Subject: Re: de looping in interrupt on heavy load
To: William Coldwell <>
From: Bill Studenmund <>
List: current-users
Date: 03/03/1998 21:26:21
On Tue, 3 Mar 1998, William Coldwell wrote:

> What we're seeing is it's spinning inside of the tulip_rx_intr code jumping  
> into malloc, eintrnames, m_free, and some other vm and kernel calls before  
> coming right back to the interrupt.  Now, I'm not a DDB jock, and I don't  
> play one on TV, so I can't really be of much more help :/
> I _believe_ this started about the time that Matt Thomas moved the de driver  
> to the bus_dma architecture, and I suspect something got biffed.  Anyway,  
> this is really a pisser, because I can't even FTP the 1.3 archive to bring  
> the system back up since it tickles it.  It only happens under heavy network  
> load, and there doesn't seem to be a specific amount of time (the worse kinds  
> to track down).
> Frustrated as hell.  Is anyone else seeing this with the de 21040?

Charles sent a message out on something close to this morning. I'll send
it in a private EMail (the archives need only one copy). 

Take care,