Intel PRO/1000 PT Dual Port Server Adapter (82571) randomly stops working

  • Hi guys, my pci-e x4 dual port NIC is acting all screwy with PfSense 2.1.

    From a fresh boot/reboot the NIC works perfectly but all of a sudden will drop the connection on both ports.

    • Once the connection drops an 'ifconfig down/up' doesn't even bring it back to life.
    • A ping on the subnets of the downed card gives..
    ping: sendto: No buffer space available

    OS = PfSense 2.1 amd64
    Mobo/CPU = X7SPA-H-D525

    em0@pci0:1:0:0:	class=0x020000 card=0x135e8086 chip=0x105e8086 rev=0x06 hdr=0x00
        class      = network
        subclass   = ethernet
    em1@pci0:1:0:1:	class=0x020000 card=0x135e8086 chip=0x105e8086 rev=0x06 hdr=0x00
        class      = network
        subclass   = ethernet
    em0: flags=8843 <up,broadcast,running,simplex,multicast>metric 0 mtu 1500
    	options=4019b <rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum,tso4,vlan_hwtso>ether 00:15:17:12:b5:96
    	inet netmask 0xffffff00 broadcast
    	inet6 fe80::215:17ff:fe12:b596%em0 prefixlen 64 scopeid 0x1 
    	nd6 options=1 <performnud>media: Ethernet autoselect
    	status: no carrier
    em1: flags=8c43 <up,broadcast,running,oactive,simplex,multicast>metric 0 mtu 1500
    	options=4019b <rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum,tso4,vlan_hwtso>ether 00:15:17:12:b5:97
    	inet netmask 0xffffff00 broadcast
    	inet6 fe80::215:17ff:fe12:b597%em1 prefixlen 64 scopeid 0x2 
    	nd6 options=1 <performnud>media: Ethernet autoselect (10baseT/UTP <full-duplex>)
    	status: active</full-duplex></performnud></rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum,tso4,vlan_hwtso></up,broadcast,running,oactive,simplex,multicast></performnud></rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum,tso4,vlan_hwtso></up,broadcast,running,simplex,multicast> 

    See attached screenshot of PfSense's 'Status > Interfaces' page, the 'In/out errors' don't show up until the NIC stops working.

    I have tried these settings with no avail, though the problem did seem to take longer to happen.


    The problem happens even when I boot with nothing connected to the card; I'll check the interfaces page and see the 'In/out errors' start building.

    Please help, I'm going to try and get a ET chipset NIC for PfSense but want to make sure this card still works cause I'm going to use it in another FreeBSD machine. Thanks for the help!
    ![Screenshot from 2013-09-19 22:36:14.png_thumb](/public/imported_attachments/1/Screenshot from 2013-09-19 22:36:14.png_thumb)
    ![Screenshot from 2013-09-19 22:36:14.png](/public/imported_attachments/1/Screenshot from 2013-09-19 22:36:14.png)

  • Hi

    Since you say to have a native FreeBSD box available, maybe you can try building em(4) over there and load that module via loader.conf.local on pfSense to override the in-kernel em module.
    Maybe some backporting went wrong, that could help isolate issues. The PRO/1000 PT is quite old now and remember to see that NIC supported by the base driver in 8.3-RELEASE.

  • Good idea. I'll see if the newer em(4) makes a difference.

    The part that is tricky is I don't know what triggers the all of a sudden malfunctioning.  I'll just put my desktop on that card and keep a constant torrent stream going to see if I can trigger it.

  • We had the same issue but the death would be in 24 to 72 hours but similar symptoms.  A reboot was needed to get it back functional.  We tried the same tuning entries you did but did not help.  This was on Supermicro X8SIL boards with a slightly newer NIC but still used the em driver.

    Since this was production servers we moved to a box that uses the igb drivers instead and so far so good - knock on wood.

    Note we did see issues using LAGG on 2.1 even with the igb based NIC's but need to do some more testing to ensure it's not a switch issue.

  • So I compiled em-7.3.8 on a FreeBSD-8.3 virtual machine. I am successfully able to load that driver during boot for the virtual machine and everything seems to work.

    I moved the driver over to PfSense's /boot/modules, gave proper 555 permissions, and added 'if_em_load="YES"' to /boot/loader.conf.local.

    My PfSense would hang when booting on "configuring WAN interface". ifconfig in single user mode showed the interfaces seemed to work with the new driver, maybe I need to reconfigure my interfaces for pfsense? I can try it, I'll do it tonight when I have more time.

    What's weird is I'm pretty sure this NIC worked flawlessly with PfSense 2.0.1 when I used it over a year ago.

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