network failures w. r8169 (RTL8111/RTL8168B)

network failures w. r8169 (RTL8111/RTL8168B)

[Jens Stroebel]

				Hello.

I am trying to get a RTL8111 (RealTek ethernet controller) running w.
the r8169 kernel module. I am using kernel 2.6.19.2 on a
LinuxFromScratch system; the motherboard on which said RTL8111 sits is
an Asus P5B.

lspci says (regarding the ethernet chip):
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)

During the use of network connections, we experience "network transfer
stops" during which a transfer seems to stall completely for many
seconds, after which the transfer runs as if nothing happened.

This is reproducable everytime w. 
 svn co http://svnserver/svn/tree
   (hangs VERY LONG)

and w. LWP::Parallel::UserAgent. With the latter, I fired 100 runs of
100 requests, 7 "clients" trying parallel requests.
Of these 100 runs, at least one, sometimes 2 stall for about 90 secs,
after which the run continues and ends successfully, although the time
of more than 90 secs for 100 requests can't be called sucessful, really.

Both the subversion checkout and the performance testing via
LWP::Parallel::UserAgent run as expected (-> without stalling somewhere)
on our other machines which do not have RTL8111.
They also run as expected with kernels 2.6.18.x and
the realtek driver r1000.

With kernel 2.6.19.x, the r1000 driver is unusable as it has enormous
packet loss (used version: r1000_v1.05.tgz).
The r8169 SEEMS to have no packet loss (ping, ping -f) but above
mentioned phenomenon seems to indicate otherwise.

Has someone experienced similar effects w. r8169.ko and RTL8111?
(I searched the archives but didn't quite find anything like this)

I also tried kernel 2.6.20-rc5 to see if the problem eventually went
away, but unfortunately the scenario remains the same.

		Greets,
		  Jens
-- 
drifter@bcsoft.de
			23.....56.......drifting 

Re: network failures w. r8169 (RTL8111/RTL8168B)

[Jens Stroebel]

On Mon, Jan 15, 2007 at 03:38:57PM +0100, Jens Stroebel wrote:

> During the use of network connections, we experience "network transfer
> stops" during which a transfer seems to stall completely for many
> seconds, after which the transfer runs as if nothing happened.
> 

Addition:

Trying to debug the scenario a little, I used tcpdump to maybe find out
what/where things get lost.

This didn't work, as running tcpdump on !either server or client! made
the symtom go away (..?)

		Greets,
		  Jens
-- 
drifter@bcsoft.de
			23.....56.......drifting 

Re: network failures w. r8169 (RTL8111/RTL8168B)

[danylux79]

Hello, sorry for my bad english :-)
i have your problem, i have buy a jetway n92 330 mini-itx board, this board
have rtl 8111c gbit port.
When i have install endian this port don't work but there is work around.

Plese follow this post : http://efwsupport.com/index.php?topic=1132.0

there is a compiled driver for endian.

you download it, and after follow the step : option 1 or option 2 for
install.

for my the option 2 don't work. but the option 1 work fine...the link is
stable, but there is a problem.
when you go in endian via webgui you don't enter in the menu named state-->
state of the network because there is a various problem --the gui not
responding or the interface go down...
another the sistem don't se the traffic meter for this port. but the other
services work fine for me .

Best regards


Jens Stroebel-2 wrote:
> 
> 
> 				Hello.
> 
> I am trying to get a RTL8111 (RealTek ethernet controller) running w.
> the r8169 kernel module. I am using kernel 2.6.19.2 on a
> LinuxFromScratch system; the motherboard on which said RTL8111 sits is
> an Asus P5B.
> 
> lspci says (regarding the ethernet chip):
> 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B
> PCI Express Gigabit Ethernet controller (rev 01)
> 
> During the use of network connections, we experience "network transfer
> stops" during which a transfer seems to stall completely for many
> seconds, after which the transfer runs as if nothing happened.
> 
> This is reproducable everytime w. 
>  svn co http://svnserver/svn/tree
>    (hangs VERY LONG)
> 
> and w. LWP::Parallel::UserAgent. With the latter, I fired 100 runs of
> 100 requests, 7 "clients" trying parallel requests.
> Of these 100 runs, at least one, sometimes 2 stall for about 90 secs,
> after which the run continues and ends successfully, although the time
> of more than 90 secs for 100 requests can't be called sucessful, really.
> 
> Both the subversion checkout and the performance testing via
> LWP::Parallel::UserAgent run as expected (-> without stalling somewhere)
> on our other machines which do not have RTL8111.
> They also run as expected with kernels 2.6.18.x and
> the realtek driver r1000.
> 
> With kernel 2.6.19.x, the r1000 driver is unusable as it has enormous
> packet loss (used version: r1000_v1.05.tgz).
> The r8169 SEEMS to have no packet loss (ping, ping -f) but above
> mentioned phenomenon seems to indicate otherwise.
> 
> Has someone experienced similar effects w. r8169.ko and RTL8111?
> (I searched the archives but didn't quite find anything like this)
> 
> I also tried kernel 2.6.20-rc5 to see if the problem eventually went
> away, but unfortunately the scenario remains the same.
> 
> 		Greets,
> 		  Jens
> -- 
> drifter@bcsoft.de
> 			23.....56.......drifting 
> -
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> 

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