On Saturday 02 May 2015 08:50:28 Erik Christiansen wrote: > On 02.05.15 06:26, Gene Heskett wrote: > > Its come to my attention that something has already destroyed one > > hard drive in that box, forcing a reinstall and a recovery session > > with amanda to recover my stuff, and I am wondering if whatever is > > polling the drives at 2 second intervals was a contributing factor. > > So I just logged into that box and ran htop, discovering that > > networkmanager was also running although everything it touches has > > been subjected to a chattr +i, effectively emasculating that bit of > > crap. So the first thing I did was to sudo apt-get purge > > networkmanager. > > That's pretty much the first thing I do on a ubuntu box, but more to > get mail and other network-related stuff working. > > What do /var/log/kern.log, and perhaps /var/log/messages say? Being > persistent across boots, I guess they're your best bet for diagnosis. > If the wheels are falling off in rtai, then hopefully it'll squeal > there.
Its not in RTAI. It will crash just as randomly when lcnc isn't running. > > As for regular disk activity, they all seem to do it these days, > whether ubuntu or debian - mine is doing it every 7 seconds or so. The other, first box I bought, isn't blinking the led drive led. But htop does show that command running, scanning /dev/sr0 for a disk insertion I'd guess, at 2 second intervals. > > Also, gnome-power-manager is in the top 20 of the htop list. > > > > Perhaps that might be disabled also? > > I've just killed that process on a non-rt ubuntu 8.04 box. After > twenty minutes, it hasn't been auto restarted, and I haven't noticed > any issues. (Had to boot another host, since this debian 7.8.0 box has > no gnome-power-manager to begin with.) > > Not sure if this is the latest version, but have you run an eye over > the things to check here?: > > http://wiki.linuxcnc.org/cgi-bin/wiki.pl?TroubleShooting#Checking_the_ >RealTime_subsystem > > That "pcspkr" is sufficiently vague to make one wonder. Thats the beep generator. Uses the speaking in the computer if there is one. I don't think these boxes have one. > This is admittedly fox hunting in the dark without a spotlight, but if > I've set something running, mebbe someone else will plug it. > > Erik > Here is a snippet from /var/log/messages showing one such crash and my pressing of the reset button when I found the mouse was frozen: Apr 29 14:42:51 lathe kernel: [62057.888772] hm2/hm2_5i25.0: IO Pin 033 (P2-13): IOPort Apr 29 14:42:51 lathe kernel: [62057.888955] hm2/hm2_5i25.0: registered Apr 29 14:42:51 lathe kernel: [62057.888961] hm2_5i25.0: initialized AnyIO board at 0000:05:00.0 Apr 29 15:03:03 lathe kernel: imklog 4.2.0, log source = /proc/kmsg started. Apr 29 15:03:03 lathe rsyslogd: [origin software="rsyslogd" swVersion="4.2.0" x-pid="755" x-info="http://www.rsyslog.com";] (re)start Apr 29 15:03:03 lathe rsyslogd: rsyslogd's groupid changed to 103 Apr 29 15:03:03 lathe rsyslogd: rsyslogd's userid changed to 101 Apr 29 15:03:03 lathe kernel: [ 0.000000] Initializing cgroup subsys cpuset Apr 29 15:03:03 lathe kernel: [ 0.000000] Initializing cgroup subsys cpu Apr 29 15:03:03 lathe kernel: [ 0.000000] Linux version 2.6.32-122-rtai (root@moses-6core) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #rtai SMP Tue Jul 27 12:44:07 CDT 2010 (Ubuntu 2.6.32-122.35.rtai-rtai 2.6.32.11+drm33.2) Apr 29 15:03:03 lathe kernel: [ 0.000000] KERNEL supported cpus: Apr 29 15:03:03 lathe kernel: [ 0.000000] Intel GenuineIntel Apr 29 15:03:03 lathe kernel: [ 0.000000] AMD AuthenticAMD Apr 29 15:03:03 lathe kernel: [ 0.000000] NSC Geode by NSC Apr 29 15:03:03 lathe kernel: [ 0.000000] Cyrix CyrixInstead Apr 29 15:03:03 lathe kernel: [ 0.000000] Centaur CentaurHauls Apr 29 15:03:03 lathe kernel: [ 0.000000] Transmeta GenuineTMx86 Apr 29 15:03:03 lathe kernel: [ 0.000000] Transmeta TransmetaCPU I don't see a thing in that. > > > ---------------------------------------------------------------------- >-------- One dashboard for servers and applications across > Physical-Virtual-Cloud Widest out-of-the-box monitoring support with > 50+ applications Performance metrics, stats and reports that give you > Actionable Insights Deep dive visibility with transaction tracing > using APM Insight. > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
