Hello Matthias, Thanks for your kind response.
> I have seen the same message on an i.MX6S7 > (https://www.karo-electronics.com/fileadmin/download/Datasheets/TX6S-Datasheet.pdf) > with kernel 5.10 (in a dunfell Yocto after I upgraded from kernel 4.14). > > Since we use an external RTC on the I2C bus, I disabled the internal RTC > ("snvs_rtc") in the device tree, and did not analyze the problem further. How did you disable snvs_rtc? My device tree to include imx6ull.dtsi which don't have snvs_rtc, only has snvs-rtc-lp, so I added status = "disabled"; to the snvs-rtc-lp node: snvs-rtc-lp { compatible = "fsl,sec-v4.0-mon-rtc-lp"; regmap = <0x16>; offset = <0x34>; status = "disabled"; } that must be wrong, it crashed in kernel booting. [ 9.478754] ---[ end trace dc624b5857965e18 ]--- [ 9.483962] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0b [ 9.483962] [ 9.493223] ---[ end Kernel panic - not syncing: Attempted to kill init! exib [ 9.493223] ]--- Thank you. Kind regards, - jupiter
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