Blender crashes when clicking back and forth in VSE timeline #46570

New Issue

Miranda · 2015-10-22T19:24:37+02:00

Miranda commented

2015-10-22 19:24:37 +02:00

System Information
Debian 8 Xfce (Linux version 3.16.0-4-amd64)
NVIDIA GTX 970

Blender Version
Broken: 2.76
Worked: never (all versions I tried had this problem)

Short description of error
While working in VSE mode with Audio scrubbing and AV-sync activated,
if I click back and forth in the timeline too fast it causes a crash (segmention fault).

Exact steps for others to reproduce the error
Load Full HD file into blender VSE
Click back an forth in the timeline very fast:
Blender crashes.

It's not that I need blender to be able to click back and forth too fast, but while working normally, it unfortunately happens as well, which is at times quite annoying.
Thanks in advance!

# backtrace
./blender(BLI_system_backtrace+0x1d) [0x1a3de6d]
./blender() [0x10567e4]
./blender() [0x10569c1]
/lib/x86_64-linux-gnu/libc.so.6(+0x35180) [0x7fccc0546180]
./blender(_ZN18AUD_SoftwareDevice3mixEPhi+0xa6) [0x229baf6]
./blender(_ZN14AUD_JackDevice17updateRingBuffersEv+0x160) [0x228fff0]
./blender(_ZN14AUD_JackDevice15runMixingThreadEPv+0x9) [0x2290139]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x80a4) [0x7fccc0ece0a4]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fccc05f704d]

# Blender 2.76 (sub 0), Commit date: 2015-10-11 06:55, Hash 48f7dd6

# backtrace
./blender(BLI_system_backtrace+0x1d) [0x1a3de6d]
./blender() [0x10567e4]
./blender() [0x10569c1]
/lib/x86_64-linux-gnu/libc.so.6(+0x35180) [0x7fa670567180]
./blender() [0x1675524]
./blender(_ZN14AUD_JackDevice17updateRingBuffersEv+0xc9) [0x228ff59]
./blender(_ZN14AUD_JackDevice15runMixingThreadEPv+0x9) [0x2290139]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x80a4) [0x7fa670eef0a4]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fa67061804d]

**System Information** Debian 8 Xfce (Linux version 3.16.0-4-amd64) NVIDIA GTX 970 **Blender Version** Broken: 2.76 Worked: never (all versions I tried had this problem) **Short description of error** While working in VSE mode with Audio scrubbing and AV-sync activated, if I click back and forth in the timeline too fast it causes a crash (segmention fault). **Exact steps for others to reproduce the error** Load Full HD file into blender VSE Click back an forth in the timeline very fast: Blender crashes. It's not that I need blender to be able to click back and forth too fast, but while working normally, it unfortunately happens as well, which is at times quite annoying. Thanks in advance! ``` # backtrace ./blender(BLI_system_backtrace+0x1d) [0x1a3de6d] ./blender() [0x10567e4] ./blender() [0x10569c1] /lib/x86_64-linux-gnu/libc.so.6(+0x35180) [0x7fccc0546180] ./blender(_ZN18AUD_SoftwareDevice3mixEPhi+0xa6) [0x229baf6] ./blender(_ZN14AUD_JackDevice17updateRingBuffersEv+0x160) [0x228fff0] ./blender(_ZN14AUD_JackDevice15runMixingThreadEPv+0x9) [0x2290139] /lib/x86_64-linux-gnu/libpthread.so.0(+0x80a4) [0x7fccc0ece0a4] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fccc05f704d] ``` ``` # Blender 2.76 (sub 0), Commit date: 2015-10-11 06:55, Hash 48f7dd6 # backtrace ./blender(BLI_system_backtrace+0x1d) [0x1a3de6d] ./blender() [0x10567e4] ./blender() [0x10569c1] /lib/x86_64-linux-gnu/libc.so.6(+0x35180) [0x7fa670567180] ./blender() [0x1675524] ./blender(_ZN14AUD_JackDevice17updateRingBuffersEv+0xc9) [0x228ff59] ./blender(_ZN14AUD_JackDevice15runMixingThreadEPv+0x9) [0x2290139] /lib/x86_64-linux-gnu/libpthread.so.0(+0x80a4) [0x7fa670eef0a4] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fa67061804d] ```

Miranda commented

2015-10-22 19:24:37 +02:00

Changed status to: 'Open'

Miranda commented

2015-10-22 19:24:37 +02:00

Added subscriber: @ebename

Aaron Carlisle commented

2015-10-23 01:04:42 +02:00

Added subscriber: @Blendify

Aaron Carlisle commented

2015-10-23 01:04:42 +02:00

Hi, I cant seem to reproduce this can you post .blend with video which can be used to reproduce this. I also currently don't have and audio output driver for my computer so that may change things.

Campbell Barton commented

2015-10-23 10:46:35 +02:00

Added subscriber: @neXyon

Joerg Mueller commented

2015-10-26 22:14:45 +01:00

Hi,

I could reproduce the bug with jack and old (default) audaspace. Are you using Jack on purpose?

I tried to debug the code, but although it keeps crashing reproducible at the same spot, I cannot figure out what the problem is. A boost::shared_ptr somehow gets null although it shouldn't and I can't figure out why/where.

The bug is not appearing with the new audaspace version. I didn't change anything in the crashing area of code, although I'm not sure that a tiny change might have fixed this problem. But if not, the bug is probably cause by boost somehow? No clue what to do anymore, but it will be fixed in 2.8. ;-)

Cheers

Hi, I could reproduce the bug with jack and old (default) audaspace. Are you using Jack on purpose? I tried to debug the code, but although it keeps crashing reproducible at the same spot, I cannot figure out what the problem is. A boost::shared_ptr somehow gets null although it shouldn't and I can't figure out why/where. The bug is not appearing with the new audaspace version. I didn't change anything in the crashing area of code, although I'm not sure that a tiny change might have fixed this problem. But if not, the bug is probably cause by boost somehow? No clue what to do anymore, but it will be fixed in 2.8. ;-) Cheers

Aaron Carlisle self-assigned this 2015-11-02 02:47:37 +01:00

Aaron Carlisle removed their assignment 2015-11-02 02:48:18 +01:00

Joerg Mueller was assigned by Aaron Carlisle

2015-11-02 02:48:18 +01:00

Joerg Mueller commented

2019-11-06 11:26:58 +01:00

Changed status from 'Open' to: 'Resolved'

Joerg Mueller closed this issue

2019-11-06 11:26:58 +01:00

Joerg Mueller commented

2019-11-06 11:26:58 +01:00

Closing, bug is not present in 2.8.

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Blender crashes when clicking back and forth in VSE timeline #46570