Re: Broken Firewire 400/SCSI on ppc Powerbook5,8

Hi Stefan,
Hi All

On Sat, Aug 19, 2006 at 11:13:24AM +0200, Stefan Richter wrote:

          [ ... ]

The fact that Linux on the AlBook gets at least as far as "ieee1394: 
Error parsing configrom for node 0-00:1023" indicates that not all hope 
is lost. If you have got the time, compile the 1394 drivers for verbose 
logging and send the log. Don't crosspost the log if it gets too big.

Some tests on the Alubook:

I compiled a fresh git kernel now with verbose ieee logging turned on.

$ uname -r
2.6.18-rc4-ieeeverbose-gef7d1b24-dirty

$ zgrep 4_VERBOS /proc/config.gz 
CONFIG_IEEE1394_VERBOSEDEBUG=y


Before starting the FW disk I removed all ieee drivers I thought could
be relevant, with this little script:

-------------------------
#!/bin/sh -x
/bin/sh -n /home/shorty/scripts/scsi.stop.sh; \
rmmod raw1394; \
rmmod eth1394;
rmmod ohci1394; \
rmmod sbp2; \
rmmod ieee1394
---------------------------------------



Then, with the FW disk connected to the alubook, but *not yet* powered
on by the latter via a switch at the enclosure which obviously, when
switched on, feeds the current to the firewire disk, thus switching it on:

-----------------------------------
#!/bin/sh -x
/bin/sh -n /home/shorty/scripts/scsi.start.sh ; \

modprobe ieee1394 disable_irm=0; \
sleep 2; \
modprobe ohci1394; \
sleep 2; \
modprobe sbp2; \
sleep 2; \
modprobe raw1394; \
sleep 2
chown root.shorty /dev/raw1394
sleep 4; \
ls /dev/sda


-------------------------------



Only after running the latter script, I switch on the FW disk. The log
for these moments covering about 60 seconds is here:

wolfgangpfeiffer.com/kern.log.when.fw.disk.is.switched.on.txt

Then, some time later on with no /dev/sda available, I run gscanbus,
forcing a bus reset. The log, again covering about 60 seconds is here:

wolfgangpfeiffer.com/kern.log.with.gscanbus.after.failed.fw.connection.txt


Again a bit later I click the 3 icons on the gscanbus window:

Clicking
"Unknown 
Linux - ohci1394"

------------------------------------------------------
SelfID Info
-----------
Physical ID: 2
Link active: Yes
Gap Count: 63
PHY Speed: Unknown
PHY Delay: <=144ns
IRM Capable: Yes
Power Class: -1W
Port 0: Not connected
Port 1: Connected to child node
Port 2: Not connected
Init. reset: Yes

CSR ROM Info
------------
GUID: 0x001451FFFE3148BE
Node Capabilities: 0x000083C0
Vendor ID: 0x00001451
Unit Spec ID: 0x0000005E
Unit SW Version: 0x00000001
Model ID: 0x00000000
Nr. Textual Leafes: 1

Vendor: Unknown
Textual Leafes: 
Linux - ohci1394

AV/C Subunits
-------------
N/A
-------------------------------------------------





Clicking

" <question mark>
S400 Unknown":

------------------------------------------
SelfID Info
-----------
Physical ID: 1
Link active: No
Gap Count: 63
PHY Speed: S400
PHY Delay: <=144ns
IRM Capable: No
Power Class: -1W
Port 0: Not connected
Port 1: Connected to parent node
Port 2: Connected to child node
Init. reset: No

CSR ROM Info
------------
GUID: 0x0000000000000000
Node Capabilities: 0x00000000
Vendor ID: 0x00000000
Unit Spec ID: 0x00000000
Unit SW Version: 0x00000000
Model ID: 0x00000000
Nr. Textual Leafes: 0

Vendor: (null)
Textual Leafes: 

AV/C Subunits
-------------
N/A

-------------------------------------------------------------


Clicking a second

" <question mark>
S400 Unknown":

----------------------------------------------------
SelfID Info
-----------
Physical ID: 0
Link active: Yes
Gap Count: 63
PHY Speed: S400
PHY Delay: <=144ns
IRM Capable: No
Power Class: None
Port 0: Connected to parent node
Port 1: Not connected
Port 2: Not connected
Init. reset: No

CSR ROM Info
------------
GUID: 0x0000000000000000
Node Capabilities: 0x00000000
Vendor ID: 0x00000000
Unit Spec ID: 0x00000000
Unit SW Version: 0x00000000
Model ID: 0x00000000
Nr. Textual Leafes: 0

Vendor: (null)
Textual Leafes: 

AV/C Subunits
-------------
N/A

---------------------------------------------------



Please, if you think it might help, let me know if want to change the
scripts to load the ieee drivers ...  (Note the disable_irm=0 in one of
the scripts above .. )


Til then

Best Regards
Wolfgang

-- 
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