------- Comment From klaus.theur...@de.ibm.com 2019-07-16 08:52 EDT------- ran tests on m3545035. ubuntu 18.02 with latest updates. Recreated the problem first (Not enough memory for annotating '__irf_end' symbol! and a hang) with perf top and a workload. Installed provided packages, reboot to activate the new kernel:
root@m3545035:~# uname -a Linux m3545035 4.15.0-55-generic #60+lp1828166.2-Ubuntu SMP Fri Jul 12 12:49:26 UTC 2019 s390x s390x s390x GNU/Linux ran perf top again and could still recreate the problem: Not enough memory for annotating '__irf_end' symbol! and a hang. What I see: perf -v gives me 4.15.18 before and after linux-tools* install. Is that expected? The perf fixes do not come with a new version of perf? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1828166 Title: perf top problem on z with Ubuntu 18.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1828166/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs