[Bug 219428] em network driver broken in current

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219428

Russell Haley <russ.haley at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |russ.haley at gmail.com

--- Comment #25 from Russell Haley <russ.haley at gmail.com> ---
I've been having intermittent network problems on a SuperMicro Server. My
computer is exhibiting a similar pathology as Mr. Sergey V. Dyatkos'.

I'm serving Minecraft to an internal network over a dlink powerline ethernet
modem. It seems over the last few days the powerline network has been going up
and down, which eventually causes the "TX(5) desc avail = 1024" error. My
system uses the igb driver.

russellh at sylvester:~> uname -a
FreeBSD sylvester 12.0-RELEASE-p3 FreeBSD 12.0-RELEASE-p3 r346787 GENERIC 
amd64

russellh at sylvester:~> pciconf -lv
#SNIP#
igb0 at pci0:2:0:0:        class=0x020000 card=0x10c915d9 chip=0x10c98086 rev=0x01
hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82576 Gigabit Network Connection'
    class      = network
    subclass   = ethernet

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