'Object lost data' on copy-pasting #76155

New Issue

Sergey Kritskiy · 2020-04-27T17:50:50+02:00

Sergey Kritskiy commented

2020-04-27 17:50:50 +02:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce RTX 2080 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.75

Blender Version
Broken: version: 2.83 (sub 15), branch: master, commit date: 2020-04-26 22:51, hash: d0d16eb7d3
Worked: 2.82

Short description of error
When Paste command is used, some linked objects sometimes loose data and become Empties or disappear completely. Sometimes only 1-2 objects are removed and I only notice this later when the autosaves were overwritten. This was never an issue on 2.82.

Exact steps for others to reproduce the error

Copy the default cube
Move the cube.
Undo
Paste

There's cube.001 in the scene. camera and light are lost.

Info: Total files 0 | Changed 0 | Failed 0
Info: Copied 1 selected object(s)

Object Camera lost data.
Warning: Warning in console
Object Light lost data.
Warning: Warning in console
Info: 1 object(s) pasted

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce RTX 2080 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.75 **Blender Version** Broken: version: 2.83 (sub 15), branch: master, commit date: 2020-04-26 22:51, hash: `d0d16eb7d3` Worked: 2.82 **Short description of error** When Paste command is used, some linked objects sometimes loose data and become Empties or disappear completely. Sometimes only 1-2 objects are removed and I only notice this later when the autosaves were overwritten. This was never an issue on 2.82. **Exact steps for others to reproduce the error** - Copy the default cube - Move the cube. - Undo - Paste There's cube.001 in the scene. camera and light are lost. ``` Info: Total files 0 | Changed 0 | Failed 0 Info: Copied 1 selected object(s) Object Camera lost data. Warning: Warning in console Object Light lost data. Warning: Warning in console Info: 1 object(s) pasted ```

Sergey Kritskiy commented

2020-04-27 17:50:50 +02:00

Added subscriber: @Sergey-Kritskiy

blender-admin commented

2020-04-27 17:50:50 +02:00

#76202 was marked as duplicate of this issue

Philipp Oeser commented

2020-04-28 13:26:58 +02:00

Added subscribers: @mont29, @lichtwerk

Philipp Oeser commented

2020-04-28 13:26:58 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Philipp Oeser commented

2020-04-28 13:26:58 +02:00

Can confirm, also running into following assert here:

BLI_assert failed: /blender/source/blender/depsgraph/intern/depsgraph_query_iter.cc:215, deg_iterator_objects_step(), at 'DEG::deg_validate_copy_on_write_datablock(&object->id)'

Doesnt seem to be an issue with the Legacy Undo

@mont29: does this ring a bell?

Can confirm, also running into following assert here: ``` BLI_assert failed: /blender/source/blender/depsgraph/intern/depsgraph_query_iter.cc:215, deg_iterator_objects_step(), at 'DEG::deg_validate_copy_on_write_datablock(&object->id)' ``` Doesnt seem to be an issue with the `Legacy Undo` @mont29: does this ring a bell?

Bastien Montagne self-assigned this 2020-04-28 17:45:23 +02:00

Bastien Montagne commented

2020-04-28 17:45:23 +02:00

From the backtrace and error messages below looks like the obdata pointers are lost or corrupted, so indeed almost certainly caused by new undo code. Will check.

<........>
Object Cube.087 lost data.
Warning: Warning in console
Object Cube.088 lost data.
Warning: Warning in console
Object Cube.089 lost data.
Warning: Warning in console
Info: 6 object(s) pasted

