eth0: transmit timed out / Tx hung

[John LeMay]

This is a multi-part message in MIME format.
--------------8582AF6EEA536D462BBFC0AF
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Simon Garner wrote:
> 
> Hi there,
> 
> For 10 hours last night my server was down again with the problem below.
> Please help me!
> 
> -------------- (original post to linux-tulip-bug follows)
> 
> I have a colocated server running RH6.0, with a Compex FreedomLine NIC
> (DS21143 tulip).
> 
> Last night the server was unavailable for several hours, and when it came
> back I found this in the messages log:
> 
> Jan 31 20:27:41 hyperion kernel: eth0: Tx hung, 11881766 vs. 11881762.
> Jan 31 20:27:41 hyperion kernel: eth0: 21140 transmit timed out, status
> f0360000, SIA 000000c6 ffff0000 fffbff7f 8ff00008, resetting...
> Jan 31 20:27:41 hyperion kernel: eth0: transmit timed out, switching to
> 100baseTx-FD media.
> Jan 31 20:28:41 hyperion kernel: eth0: Tx hung, 11881798 vs. 11881786.
> block.
> 
> I have restarted the machine and using tulip-diag it appears to be operating
> in 10baseT half-duplex mode:
> 
> tulip-diag.c:v1.19 10/2/99 Donald Becker (becker@cesdis.gsfc.nasa.gov)
> Index #1: Found a Digital DS21143 Tulip adapter at 0xd000.
>  Port selection is 10mpbs-serial, half-duplex.
>  Transmit started, Receive started, half-duplex.
>   The Rx process state is 'Waiting for packets'.
>   The Tx process state is 'Idle'.
>   The transmit threshold is 72.
>   The NWay status register is 00005242.
>   Internal autonegotiation state is 'Negotiation complete'.
> 
> This does not seem right to me. Could it be autosensing incorrectly? It
> should at least be full-duplex. The card is 100Mbps but its possible the
> colo network is only 10Mb.

Could be. From my experience, always hardcode the adapter to the speed
and duplexity you want. Typically cards will negotiate with a 100Mbit/s
FDX switch at only 100Mbit/s HDX when set to auto.

> 
> Also I get a lot of collisions. Is this normal? Watching 'ifconfig' I get
> about 1 collision per second on eth0.

If you are in at HDX in a FDX port, this would be a logical result.
 

-- 
John LeMay Jr.
Senior Enterprise Consultant
NJMC, LLC.

The rules have changed... Get paid to surf the web!!!
http://www.alladvantage.com/go.asp?refid=bdc893
--------------8582AF6EEA536D462BBFC0AF
Content-Type: text/x-vcard; charset=us-ascii;
 name="jlemay.vcf"
Content-Transfer-Encoding: 7bit
Content-Description: Card for John LeMay
Content-Disposition: attachment;
 filename="jlemay.vcf"

begin:vcard 
n:LeMay Jr.;John
tel;fax:732 244-3351
tel;work:732 785-2525
x-mozilla-html:FALSE
url:http://www.njmc.com
org:NJMC, LLC.
adr:;;10 Fella St.;Howell;NJ;07731;USA
version:2.1
email;internet:jlemay@njmc.com
title:Senior Enterprise Consultant
x-mozilla-cpt:;-1792
fn:John LeMay Jr.
end:vcard

--------------8582AF6EEA536D462BBFC0AF--

-------------------------------------------------------------------
To unsubscribe send a message body containing "unsubscribe"
to linux-tulip-bug-request@beowulf.org