Date: Wed, 9 Aug 2006 19:19:17 +0200 From: Stanislaw Halik <sthalik@tehran.lain.pl> To: freebsd-stable@freebsd.org Subject: Re: Network often not responding Message-ID: <20060809171917.GA32202@localhost.localdomain> In-Reply-To: <44D9ECB9.5020500@goodforbusiness.co.uk> References: <496795293.20060809195310@pacific.net.id> <44D9ECB9.5020500@goodforbusiness.co.uk>
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On Wed, Aug 09, 2006, Dominic Marks wrote:
>> Aug 9 15:09:16 cache kernel: xl0: transmission error: 90
>> Aug 9 15:09:16 cache kernel: xl0: tx underrun, increasing tx start
>> threshold to 120 bytes
> dc%d: TX underrun -- increasing TX threshold The device generated a
> transmit underrun error while attempting to DMA and transmit a packet.
> This happens if the host is not able to DMA the packet data into the
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> NIC's FIFO fast enough. The driver will dynamically increase the
~~~~~~~~~~~~~~~~~~~~~~
> trans- mit start threshold so that more data must be DMAed into the
> FIFO before the NIC will start transmitting it onto the wire."
> So it would seem like the card cannot keep pace with the system. What NICs
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> have you tried?
Basing on the quoted text, isn't it the opposite?
--
I saw `cout' being shifted "Hello world" times to the left and stopped right
there. -- Steve Gonedes
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