[CentOS] Lockup using stock r8169 on 4.8 in gigabit mode during heavy transfer on lan

[Jason Pyeron]

> -----Original Message-----
> From: centos-bounces at centos.org 
> [mailto:centos-bounces at centos.org] On Behalf Of Tim Nelson
> Sent: Friday, January 29, 2010 14:05
> To: CentOS mailing list
> Subject: Re: [CentOS] Lockup using stock r8169 on 4.8 in 
> gigabit mode during heavy transfer on lan
> 
> ----- "Jason Pyeron" <jpyeron at pdinc.us> wrote:
> > I have no output in the logs, but /etc/init.d/network restart fixes 
> > the issue.
> > I am rsync/scp (10GB) data from one 100MB Full duplex host 
> to an ASUS 
> > M3A78-EM (RTL8111B/C). It locks up around the 1.5GB Tx mark.
> > If I ethtool -s eth0 autoneg off speed 100 duplex full it does not 
> > happen again.
> > 
> > Ideas?
> 
> Part of the problem is that you mention r8169 kernel module 
> in your subject but your hardware is RTL8111B. Realtek 
> drivers are notorious for loading on improper hardware and 
> appearing to work properly. You need to get the proper driver 
> for your NIC. I've run into this countless times with the 
> r8169 driver and non-r8169 Realtek NICs.

Good to know. Thanks.

> 
> And, on a side note, Realtek may possibly be the worst NIC 
> out there, especially for server use. It may link at gigabit 
> speed, but I bet a trusty old 3Com or Intel Pro 100 will get 
> better throughput. Install a different NIC as fast as you can 
> and never look back.
> 

The system was not purchased for 1000MB use, but all of the switches are. We
just took the mobo that was cheapest/fastest to get a non-production up ASAP.

> --Tim
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> 




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