Stereoscopy with Motion Blur crashes in Eevee #96572

New Issue

Zach Bennett · 2022-03-17T20:54:59+01:00

Zach Bennett commented

2022-03-17 20:54:59 +01:00

System Information
Operating system: Windows 10
Graphics card: RTX 2070 Super

Blender Version
Broken: 3.1.0
Worked: 3.0.1
Caused by 4e78a7360e

When trying to render, blender crashes while Motion Blur is enabled and Stereoscopy is enabled. This only happens when using Eevee to render, it works in Cycles. This happens with both Stereo 3D and Multiview in the Stereoscopy settings.

Exact steps for others to reproduce the error
#96572.blend
Open file and Render image using Eevee

**System Information** Operating system: Windows 10 Graphics card: RTX 2070 Super **Blender Version** Broken: 3.1.0 Worked: 3.0.1 Caused by 4e78a7360e When trying to render, blender crashes while Motion Blur is enabled and Stereoscopy is enabled. This only happens when using Eevee to render, it works in Cycles. This happens with both Stereo 3D and Multiview in the Stereoscopy settings. **Exact steps for others to reproduce the error** [#96572.blend](https://archive.blender.org/developer/F12932438/T96572.blend) Open file and Render image using Eevee

Zach Bennett commented

2022-03-17 20:54:59 +01:00

Added subscriber: @WretchedShrub

Richard Antalik commented

2022-03-18 00:26:57 +01:00

Added subscriber: @iss

Richard Antalik commented

2022-03-18 00:26:57 +01:00

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

Richard Antalik commented

2022-03-18 00:26:57 +01:00

Trace:

>	blender.exe!BLI_mempool_len(const BLI_mempool * pool) Line 436	C

 	blender.exe!BLI_ghash_free(GHash * gh, void(*)(void *) keyfreefp, void(*)(void *) valfreefp) Line 865	C
 	blender.exe!EEVEE_motion_blur_swap_data(EEVEE_Data * vedata) Line 508	C
 	blender.exe!eevee_render_to_image(void * vedata, RenderEngine * engine, RenderLayer * render_layer, const rcti * rect) Line 569	C
 	blender.exe!DRW_render_to_image(RenderEngine * engine, Depsgraph * depsgraph) Line 1979	C
 	blender.exe!engine_render_view_layer(Render * re, RenderEngine * engine, ViewLayer * view_layer_iter, const bool use_engine, const bool use_grease_pencil) Line 900	C
 	blender.exe!RE_engine_render(Render * re, bool do_all) Line 1021	C
 	blender.exe!do_render_engine(Render * re) Line 1060	C
 	blender.exe!do_render_compositor(Render * re) Line 1198	C
 	blender.exe!do_render_full_pipeline(Render * re) Line 1467	C
 	blender.exe!RE_RenderFrame(Render * re, Main * bmain, Scene * scene, ViewLayer * single_layer, Object * camera_override, int frame, const bool write_still) Line 1868	C
 	blender.exe!render_startjob(void * rjv, short * stop, short * do_update, float * progress) Line 661	C++
 	blender.exe!do_job_thread(void * job_v) Line 369	C
 	blender.exe!tslot_thread_start(void * tslot_p) Line 205	C++
 	[External Code]

Trace: ``` > blender.exe!BLI_mempool_len(const BLI_mempool * pool) Line 436 C blender.exe!BLI_ghash_free(GHash * gh, void(*)(void *) keyfreefp, void(*)(void *) valfreefp) Line 865 C blender.exe!EEVEE_motion_blur_swap_data(EEVEE_Data * vedata) Line 508 C blender.exe!eevee_render_to_image(void * vedata, RenderEngine * engine, RenderLayer * render_layer, const rcti * rect) Line 569 C blender.exe!DRW_render_to_image(RenderEngine * engine, Depsgraph * depsgraph) Line 1979 C blender.exe!engine_render_view_layer(Render * re, RenderEngine * engine, ViewLayer * view_layer_iter, const bool use_engine, const bool use_grease_pencil) Line 900 C blender.exe!RE_engine_render(Render * re, bool do_all) Line 1021 C blender.exe!do_render_engine(Render * re) Line 1060 C blender.exe!do_render_compositor(Render * re) Line 1198 C blender.exe!do_render_full_pipeline(Render * re) Line 1467 C blender.exe!RE_RenderFrame(Render * re, Main * bmain, Scene * scene, ViewLayer * single_layer, Object * camera_override, int frame, const bool write_still) Line 1868 C blender.exe!render_startjob(void * rjv, short * stop, short * do_update, float * progress) Line 661 C++ blender.exe!do_job_thread(void * job_v) Line 369 C blender.exe!tslot_thread_start(void * tslot_p) Line 205 C++ [External Code] ```

Pratik Borhade commented

2022-03-19 12:37:12 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-03-20 11:10:31 +01:00

Added subscriber: @JacquesLucke

Pratik Borhade commented

2022-03-20 11:10:31 +01:00

Crash introduced after this commit- 4e78a7360e
@JacquesLucke ^

Crash introduced after this commit- 4e78a7360e @JacquesLucke ^

Jacques Lucke commented

2022-03-20 13:00:52 +01:00

Only had a quick look so far. Asan shows that it is a use-after-free bug: P2840.

Only had a quick look so far. Asan shows that it is a use-after-free bug: [P2840](https://archive.blender.org/developer/P2840.txt).

blender-admin commented

2022-03-21 10:05:39 +01:00

This issue was referenced by e5487a81a4

This issue was referenced by e5487a81a414e0564a977f442e690f38d9ae4ebf

blender-admin commented

2022-03-21 10:05:39 +01:00

This issue was referenced by 9ed63ebb45

This issue was referenced by 9ed63ebb458141661bcbfe81c187f843e9dcbacf

Jacques Lucke commented

2022-03-21 10:06:19 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Jacques Lucke closed this issue

2022-03-21 10:06:19 +01:00

Jacques Lucke self-assigned this 2022-03-21 10:06:19 +01:00

Pratik Borhade commented

2022-03-21 11:18:47 +01:00

Broken: 3.1.0

@JacquesLucke hi, thanks for the fix. How about backporting this commit for corrective release?

Change appears safe for backporting :)

> Broken: 3.1.0 @JacquesLucke hi, thanks for the fix. How about backporting this commit for corrective release? Change appears safe for backporting :)

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Stereoscopy with Motion Blur crashes in Eevee #96572