtrace.txt](https://archive.blender.org/developer/F87644/backtrace.txt) [CyclesAutosmooth_Seg_Fault.blend](https://archive.blender.org/developer/F87643/CyclesAutosmooth_Seg_Fault.blend) [system-info.txt](https://archive.blender.org/developer/F87642/system-info.txt)

Terry Wallwork commented

2014-05-07 21:46:27 +02:00

Changed status to: 'Open'

Terry Wallwork commented

2014-05-07 21:46:27 +02:00

Added subscriber: @TerryWallwork-1

Willi commented

2014-05-07 22:08:30 +02:00

Added subscriber: @willi-2

Willi commented

2014-05-07 22:08:30 +02:00

Cannot reproduce with blender-2.70-a351ff7-win64

Bastien Montagne self-assigned this 2014-05-07 23:40:05 +02:00

Bastien Montagne commented

2014-05-08 12:11:21 +02:00

Well, I can’t reproduce it either here (Debian64 testing, latest master), neither with release nor debug+asan…

Terry Wallwork commented

2014-05-08 14:30:44 +02:00

Ok since I posted the option has gone from the Properties Region area in the 3D Viewport.

It is still present in the Properties Editor > Object Data context > Normals Panel.

Pressing Auto Smooth in there crashes Blender for me (in both internal and cycles.)

This is with most recent build as of 13:35 may 8 2014

Updated backtrace for rev 2014-05-08-19-54-04-105aa67-x86_64 :

0 0x0000003fe7035c39 in raise () from /lib64/libc.so.6
1 0x0000003fe7037348 in abort () from /lib64/libc.so.6

2 0x00000000023e0d3d in dm_ensure_display_normals (dm=0x7fffe0001878)

  at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/DerivedMesh.c:1427

3 0x00000000023e1e65 in mesh_calc_modifiers (scene=0x6f1da38, ob=0x6f20368,

  inputVertexCos=0x0, deform_r=0x6f20870, final_r=0x6f20878, 
  useRenderParams=0, useDeform=1, needMapping=0, dataMask=637534233, 
  index=-1, useCache=1, build_shapekey_layers=0)
  at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/DerivedMesh.c:1888

4 0x00000000023e353b in mesh_build_data (scene=0x6f1da38, ob=0x6f20368,

  dataMask=637534233, build_shapekey_layers=0)
  at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/DerivedMesh.c:2241

5 0x00000000023e386a in makeDerivedMesh (scene=0x6f1da38, ob=0x6f20368,

  em=0x0, dataMask=637534233, build_shapekey_layers=0)
  at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/DerivedMesh.c:2314

6 0x000000000252aa75 in BKE_object_handle_update_ex (eval_ctx=0x6b16a68,

  scene=0x6f1da38, ob=0x6f20368, rbw=0x0, do_proxy_update=false)
  at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/object.c:2914

- Type <return> to continue, or q <return> to quit---

7 0x0000000002586cc7 in scene_update_object_func (pool=0x7efc638,

  taskdata=0x6a24138, threadid=3)
  at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/scene.c:1347

8 0x0000000002714a40 in task_scheduler_thread_run (thread_p=0x7e3aa88)

  at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenlib/intern/task.c:137

9 0x0000003fe7407f33 in start_thread () from /lib64/libpthread.so.0
10 0x0000003fe70f4ded in clone () from /lib64/libc.so.6

