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Re: interface send-q stall in 6.99.40?

On Mon, May 12, 2014 at 09:56:30PM +0200, Frank Kardel wrote:
> [...]
> traceroute packets from outside look like the are anwsered, but ICMP ECHO is
> not answered.
> The interface recovers with an ifconfig wmX down/up.
> While I do not know how to provoke this on wm (just happens once a week). I
> found the same phenomenon occurring on a Raspberry Pi when detaching the
> cable. The same symptoms occur there and ifconfig usmsc0 down/up will
> recover.
> Is anybody else seeing this?

I do, on a amd64 host with wm interface. Disabling TSO4 and TSO6 fixed the
problem for me.

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference

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