Segmentation fault when opening VSE files or displaying thumbnails #78867

New Issue

djib · 2020-07-12T21:57:13+02:00

djib commented

2020-07-12 21:57:13 +02:00

System Information
Operating system: Debian Bullseye
Graphics card: Radeon Vega 56

Blender Version
Broken: Blender 2.83.1 and Blender 2.82 (sub 7)
Worked: Blender 2.79b

Short description of error
When opening .blend VSE files, blender crashes with a segmentation fault.
Blender crashes both when called from the command line blender myfile.blendor when loading the file from blender.
Browsing (Shift-F1) to a folder containing a video also crashes Blender.

Content of the crash log

# Blender 2.82 (sub 7), Unknown revision

# backtrace
blender(BLI_system_backtrace+0x33) [0x563e281a10b3]
blender(+0x13e4dc6) [0x563e25bbbdc6]
/lib/x86_64-linux-gnu/libc.so.6(+0x3b800) [0x7f532422c800]
/usr/lib/x86_64-linux-gnu/libswscale.so.5(+0x74e6a) [0x7f5324a48e6a]

Exact steps for others to reproduce the error

Open blender
Browse (Shift-F1) to a folder containing a video
Change the display mode to "Thumbnails"
Blender crashes

**System Information** Operating system: Debian Bullseye Graphics card: Radeon Vega 56 **Blender Version** Broken: Blender 2.83.1 and Blender 2.82 (sub 7) Worked: Blender 2.79b **Short description of error** When opening .blend VSE files, blender crashes with a segmentation fault. Blender crashes both when called from the command line `blender myfile.blend`or when loading the file from blender. Browsing (Shift-F1) to a folder containing a video also crashes Blender. Content of the crash log ``` # Blender 2.82 (sub 7), Unknown revision # backtrace blender(BLI_system_backtrace+0x33) [0x563e281a10b3] blender(+0x13e4dc6) [0x563e25bbbdc6] /lib/x86_64-linux-gnu/libc.so.6(+0x3b800) [0x7f532422c800] /usr/lib/x86_64-linux-gnu/libswscale.so.5(+0x74e6a) [0x7f5324a48e6a] ``` **Exact steps for others to reproduce the error** - Open blender - Browse (Shift-F1) to a folder containing a video - Change the display mode to "Thumbnails" - Blender crashes

djib commented

2020-07-12 21:57:13 +02:00

Added subscriber: @me-2

blender-admin commented

2020-07-12 21:57:13 +02:00

#79282 was marked as duplicate of this issue

blender-admin commented

2020-07-12 21:57:13 +02:00

#79079 was marked as duplicate of this issue

Richard Antalik commented

2020-07-13 19:16:07 +02:00

Added subscriber: @iss

Richard Antalik commented

2020-07-13 19:16:07 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Richard Antalik commented

2020-07-13 19:16:07 +02:00

Can not reproduce this on windows. Can you check if this happens with portable build? https://builder.blender.org/download/

Also by VSE files you mean video files or .blend files with VSE projects?

Can not reproduce this on windows. Can you check if this happens with portable build? https://builder.blender.org/download/ Also by VSE files you mean video files or .blend files with VSE projects?

djib commented

2020-07-14 15:05:04 +02:00

Hello,

It doesn't crash with the latest build. Thanks.

By .blend VSE files I mean blender VSE projects.
The crash happens when Blender tries to display a video (avi, mp4…) thumbnail in the file browser. Almost all my VSE projects have a file browser in the layout, which must cause the crash.

In the meantime, it there a way I can disable thumbnails? Or open projects with an empty workspace?

Thanks.

Hello, It doesn't crash with the latest build. Thanks. By .blend VSE files I mean blender VSE projects. The crash happens when Blender tries to display a video (avi, mp4…) thumbnail in the file browser. Almost all my VSE projects have a file browser in the layout, which must cause the crash. In the meantime, it there a way I can disable thumbnails? Or open projects with an empty workspace? Thanks.

Richard Antalik commented

2020-07-14 21:09:10 +02:00

You can change filebrowser to not display thumbnails this and save startup file.

I asked to check wih daily build, because crash occured in /usr/lib/x86_64-linux-gnu/libswscale.so.5 so this looks that there may be some problem in your system with this library. I am not sure what could be the issue, perhaps some application has overwritten this file with own that has some features missing? I am really just guessing now. That said, this may be a problem with package created by distro maintainers.

Perhaps you could also try to install via snap store?

You can change filebrowser to not display thumbnails this and save startup file. I asked to check wih daily build, because crash occured in `/usr/lib/x86_64-linux-gnu/libswscale.so.5` so this looks that there may be some problem in your system with this library. I am not sure what could be the issue, perhaps some application has overwritten this file with own that has some features missing? I am really just guessing now. That said, this may be a problem with package created by distro maintainers. Perhaps you could also try to install via snap store?

djib commented

2020-07-14 21:58:28 +02:00

Hello,

Changing the startup file doesn't help when loading existing projects does it? Or maybe I'm missing something.

