Is the watchdog service enabled? I've tried it on raspbian and it worked fine.
I can see on my RPi3
Libreelec:~ # ps -ef|grep watchdog
11 root 0:03 [watchdog/0]
14 root 0:02 [watchdog/1]
20 root 0:02 [watchdog/2]
26 root 0:02 [watchdog/3]
39 root 0:00 [watchdogd]
31253 root 0:00 grep watchdog
So something is running, and they have a priority of RT.They can also not be killed with kill -9 39
However, trying the normal fork bomb :(){ :|:& };: fails with -sh: syntax error: bad function name.
Whereas
bomb() { bomb | bomb &
}; bomb
Works, but the system just stalls and nothing happens - even though ping still works.
I tried adding
To config.txt but without any success.
So it seems that something is almost there but not actually working.
As @Klojum mentioned it caused problems but with the addition of the dtparm option users could enable/disable the watchdog if they feel the need