=================================================================
==308815==ERROR: AddressSanitizer: heap-use-after-free on address 0x616000641da8 at pc 0x000008237d83 bp 0x7ffc30ac2d50 sp 0x7ffc30ac2d48
READ of size 1 at 0x616000641da8 thread T0
    - 0 0x8237d82 in check_datablock_expanded /home/guest/blender/rc_src/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:501
    - 1 0x8237d82 in foreach_libblock_validate_callback /home/guest/blender/rc_src/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:828
    - 2 0x2f5b5d4 in library_foreach_ID_link /home/guest/blender/rc_src/source/blender/blenkernel/intern/lib_query.c:778
    - 3 0x2f7eeee in BKE_library_foreach_ID_link /home/guest/blender/rc_src/source/blender/blenkernel/intern/lib_query.c:1311
    - 4 0x8239c45 in DEG::deg_validate_copy_on_write_datablock(ID*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:1097
    - 5 0x80fc922 in deg_iterator_objects_step /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_query_iter.cc:215
    - 6 0x80fde5a in DEG_iterator_objects_next /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_query_iter.cc:302
    - 7 0x117dcd45 in stats_update /home/guest/blender/rc_src/source/blender/editors/space_info/info_stats.c:387
    - 8 0x117df767 in ED_info_stats_string /home/guest/blender/rc_src/source/blender/editors/space_info/info_stats.c:593
    - 9 0x59853e1 in rna_Scene_statistics_string_get /home/guest/blender/rc_src/source/blender/makesrna/intern/rna_scene.c:931
    - 10 0x59e7029 in Scene_statistics_call source/blender/makesrna/intern/rna_scene_gen.c:7966
    - 11 0x53fe6c8 in RNA_function_call /home/guest/blender/rc_src/source/blender/makesrna/intern/rna_access.c:7604
    - 12 0x5cd9e3c in pyrna_func_call /home/guest/blender/rc_src/source/blender/python/intern/bpy_rna.c:6326
    - 13 0x7fd934503886 in _PyObject_FastCallKeywords (/lib/x86_64-linux-gnu/libpython3.7m.so.1.0+0x25e886)
    - 14 0x7fd934312fc2  (/lib/x86_64-linux-gnu/libpython3.7m.so.1.0+0x6dfc2)
    - 15 0x7fd934319c41 in _PyEval_EvalFrameDefault (/lib/x86_64-linux-gnu/libpython3.7m.so.1.0+0x74c41)
    - 16 0x7fd93431c94a  (/lib/x86_64-linux-gnu/libpython3.7m.so.1.0+0x7794a)
    - 17 0x7fd934502f97 in _PyFunction_FastCallDict (/lib/x86_64-linux-gnu/libpython3.7m.so.1.0+0x25df97)
    - 18 0x5ce4e3a in bpy_class_call /home/guest/blender/rc_src/source/blender/python/intern/bpy_rna.c:8505
    - 19 0x5b1d907 in header_draw /home/guest/blender/rc_src/source/blender/makesrna/intern/rna_ui.c:702
    - 20 0x5dbcf55 in ED_region_header_layout /home/guest/blender/rc_src/source/blender/editors/screen/area.c:2779
    - 21 0x5d97877 in ED_region_do_layout /home/guest/blender/rc_src/source/blender/editors/screen/area.c:500
    - 22 0x40f6803 in wm_draw_window_offscreen /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_draw.c:644
    - 23 0x40f7f36 in wm_draw_window /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_draw.c:813
    - 24 0x40f93de in wm_draw_update /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_draw.c:1021
    - 25 0x40ea8bd in WM_main /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm.c:456
    - 26 0x2d0a589 in main /home/guest/blender/rc_src/source/creator/creator.c:524
    - 27 0x7fd932113e0a in __libc_start_main ../csu/libc-start.c:308
    #28 0x2d09759 in _start (/home/guest/blender/build_rc_debug/bin/blender+0x2d09759)

