Frequent crash of pfSense 2.3.2 in last couple of weeks

  • My v2.3.1 setup was running just fine (4.5 years now, started with v2.0.1) until August 2016 where I upgraded to v2.3.2.

    Since then I got multiple crashes (pfSense detects it, reboots, and offers to send it to developers) especially 3 in the last 24h.
    At first I thought that Snort was causing too much load but problem still occurs with Snort disabled.

    Once pfSense did not rebooted and stopped answering pings, this was displayed on physical terminal:

    4em1: discard frame w/o packet header

    Here are the running services:

    • darkstat (but disabled)

    • dhcpd

    • dpinger

    • ftp-proxy (but disabled)

    • ntpd

    • openvpn

    • sshd

    • unbound

    What metric could I check to see if problem is load-related?

    Here is last crash report.

    Setup is:
    Version: 2.3.2-RELEASE (i386) built on Tue Jul 19 13:09:39 CDT 2016 FreeBSD 10.3-RELEASE-p5
    CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz 2 CPUs: 1 package(s) x 1 core(s) x 2 HTT threads
    RAM: 3935 MiB


  • Forgot to say: server is a "Dell PowerEdge 750" with "em*" network cards (advertised as "Dual embedded Intel Gigabit NIC, Intel PRO/100S; Intel PRO/1000 MT; Intel
    PRO/ 1000MT Dual Port" in the PDF specs).

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