Bug#516785: Bug #516785: linux-image-2.6.26-1-sparc64-smp: [sparc] SunFire480R cassini network driver kernel panic

[Hermann Lauer <Hermann.Lauer@iwr.uni-heidelberg.de>]

On Mon, Jun 04, 2012 at 04:35:57PM +0200, Hermann Lauer wrote:
> On Sat, Jun 02, 2012 at 03:57:54AM +0800, Aron Xu wrote:
> > I have remote ssh access (root) to that running SunFire 408R, what can
> > I do to help you?
> ...
> > PS: I've disabled the rename function of udev and set hwaddress in
> > /etc/network/interfaces directly to work around the always changing
> > mac address.
> 
> How to disable the renaming ? Will try to set the hwaddr during the next test.
...
> Wondering now if having only one cpu board with 2 cpus may be the problem.

No, a second machine of the same type is available now for testing - and also crashing after
loading of the cassini driver. Here lspci and cpuinfo:

0000:00:06.0 IDE interface: Silicon Image, Inc. PCI0646 (rev 07)
0002:00:01.0 Bridge: Oracle Corporation RIO EBUS (rev 01)
0002:00:01.3 USB Controller: Oracle Corporation RIO USB (rev 01)
0002:00:02.0 Ethernet controller: Oracle Corporation Cassini 10/100/1000 (rev 11)
0003:00:01.0 Ethernet controller: Oracle Corporation Cassini 10/100/1000 (rev 11)
0003:00:02.0 SCSI storage controller: QLogic Corp. QLA2200 64-bit Fibre Channel Adapter (rev 05)

cpu		: TI UltraSparc III+ (Cheetah+)
fpu		: UltraSparc III+ integrated FPU
pmu		: ultra3+
prom		: OBP 4.17.1 2005/04/11 14:27
type		: sun4u
ncpus probed	: 4
ncpus active	: 4
D$ parity tl1	: 0
I$ parity tl1	: 0
cpucaps		: flush,stbar,swap,muldiv,v9,ultra3,mul32,div32,v8plus,vis,vis2
Cpu0ClkTck	: 0000000035a4e900
Cpu1ClkTck	: 0000000035a4e900
Cpu2ClkTck	: 0000000035a4e900
Cpu3ClkTck	: 0000000035a4e900
MMU Type	: Cheetah+
State:
CPU0:		online
CPU1:		online
CPU2:		online
CPU3:		online

This machine has 24G RAM, 16 on one board and 8 on the other. The first machine has one board with 16G.
So it may be a memory issue, as Aron has only 14G. Other maybe the OBP version - here is the latest installed
on all machines. Just to rule out a firmware issue:

$ md5sum /lib/firmware/sun/cassini.bin 
fd11e09e8e61694353f12b3de376292a

Any further ideas to debug deeper ?

Thanks,
  Hermann