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Re: kernel crash with G5 Xserve and sungem driver

To: Chris Friesen <cfriesen@xxxxxxxxxxxxxxxxxx>
Subject: Re: kernel crash with G5 Xserve and sungem driver
From: Harald Welte <laforge@xxxxxxxxxxxx>
Date: Fri, 1 Oct 2004 21:31:53 +0200
Cc: netdev@xxxxxxxxxxx, linuxppc-dev@xxxxxxxxxx
In-reply-to: <415D8768.8080808@nortelnetworks.com>
References: <415D8768.8080808@nortelnetworks.com>
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On Fri, Oct 01, 2004 at 10:35:52AM -0600, Chris Friesen wrote:
> 
> I have patched 2.6.9-rc2 to run in 32-bit mode on the G5 Xserve.
> 
> When I compile a kernel with the tigon driver and the sungem driver both 
> built-in, the kernel crashes.  Removing the sungem driver fixes the problem.

Yes, I had that too.  The Problem is that the XServe G5 actually has two
sungem MAC's in the chipset but doesn't use them (and apparently their
interrupt lines are not connected either).  Apple just doesn't put them
in their OF tree, but on the PCI they are visible.

The ethernet chips actually used and connected to the ethernet sockets
on the back side are th3.

Just don't compile (or load) the sungem driver on those boxes.

> Is there a known incompatibility between the sungem driver and the Xserve?

yes.


-- 
- Harald Welte <laforge@xxxxxxxxxxxx>               http://www.gnumonks.org/
============================================================================
Programming is like sex: One mistake and you have to support it your lifetime

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