Subject: Re: watchdog timeout panic in e1000 driver

From: Kenzo Iwami <[email-masked]>
Date: Tue, 24 Oct 2006 18:01:44 +0900

Hi,

Thank you for your comment.

> This panic report falls in the category "how hard can I break my system as root". 
> Explicitly abusing the system performing restricted calls depletes resources and 
> harasses the sw lock (in this case). The reason that the driver attempts to wait that 
> long is that in the case of ESB2 systems, the SPI interface to the EEPROM can be slow, 
> thus taking a long time to complete certain commands.

This problem originally occurred in a very large cluster system using snmp
for server management. About two servers panicked each day. The program I sent
is to reproduce this problem in a very short time. It does occur under normal
load when there is a lot of servers.

-- 
  Kenzo Iwami ([email-masked])