Re: Network connection drops in Squeeze

["David A. Parker" <dparker@utica.edu>]

On 03/09/2011 04:30 PM, Celejar wrote:
> On Wed, 09 Mar 2011 14:11:41 -0500
> "David A. Parker"<dparker@utica.edu>  wrote:
>
> > Hello,
> >
> > I have an HP 6005 workstation with a fresh install of Debian Squeeze,
> > and I am seeing some very strange networking behavior.  The network
> > connection seems to drop periodically, but it comes back if you hit a
> > key on the keyboard plugged into the machine.
> >
> > Here's the general way it happens:
>
> ...
>
> > I can reproduce this with pretty good consistency.  It seems to happen
> > any time I am doing something fairly network intensive (large file
> > transfer, X11 forwarding, etc.)  This is a clean command-line-only
> > install of Squeeze (64-bit) with the default kernel (2.6.32-5-amd64).
>
> I doubt I'll be able to help, but just to clarify: you're pretty
> certain that the problem doesn't occur when the connection is not under
> load, such as during an ordinary interactive ssh session?
>
> One might suspect some sort of sleep / suspend behavior, but I
> really don't know.

Thanks Celejar.

So far, this has never happened randomly during an SSH session.  It 
always seems to be triggered by some sort of network activity.  What's 
especially frustrating is that absolutely nothing gets logged in the 
system logs when this happens.

I originally suspected that the network adapter was being put to sleep, 
but that doesn't explain why I can sustain a normal SSH connection for 
long periods of time.  I can even leave the computer on overnight and 
nothing stops working.  If it were a sleep or suspend issue, I would 
think it would happen when the interface was idle, but I haven't ruled 
this out.

Does anyone know what I should check to see if this is some sort of 
power management issue?  I stopped acpid, but the behavior persists.

    Thanks!
    Dave