Regression: Crash after moving NLA action strips #98795

New Issue

Georg K · 2022-06-11T16:57:07+02:00

Georg K commented

2022-06-11 16:57:07 +02:00

System Information
Operating system: Linux-5.17.9-1-MANJARO-x86_64-with-glibc2.35 64 Bits
Graphics card: AMD VERDE (LLVM 13.0.1, DRM 2.50, 5.17.9-1-MANJARO) AMD 4.5 (Core Profile) Mesa 22.0.4

Blender Version
Broken: version: 3.2.0, 3.3.0 Alpha, branch: master, commit date: 2022-06-08 11:15, hash: 7a751327fa
Worked: 2.91.2, 2.93.0, 3.1.2
Caused by 63cf0d0890

Short description of error
If you try to move NLA strips, Blender crashes, no matter if they are linked or local.
My initial assumption was that the crash requires them to be linked, but that was false. So while I attached both files, "... destination" isn't strictly required for the crash, but if you try it there, it also crashes.

Exact steps for others to reproduce the error
[only in case of "CRASH NLA - Source.blend": push the action down, duplicate it at least two times on the same NLA track, distance does not matter]

Open CRASH NLA - destination.blend
select all three action strips,
Move them with mouse drag or {key G} key
Blender crashes.

CRASH NLA - Source.blend
CRASH NLA - destination.blend

Blender 3.2.0, Commit date: 2022-06-08 10:22, Hash e05e1e369187
bpy.ops.action.push_down()  # Operator
bpy.ops.nla.duplicate(linked=False, mode='TRANSLATION')  # Operator
bpy.ops.transform.transform(mode='TRANSLATION', value=(20.5877, -105.42, 0, 0), orient_axis='Z', orient_type='GLOBAL', orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)), orient_matrix_type='GLOBAL', mirror=False, use_proportional_edit=Fa>
bpy.ops.nla.duplicate(linked=False, mode='TRANSLATION')  # Operator
bpy.ops.transform.transform(mode='TRANSLATION', value=(31.6585, -54.216, 0, 0), orient_axis='Z', orient_type='GLOBAL', orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)), orient_matrix_type='GLOBAL', mirror=False, use_proportional_edit=Fa>
bpy.ops.transform.transform(mode='TRANSLATION', value=(-11.0708, 5.02, 0, 0), orient_axis='Z', orient_type='GLOBAL', orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)), orient_matrix_type='GLOBAL', mirror=False, use_proportional_edit=Fals>
bpy.ops.nla.select_box(tweak=True, xmin=46, xmax=476, ymin=79, ymax=191, mode='SET')  # Operator

backtrace
./blender(BLI_system_backtrace+0x20) [0xc1491e0]
./blender() [0x11d8e2a]
/usr/lib/libc.so.6(+0x3e8e0) [0x7ff8ed08f8e0]
./blender() [0x12760bf]
./blender() [0x12760f2]
./blender(BKE_nla_tracks_copy_from_adt+0x53) [0x12767c3]
./blender(BKE_animdata_copy+0x57) [0x158c467]
./blender(BKE_libblock_copy_ex+0x1b3) [0x1243883]
./blender(BKE_id_copy_ex+0x73) [0x1243903]
./blender(_ZN7blender3deg34deg_update_copy_on_write_datablockEPKNS0_9DepsgraphEPKNS0_6IDNodeE+0x179) [0x1913399]
./blender() [0x1912382]
./blender() [0x1912552]
./blender() [0xc14cf5d]
./blender() [0x1795125]
./blender() [0x17953db]
./blender(BLI_task_pool_work_and_wait+0xaa) [0xc14cd6a]
./blender(_ZN7blender3deg23deg_evaluate_on_refreshEPNS0_9DepsgraphE+0x1c2) [0x19128e2]
./blender() [0x12ee344]
./blender(wm_event_do_depsgraph+0xab) [0x179faab]
./blender(wm_event_do_refresh_wm_and_depsgraph+0x87) [0x179fbe7]
./blender(wm_event_do_notifiers+0x3f0) [0x17a71a0]
./blender(WM_main+0x28) [0x179aa38]
./blender(main+0x322) [0x10d47e2]
/usr/lib/libc.so.6(+0x29290) [0x7ff8ed07a290]
/usr/lib/libc.so.6(__libc_start_main+0x8a) [0x7ff8ed07a34a]
./blender() [0x11d570c]

