Random crashes with mathutils.Vector #58240

New Issue

Diego Gangl · 2018-11-30T00:44:38+01:00

Diego Gangl commented

2018-11-30 00:44:38 +01:00

System Information
Operating system: Linux 4.19 / Fedora 29
Graphics card: AMD Vega rx 56 (AMDGPU/Mesa 13.2)

Blender Version
Broken: 2.80 Beta (26d5a3625e)
Worked: 2.79b

Short description of error

Vector is making Blender segfault at random times.

Exact steps for others to reproduce the error
script_bug_test.blend

Open the blend file above.
Click "Run Script"
Blender is dead

Blender dies after a few loops in the line Vector((scaled_x, scaled_y, 0)). But this bug also has a funny behaviour: if you use Blender for a while and do some stuff (like moving the default cube) it can loop without crashing a bit longer.

Here's the Backtrace:

# Blender 2.80 (sub 35), Commit date: 2018-11-29 15:57, Hash 26d5a3625ed

# backtrace
/home/januz/bin/blender_28/blender(BLI_system_backtrace+0x1d) [0x1b807ad]
/home/januz/bin/blender_28/blender() [0x114e679]
/lib64/libc.so.6(+0x385c0) [0x7f18984c05c0]
/home/januz/bin/blender_28/blender(PyObject_GC_Del+0x23) [0x305b0f3]
/home/januz/bin/blender_28/blender(_PyEval_EvalFrameDefault+0x418e) [0x1145d3e]
/home/januz/bin/blender_28/blender(_PyEval_EvalCodeWithName+0xae3) [0x3005883]
/home/januz/bin/blender_28/blender(PyEval_EvalCodeEx+0x3e) [0x30059de]
/home/januz/bin/blender_28/blender(PyEval_EvalCode+0x1b) [0x3005a0b]
/home/januz/bin/blender_28/blender() [0x14eba98]
/home/januz/bin/blender_28/blender() [0x121bf2e]
/home/januz/bin/blender_28/blender() [0x115373b]
/home/januz/bin/blender_28/blender() [0x11539d7]
/home/januz/bin/blender_28/blender(WM_operator_name_call_ptr+0x1a) [0x1153dca]
/home/januz/bin/blender_28/blender() [0x12fd352]
/home/januz/bin/blender_28/blender() [0x130ddac]
/home/januz/bin/blender_28/blender() [0x1156bbb]
/home/januz/bin/blender_28/blender() [0x115743c]
/home/januz/bin/blender_28/blender(wm_event_do_handlers+0x230) [0x1157aa0]
/home/januz/bin/blender_28/blender(WM_main+0x20) [0x114f080]
/home/januz/bin/blender_28/blender(main+0x31e) [0x10b4ece]
/lib64/libc.so.6(__libc_start_main+0xf3) [0x7f18984ac413]
/home/januz/bin/blender_28/blender(_start+0x2a) [0x114b17a]

**System Information** Operating system: Linux 4.19 / Fedora 29 Graphics card: AMD Vega rx 56 (AMDGPU/Mesa 13.2) **Blender Version** Broken: 2.80 Beta (26d5a3625ed) Worked: 2.79b **Short description of error** Vector is making Blender segfault at random times. **Exact steps for others to reproduce the error** [script_bug_test.blend](https://archive.blender.org/developer/F5761007/script_bug_test.blend) 1. Open the blend file above. 2. Click "Run Script" 3. Blender is dead Blender dies after a few loops in the line `Vector((scaled_x, scaled_y, 0))`. But this bug also has a funny behaviour: if you use Blender for a while and do some stuff (like moving the default cube) it can loop without crashing a bit longer. Here's the Backtrace: ``` # Blender 2.80 (sub 35), Commit date: 2018-11-29 15:57, Hash 26d5a3625ed # backtrace /home/januz/bin/blender_28/blender(BLI_system_backtrace+0x1d) [0x1b807ad] /home/januz/bin/blender_28/blender() [0x114e679] /lib64/libc.so.6(+0x385c0) [0x7f18984c05c0] /home/januz/bin/blender_28/blender(PyObject_GC_Del+0x23) [0x305b0f3] /home/januz/bin/blender_28/blender(_PyEval_EvalFrameDefault+0x418e) [0x1145d3e] /home/januz/bin/blender_28/blender(_PyEval_EvalCodeWithName+0xae3) [0x3005883] /home/januz/bin/blender_28/blender(PyEval_EvalCodeEx+0x3e) [0x30059de] /home/januz/bin/blender_28/blender(PyEval_EvalCode+0x1b) [0x3005a0b] /home/januz/bin/blender_28/blender() [0x14eba98] /home/januz/bin/blender_28/blender() [0x121bf2e] /home/januz/bin/blender_28/blender() [0x115373b] /home/januz/bin/blender_28/blender() [0x11539d7] /home/januz/bin/blender_28/blender(WM_operator_name_call_ptr+0x1a) [0x1153dca] /home/januz/bin/blender_28/blender() [0x12fd352] /home/januz/bin/blender_28/blender() [0x130ddac] /home/januz/bin/blender_28/blender() [0x1156bbb] /home/januz/bin/blender_28/blender() [0x115743c] /home/januz/bin/blender_28/blender(wm_event_do_handlers+0x230) [0x1157aa0] /home/januz/bin/blender_28/blender(WM_main+0x20) [0x114f080] /home/januz/bin/blender_28/blender(main+0x31e) [0x10b4ece] /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f18984ac413] /home/januz/bin/blender_28/blender(_start+0x2a) [0x114b17a] ```

Diego Gangl commented

2018-11-30 00:44:38 +01:00

Added subscriber: @Januz