Turris 1.x routers is restarted irregularly itself

It was reported on our forum that in some cases reboots of Turris 1.x routers happens.

From what we have it seems to be related to this:

[12415.905252] PowerPC Book-E Watchdog Exception
[12415.905254] PowerPC Book-E Watchdog Exception

More details are included in this thread: https://forum.turris.cz/t/turris-os-4-5-pro-turris-1-x/11555/61