On 2020-08-17 08:12:31 [+0000], Roosen Henri wrote: > > Is the 4.14 series the only one that is affected? > > No, unfortunately not. > > I ended up testing the v4.14.184-rt84 on two systems and the v5.4.45- > rt27 on another system, all iMX6Q. Only one of the v4.14 systems is > still running, the other v4.14 system dumping backtraces until > eventually reset, the v5.4 system endlessly dumping backtraces: > > v4.14: https://paste.ubuntu.com/p/ZdFYhs4pjx/ > v5.4: https://paste.ubuntu.com/p/wZPCQv8KjX/ So the 5.4 has an uptime of 45 days until this start? > If the backtraces don't point to a root-cause, are there any kernel > configuration options which are usefull to track this issue down? The 5.4 is not complete, it started earlier and this might be a follow-up problem (it seems to originate in die()). You could send me the config, I have an imx6q somewhere so I might be able to take a look. However I want sort another ppc issue first. > Thanks! Sebastian