netdev - Re: data received but not detected

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Message-ID: <20080620182333.GA9342@2ka.mipt.ru>
Date:	Fri, 20 Jun 2008 22:23:34 +0400
From:	Evgeniy Polyakov <johnpol@....mipt.ru>
To:	Travis Stratman <tstratman@...cinc.com>
Cc:	netdev@...r.kernel.org
Subject: Re: data received but not detected

On Fri, Jun 20, 2008 at 01:17:06PM -0500, Travis Stratman (tstratman@...cinc.com) wrote:
> Let me clarify this again... I see the packet being sent at the expected
> time from the sender on the tcpdump. The packet does not show up in
> tcpdump or in the application on the receive side. When some other data
> is received by the receiver (i.e. ARP), the missing packet shows up in
> the tcpdump and in the application at the same time. So the delay shows
> up in the tcpdump as well. It seems to me that everything is pointing to
> the packet being in the DMA buffer but the controller driver not knowing
> anything about it.

Argh. Ok, then please check that napi polling is called and rx interrupt
happen for the driver.

-- 
	Evgeniy Polyakov
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