SIGBUS under libvirt when displaying text

[moovman]

Summary of the bug:
random SIGBUS (SIG7) under libvirt when scaling, overlaying and drawing an rtmp input to rtmp output. can happen after 20 minutes or 20 hours.

How to reproduce:

ffmpeg -nostdin -i rtmp://localhost/shoutin/thestation -analyzeduration 0 -max_delay 1 -fflags nobuffer -fflags discardcorrupt -i /etc/nginx/logo-sm.png -filter_complex "setpts=PTS-STARTPTS,scale
=1280:720,overlay=1125:650,drawtext=x=10:y=660:textfile=/etc/nginx/text.txt:fontfile=/usr/share/fonts/truetype/dejavu/DejaVuSerif.ttf:fontsize=24:fontcolor=white:reload=1" -pix_fmt yuv420p -r 30 -c:v libx264 -b:v 3072k -keyint_min 30 -g 6
0 -force_key_frames "expr:gte(t,n_forced*2)" -x264opts no-scenecut -strict experimental -c:a aac -b:a 320k -af "asetpts=PTS-STARTPTS,aresample=async=1:min_hard_comp=0.100000" -f flv -aspect 16:9 rtmp://localhost/loop/thestation

ffmpeg version N-104775-g228b25ad9b Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)

ugh

[moovman]

gdb

[moovman]

report

[moovman]

looks like ive saved the wrong verbose log output - please ignore ffmpeg-debug-report.txt and ill recreate the error