On Sat, Aug 23, 2025 at 9:16 PM R Tyler Croy <[email protected]> wrote:
>
> Howdy! I am hoping y'all could help me add more debugging to a FreeBSD 14.x
> based router/gateway. The device has two ix(4) NICs for the WAN/LAN.
> Periodically the device stops routing traffic entirely, but the machine is
> still online and interactive.
>
> What is particularly interesting is when I console into the machine I can
> still send traffic out from the device over the WAN interface, but anything
> that relies on the gateway seems to fail. I.e. routing to any host on the LAN
> interface (ix1) no longer works.
>
> `service routing restart` does nothing, `service netif restart` also does
> nothing. Downing the ix1 interface and bringing it back up does nothing.
>
> A reboot however does puts it back into working order.
>
>
> On one instance the console had a lot of arpresolve "cannot allocate llinfo"
> errors, chasing that rabbit led nowhere.
>
> Because this freezing behavior is intermittent but _does_ seem to correlate
> with higher network utilization, I'm wondering if there are debugging logs I
> can enable, or a way to inspect driver specific counters that could be
> overflowing, etc?
>
> I'm open to any recommendations that prevent me from setting up a cron every
> minute to validate connectivity or reboot the box! :)
>
>
> Cheers
I'd be interested in seeing your tcpdump and netstat -nr captures when
the problem is happening.
Might not turn up anything but _any_ information as scarce as it may
be indeed may be helpful.
I've got a couple of ixl devices that I beat the piss out of and
haven't had any issues:
ixl0: <Intel(R) Ethernet Controller X710 for 10GbE SFP+ - 2.3.3-k> mem
0xf3800000-0xf3ffffff,0xf4808000-0xf480ffff irq 24 at device 0.0 on
pci1
ixl0: fw 5.0.40043 api 1.5 nvm 5.05 etid 80002927 oem 1.261.0
ixl0: PF-ID[0]: VFs 64, MSI-X 129, VF MSI-X 5, QPs 768, I2C
ixl0: Using 1024 TX descriptors and 1024 RX descriptors
ixl0: Using 8 RX queues 8 TX queues
ixl0: Using MSI-X interrupts with 9 vectors
ixl0: Ethernet address: 3c:fd:fe:aa:df:a8
ixl0: Allocating 8 queues for PF LAN VSI; 8 queues active
ixl0: PCI Express Bus: Speed 8.0GT/s Width x4
ixl0: ixl_set_link: Error getting phy capabilities -7, aq error: 5
ixl0: SR-IOV ready
ixl0: netmap queues/slots: TX 8/1024, RX 8/1024
ixl1: <Intel(R) Ethernet Controller X710 for 10GbE SFP+ - 2.3.3-k> mem
0xf3000000-0xf37fffff,0xf4800000-0xf4807fff irq 24 at device 0.1 on
pci1
ixl1: fw 5.0.40043 api 1.5 nvm 5.05 etid 80002927 oem 1.261.0
ixl1: PF-ID[1]: VFs 64, MSI-X 129, VF MSI-X 5, QPs 768, I2C
ixl1: Using 1024 TX descriptors and 1024 RX descriptors
ixl1: Using 8 RX queues 8 TX queues
ixl1: Using MSI-X interrupts with 9 vectors
ixl1: Ethernet address: 3c:fd:fe:aa:df:a9
ixl1: Allocating 8 queues for PF LAN VSI; 8 queues active
ixl1: PCI Express Bus: Speed 8.0GT/s Width x4
ixl1: SR-IOV ready
# uname -a
FreeBSD nas.myhome 14.3-RELEASE FreeBSD 14.3-RELEASE
releng/14.3-n271432-8c9ce319fef7 GENERIC amd64
~Paul
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