From: mailinglists@erwinrol•com (Erwin Rol)
To: linux-arm-kernel@lists•infradead.org
Subject: at91sam9260 MACB problem with IP fragmentation
Date: Thu, 06 Dec 2012 16:15:32 +0100 [thread overview]
Message-ID: <50C0B694.60408@erwinrol.com> (raw)
In-Reply-To: <50C09D2E.8050608@atmel.com>
Hey Nicolas,
On 6-12-2012 14:27, Nicolas Ferre wrote:
> Erwin,
>
> On 12/06/2012 12:32 PM, Erwin Rol :
>> Hello Nicolas, Havard, all,
>>
>> I have a very obscure problem with a at91sam9260 board (almost 1 to 1
>> copy of the Atmel EK).
>>
>> <snip>
>>
> [..]
>
> It seems that Matteo has the same behavior: check here:
> http://www.spinics.net/lists/netdev/msg218951.html
The difference seems to be that in Matteo's case the receiving stalls.
In my case it is the sending that stalls. I see the UDP datagram in
userspace and the sendto call also returns without error, but the data
does not end up on the network (until the next packet is send)
> I am working on the macb driver right now, so I will try to reproduce
> and track this issue on my side.
That would be really great, and thank you for the quick reply. If you
have anything that I should try or test on my hardware just let me know.
BTW: A quick check on a at91sam9263 board did not show the problem. I
will try to verify if it really does work on a 9263, cause maybe it just
more rare on a 9263.
- Erwin
next prev parent reply other threads:[~2012-12-06 15:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <50C08233.9030905@erwinrol.com>
2012-12-06 13:27 ` at91sam9260 MACB problem with IP fragmentation Nicolas Ferre
2012-12-06 15:15 ` Erwin Rol [this message]
2012-12-20 9:17 ` Erwin Rol
2012-12-20 17:51 ` Nicolas Ferre
2013-02-12 10:08 ` [PATCH] net/macb: fix race with RX interrupt while doing NAPI Nicolas Ferre
2013-02-13 18:36 ` David Miller
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