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Subject: [Bug 202680] Silent data corruption on em(4) interfaces
Date: Tue, 01 Sep 2015 12:30:44 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202680

--- Comment #3 from Dmitry Afanasiev <KOT@MATPOCKuH.Ru> ---
(In reply to Hiren Panchasara from comment #2)

As I wrote above, TSO is disabled on this system.
I got some problems with TSO before on another systems and I commented out
TCP_OFFLOAD in my kernel config.

# ifconfig | grep ^em
em0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu
1500
em1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
em2: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu
1500
em3: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500

# ifconfig | grep -i tso | wc -l
0

Also "ifconfig em0 -tso" do nothing, because TSO already disabled.

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