Unfortunately I'm not 100% convinced yet.
I suffered from hangs with the 4.19.0-10 kernel; on 4.19.0-11 I got at
least a similar warning message on screen (see
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=968335#27), and last
saturday I also got a completely hanging system - without any feedback
in either kern.log, syslog or even on screen. Not responding to
keyboard. Only similarity I see is that syslog contains a bunch of
0-bytes at the time of the incident.
While I didn't get anything indicating that this is the same issue as
before, I'm not convinced that the issue is resolved.
But, I also got a new kernel version (4.19.0-12) today - let's see if
this one is more stable.
Regards,
Matthijs