------- Comment From heinz-werner_se...@de.ibm.com 2020-11-19 10:17 EDT------- Reduced importance from "ship issue" to "high", not a real ship issue, but is mandatory to be fixed within the service stream
** Tags removed: severity-critical ** Tags added: severity-high -- 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/1904884 Title: [UBUNUT 20.04] s390: dbginfo.sh triggers kernel panic, reading from /sys/kernel/mm/page_idle/bitmap Status in Ubuntu on IBM z Systems: New Status in linux package in Ubuntu: New Status in linux source package in Bionic: New Status in linux source package in Focal: New Status in linux source package in Groovy: New Status in linux source package in Hirsute: New Bug description: System hangs on dbginfo.sh script execution. Solution: Commit 92fb1db26eef ("mm/page_idle.c: skip offline pages") Included upstream since kernel v5.8, so it is already included in Ubuntu 20.10, but not in 20.04 and earlier. Commit 92fb1db26eef ("mm/page_idle.c: skip offline pages") applies cleanly on ubuntu-focal, but not on ubuntu-bionic. Adjustment / backport for bionic should be trivial, but it is not IBM code and therefore the backport will be requested here by Canonical. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1904884/+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
