assign/create a material while in sculpt mode + multiresolution modfier = blender crash #61837

New Issue

Massimiliano Puliero · 2019-02-22T06:26:50+01:00

2019-02-22 06:26:50 +01:00

System Information
Operating system: win7 64
Graphics card: gtx 1070

Blender Version
Broken: 2.80.0-git.4d4ae491c809-windows64
Worked: 2.80.0-git.855b3e68ef27-windows64

Short description of error
assign or create a material while in sculpt mode + multiresolution modfier makes blender crash

Exact steps for others to reproduce the error
create a geometry >>> assign multiresolution modifier >>> subdivide a couple of time >>> while in sculpt mode, create e new material to reproduce the crash.

thank you

**System Information** Operating system: win7 64 Graphics card: gtx 1070 **Blender Version** Broken: 2.80.0-git.4d4ae491c809-windows64 Worked: 2.80.0-git.855b3e68ef27-windows64 **Short description of error** assign or create a material while in sculpt mode + multiresolution modfier makes blender crash **Exact steps for others to reproduce the error** create a geometry >>> assign multiresolution modifier >>> subdivide a couple of time >>> while in sculpt mode, create e new material to reproduce the crash. thank you

Massimiliano Puliero commented

2019-02-22 06:26:50 +01:00

Added subscriber: @MassimilianoPuliero

Sebastian Parborg commented

2019-02-22 13:20:20 +01:00

Added subscriber: @ZedDB

Sergey Sharybin was assigned by Sebastian Parborg

2019-02-22 13:20:20 +01:00

Sebastian Parborg commented

2019-02-22 13:20:20 +01:00

BT:

Thread 1 "blender" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
- 0  0x0000000000000000 in ?? ()
- 1  0x00007ffff5543cc7 in OpenSubdiv::v3_3_3::Far::TopologyRefiner::~TopologyRefiner (this=0x7fffce80e6a0, __in_chrg=<optimized out>)
    at /usr/src/debug/media-libs/opensubdiv-3.3.3/OpenSubdiv-3_3_3/opensubdiv/far/topologyRefiner.cpp:73
#2  0x0000555557b78bc1 in OpenSubdiv_TopologyRefinerInternal::~OpenSubdiv_TopologyRefinerInternal (this=<optimized out>, __in_chrg=<optimized out>)
    at /home/zed/programmering/blender_master/blender/intern/opensubdiv/internal/opensubdiv_topology_refiner_internal.cc:25
#3  0x0000555557b7819a in openSubdiv_deleteTopologyRefiner (topology_refiner=0x7fffccf1ca68)
    at /home/zed/programmering/blender_master/blender/intern/opensubdiv/internal/opensubdiv_topology_refiner.cc:245
#4  0x00005555569a87a5 in BKE_subdiv_free (subdiv=0x7fffce83f548)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/subdiv.c:201
#5  0x00005555569a9842 in BKE_subdiv_ccg_destroy (subdiv_ccg=0x7fffcd6c00c8)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/subdiv_ccg.c:659
#6  0x0000555556905be1 in BKE_mesh_runtime_clear_geometry (mesh=mesh@entry=0x7fffcf6c7c08)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/mesh_runtime.c:210
#7  0x0000555556905c49 in BKE_mesh_runtime_clear_cache (mesh=mesh@entry=0x7fffcf6c7c08)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/mesh_runtime.c:72
#8  0x00005555568ecc53 in BKE_mesh_free (me=me@entry=0x7fffcf6c7c08)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/mesh.c:464
#9  0x0000555556923c94 in BKE_object_free_derived_caches (ob=ob@entry=0x7fffe3fca408)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/object.c:467
#10 0x0000555556bd5b69 in DEG::deg_restore_object_runtime (object_runtime_backup=0x7fffffffd8a0, object=0x7fffe3fca408)
    at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:851
#11 DEG::deg_update_copy_on_write_datablock (depsgraph=0x7fffe3fb9b08, id_node=0x7fffd84eae88)
    at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:956
#12 0x0000555556bd4536 in std::function<void (Depsgraph*)>::operator()(Depsgraph*) const (__args#0=<optimized out>, this=0x7fffd84eac00)
    at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/bits/std_function.h:682
#13 DEG::deg_task_run_func (pool=0x7fffcc3b6008, taskdata=0x7fffd84eab88, thread_id=0)
    at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/eval/deg_eval.cc:88
#14 0x0000555556bb5d74 in handle_local_queue (thread_id=0, tls=0x7fffd8677018)
    at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:417
- 15 BLI_task_pool_work_and_wait (pool=0x7fffcc3b6008) at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:904
- 16 0x0000555556bb5e39 in BLI_task_pool_work_wait_and_reset (pool=pool@entry=0x7fffcc3b6008)
    at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:925
#17 0x0000555556bd47ab in DEG::deg_evaluate_on_refresh (graph=graph@entry=0x7fffe3fb9b08)
    at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/eval/deg_eval.cc:317
#18 0x0000555556bc0bc8 in DEG_evaluate_on_refresh (graph=graph@entry=0x7fffe3fb9b08)
    at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/depsgraph_eval.cc:63
#19 0x000055555696b277 in BKE_scene_graph_update_tagged (depsgraph=depsgraph@entry=0x7fffe3fb9b08, bmain=bmain@entry=0x7fffe9fed608)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/scene.c:1497
#20 0x000055555610d7d8 in wm_event_do_depsgraph (C=C@entry=0x7fffea058188)
    at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_event_system.c:341
#21 0x000055555610d875 in wm_event_do_refresh_wm_and_depsgraph (C=C@entry=0x7fffea058188)
    at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_event_system.c:366
#22 0x000055555611422a in wm_event_do_notifiers (C=C@entry=0x7fffea058188)
    at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_event_system.c:524
- 23 0x000055555610a1b8 in WM_main (C=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm.c:421
- 24 0x00005555560f4d33 in main (argc=1, argv=0x7fffffffdd28) at /home/zed/programmering/blender_master/blender/source/creator/creator.c:505