0x616000641da8 is located 40 bytes inside of 568-byte region [0x616000641d80,0x616000641fb8)
freed by thread T0 here:
    - 0 0x7fd937305277 in __interceptor_free (/lib/x86_64-linux-gnu/libasan.so.5+0x107277)
    - 1 0x14557064 in MEM_lockfree_freeN /home/guest/blender/rc_src/intern/guardedalloc/intern/mallocn_lockfree_impl.c:157
    - 2 0x812e023 in free_copy_on_write_datablock /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:130
    - 3 0x1425c646 in ghash_free_cb /home/guest/blender/rc_src/source/blender/blenlib/intern/BLI_ghash.c:650
    - 4 0x142629cf in BLI_ghash_free /home/guest/blender/rc_src/source/blender/blenlib/intern/BLI_ghash.c:1023
    - 5 0x812ecf9 in DEG::DepsgraphNodeBuilder::~DepsgraphNodeBuilder() /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:158
    - 6 0x80cbc92 in DEG_graph_build_from_view_layer /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_build.cc:245
    - 7 0x80d060c in DEG_graph_relations_update /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_build.cc:499
    - 8 0x33a6858 in scene_graph_update_tagged /home/guest/blender/rc_src/source/blender/blenkernel/intern/scene.c:1311
    - 9 0x33a698a in BKE_scene_graph_update_tagged /home/guest/blender/rc_src/source/blender/blenkernel/intern/scene.c:1358
    - 10 0x40fc72b in wm_event_do_depsgraph /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:359
    - 11 0x40fca7a in wm_event_do_refresh_wm_and_depsgraph /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:385
    - 12 0x40fe9d5 in wm_event_do_notifiers /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:550
    - 13 0x40ea8b1 in WM_main /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm.c:453
    - 14 0x2d0a589 in main /home/guest/blender/rc_src/source/creator/creator.c:524
    - 15 0x7fd932113e0a in __libc_start_main ../csu/libc-start.c:308

previously allocated by thread T0 here:
    - 0 0x7fd93730580e in calloc (/lib/x86_64-linux-gnu/libasan.so.5+0x10780e)
    - 1 0x145577b3 in MEM_lockfree_callocN /home/guest/blender/rc_src/intern/guardedalloc/intern/mallocn_lockfree_impl.c:267
    - 2 0x2f12391 in BKE_libblock_alloc_notest /home/guest/blender/rc_src/source/blender/blenkernel/intern/lib_id.c:989
    - 3 0x80b7c3e in DEG::IDNode::init_copy_on_write(ID*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/node/deg_node_id.cc:139
    - 4 0x80c1701 in DEG::Depsgraph::add_id_node(ID*, ID*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph.cc:130
    - 5 0x812f5fa in DEG::DepsgraphNodeBuilder::add_id_node(ID*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:178
    - 6 0x814667b in DEG::DepsgraphNodeBuilder::build_parameters(ID*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:1036
    - 7 0x8152d5a in DEG::DepsgraphNodeBuilder::build_camera(Camera*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:1435
    - 8 0x813fa46 in DEG::DepsgraphNodeBuilder::build_object_data_camera(Object*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:783
    - 9 0x813f028 in DEG::DepsgraphNodeBuilder::build_object_data(Object*, bool) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:756
    - 10 0x813beb1 in DEG::DepsgraphNodeBuilder::build_object(int, Object*, DEG::eDepsNode_LinkedState_Type, bool) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:643
    - 11 0x81a5eae in DEG::DepsgraphNodeBuilder::build_view_layer(Scene*, ViewLayer*, DEG::eDepsNode_LinkedState_Type) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes_view_layer.cc:118
    - 12 0x80cb662 in DEG_graph_build_from_view_layer /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_build.cc:247
    - 13 0x80d060c in DEG_graph_relations_update /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_build.cc:499
    - 14 0x40fc6e5 in wm_event_do_depsgraph /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:355
    - 15 0x4135b56 in wm_file_read_post /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_files.c:561
    - 16 0x413689b in WM_file_read /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_files.c:683
    - 17 0x4141941 in wm_file_read_opwrap /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_files.c:2110
    - 18 0x4142c05 in wm_open_mainfile__open /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_files.c:2252
    - 19 0x4142eb0 in wm_open_mainfile_exec /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_files.c:2288
    - 20 0x410ffb0 in wm_handler_fileselect_do /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:2275
    - 21 0x4111776 in wm_handler_fileselect_call /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:2373
    - 22 0x41163b4 in wm_handlers_do_intern /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:2784
    - 23 0x4116704 in wm_handlers_do /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:2836
    - 24 0x411bd13 in wm_event_do_handlers /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:3231
    - 25 0x40ea8a5 in WM_main /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm.c:450
    - 26 0x2d0a589 in main /home/guest/blender/rc_src/source/creator/creator.c:524
    - 27 0x7fd932113e0a in __libc_start_main ../csu/libc-start.c:308

