hdc: lost interrupt

[David F Barrera <dfbp@us.ibm.com>]

I am seeing a kernel message, "hdc: lost interrupt", when running LTP on 
the xen0 domain.  The first time I saw the 'kernel: hdc: lost interrupt' 
in /var/log/messages, I was running LTP on both xen0 and xenU domains.  
The xenU domain was totally hung at this point. Suspecting a setup 
error, I re-checked the installation and reran LTP on xen0 alone, 
without having anything running on xenU. Again, I saw the error. To rule 
out a hardware problem, I decided to run the same tests on a regular 
kernel from kernel.org (2.6.10) and on the RHEL 4 kernel from Red Hat, 
both of which ran without showing the error.  I don't know what to make 
of it.  I am not suspecting a hardware error since the message does not 
show up when running on non-xen kernels.

Setup
Platform: RHEL 4 Beta 3
Hw: IBM xSeries 200, with a 866Mhz Pentium III and 512MB RAM,
       IDE drive: 00:07.1 IDE interface: VIA Technologies, Inc. 
VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)

The machine is not the most modern, but it has worked reliably.

Regards,

David Barrera


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