------- Comment From cborn...@de.ibm.com 2018-11-29 09:18 EDT------- removing /lib/systemd/system-generators/s390-cpi-vars Seems to help. (this seems to be an ubuntu specific extension). We just need to move this functionality (adding ubuntu and the version) into the common cpi handling.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1805841 Title: CPI information about kvm usage is lost during apt upgrade Status in linux package in Ubuntu: New Bug description: ---Problem Description--- CPI information about kvm usage is lost during apt upgrade ---uname output--- 4.15.0-42-generic Machine Type = s390x lpar ---Steps to Reproduce--- # cat /sys/firmware/cpi/* cat: /sys/firmware/cpi/set: Permission denied 0x0000000000040f00 LINUX root@m83lp52:~# virsh start guest # starting a guest does set the highest bit in /sys/firmware/cpi/system_leveln root@m83lp52:~# cat /sys/firmware/cpi/* cat: /sys/firmware/cpi/set: Permission denied 0x8000000000040f00 <---- see the 8 LINUX root@m83lp52:~# apt upgrade [....] has to upgrade at least one package, that will trigger some other code. [....] Now. some other code seems to have set values in /sys/firmware/cpi as well dropping the kvm information. root@m83lp52:~# cat /sys/firmware/cpi/* cat: /sys/firmware/cpi/set: Permission denied 18 04 1 0x0000000000040f00 UBUNTU LINUX The canonical place to handle /sys/firmware/cpi should be /lib/s390-tools/cpictl and /lib/systemd/system/cpi.service. So can we put the additional features (setting 18 04 1 and UBUNTU things also into /etc/sysconfig/cpi or /lib/s390-tools/cpictl ) and can we disable the other code that also sets /sys/firmware/cpi (I have not found out which code sets these values). This seems to be /lib/systemd/system-generators/s390-cpi-vars To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1805841/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
