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Weird UTM freezes randomly approximately once a day ...

Escape75

I have experienced a strange lockup on my "new" UTM box, but I checked log files and they don't reveal anything, just a bunch of weird characters ...

2023:03:16-01:32:01 escape75 /usr/sbin/cron[25494]: (root) CMD (  nice -n19 /usr/local/bin/gen_inline_reporting_data.plx)
2023:03:16-01:35:01 escape75 /usr/sbin/cron[25649]: (root) CMD (   /usr/local/bin/reporter/system-reporter.pl)
�����������������������������������������������������������������������������������������������������������
2023:03:16-09:03:10 escape75 syslog-ng[4942]: syslog-ng starting up; version='3.4.7'
2023:03:16-09:03:12 escape75 ddclient[5361]: WARNING:  cannot connect to checkip.dyndns.org:80 socket: IO::Socket::INET: Bad hostname 'checkip.dyndns.org'
2023:03:16-09:03:24 escape75 system: System was restarted



So,- I've been running the software version of UTM (9.714) on my old unit (an XG115 r2) for a couple of years without any issues,
and recently I have migrated my saved config over to a new unit (XG115 r3) and a few hours after setting up the new unit (at night)
it froze up, and interfaces were not pingable (LAN) so I powered it down and rebooted. It's working again ...

Just wondering if there's something more I can look at to see what the issue was .. I have a hunch maybe it was DHCP related,
as my devices on the LAN were renewing the IP addresses and they were not in the table on the new unit, but it's a wild guess,
so if this doesn't happen again then maybe it's nothing to worry about.

I don't know if there would be an issue moving the config file (and license) from the old unit, but I wouldn't think so.

The new unit was installed the same way as the old unit, using the ssi-9.714-4.1.iso file and removing the /etc/asg with a software license,
and the old unit hasn't experienced any weird issues in years, and the ethernet ports and devices are setup in an identical way, nothing changed.

Just looking for thoughts and ideas ...

Stats from top:

top - 11:32:20 up 2:31, 1 user, load average: 0.09, 0.29, 0.25
Tasks: 163 total, 1 running, 160 sleeping, 0 stopped, 2 zombie
Cpu(s): 0.6%us, 0.5%sy, 0.0%ni, 98.5%id, 0.1%wa, 0.0%hi, 0.3%si, 0.0%st
Mem: 3898468k total, 3558768k used, 339700k free, 111124k buffers
Swap: 4194300k total, 112k used, 4194188k free, 1352808k cached

Zombies:

USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 18256 0.0 0.0 0 0 ? Z 11:30 0:00 [aua.bin] <defunct>
root 18595 0.6 0.0 0 0 ? Z 11:32 0:00 [confd.plx] <defunct>



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  • 0

    I think you've put in a good effort to try to get it going. What was the source of this device? If you can return it, I would. No point in wasting more time trouble shooting.

    I've bought used pc equip on ebay before. If it works great, if I can't get it going within an evening or 3, it goes back.

  • 0 in reply to Jay Jay

    Yes, it was ebay in fact.

    I have purchased a previous XG115 r2 and it's still running great, but this one has issues from the start ...

    I was just trying to figure out if I'm running into some weird bug possible with one of my LAN devices causing a crash,
    I know it would be strange but I've seen strange things, and the seller claims it was running just fine before it was replaced.

    You know, when I see stuff like this it makes me wonder if it was another bad unit or:

     XG115 Rev 3 freezing sometimes on SFOS 18.5.2 MR-2-Build380 

  • 0 in reply to Escape75

    I assume the chassis is the heatsink?

    What's the wd40 for?

  • 0 in reply to Jay Jay

    Yes, the underside of the chassis has a big heatsink mounted to it, and the CPU connects to it with a gummy thermal pad that can be re-installed after being taken off.

    I imagine the heatsink is big as it's meant to possibly be used for other models that have other chips that need cooling, as it's basically almost the size of the motherboard.

    The wd40 is meant as a corrosion inhibitor, but in my case I was using it to clean the board after the alcohol, as apparently it's safe to do so, as it's non-conductive.

    The unit was never opened before, or if it was, it was opened by Sophos as the security sticker was left intact, however I've noticed several places on the underside of the board that had weird residue, possibly thermal paste of some sort, so that's why I gave it a good cleaning.

    I guess I'll find out, if it stays up over the next few days I will be happy,- it's worth trying Slight smile

  • 0 in reply to Escape75

    Just a quick update, it's been almost 24 hours and still up, too early to tell if it's good.

    I opened up my old XG115 r2 and tested the battery, which is older, and to my surprise it was 3.2v ...

    It's also interesting that the old unit has a 2450 vs a 2032, with nearly a double capacity!

  • 0 in reply to Escape75

    Unfortunately it went down again, lasted about 24 hours ...

    Oh well, it's a hardware fault after all I guess so nothing I can do Slight smile

  • 0 in reply to Escape75

    One more update ...

    I tried with another power supply (higher amperage) but the issue remains.

    However, I have been testing Windows 10 on the unit, as well as performed Intel CPU tests and it passed!
    I am also now running pfSense on the unit, and hopefully I will get some more answers as to what could be happening.

  • 0 in reply to Escape75

    Feels good to have gone through this exercise? :)

    Run some prime95 torture tests on it for a few hours.. I'd be surprised if it doesn't lock up sooner than later.

    Has *sense been stable on it? I think their igb drivers are more picky than linux's.

  • 0 in reply to Jay Jay

    I think it feels good, I'm learning more details about what the issue might be Slight smile

    So, the interesting part is that my pfSense is setup in a similar configuration,
    port 1 is WAN, and ports 2,3,4 are just bridged LAN, but so far pfSense has
    not gone down and uptime is at 1 day and 23 hours!

    This is much longer than UTM or SFOS has been able to do, and I've also tried taxing
    the CPU by issuing multiple 'yes > /dev/null &' for each core, and there were no issues.

    So, since I am sure there's other people here on UTM using an XG115 r3 without issues,
    I must be running into a hardware fault that's only exposed by UTM and not pfSense ...

    I don't know how that is possible Slight smile

  • 0 in reply to Escape75

    Did you do a prime95 test?

  • 0 in reply to Jay Jay

    I did not, yet.

    I wish there was a way to run prime95 on pfSense, maybe there's a way, I just don't know how,
    I don't want to jump every 2 days to a different OS as that wouldn't be a reliable test either ...

    I guess I could try: https://www.ultimatebootcd.com/

  • 0 in reply to Escape75

    You could setup a windows to go usb flash drive to run it off off (or external ssd).

Reply Children
  • 0 in reply to Jay Jay

    Assuming no issues after a few hours of prime95. Perhaps the nics are faulty?

    As this is a multiple interface device, you could just run one ethernet cable between 2 ports then set up iperf3 to generate traffic.

    The server and client will need to be bound to the separate interfaces using -B.  IIRC the format is -B {ip of interface).

    Lets say you assign 192.168.1.1 to interface 1, 192.168.1.2 to interface 2

    -B 192.168.1.1 will bind to interface 1, -B 192.168.1.2 will bind to interface 2.

    Run that for a period of time to see if it causes some sort of failure.

  • 0 in reply to Jay Jay

    Some good points, I will keep working in it ...

    My uptime is now 2 Days 17 Hours.

    I would think that if the issue related to a faulty NIC, it would also show up in pfSense, hmm!

    I wish I had access to another XG115 r3, could it be different BIOS settings, or something ...

  • 0 in reply to Escape75

    Uptime over 3 days and no issues with pfSense, but I did a memtest using ubcd539.iso and it froze!

    The only issue is that I did the multicore test which I've read can cause false positives, but this thing acually froze ...

    It was stuck on the above screen, only + was blinking but test time was not incrementing, I left it for a minutes just to see.

    So I'm thinking maybe it's bad RAM after all ?!?

    (Of course I wish I had another XG115 r3 to test the RAM using multiple CPU's to see if it also behaves this way)

  • 0 in reply to Escape75

    Sort of makes sense.  If the bad memory is never access then there's no issue. I bet *sense has a smaller memory foot print than utm/xg.  Same in windows. Prime95 has a test which uses up most of the memory. 

    Why wouldn't you run the mem test with all cores going? It should work.

    Choose the red option to fill the ram during test.  Choose the blue option to stress the cpu/cache only.

    I use both when validating a new build.

    Bought some teamgroup ram a while back from amz.  Two kits, 2x16gb each, 3600mhz.  Running both together at 3200mhz no problem.  Running both at 3600mhz I'd get weird stability issues. Eventually tracked it down to one of the kits needing more than the xmp set 1.35V ddr voltage. 1.40V.

    Didn't care much for this and exchanged the bad (questionable) kit. IMO memory should run at rated xmp settings without having to bump up ram voltage (mem controller might need a boost, but that's a different matter).  With the new kit, all 4 slots populated, 3600mhz 1.35v ran without any further issues.

  • 0 in reply to Jay Jay

    Gets even weirder, memtest86 actually passes, but memtest86+ freezes always at the same place, 2:38 minutes, hmm!

    I actually didn't realize I already run Mersenne Prime Test v28.x using blend which says lots of memory tested, and it passed.

  • 0 in reply to Escape75

    I now swapped the memory sticks between my XG115 r2 and r3, and the memtest86+ stopped again at the same time, weird!

    I will run r2 with the stick from r3 and I'll see if it screws up ...

  • 0 in reply to Escape75

    Try one stick in one slot then the other.

  • 0 in reply to Jay Jay

    There's only one slot on the r2 and r3 ...

  • 0 in reply to Escape75

    Isn't that a pickle!

    If it's not the memory module, then the memory slot or memory controller.  Neither of which you can replace.

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