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Maniphest T61104

Compositing two scenes with different output scales crashes blender
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Description

System Information
Operating system: Windows 7
Graphics card: GTX 480

Blender Version
Broken: 2.80 (sub 43), branch: blender2.7, commit date: 2019-02-01 01:46, hash: 552b2287db86

Short description of error
When two different scenes with different percentage scales are composited together, blender crashes.

Exact steps for others to reproduce the error

  1. Open blender
  2. Create new scene (through full copy)(Referred to as Scene B)
  3. Go back to the first scene (Scene A)
  4. Go to the compositor and enable nodes
  5. Duplicate Render Layers node, change linked scene to Scene B
  6. Change Scene A render scale percentage in the output tab
  7. Hit F12

Revisions and Commits

rB Blender
rBce09b93955de Fix T61104 Compositing two scenes with different output scales crashes

Event Timeline

rndmnm created this task.Feb 1 2019, 5:56 PM
Sebastian Parborg (zeddb) assigned this task to Clément Foucault (fclem).Feb 1 2019, 6:19 PM
Sebastian Parborg (zeddb) lowered the priority of this task from 90 to 50.
Sebastian Parborg (zeddb) added subscribers: Clément Foucault (fclem), Sebastian Parborg (zeddb).

Backtrace:

Thread 52 "blender" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffc9ffb700 (LWP 18255)]
0x00007ffff3078ff4 in __memcpy_ssse3 () from /lib64/libc.so.6
(gdb) bt
#0  0x00007ffff3078ff4 in __memcpy_ssse3 () from /lib64/libc.so.6
#1  0x00007fffe2bfae5d in _mesa_readpixels () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fffe2ceaf0c in st_ReadPixels () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fffe2bfb747 in _mesa_ReadnPixelsARB () from /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fffe2bfbb32 in _mesa_ReadPixels () from /usr/lib64/dri/radeonsi_dri.so
#5  0x0000555557d60bd2 in GPU_framebuffer_read_color (fb=0x7fffccb6aca8, x=0, y=0, w=1920, h=1080, channels=4, slot=0, data=0x7fffc7c00008)
    at /home/zed/programmering/blender_master/blender/source/blender/gpu/intern/gpu_framebuffer.c:616
#6  0x0000555557df7ed2 in eevee_render_result_combined (rl=0x7fffcfa3dcc8, viewname=0x7fffcc843378 "", rect=0x7fffc9ffa510, vedata=0x7fffcc84a308,
    UNUSED_sldata=0x7fffcca4d608) at /home/zed/programmering/blender_master/blender/source/blender/draw/engines/eevee/eevee_render.c:207
#7  0x0000555557df9784 in EEVEE_render_draw (vedata=0x7fffcc84a308, engine=0x7fffcca4d308, rl=0x7fffcfa3dcc8, rect=0x7fffc9ffa510)
    at /home/zed/programmering/blender_master/blender/source/blender/draw/engines/eevee/eevee_render.c:596
#8  0x0000555557ddfec0 in eevee_render_to_image (vedata=0x7fffcc84a308, engine=0x7fffcca4d308, render_layer=0x7fffcfa3dcc8, rect=0x7fffc9ffa510)
    at /home/zed/programmering/blender_master/blender/source/blender/draw/engines/eevee/eevee_engine.c:420
#9  0x0000555557db0842 in DRW_render_to_image (engine=0x7fffcca4d308, depsgraph=0x7fffcc83e508)
    at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_manager.c:1877
#10 0x00005555577e082e in RE_engine_render (re=0x7fffcc842008, do_all=0)
    at /home/zed/programmering/blender_master/blender/source/blender/render/intern/source/external_engine.c:735
#11 0x00005555577e876f in do_render_3d (re=0x7fffcc842008)
    at /home/zed/programmering/blender_master/blender/source/blender/render/intern/source/pipeline.c:1080
#12 0x00005555577e8a83 in do_render (re=0x7fffcc842008) at /home/zed/programmering/blender_master/blender/source/blender/render/intern/source/pipeline.c:1156
#13 0x00005555577e8c3e in render_scene (re=0x7fffcd696008, sce=0x7fffcf9f0008, cfra=1)
    at /home/zed/programmering/blender_master/blender/source/blender/render/intern/source/pipeline.c:1201
#14 0x00005555577e8e55 in ntree_render_scenes (re=0x7fffcd696008)
    at /home/zed/programmering/blender_master/blender/source/blender/render/intern/source/pipeline.c:1250
#15 0x00005555577e93c9 in do_render_composite (re=0x7fffcd696008)
    at /home/zed/programmering/blender_master/blender/source/blender/render/intern/source/pipeline.c:1399
#16 0x00005555577e9f98 in do_render_all_options (re=0x7fffcd696008)
    at /home/zed/programmering/blender_master/blender/source/blender/render/intern/source/pipeline.c:1629
#17 0x00005555577eaf1d in RE_BlenderFrame (re=0x7fffcd696008, bmain=0x7fffcfc48408, scene=0x7fffe53e5008, single_layer=0x0, camera_override=0x0, frame=1,
    write_still=false) at /home/zed/programmering/blender_master/blender/source/blender/render/intern/source/pipeline.c:1983
#18 0x00005555576e17b7 in render_startjob (rjv=0x7fffcd39ce88, stop=0x7fffcd751d3c, do_update=0x7fffcd751d3a, progress=0x7fffcd751d40)
    at /home/zed/programmering/blender_master/blender/source/blender/editors/render/render_internal.c:614
#19 0x00005555570ff396 in do_job_thread (job_v=0x7fffcd751cc8)
    at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_jobs.c:330
#20 0x00005555585440f4 in tslot_thread_start (tslot_p=0x7fffcc029448)
    at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/threads.c:251
#21 0x00007ffff639d3c3 in start_thread () from /lib64/libpthread.so.0
#22 0x00007ffff30343ef in clone () from /lib64/libc.so.6

@Clément Foucault (fclem) feel free to reassign if this is not for you.

Clément Foucault (fclem) changed the task status from Unknown Status to Resolved by committing rBce09b93955de: Fix T61104 Compositing two scenes with different output scales crashes.Mar 18 2019, 9:40 PM
Clément Foucault (fclem) added a commit: rBce09b93955de: Fix T61104 Compositing two scenes with different output scales crashes.