I can provide more information, i've been battling with this for a long time. Tried on U3 and U3+ with similar results: 1) samsung tizen 4.1 kernel reboots OK. 2) i tried 4.4, 4.6, 4.7 (from Tobias's repository) all have the reboot issue. i've put some printk in the syscon reboot. it looks like it gets registered, but i never saw the printk put in the actual notifier function. 3) the issue is the same for emmc and sd-card, i've tried both 4) IT'S VERY RANDOM * i've got sysrq rebooting OK, i've got sysrq ending in a kernel crash (like Nicolas above) * I've got rebooting working ok sometimes, but only from tty1 console or sometimes ssh - NEVER from ttySAC1 serial console. rebooting from serial console always resulted in hang after systemd stops. * after switching from emmc to sd-card, there are always problems. i had sd-card rebooting ok (from tty1) for a few hours, then after i put in an emmc card => hell broke loose. putting sd-card back => still had issues, although sd was fine before. * many times, after reboot hang or switching from emmc to sd or the other way around => kernel would crash on boot for a few times. I reverted the SYSCON driver changes, and went back to the reboot code in the exynos pmu.c file like 4.1 kernel => got the same issues. I thought it's a systemd issue (after seeing echo b > /proc/sysrq-trigger working ok) and tried the kernel on a ubuntu 14.04 image (with upstart) => got the same issues. I think it might be u-boot. PS: please keep me in the CC from here on as well. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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