System freezes with Kernels 2.6.18 and up

Hi,

I am experiencing complete system freezes on a 
new computer - won't even acknowledge pings - and 
was wondering if anyone else has had a similar 
experience.  This seems to be a general problem, 
but using comedi drivers increases the frequency 
dramatically.  Also, tvtime, in conjunction with 
my app, kills it 100% of the time within 30 s - 
xawtv works fine.  I have found nothing that 
seems relevant logged in /var/log/kern.log, but 
I'm pretty much a newbie and wouldn't necessarily 
know what to look for.  All of these apps work 
just fine on an older P2 with a 2.6.17 kernel 
(rtai v. 3.4), but I can't get the older kernel 
to recognize my SATA2 disc on the new machine.

Equipment:

Dell Precision 390, P4
Dell Bios 2.1.2, 2.0.8
Kernel 2.6.19, patched with RTAI v. 3.5
(freezes happen even without rtai modules installed)
Debian Etch, or Sarge (Kenshi Muto backported kernel), or Ubuntu 6.10
ni_pcimio

Thanks,
John



John F. Wesseling, Ph.D.
Departamento de Neurociencias
Centro de Investigación Médica Aplicada (CIMA)
Pio XII, 55
31008 Pamplona
Spain
Phone +34 948 19 47 00 ext. 2005
(if you don't speak Spanish, when the recording comes on,
just enter the extension and wait)
Fax     +34 948 19 47 15

Received on 2007-03-22Z15:34:36