Random reboots

  • No luck with the console messages. Had a reboot this morning. Nothing shown on the console other than the bootup.😞

    Guess I'll give the clean install a try next?

  • Is it possible that a latency alarm could trigger this behavior?

    Looking through all my logs I see a latency alarm occurred about the same time as the reboot.

    Sep 14 02:59:58	dpinger		send_interval 500ms loss_interval 2000ms time_period 60000ms report_interval 0ms data_len 0 alert_interval 1000ms latency_alarm 500ms loss_alarm 30% dest_addr bind_addr identifier "WAN_DHCP "
    Sep 14 02:59:51	syslogd		kernel boot file is /boot/kernel/kernel

    Time stamp shows the reboot happened first though, so maybe the latency is being caused by the boot process???

    Edit: Nevermind. Looks like I read the log entry wrong. Now that I’ve had a little sleep I see that it’s just showing the current settings.

  • Netgate Administrator

    Yes that is logged when apinger is started with whatever settings are configured.

    Nothing in the logs, no error reports and nothing on the console looks like either a hardware issue or a power problem.

    I assume nothing else is rebooting at that time though.


  • No. Nothing else rebooting. I doubt it’s an external power problem. The unit is powered via a rack mounted APC ups, so power should be relatively clean.

  • Netgate Administrator

    Over heating then maybe, the PSU brick or the CPU.


  • I believe this is the cpu temp. It seems to always run a little warm to me (between 64 and 70C). Not sure what a normal temp would be on the 3100.


    No idea about power supply temps.

  • @stephenw10 said in Random reboots:

    If you have not re-installed it clean I would certainly try that first:

    Finally got a chance to do the re-install. Install failed at first. The USB port is extremely hard to insert a flash drive into and I didn't have it fully inserted. After a good hard push and another reboot I think it went ok. We'll see what happens.

  • Netgate Administrator

    That temperature looks normal for the 3100. Nothing I haven't seen here.


  • @stephenw10 said in Random reboots:

    That temperature looks normal for the 3100. Nothing I haven't seen here.


    Thanks. I might change my set points for temp alerts so that it’s not in the yellow as much.

  • I'm also having the same issue in a 3100. Random restarts. I'm suspecting temperature. It constantly runs at 70+. I've seen 77-78 at a point. Couldn't get to log historical data of temperature though.

  • @dbinoj said in Random reboots:

    Couldn't get to log historical data of temperature though.

    Yeah, I'd lover to know how to do this as well. The clean install seems to have fixed my issue though [fingers crossed].

  • LAYER 8 Netgate

    Is it sitting on top of something hot? The base plate of the 3100 is a passive heat sink so if it doesn't have decent airflow it would likely warm up.

  • @derelict Yeah, it was on top of a mac mini and ambient temp is ~32c. Now after moving from the mac mini's top, temperature is at 67c.

    At what temperature the 3100 resets itself?

  • Netgate Administrator

    I have not personally ever seen it reset due to overheating even when load testing.
    I know that during manufacturer testing they were run in up to 65°C ambient so I would expect quite a bit hotter than what you're seeing.


  • If overheating is indeed the root cause, I'm very concerned that the sg-3100 does not have an adequate heatsink. Are owners expected to place the device on a ice block? There's barely 1/8 of an inch clearance with the rubber feet. How are owners supposed to get airflow from underneath?

  • @msf2000
    I think it’s unlikely that my reboots were due to overheating since a clean install seems to have corrected the problem. Still keeping my fingers crossed, but it’s been 2 weeks with no reboots.

  • Netgate Administrator

    This post is deleted!

  • Netgate Administrator


    They are not and there is no problem as far as I know. As I said they were tested to far higher temperatures.


  • @stephenw10 hopefully they are not. I've never had a reboot after I moved mine from top of a Mac mini to a rack tray. So I thought it must be the temperature. If not, that reboot will be a mystery for me because there is no logs.

  • I thought this issue had resolved itself but looks like I was wrong. Just had another unexpected reboot. Nothing in the logs and nothing captured via serial console messages.

    Oct 14 08:10:12	php		/usr/local/pkg/apcupsd_mail.php: Message sent to walterstarks@icloud.com OK
    Oct 14 08:11:25	apcupsd	33988	Communications with UPS restored.
    Oct 14 08:11:27	php		/usr/local/pkg/apcupsd_mail.php: Message sent to walterstarks@icloud.com OK
    Oct 14 13:10:02	snort	33227	invalid appid in appStatRecord (4385)
    Oct 14 14:25:00	snort	33227	invalid appid in appStatRecord (4385)
    Oct 14 16:30:01	php-fpm	22709	/diag_backup.php: Successful login for user 'backup' from: (Local Database)
    Oct 14 18:24:06	syslogd		kernel boot file is /boot/kernel/kernel
    Oct 14 18:24:06	kernel		Copyright (c) 1992-2018 The FreeBSD Project.
    Oct 14 18:24:06	kernel		Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
    Oct 14 18:24:06	kernel		The Regents of the University of California. All rights reserved.
    Oct 14 18:24:06	kernel		FreeBSD is a registered trademark of The FreeBSD Foundation.

    No idea where to go from here. ❓

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