[FFmpeg-trac] #8332(undetermined:new): ffmpeg becomes zombie process

FFmpeg trac at avcodec.org
Thu Oct 24 15:14:38 EEST 2019

#8332: ffmpeg becomes zombie process
             Reporter:  chrisbgp     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
 Summary of the bug:
 To limit the cpu usage of ffmpeg I have used the following command in the
 '''while true ; do pkill -STOP ffmpeg && sleep 0.1 && pkill -CONT ffmpeg
 && sleep 0.1 ; done'''
 This does not seem to work anymore, ffmpeg turns into a zombie process
 after a little while. -loglevel debug does not show anything. I have tried
 the latest git snapshot as well.

 How to reproduce:
 % ffmpeg version N-95534-gac0f5f4c17 Copyright (c) 2000-2019 the FFmpeg
   built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
   configuration: --enable-libx264 --enable-libx265 --enable-nonfree

 shell #1:
 for i in *.MP4 ; do ffmpeg -loglevel debug -i $i -f null - ; done
 shell #2:
 while true ; do pkill -STOP ffmpeg && sleep 0.1 && pkill -CONT ffmpeg &&
 sleep 0.1 ; done
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

Ticket URL: <https://trac.ffmpeg.org/ticket/8332>
FFmpeg <https://ffmpeg.org>
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