SUMMARY: AddressSanitizer: heap-use-after-free /home/guest/blender/rc_src/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:501 in check_datablock_expanded
Shadow bytes around the buggy address:
  0x0c2c800c0360: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c2c800c0370: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c2c800c0380: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c2c800c0390: fd fd fd fd fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c2c800c03a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c2c800c03b0: fd fd fd fd fd[fd]fd fd fd fd fd fd fd fd fd fd
  0x0c2c800c03c0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c2c800c03d0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c2c800c03e0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c2c800c03f0: fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa fa
  0x0c2c800c0400: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==308815==ABORTING

From the backtrace and error messages below looks like the obdata pointers are lost or corrupted, so indeed almost certainly caused by new undo code. Will check. ```lines=20 <........> Object Cube.087 lost data. Warning: Warning in console Object Cube.088 lost data. Warning: Warning in console Object Cube.089 lost data. Warning: Warning in console Info: 6 object(s) pasted ================================================================= ==308815==ERROR: AddressSanitizer: heap-use-after-free on address 0x616000641da8 at pc 0x000008237d83 bp 0x7ffc30ac2d50 sp 0x7ffc30ac2d48 READ of size 1 at 0x616000641da8 thread T0 - 0 0x8237d82 in check_datablock_expanded /home/guest/blender/rc_src/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:501 - 1 0x8237d82 in foreach_libblock_validate_callback /home/guest/blender/rc_src/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:828 - 2 0x2f5b5d4 in library_foreach_ID_link /home/guest/blender/rc_src/source/blender/blenkernel/intern/lib_query.c:778 - 3 0x2f7eeee in BKE_library_foreach_ID_link /home/guest/blender/rc_src/source/blender/blenkernel/intern/lib_query.c:1311 - 4 0x8239c45 in DEG::deg_validate_copy_on_write_datablock(ID*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:1097 - 5 0x80fc922 in deg_iterator_objects_step /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_query_iter.cc:215 - 6 0x80fde5a in DEG_iterator_objects_next /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_query_iter.cc:302 - 7 0x117dcd45 in stats_update /home/guest/blender/rc_src/source/blender/editors/space_info/info_stats.c:387 - 8 0x117df767 in ED_info_stats_string /home/guest/blender/rc_src/source/blender/editors/space_info/info_stats.c:593 - 9 0x59853e1 in rna_Scene_statistics_string_get /home/guest/blender/rc_src/source/blender/makesrna/intern/rna_scene.c:931 - 10 0x59e7029 in Scene_statistics_call source/blender/makesrna/intern/rna_scene_gen.c:7966 - 11 0x53fe6c8 in RNA_function_call /home/guest/blender/rc_src/source/blender/makesrna/intern/rna_access.c:7604 - 12 0x5cd9e3c in pyrna_func_call /home/guest/blender/rc_src/source/blender/python/intern/bpy_rna.c:6326 - 13 0x7fd934503886 in _PyObject_FastCallKeywords (/lib/x86_64-linux-gnu/libpython3.7m.so.1.0+0x25e886) - 14 0x7fd934312fc2 (/lib/x86_64-linux-gnu/libpython3.7m.so.1.0+0x6dfc2) - 15 0x7fd934319c41 in _PyEval_EvalFrameDefault (/lib/x86_64-linux-gnu/libpython3.7m.so.1.0+0x74c41) - 16 0x7fd93431c94a (/lib/x86_64-linux-gnu/libpython3.7m.so.1.0+0x7794a) - 17 0x7fd934502f97 in _PyFunction_FastCallDict (/lib/x86_64-linux-gnu/libpython3.7m.so.1.0+0x25df97) - 18 0x5ce4e3a in bpy_class_call /home/guest/blender/rc_src/source/blender/python/intern/bpy_rna.c:8505 - 19 0x5b1d907 in header_draw /home/guest/blender/rc_src/source/blender/makesrna/intern/rna_ui.c:702 - 20 0x5dbcf55 in ED_region_header_layout /home/guest/blender/rc_src/source/blender/editors/screen/area.c:2779 - 21 0x5d97877 in ED_region_do_layout /home/guest/blender/rc_src/source/blender/editors/screen/area.c:500 - 22 0x40f6803 in wm_draw_window_offscreen /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_draw.c:644 - 23 0x40f7f36 in wm_draw_window /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_draw.c:813 - 24 0x40f93de in wm_draw_update /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_draw.c:1021 - 25 0x40ea8bd in WM_main /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm.c:456 - 26 0x2d0a589 in main /home/guest/blender/rc_src/source/creator/creator.c:524 - 27 0x7fd932113e0a in __libc_start_main ../csu/libc-start.c:308 #28 0x2d09759 in _start (/home/guest/blender/build_rc_debug/bin/blender+0x2d09759) 0x616000641da8 is located 40 bytes inside of 568-byte region [0x616000641d80,0x616000641fb8) freed by thread T0 here: - 0 0x7fd937305277 in __interceptor_free (/lib/x86_64-linux-gnu/libasan.so.5+0x107277) - 1 0x14557064 in MEM_lockfree_freeN /home/guest/blender/rc_src/intern/guardedalloc/intern/mallocn_lockfree_impl.c:157 - 2 0x812e023 in free_copy_on_write_datablock /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:130 - 3 0x1425c646 in ghash_free_cb /home/guest/blender/rc_src/source/blender/blenlib/intern/BLI_ghash.c:650 - 4 0x142629cf in BLI_ghash_free /home/guest/blender/rc_src/source/blender/blenlib/intern/BLI_ghash.c:1023 - 5 0x812ecf9 in DEG::DepsgraphNodeBuilder::~DepsgraphNodeBuilder() /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:158 - 6 0x80cbc92 in DEG_graph_build_from_view_layer /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_build.cc:245 - 7 0x80d060c in DEG_graph_relations_update /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_build.cc:499 - 8 0x33a6858 in scene_graph_update_tagged /home/guest/blender/rc_src/source/blender/blenkernel/intern/scene.c:1311 - 9 0x33a698a in BKE_scene_graph_update_tagged /home/guest/blender/rc_src/source/blender/blenkernel/intern/scene.c:1358 - 10 0x40fc72b in wm_event_do_depsgraph /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:359 - 11 0x40fca7a in wm_event_do_refresh_wm_and_depsgraph /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:385 - 12 0x40fe9d5 in wm_event_do_notifiers /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:550 - 13 0x40ea8b1 in WM_main /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm.c:453 - 14 0x2d0a589 in main /home/guest/blender/rc_src/source/creator/creator.c:524 - 15 0x7fd932113e0a in __libc_start_main ../csu/libc-start.c:308 previously allocated by thread T0 here: - 0 0x7fd93730580e in calloc (/lib/x86_64-linux-gnu/libasan.so.5+0x10780e) - 1 0x145577b3 in MEM_lockfree_callocN /home/guest/blender/rc_src/intern/guardedalloc/intern/mallocn_lockfree_impl.c:267 - 2 0x2f12391 in BKE_libblock_alloc_notest /home/guest/blender/rc_src/source/blender/blenkernel/intern/lib_id.c:989 - 3 0x80b7c3e in DEG::IDNode::init_copy_on_write(ID*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/node/deg_node_id.cc:139 - 4 0x80c1701 in DEG::Depsgraph::add_id_node(ID*, ID*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph.cc:130 - 5 0x812f5fa in DEG::DepsgraphNodeBuilder::add_id_node(ID*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:178 - 6 0x814667b in DEG::DepsgraphNodeBuilder::build_parameters(ID*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:1036 - 7 0x8152d5a in DEG::DepsgraphNodeBuilder::build_camera(Camera*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:1435 - 8 0x813fa46 in DEG::DepsgraphNodeBuilder::build_object_data_camera(Object*) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:783 - 9 0x813f028 in DEG::DepsgraphNodeBuilder::build_object_data(Object*, bool) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:756 - 10 0x813beb1 in