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Re: Fw: [Bugme-new] [Bug 3765] New: Network link down, when writting to

To: Andrew Morton <akpm@xxxxxxxx>
Subject: Re: Fw: [Bugme-new] [Bug 3765] New: Network link down, when writting to sata disk AND network in use
From: Surakshan Mendis <surakshan@xxxxxxxxxxxx>
Date: Fri, 19 Nov 2004 20:06:39 +0800
Cc: netdev@xxxxxxxxxxx, bugtracker@xxxxxxxxxxxx
In-reply-to: <20041117211822.243aa8bd.akpm@xxxxxxxx>
References: <20041117211822.243aa8bd.akpm@xxxxxxxx>
Sender: netdev-bounce@xxxxxxxxxxx
FYI 

I've just added a realtek based card using the 8139too kernel module.
The "issue" mention below DOES NOT happen with this network card. Only
with the onboard b44 card!



On Wed, 2004-11-17 at 21:18 -0800, Andrew Morton wrote:
> 
> Well this is novel.  I'd be suspecting a hardware problem.  Are you sure
> the power supply isn't overloaded, or in need of replacement?
> 
> 
> Begin forwarded message:
> 
> Date: Wed, 17 Nov 2004 21:13:36 -0800
> From: bugme-daemon@xxxxxxxx
> To: bugme-new@xxxxxxxxxxxxxx
> Subject: [Bugme-new] [Bug 3765] New: Network link down, when writting to sata 
> disk AND network in use
> 
> 
> http://bugme.osdl.org/show_bug.cgi?id=3765
> 
>            Summary: Network link down, when writting to sata disk AND
>                     network in use
>     Kernel Version: linux-kernel 2.6.9
>             Status: NEW
>           Severity: high
>              Owner: other_other@xxxxxxxxxxxxxxxxxxxx
>          Submitter: bugtracker@xxxxxxxxxxxx
> 
> 
> Distribution: Gentoo
> 
> Hardware Environment: 
> P4 2.66ghz
> Motherboard: ASUS P4PE (with onboard lan)
> Promise Sata150 TX4 PCI (sata expansion card)
> 
> Software Environment: 
> Kernel 2.6.9
> - onboard LAN: driver in use
> - "Broadcom 4400 ethernet support" compiled into kernel
> 
> - Promise Sata150 TX4 PCI (sata expansion card)
> - Driver "Promise SATA TX2/TX4 support" compiled into kernel
> - 200GB Western Digital SATA drive attached to PCI sata card
> 
> Problem Description:
> If data is being copied to the SATA drive (eg from another DISK which is on
> motherboard IDE controller) AND I start a network data transfer where data is
> goung through the Broadcom lan the following occurs (from kernel log)
> 
> Nov 18 11:43:10 synapse b44: eth0: Link is down.
> Nov 18 11:43:15 synapse b44: eth0: Link is up at 100 Mbps, full duplex.
> Nov 18 11:43:15 synapse b44: eth0: Flow control is on for TX and on for RX.
> Nov 18 11:43:19 synapse b44: eth0: Link is down.
> Nov 18 11:43:21 synapse b44: eth0: Link is up at 100 Mbps, full duplex. 
> 
> Link keeps going up and down, as long as there's data movment from the SATA
> drive, and a network movement (network download doesn't have to be saving to 
> the
>  sata drive)
> 
> I've disabled APCI, problem persits.
> 
> Steps to reproduce:
> 1. copy data to Sata drive CONNECTED to PCI controller
> 2. Download file from network via onboard LAN, doesn't matter which drive you
> save it
> 3. Onboards lan "link" goes up and down, causing disruption to network useage.
> 
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> 
> 



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