tpm8

ok - here is my feedback, unfortunately uboot 5.24 does not fix it for me. Cubietruck, Jessie Legacy kernel (3.4.112-sun7i) Image 5.20 with all updates. Stability tests witch cpufreq-ljt-stress-test and Lima Memtester. uboot 5.23: Kernel crashes after few seconds during load, Error on console: Unable to handlE kernel NULL pointer dereference at virtual address 000000 uboot 5.24 beta (linux-u-boot-cubietruck_5.24.161109_armhf.deb): Kernel crashes after few seconds during load, Error on console: Unable to handle kernel paging request at virtual address xxxxxx Downgrading uboot to 5.17 or 5.20 - everything is rock solid. No problems during complete runs of cpufreq-ljt-stress-test and Lima Memtester. Tobias

I think I see similar problems with uboot 5.23 on my cubietruck. Going back to uboot 5.17 fixed it for me for the moment. See my post here: https://forum.armbian.com/index.php/topic/2044-some-discovery-while-trying-520-builds/ I'm going to test the beta version, too. Thx Tobias

Martin, folks, I can confirm the Unable to handlE kernel NULL pointer dereference at virtual address 000000 errors after a clean install from scratch of the current jessie 5.20 images (both vanilla or legacy) and updating all packages (apt-get upgrade) on my cubietruck. Sometimes I saw crashes during boot but mostly with some load. Lima memtester and cpufreq-ljt-stress-test both crash the cubie after few seconds. Downgrading uboot from 5.23 to 5.17 ( linux-u-boot-cubietruck_5.17_armhf.deb ) fixes this problem. With uboot 5.17 both Lima memtester and cpufreq-ljt-stress-test run without any errors or crahes. Any chance, this can be fixed? For the moment, I put the uboot package on hold for apt-get upgrade. Thx Tobias