Python backtrace

**System Information** Operating system: Linux-5.17.9-1-MANJARO-x86_64-with-glibc2.35 64 Bits Graphics card: AMD VERDE (LLVM 13.0.1, DRM 2.50, 5.17.9-1-MANJARO) AMD 4.5 (Core Profile) Mesa 22.0.4 **Blender Version** Broken: version: 3.2.0, 3.3.0 Alpha, branch: master, commit date: 2022-06-08 11:15, hash: `7a751327fa` Worked: 2.91.2, 2.93.0, 3.1.2 Caused by 63cf0d0890 **Short description of error** If you try to move NLA strips, Blender crashes, no matter if they are linked or local. My initial assumption was that the crash requires them to be linked, but that was false. So while I attached both files, "... destination" isn't strictly required for the crash, but if you try it there, it also crashes. **Exact steps for others to reproduce the error** [only in case of "CRASH NLA - Source.blend": push the action down, duplicate it at least two times on the same NLA track, distance does not matter] - Open `CRASH NLA - destination.blend` - select all three action strips, - Move them with mouse drag or {key G} key - Blender crashes. [CRASH NLA - Source.blend](https://archive.blender.org/developer/F13145905/CRASH_NLA_-_Source.blend) [CRASH NLA - destination.blend](https://archive.blender.org/developer/F13145906/CRASH_NLA_-_destination.blend) ```lines=10 Blender 3.2.0, Commit date: 2022-06-08 10:22, Hash e05e1e369187 bpy.ops.action.push_down() # Operator bpy.ops.nla.duplicate(linked=False, mode='TRANSLATION') # Operator bpy.ops.transform.transform(mode='TRANSLATION', value=(20.5877, -105.42, 0, 0), orient_axis='Z', orient_type='GLOBAL', orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)), orient_matrix_type='GLOBAL', mirror=False, use_proportional_edit=Fa> bpy.ops.nla.duplicate(linked=False, mode='TRANSLATION') # Operator bpy.ops.transform.transform(mode='TRANSLATION', value=(31.6585, -54.216, 0, 0), orient_axis='Z', orient_type='GLOBAL', orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)), orient_matrix_type='GLOBAL', mirror=False, use_proportional_edit=Fa> bpy.ops.transform.transform(mode='TRANSLATION', value=(-11.0708, 5.02, 0, 0), orient_axis='Z', orient_type='GLOBAL', orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)), orient_matrix_type='GLOBAL', mirror=False, use_proportional_edit=Fals> bpy.ops.nla.select_box(tweak=True, xmin=46, xmax=476, ymin=79, ymax=191, mode='SET') # Operator backtrace ./blender(BLI_system_backtrace+0x20) [0xc1491e0] ./blender() [0x11d8e2a] /usr/lib/libc.so.6(+0x3e8e0) [0x7ff8ed08f8e0] ./blender() [0x12760bf] ./blender() [0x12760f2] ./blender(BKE_nla_tracks_copy_from_adt+0x53) [0x12767c3] ./blender(BKE_animdata_copy+0x57) [0x158c467] ./blender(BKE_libblock_copy_ex+0x1b3) [0x1243883] ./blender(BKE_id_copy_ex+0x73) [0x1243903] ./blender(_ZN7blender3deg34deg_update_copy_on_write_datablockEPKNS0_9DepsgraphEPKNS0_6IDNodeE+0x179) [0x1913399] ./blender() [0x1912382] ./blender() [0x1912552] ./blender() [0xc14cf5d] ./blender() [0x1795125] ./blender() [0x17953db] ./blender(BLI_task_pool_work_and_wait+0xaa) [0xc14cd6a] ./blender(_ZN7blender3deg23deg_evaluate_on_refreshEPNS0_9DepsgraphE+0x1c2) [0x19128e2] ./blender() [0x12ee344] ./blender(wm_event_do_depsgraph+0xab) [0x179faab] ./blender(wm_event_do_refresh_wm_and_depsgraph+0x87) [0x179fbe7] ./blender(wm_event_do_notifiers+0x3f0) [0x17a71a0] ./blender(WM_main+0x28) [0x179aa38] ./blender(main+0x322) [0x10d47e2] /usr/lib/libc.so.6(+0x29290) [0x7ff8ed07a290] /usr/lib/libc.so.6(__libc_start_main+0x8a) [0x7ff8ed07a34a] ./blender() [0x11d570c] Python backtrace ```

Georg K commented

2022-06-11 16:57:07 +02:00

Added subscriber: @georgK

Pratik Borhade commented

2022-06-11 18:46:48 +02:00

Added subscribers: @dr.sybren, @PratikPB2123

Pratik Borhade commented

2022-06-11 18:46:48 +02:00

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

Pratik Borhade commented

2022-06-11 18:46:48 +02:00

Hi, thanks for the report. I can confirm the crash.
Root cause of this and #98700 could be same (Crash occurs on the same line): https://developer.blender.org/diffusion/B/browse/master/source/blender/blenkernel/intern/nla.c$263
cc @dr.sybren

Hi, thanks for the report. I can confirm the crash. Root cause of this and #98700 could be same (Crash occurs on the same line): https://developer.blender.org/diffusion/B/browse/master/source/blender/blenkernel/intern/nla.c$263 cc @dr.sybren

Pratik Borhade changed title from ~~Crash moving 2 NLA action strips on the same track~~ to Regression: Crash after moving NLA action strips

2022-06-11 18:50:44 +02:00

Kevin Curry commented

2022-06-13 15:53:02 +02:00

Added subscriber: @KevinCurry_Unity

Sybren A. Stüvel self-assigned this 2022-06-14 13:11:19 +02:00

Sybren A. Stüvel commented

2022-06-14 16:18:06 +02:00

This is the same issue as #98700 (Regression: Crash when recursively nesting NLA meta strips); when moving NLA strips the transform system turns them into a meta-strip, which then turns this issue into that one.

Sybren A. Stüvel commented

2022-06-14 16:18:35 +02:00

Closed as duplicate of #98700

Sybren A. Stüvel closed this issue

2022-06-14 16:18:35 +02:00

Adam Janz commented

2022-06-14 18:25:04 +02:00

Added subscriber: @AdamJanz

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Regression: Crash after moving NLA action strips #98795