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== Comment: #0 - Chanh H. Nguyen <chngu...@us.ibm.com> - 2015-01-09 17:30:08 ==
We use DVD to install Ubuntu 15.04 kernel 3.18.0-8-generic version on our
PowerVM system. After install, I am seeing this error
"/build/buildd/linux-3.18.0/drivers/rtc/hctosys.c: unable to open rtc device"
on the dmesg log...
root@pole1lp3:~# uname -a
Linux pole1lp3 3.18.0-8-generic #9-Ubuntu SMP Mon Jan 5 22:52:15 UTC 2015
ppc64le ppc64le ppc64le GNU/Linux
root@pole1lp3:~# dmesg |grep rtc
[ 0.556763] /build/buildd/linux-3.18.0/drivers/rtc/hctosys.c: unable to open
rtc device (rtc0)
[ 3.296241] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
root@pole1lp3:~#
== Comment: #2 - David Heller <helle...@us.ibm.com> - 2015-01-13 20:53:50 ==
It must be an order of operations thing: something is trying to do the hctosys
before the driver is loaded. A few seconds later the driver loads and it seems
fine after that.
root@pole1lp3:~# dmesg | grep rtc
[ 0.551202] /build/buildd/linux-3.18.0/drivers/rtc/hctosys.c: unable to open
rtc device (rtc0)
[ 3.353719] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
root@pole1lp3:~# find /dev -name \*rtc\*
/dev/rtc
/dev/rtc0
root@pole1lp3:~# hwclock
Tue 13 Jan 2015 07:36:15 PM CST -0.779773 seconds
root@pole1lp3:~# hwclock --hctosys
root@pole1lp3:~# date
Tue Jan 13 19:38:05 CST 2015
** Affects: init-system-helpers (Ubuntu)
Importance: Undecided
Status: New
** Tags: architecture-ppc64le bot-comment bugnameltc-120243 severity-medium
targetmilestone-inin---
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ISST-LTE: unable to open rtc device
https://bugs.launchpad.net/bugs/1410604
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