You have been subscribed to a public bug: == Comment: #0 - Chanh H. Nguyen <[email protected]> - 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 <[email protected]> - 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: linux (Ubuntu) Importance: Low Status: Triaged ** Tags: architecture-ppc64le bot-comment bugnameltc-120243 severity-medium targetmilestone-inin1604 vivid -- ISST-LTE: unable to open rtc device https://bugs.launchpad.net/bugs/1410604 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