BT: ``` Thread 1 "blender" received signal SIGSEGV, Segmentation fault. 0x0000000000000000 in ?? () (gdb) bt - 0 0x0000000000000000 in ?? () - 1 0x00007ffff5543cc7 in OpenSubdiv::v3_3_3::Far::TopologyRefiner::~TopologyRefiner (this=0x7fffce80e6a0, __in_chrg=<optimized out>) at /usr/src/debug/media-libs/opensubdiv-3.3.3/OpenSubdiv-3_3_3/opensubdiv/far/topologyRefiner.cpp:73 #2 0x0000555557b78bc1 in OpenSubdiv_TopologyRefinerInternal::~OpenSubdiv_TopologyRefinerInternal (this=<optimized out>, __in_chrg=<optimized out>) at /home/zed/programmering/blender_master/blender/intern/opensubdiv/internal/opensubdiv_topology_refiner_internal.cc:25 #3 0x0000555557b7819a in openSubdiv_deleteTopologyRefiner (topology_refiner=0x7fffccf1ca68) at /home/zed/programmering/blender_master/blender/intern/opensubdiv/internal/opensubdiv_topology_refiner.cc:245 #4 0x00005555569a87a5 in BKE_subdiv_free (subdiv=0x7fffce83f548) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/subdiv.c:201 #5 0x00005555569a9842 in BKE_subdiv_ccg_destroy (subdiv_ccg=0x7fffcd6c00c8) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/subdiv_ccg.c:659 #6 0x0000555556905be1 in BKE_mesh_runtime_clear_geometry (mesh=mesh@entry=0x7fffcf6c7c08) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/mesh_runtime.c:210 #7 0x0000555556905c49 in BKE_mesh_runtime_clear_cache (mesh=mesh@entry=0x7fffcf6c7c08) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/mesh_runtime.c:72 #8 0x00005555568ecc53 in BKE_mesh_free (me=me@entry=0x7fffcf6c7c08) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/mesh.c:464 #9 0x0000555556923c94 in BKE_object_free_derived_caches (ob=ob@entry=0x7fffe3fca408) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/object.c:467 #10 0x0000555556bd5b69 in DEG::deg_restore_object_runtime (object_runtime_backup=0x7fffffffd8a0, object=0x7fffe3fca408) at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:851 #11 DEG::deg_update_copy_on_write_datablock (depsgraph=0x7fffe3fb9b08, id_node=0x7fffd84eae88) at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:956 #12 0x0000555556bd4536 in std::function<void (Depsgraph*)>::operator()(Depsgraph*) const (__args#0=<optimized out>, this=0x7fffd84eac00) at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/bits/std_function.h:682 #13 DEG::deg_task_run_func (pool=0x7fffcc3b6008, taskdata=0x7fffd84eab88, thread_id=0) at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/eval/deg_eval.cc:88 #14 0x0000555556bb5d74 in handle_local_queue (thread_id=0, tls=0x7fffd8677018) at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:417 - 15 BLI_task_pool_work_and_wait (pool=0x7fffcc3b6008) at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:904 - 16 0x0000555556bb5e39 in BLI_task_pool_work_wait_and_reset (pool=pool@entry=0x7fffcc3b6008) at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:925 #17 0x0000555556bd47ab in DEG::deg_evaluate_on_refresh (graph=graph@entry=0x7fffe3fb9b08) at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/eval/deg_eval.cc:317 #18 0x0000555556bc0bc8 in DEG_evaluate_on_refresh (graph=graph@entry=0x7fffe3fb9b08) at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/depsgraph_eval.cc:63 #19 0x000055555696b277 in BKE_scene_graph_update_tagged (depsgraph=depsgraph@entry=0x7fffe3fb9b08, bmain=bmain@entry=0x7fffe9fed608) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/scene.c:1497 #20 0x000055555610d7d8 in wm_event_do_depsgraph (C=C@entry=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_event_system.c:341 #21 0x000055555610d875 in wm_event_do_refresh_wm_and_depsgraph (C=C@entry=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_event_system.c:366 #22 0x000055555611422a in wm_event_do_notifiers (C=C@entry=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_event_system.c:524 - 23 0x000055555610a1b8 in WM_main (C=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm.c:421 - 24 0x00005555560f4d33 in main (argc=1, argv=0x7fffffffdd28) at /home/zed/programmering/blender_master/blender/source/creator/creator.c:505 ```

