On Mon, Sep 10, 2012 at 10:40:01AM -0700, Albert Chu wrote: > On Mon, 2012-09-10 at 10:32 -0700, Andy Cress wrote: > > For this symptom: > > > Trying to shut down the machine (actually, a whole set of machines, > > all > > > behaving the same, so it's not a single fault), by running "shutdown > > -h > > > now", will not halt but reboot it. > > > The only way to reliably switch it off seems to be to run "ipmitool > > > chassis power soft", then "shutdown -h now". > > > The machine will then stay off for exactly 24 hours, then magically > > > restart. > > > > It sounds to me like someone is doing one of these every 24 hours: > > * sending a Wake-On-LAN magic packet to eth0 > > * sending an IPMI LAN chassis control power on command.
Since it happens at random times, and the box affected had been disconnected from mains power, *and* the BMC is not reachable from the network side, I can exclude both of these. (If it were a WOL packet, other nodes would be affected too, If it were "chassis power on" it must have been sent from somewhere that has access to the BMC - certainly not a powered-down mainboard.) > The "get system restart cause" IPMI command might be useful for > debugging these possibilities. In ipmitool I believe it's the "chassis > restart_cause" command. # ipmitool chassis restart_cause System restart cause: unknown Not very helpful, I guess... Thanks for your ideas, anything else you can imagine? S ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Ipmitool-devel mailing list Ipmitool-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ipmitool-devel