Ok since I posted the option has gone from the Properties Region area in the 3D Viewport. It is still present in the Properties Editor > Object Data context > Normals Panel. Pressing Auto Smooth in there crashes Blender for me (in both internal and cycles.) This is with most recent build as of 13:35 may 8 2014 Updated backtrace for rev 2014-05-08-19-54-04-105aa67-x86_64 : - 0 0x0000003fe7035c39 in raise () from /lib64/libc.so.6 - 1 0x0000003fe7037348 in abort () from /lib64/libc.so.6 # 2 0x00000000023e0d3d in dm_ensure_display_normals (dm=0x7fffe0001878) ``` at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/DerivedMesh.c:1427 ``` # 3 0x00000000023e1e65 in mesh_calc_modifiers (scene=0x6f1da38, ob=0x6f20368, ``` inputVertexCos=0x0, deform_r=0x6f20870, final_r=0x6f20878, useRenderParams=0, useDeform=1, needMapping=0, dataMask=637534233, index=-1, useCache=1, build_shapekey_layers=0) at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/DerivedMesh.c:1888 ``` # 4 0x00000000023e353b in mesh_build_data (scene=0x6f1da38, ob=0x6f20368, ``` dataMask=637534233, build_shapekey_layers=0) at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/DerivedMesh.c:2241 ``` # 5 0x00000000023e386a in makeDerivedMesh (scene=0x6f1da38, ob=0x6f20368, ``` em=0x0, dataMask=637534233, build_shapekey_layers=0) at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/DerivedMesh.c:2314 ``` # 6 0x000000000252aa75 in BKE_object_handle_update_ex (eval_ctx=0x6b16a68, ``` scene=0x6f1da38, ob=0x6f20368, rbw=0x0, do_proxy_update=false) at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/object.c:2914 ``` - Type <return> to continue, or q <return> to quit--- # 7 0x0000000002586cc7 in scene_update_object_func (pool=0x7efc638, ``` taskdata=0x6a24138, threadid=3) at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/scene.c:1347 ``` # 8 0x0000000002714a40 in task_scheduler_thread_run (thread_p=0x7e3aa88) ``` at /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenlib/intern/task.c:137 ``` - 9 0x0000003fe7407f33 in start_thread () from /lib64/libpthread.so.0 - 10 0x0000003fe70f4ded in clone () from /lib64/libc.so.6

Terry Wallwork commented

2014-05-08 14:40:26 +02:00

The above is for a default scene with default settings.

Bastien Montagne commented

2014-05-08 14:43:28 +02:00

Yep, but unfortunately a backtrace won’t help that much here… :/

Anyway, option is still (since ages) in Mesh buttons, Normals panel (I removed it from 3DView from Campbell's request).

Yep, but unfortunately a backtrace won’t help that much here… :/ Anyway, option is still (since ages) in Mesh buttons, Normals panel (I removed it from 3DView from Campbell's request).

Bastien Montagne commented

2014-05-08 14:45:57 +02:00

Do you use builds from the buildbot, or your own builds? If the later, could you please try with an official build? and what would be your compiler version?

Brecht Van Lommel commented

2014-05-08 15:24:38 +02:00

Added subscriber: @brecht

Brecht Van Lommel commented

2014-05-08 15:24:38 +02:00

Are you compiling with WITH_ASSERT_ABORT enabled?

The abort in the backtrace indicates it's crashing on BLI_assert. And when running a debug build, I can indeed see a message

BLI_assert failed: /Users/brecht/dev/neo/blender/source/blender/blenkernel/intern/DerivedMesh.c:1427, dm_ensure_display_normals(), at 'CustomData_has_layer(&dm->polyData, CD_NORMAL) == 0'

But it does not actually crash unless WITH_ASSERT_ABORT is enabled in the cmake configuration, and it's disabled by default.

Are you compiling with WITH_ASSERT_ABORT enabled? The `abort` in the backtrace indicates it's crashing on `BLI_assert`. And when running a debug build, I can indeed see a message ``` BLI_assert failed: /Users/brecht/dev/neo/blender/source/blender/blenkernel/intern/DerivedMesh.c:1427, dm_ensure_display_normals(), at 'CustomData_has_layer(&dm->polyData, CD_NORMAL) == 0' ``` But it does not actually crash unless WITH_ASSERT_ABORT is enabled in the cmake configuration, and it's disabled by default.

Terry Wallwork commented

2014-05-08 16:25:29 +02:00

mont29: yes sorry I just noticed it was removed in logs, sorry about that.

mont29: I am using my own builds, i will try with build bot (assuming there is an uptodate enough version and report back).

I am using the following gcc version according to gcc -v:

[terry@localhost ~]$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.2/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-isl=/builddir/build/BUILD/gcc-4.8.2-20131212/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.2-20131212/obj-x86_64-redhat-linux/cloog-install --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.8.2 20131212 (Red Hat 4.8.2-7) (GCC)

brecht: Yes I am using Debug builds, and assert abort is active (which is intentional I was told that asserts should be reported, as asserts should never trigger). Also it has never triggered before and has always worked with assert abort active.

Output on the cosole when it happens is :

Read new prefs: /home/terry/.config/blender/2.70/config/userpref.blend
found bundled python: /home/terry/BLENDERBINARIES/Blender-2.70-GIT2014-05-08-19-54-04-105aa67-x86_64-GNU-Linux/share/blender/2.70/python
BLI_assert failed: /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/DerivedMesh.c:1427, dm_ensure_display_normals(), at 'CustomData_has_layer(&dm->polyData, CD_NORMAL) == 0'
./blender: line 3: 9484 Aborted (core dumped) /home/terry/BLENDERBINARIES/Blender-2.70-GIT2014-05-08-19-54-04-105aa67-x86_64-GNU-Linux/bin/blender

So yes it looks like an abort/assert. I just assumed when it said core dump that was same as seg fault. I will make sure to highlight differently in reports in future.

mont29: yes sorry I just noticed it was removed in logs, sorry about that. mont29: I am using my own builds, i will try with build bot (assuming there is an uptodate enough version and report back). I am using the following gcc version according to gcc -v: [terry@localhost ~]$ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.2/lto-wrapper Target: x86_64-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-isl=/builddir/build/BUILD/gcc-4.8.2-20131212/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.2-20131212/obj-x86_64-redhat-linux/cloog-install --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux Thread model: posix gcc version 4.8.2 20131212 (Red Hat 4.8.2-7) (GCC) brecht: Yes I am using Debug builds, and assert abort is active (which is intentional I was told that asserts should be reported, as asserts should never trigger). Also it has never triggered before and has always worked with assert abort active. Output on the cosole when it happens is : Read new prefs: /home/terry/.config/blender/2.70/config/userpref.blend found bundled python: /home/terry/BLENDERBINARIES/Blender-2.70-GIT2014-05-08-19-54-04-105aa67-x86_64-GNU-Linux/share/blender/2.70/python BLI_assert failed: /home/terry/BLENDER-GIT/EXTERNALSOURCES/BLENDER/source/blender/blenkernel/intern/DerivedMesh.c:1427, dm_ensure_display_normals(), at 'CustomData_has_layer(&dm->polyData, CD_NORMAL) == 0' ./blender: line 3: 9484 Aborted (core dumped) /home/terry/BLENDERBINARIES/Blender-2.70-GIT2014-05-08-19-54-04-105aa67-x86_64-GNU-Linux/bin/blender So yes it looks like an abort/assert. I just assumed when it said core dump that was same as seg fault. I will make sure to highlight differently in reports in future.

Brecht Van Lommel changed title from ~~Cycles Autosmooth option causes segfault when selected~~ to Autosmooth option causes segfault when selected

2014-05-08 17:04:01 +02:00

Bastien Montagne commented

2014-05-08 17:32:18 +02:00

Oki, see the issue now…

Bastien Montagne changed title from ~~Autosmooth option causes segfault when selected~~ to Autosmooth option causes assert failure when selected

2014-05-08 17:32:42 +02:00

blender-admin commented

2014-05-08 17:48:00 +02:00

This issue was referenced by blender/blender-addons-contrib@5a8d7af642

This issue was referenced by blender/blender-addons-contrib@5a8d7af642d8770cfc8e3b120f7de021efa1cbb9

blender-admin commented

2014-05-08 17:48:00 +02:00

This issue was referenced by 5a8d7af642

This issue was referenced by 5a8d7af642d8770cfc8e3b120f7de021efa1cbb9

Bastien Montagne commented

2014-05-08 17:57:48 +02:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2014-05-08 17:57:48 +02:00

Bastien Montagne commented

2014-05-08 17:57:48 +02:00

Closed by commit 5a8d7af642.

Closed by commit 5a8d7af642.

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Autosmooth option causes assert failure when selected #40074

2 0x00000000023e0d3d in dm_ensure_display_normals (dm=0x7fffe0001878)

3 0x00000000023e1e65 in mesh_calc_modifiers (scene=0x6f1da38, ob=0x6f20368,

4 0x00000000023e353b in mesh_build_data (scene=0x6f1da38, ob=0x6f20368,

5 0x00000000023e386a in makeDerivedMesh (scene=0x6f1da38, ob=0x6f20368,

6 0x000000000252aa75 in BKE_object_handle_update_ex (eval_ctx=0x6b16a68,

7 0x0000000002586cc7 in scene_update_object_func (pool=0x7efc638,

8 0x0000000002714a40 in task_scheduler_thread_run (thread_p=0x7e3aa88)