Sergey Sharybin removed their assignment 2019-02-22 14:02:51 +01:00

Clément Foucault was assigned by Sergey Sharybin

2019-02-22 14:02:51 +01:00

Sergey Sharybin commented

2019-02-22 14:02:51 +01:00

Added subscribers: @fclem, @Sergey

Sergey Sharybin commented

2019-02-22 14:02:51 +01:00

The crash got fixed in 947d78b00b.

However, i've got the following assert:

BLI_assert failed: /home/sergey/Developer/blender/blender/source/blender/draw/intern/draw_cache_impl_mesh.c:3966, DRW_mesh_batch_cache_get_surface_shaded(), at 'gpumat_array_len == cache->mat_len'

@fclem, is it something up to you, or something up to me (if the latter, tell me what :) ?

The crash got fixed in 947d78b00b. However, i've got the following assert: ``` BLI_assert failed: /home/sergey/Developer/blender/blender/source/blender/draw/intern/draw_cache_impl_mesh.c:3966, DRW_mesh_batch_cache_get_surface_shaded(), at 'gpumat_array_len == cache->mat_len' ``` @fclem, is it something up to you, or something up to me (if the latter, tell me what :) ?

Clément Foucault commented

2019-02-22 14:47:14 +01:00

This is because the draw engine request a different number of materials compared to what the draw cache contains.

I think (but might be mistaken) that has something to do with a missing clear of the batch cache.

If the number of material slot changes the mesh cache should be cleared.

This is because the draw engine request a different number of materials compared to what the draw cache contains. I think (but might be mistaken) that has something to do with a missing clear of the batch cache. If the number of material slot changes the mesh cache should be cleared.

Sergey Sharybin commented

2019-02-22 14:57:34 +01:00

@fclem, but if you open the attached file and go to sculpt mode you'll have the same assert. And that assert will not happen if you remove multires modifier.

Not sure why multires is so special and needs extra care about the batch cache.

untitled.blend

@fclem, but if you open the attached file and go to sculpt mode you'll have the same assert. And that assert will not happen if you remove multires modifier. Not sure why multires is so special and needs extra care about the batch cache. [untitled.blend](https://archive.blender.org/developer/F6686909/untitled.blend)

Clément Foucault commented

2019-02-22 16:52:31 +01:00

Ok I found the issue. It was in eevee's code.

blender-admin commented

2019-02-22 17:14:08 +01:00

This issue was referenced by 0ca623362d

This issue was referenced by 0ca623362d5e955f051c6cc5cdd69925248e7f76

Clément Foucault commented

2019-02-22 17:14:31 +01:00

Changed status from 'Open' to: 'Resolved'

Clément Foucault closed this issue

2019-02-22 17:14:31 +01:00

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assign/create a material while in sculpt mode + multiresolution modfier = blender crash #61837