On Fri, Jul 26, 2019 at 02:16:15PM -0600, home user via users wrote: > (replying to all responders) > > Actually, the first thing that catches my attention is that when I > go to the password entry box, the system fans really surge. This > suggests to me the CPUs are working at or near capacity. > > I also see top and ksysguard repeatedly freezing for several seconds. > > (Fred: dirty shutdown; top) > The system was not responding to any keystrokes or trackball clicks. > The only remaining options are hard reset and hard power off. there are often additional choices besides a hard shutdown. google for "magic sysreq key". > > (Fred: memory) > The problem is not memory use. It is CPU load. OK. I was thinking of a "swap storm". if the system gets pushed into heavy swapping (because of too much memory neededfor what is running) it can slow to a crawl, sometimes taking many minutes to recover once the memory pressure is relieved. > > (Fred: waiting) > I waited quite a few seconds; certainly long enough to know there's > a real problem. It does take a while to move the cursor all over > the place, clicking in various places (e.g. menus, 'x' in the upper > right corner of various windows) along the way. > > (Fred: CTRL-ALT-F2 or CTRL-ALT-F3) > Does going into this mode kill the session I was in before? If no, > how do I get back? If yes, how do I get back to normal operation > without rebooting? No, the GUI is still there, it's just on another virtual screen. Usually you can go back there by doing ALT-F1 or CTRL-ALT-F1. -- ---- Fred Smith -- fredex@xxxxxxxxxxxxxxxxxxxxxx ----------------------------- The Lord detests the way of the wicked but he loves those who pursue righteousness. ----------------------------- Proverbs 15:9 (niv) ----------------------------- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx