FFMpeg illegal instruction

I know this question has been asked but the issue appears to be closed so I wondered what its status was.

I tried the following to extract the audio track and got an illegal instruction:

ffmpeg -i sample.avi -ss 00:03:05 -q:a 0 -map a sample.mp3

Start by reproducing the reported ffmpeg command with sample.avi in the iSH environment and capture where the illegal instruction occurs. Investigate the relevant Linux-on-iOS execution path and confirm that audio extraction completes without the crash.

Written by the indexing model from the issue text.