On Mon, 2020-08-17 at 13:13 +0200, bigeasy@linutronix.de wrote: > 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. Sebastian, did you have a chance to bring up a duration test on your imx6q board? Are there any results from testing? Thanks, Henri