On Mon, Dec 22, 2014 at 05:20:01PM +0000, Tom Hughes wrote: > On 22/12/14 17:07, Jan Kratochvil wrote: > >On Mon, 22 Dec 2014 05:59:50 +0100, Felix Miata wrote: > >>I started a yum upgrade process. When it reached 342/784 (@avahi) over half > >>an hour ago, the screen writing from the process simply halted. > > > >During F20->F21 upgrade I had to run along something like > > while sleep 1;do killall systemctl;done > >(the real command was longer) as many %post scripts tried to restart their > >daemon but during the upgrade each systemctl command was timing out with very > >long delay. > > I had that as well - the cause is that systemd asserts and goes into > panic mode which means it no longer responds to systemctl calls. It > didn't happen to all my machines but it did to a couple of them. > > The fix is to kill the dbus-daemon process - after that the > systemctl calls will still fail but will do so quickly rather than > slowly. > > You will also won't be able to do a clean reboot so will have to > resort to something like "sync; reboot -ff" to reboot after it > completes. FWIW I saw pretty much identical symptoms on 3 different machines. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
