Tested again, here is the output. Machine will not poweroff, it hangs again.
root@ts219p:~# dmesg | grep rtc [ 1.241631] rtc rtc0: invalid alarm value: 1900-1-3 1193044:18:16 [ 1.247944] rtc-s35390a 0-0030: rtc core: registered rtc-s35390a as rtc0 [ 1.276697] rtc-s35390a 0-0030: setting system clock to 2016-05-01 21:50:18 UTC (1462139418) root@ts219p:~# echo 1 > /sys/kernel/debug/tracing/events/i2c/enable root@ts219p:~# cat /sys/class/rtc/rtc0/wakealarm root@ts219p:~# echo 0 > /sys/class/rtc/rtc0/wakealarm root@ts219p:~# cat /sys/class/rtc/rtc0/wakealarm root@ts219p:~# cat /sys/kernel/debug/tracing/trace # tracer: nop # # entries-in-buffer/entries-written: 3/3 #P:1 # # _-----=> irqs-off # / _----=> need-resched # | / _---=> hardirq/softirq # || / _--=> preempt-depth # ||| / delay # TASK-PID CPU# |||| TIMESTAMP FUNCTION # | | | |||| | | bash-708 [000] .... 117.749305: i2c_read: i2c-0 #0 a=032 f=0001 l=7 bash-708 [000] .... 117.749552: i2c_reply: i2c-0 #0 a=032 f=0001 l=7 [68-a0-80-00-86-4a-28] bash-708 [000] .... 117.749556: i2c_result: i2c-0 n=1 ret=1 Am 01.05.2016 um 21:36 schrieb Debian Bug Tracking System: > Thank you for the additional information you have supplied regarding > this Bug report. > > This is an automatically generated reply to let you know your message > has been received. > > Your message is being forwarded to the package maintainers and other > interested parties for their attention; they will reply in due course. > > Your message has been sent to the package maintainer(s): > Debian Kernel Team <debian-ker...@lists.debian.org> > > If you wish to submit further information on this problem, please > send it to 794...@bugs.debian.org. > > Please do not send mail to ow...@bugs.debian.org unless you wish > to report a problem with the Bug-tracking system. >