Strange system freezes - Help!

[nosp]

On Tue, 2003-11-04 at 22:56, Erik Williamson wrote:
> Hi All,
> 
> I've got a machine with the following description:
> Dell Precision 530
> Fully patched fedora
> Dual P4
> Alteon Gigabit nic
> Services running:  sshd, vsftpd, apache
> 
> Periodically, it goes (mostly) dead.  It looks like this:
> I can ping it.
> I can nmap it, and the services are all detected
> I cannot connect to any of the servers via a client (ie, ssh, ncftp, moz)
> I can telnet to the appropriate ports, and get connected. (I forget how to 
> make an http server spew to a telnet client, but I've done it before)
> Both the terminal (through kvm) and console (serial, through to a 
> concentrator on another machine) are dead in the water.

Are you using an nvidia video card with the binary drivers?  This
happens to me sometimes, and I suspect the video drivers.  When I
ssh/telnet into the "hung" box, X is taking up 100% of cpu.  If I do
this everything starts to work again:

---
killall X      [just to be sure]
killall -9 X
init 3
[wait 5 secs]
init 5
---