DEG::DepsgraphNodeBuilder::build_object(int, Object*, DEG::eDepsNode_LinkedState_Type, bool) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:643 - 11 0x81a5eae in DEG::DepsgraphNodeBuilder::build_view_layer(Scene*, ViewLayer*, DEG::eDepsNode_LinkedState_Type) /home/guest/blender/rc_src/source/blender/depsgraph/intern/builder/deg_builder_nodes_view_layer.cc:118 - 12 0x80cb662 in DEG_graph_build_from_view_layer /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_build.cc:247 - 13 0x80d060c in DEG_graph_relations_update /home/guest/blender/rc_src/source/blender/depsgraph/intern/depsgraph_build.cc:499 - 14 0x40fc6e5 in wm_event_do_depsgraph /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:355 - 15 0x4135b56 in wm_file_read_post /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_files.c:561 - 16 0x413689b in WM_file_read /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_files.c:683 - 17 0x4141941 in wm_file_read_opwrap /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_files.c:2110 - 18 0x4142c05 in wm_open_mainfile__open /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_files.c:2252 - 19 0x4142eb0 in wm_open_mainfile_exec /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_files.c:2288 - 20 0x410ffb0 in wm_handler_fileselect_do /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:2275 - 21 0x4111776 in wm_handler_fileselect_call /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:2373 - 22 0x41163b4 in wm_handlers_do_intern /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:2784 - 23 0x4116704 in wm_handlers_do /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:2836 - 24 0x411bd13 in wm_event_do_handlers /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm_event_system.c:3231 - 25 0x40ea8a5 in WM_main /home/guest/blender/rc_src/source/blender/windowmanager/intern/wm.c:450 - 26 0x2d0a589 in main /home/guest/blender/rc_src/source/creator/creator.c:524 - 27 0x7fd932113e0a in __libc_start_main ../csu/libc-start.c:308 SUMMARY: AddressSanitizer: heap-use-after-free /home/guest/blender/rc_src/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc:501 in check_datablock_expanded Shadow bytes around the buggy address: 0x0c2c800c0360: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2c800c0370: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2c800c0380: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2c800c0390: fd fd fd fd fa fa fa fa fa fa fa fa fa fa fa fa 0x0c2c800c03a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa =>0x0c2c800c03b0: fd fd fd fd fd[fd]fd fd fd fd fd fd fd fd fd fd 0x0c2c800c03c0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2c800c03d0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2c800c03e0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c2c800c03f0: fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa fa 0x0c2c800c0400: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb Shadow gap: cc ==308815==ABORTING ```

Ankit Meel commented

2020-04-29 08:07:20 +02:00

Added subscriber: @MarcinTwarowski

Ankit Meel commented

2020-04-29 08:07:57 +02:00

Added subscriber: @ankitm

Bastien Montagne commented

2020-04-29 18:11:08 +02:00

Uh, small tiny stupid mistake in new undo code, that was basically potentially breaking any link/append operation (copy/pasting data-blocks relies on ID linking code under the hood). Luckily fix is trivial, commit incoming.

blender-admin commented

2020-04-29 18:11:33 +02:00

This issue was referenced by a54c1f1e77

This issue was referenced by a54c1f1e77147352dfab1233ef63307e87e9f09c

Bastien Montagne commented

2020-04-29 21:38:06 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Bastien Montagne closed this issue

2020-04-29 21:38:06 +02:00

Thomas Dinges added this to the 2.83 LTS milestone 2023-02-08 16:38:04 +01:00

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'Object lost data' on copy-pasting #76155