interface down, console output: igb3: TX(7) desc avail = 41, pidx = 308

[Sean Bruno]

On 03/24/17 19:33, Ben Woods wrote:
> Morning!
> 
> Since my recent update from FreeBSD12-current r313908 to r315466, I have
> noticed some strange behaviour with one of my network interfaces.
> 
> The interface seems to work fine for a day or so, but on a number of
> occasions I have found it to be down, and constantly outputting the
> following message to the console every few seconds:
> igb3: TX(7) desc avail = 41, pidx = 308
> igb3: TX(7) desc avail = 41, pidx = 308
> igb3: TX(7) desc avail = 41, pidx = 308
> ...
> 
> The problem is quickly worked around by issuing the following commands:
> # service netif stop igb3
> # service netif start igb3
> 
> Details of this particular network interface card:
> $ pciconf -lv | grep igb3 -A4
> igb3 at pci0:0:20:1: class=0x020000 card=0x1f418086 chip=0x1f418086 rev=0x03
> hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = 'Ethernet Connection I354'
>     class       = network
>     subclass  = ethernet
> 
> Any ideas what this could be, or how to investigate further?
> 
> Regards,
> Ben
> 
> --
> From: Benjamin Woods
> woodsb02 at gmail.com
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> 


Ben:

What kind of workload is this machine processing?  I'd like to try and
duplicate this failure if possible.

sean

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