First, on an afflicted system, I would see if shutdown -h does the same thing. It should behave identically.
Speaking of interesting platform behavior, I'll try to track down the specific situation, but: https://groups.google.com/forum/#!searchin/rtc-linux/rtc$20adrian/rtc-linux/ADwWuEVjS5s/sPJhe8rSZxoJ So hwclock running close to shutdown in some scenarios can cause a system to 'wake' shortly after shutdown, and a kernel patch is being worked. I've asked the person who wrote the patch for some detail to see if it may be relevant. It might be interesting to tweak things to skip calling hwclock on shutdown to see how things might change. -----Original Message----- From: David Johnson [mailto:[email protected]] Sent: Wednesday, June 24, 2015 5:56 PM To: xCAT Users Mailing list Subject: Re: [xcat-user] rpower softoff causing reboot It's a stretch, but I'm wondering if the BIOS/UEFI setting for "boot after power restored" = (never/previous state/always on) might be having some effect here? -- ddj Dave Johnson > On Jun 24, 2015, at 5:30 PM, Christopher J. Walker <[email protected]> > wrote: > > > >> On 24/06/15 15:45, Ling Gao wrote: >> What is the xCAT version on the management node? You can use "lsxcatd >> -a" or "xdsh -V" command to find out. > > > [[email protected] ~]# lsxcatd -a > Version 2.8.3 (built Tue Nov 12 23:16:15 EST 2013) This is a > Management Node dbengine=SQLite > > > We have a plan to upgrade it very soon for other reasons - so if that > is likely to solve the problem, that would be good to know. > > Chris > >> >> >> >> >> From: "Christopher J. Walker" <[email protected]> >> To: <[email protected]> >> Date: 06/24/2015 10:17 AM >> Subject: Re: [xcat-user] rpower softoff causing reboot >> --------------------------------------------------------------------- >> --- >> >> >> >>> On 23/06/15 16:51, Ling Gao wrote: >>> What hardware is it? >> >> IBM idataplex (Model 6391 - dual Xeon(R) CPU E5645 - with two >> machines in a 2U case) running Scientific Linux 6.2 (A RHEL 6.2 clone >> with security updates). >> >> I think we also had the same issue with a couple of quad socket AMD >> machines - Model 7164 as well. >> >> Chris >>> >>> >>> >>> From: "Christopher J. Walker" <[email protected]> >>> To: "[email protected]" >>> <[email protected]> >>> Date: 06/23/2015 11:46 AM >>> Subject: [xcat-user] rpower softoff causing reboot >>> -------------------------------------------------------------------- >>> ---- >>> >>> >>> >>> On some of our machines, >>> >>> rpower softoff >>> >>> causes the machine to reboot, not power down. >>> >>> Needless to say, this came as something of a surprise to me. >>> >>> Has anyone any ideas what caused this? >>> >>> Chris >> --------------------------------------------------------------------- >> --------- >>> Monitor 25 network devices or servers for free with OpManager! >>> OpManager is web-based network management software that monitors >>> network devices and physical & virtual servers, alerts via email & >>> sms for fault. 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