I tried reinstalling libswscale just in case but it didn't help. Upgrading to the latest version in Debian Sid didn't help either.

Hello, Changing the startup file doesn't help when loading existing projects does it? Or maybe I'm missing something. I tried reinstalling libswscale just in case but it didn't help. Upgrading to the latest version in Debian Sid didn't help either.

Richard Antalik commented

2020-07-14 22:01:47 +02:00

Added subscriber: @Sergey

Richard Antalik commented

2020-07-14 22:01:47 +02:00

In #78867#979071, @me-2 wrote:
Changing the startup file doesn't help when loading existing projects does it? Or maybe I'm missing something.

That is true, it won't help there.

@Sergey any idea what is the issue here?

> In #78867#979071, @me-2 wrote: > Changing the startup file doesn't help when loading existing projects does it? Or maybe I'm missing something. That is true, it won't help there. @Sergey any idea what is the issue here?

Sergey Sharybin commented

2020-07-15 09:31:21 +02:00

Official Blender version do not use any system libraries other than X11 and OpenGL. They definitely do not use system-wide FFmpeg libraries (libswscale.so is part of FFmpeg).

We can only fix issues which we can reproduce with official builds from blender.org websites, and we do need exact files to reproduce the issue.

So:

Make sure issue happens with builds from blender.org / builder.blender.org
If the crash does happen with those builds, give an example of video file which makes thumbnails to crash
If some specific .blend file is needed for the crash, attach it as well

Official Blender version do not use any system libraries other than X11 and OpenGL. They definitely do not use system-wide FFmpeg libraries (`libswscale.so` is part of FFmpeg). We can only fix issues which we can reproduce with official builds from blender.org websites, and we do need exact files to reproduce the issue. So: - Make sure issue happens with builds from blender.org / builder.blender.org - If the crash does happen with those builds, give an example of video file which makes thumbnails to crash - If some specific .blend file is needed for the crash, attach it as well

Eiji Onchi commented

2020-07-16 07:24:28 +02:00

Added subscriber: @CGx

Eiji Onchi commented

2020-07-16 07:24:28 +02:00

Exact same problem in my machine. system-info.txt

System Information
Operating system: Arch Linux
Graphics card: RTX 2070 Super

Exact same problem in my machine. [system-info.txt](https://archive.blender.org/developer/F8698524/system-info.txt) System Information Operating system: Arch Linux Graphics card: RTX 2070 Super

Sergey Sharybin commented

2020-07-16 11:07:44 +02:00

Please test with official builds from blender.org/builder.blender.org.
If the issue happens with the official builds, follow the bug report guidelines.

If the issue does not happen with the official builds, contact maintainer of Blender package in your Linux distribution.

Please test with official builds from blender.org/builder.blender.org. If the issue happens with the official builds, follow the bug report guidelines. If the issue does not happen with the official builds, contact maintainer of Blender package in your Linux distribution.

Richard Antalik commented

2020-07-17 01:41:00 +02:00

Changed status from 'Needs User Info' to: 'Archived'

Richard Antalik closed this issue

2020-07-17 01:41:00 +02:00

Richard Antalik self-assigned this 2020-07-17 01:41:00 +02:00

Richard Antalik commented

2020-07-17 01:41:00 +02:00

I will close this report as this did not happen with official build

Sergey Sharybin commented

2020-07-20 15:58:41 +02:00

Note: could be related to https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=964802

blender-admin commented

2020-07-20 18:57:28 +02:00

This issue was referenced by 53b98de260

This issue was referenced by 53b98de26030574ae2ecdaac5e33b37acb5444e2

blender-admin commented

2020-07-20 18:57:28 +02:00

This issue was referenced by 6778ef4dcc

This issue was referenced by 6778ef4dcc6e8d92e3b2ec9b9ecaf1e54e5bf7b5

Richard Antalik commented

2020-07-21 01:52:17 +02:00

Added subscriber: @OrakMoya

Sergey Sharybin commented

2020-07-21 12:49:55 +02:00

Changed status from 'Archived' to: 'Resolved'

Eiji Onchi commented

2020-07-21 14:51:46 +02:00

In #78867#980007, @Sergey wrote:
Please test with official builds from blender.org/builder.blender.org.
If the issue happens with the official builds, follow the bug report guidelines.

If the issue does not happen with the official builds, contact maintainer of Blender package in your Linux distribution.

The official builds work fine.
I am using them for the time being.

Thank you very much for your help!

> In #78867#980007, @Sergey wrote: > Please test with official builds from blender.org/builder.blender.org. > If the issue happens with the official builds, follow the bug report guidelines. > > If the issue does not happen with the official builds, contact maintainer of Blender package in your Linux distribution. The official builds work fine. I am using them for the time being. Thank you very much for your help!

Richard Antalik commented

2020-07-28 13:55:23 +02:00

Added subscriber: @zegkljan

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Segmentation fault when opening VSE files or displaying thumbnails #78867