On Mar 9, 2017, at 19:44 , Andrew C Aitchison wrote: > On Thu, 9 Mar 2017, Konstantin Olchanski wrote: > >> Hi, there. I wonder if anybody else is seeing the same problem with el7: >> >> The symptoms are: no ping, dead video, dead keyboard. After power cycle, >> syslog shows that the system has attempted to go into sleep or suspend >> or whatever they call it. >> >> This is very strange, usualy a system will go into suspend mode when you >> close the laptop lid, but these are not laptops. They are normal desktop >> machines (and at least in one case, there is no local user to blame for >> pressing the "sleep" button). >> >> So what's in the syslog: >> - normal activity (systemd spam) >> - network manager reports "sleep requested" >> - some kind of nm_dispatcher activity >> - systemd reaches sleep and suspend targets. >> - continues spewing sundry messages, never recovers (never goes into actual >> sleep). >> >> The machine is effectively dead after network manager put the network >> interfaces to sleep. > > Can the machine be made to respond to wake-on-lan ? > If so, setting that up *might* reduce the pain when this happens again ...
Given that the issue starts with NetworkManager reporting "sleep requested": is there such a thing as "sleep-on-lan"? We're not encountering this problem. Maybe because we're still not using NetworkManager...
