On 6 Jan 2005, at 00:01, Michael Swan wrote:

Hi all,

I've struggled for several days trying to get a Digium TDM04B 4-port
wxfco card working on a Dell 1U PowerEdge 750 machine running
Fedora Core 1. I finally got a call back from Digium who indicated that
there is a fundamental conflict between the card and the PowerEdge
having to do with PCI interrupts. Asterisk version is stable v1-0 12/29/04.


....snip...
3. issue "modprobe wcfxs" which immediately returns with no feedback, however
the four lights on the card go on and then the machine locks up completely, requiring
a power cycle to get it running again. After the power cycle, if I look in /var/log/messages
I see a long cycle of the following messages before reboot:
kernel: Dazed and confused, but trying to continue
kernel: Do you have a strnage power saving mode enabled?
kernel: Uhhuh, NMI received for unknown reason 20 on CPU 0


Yes, that's what I saw on the 1U HP DL140 I have. I gave up having concluded that
the problem was either:
1) the passive PCI Riser that is used in many 1U cases
2) the on-board server management ASIC (lights out managment, fan speed
etc)


It would be great to track this problem down.

Tim.

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