On Feb 15, 2025, at 12:24 PM, Jd Lyons <lyons_dj@yahoo.com> wrote:

Don’t give up yet, we can get more people involved…..

Here is the dump of the DP MDD /cpus node, there is some interesting stuff there….

0 > dev /cpus/@0 .properties 

name                    PowerPC,G4

                          

device_type             cpu

reg                     00000000  

cpu-version             80010201 

state                   running

clock-frequency         33a848a8 

bus-frequency           07f0db85 

config-bus-frequency    07f0b5db 

timebase-frequency      01fc36e1 

reservation-granule-size00000020 

tlb-sets                00000040 

tlb-size                00000080 

d-cache-size            00008000 

i-cache-size            00008000 

d-cache-sets            00000080 

i-cache-sets            00000080 

i-cache-block-size      00000020 

d-cache-block-size      00000020 

graphics                

performance-monitor     

altivec                 

data-streams            

l2-cache                ff87fd10 

l2cr                    80080000 

existing                00000000 80000000 80000000 80000000 

available               00003000 7fffd000 d0000000 20000000 

translations            00000000 00003000 00000000 00000010 80000000 00080000 

                        80000000 00000028 80080000 00001000 80080000 00000028 

                        80081000 00001000 80081000 00000028 f0000000 00010000 

                        f0000000 00000028 f0800000 00001000 f0800000 00000028 

                        f0c00000 00001000 f0c00000 00000028 f2000000 00010000 

                        f2000000 00000028 f2800000 00001000 f2800000 00000028 

                        f2c00000 00001000 f2c00000 00000028 f4000000 00010000 

                        f4000000 00000028 f4800000 00001000 f4800000 00000028 

                        f4c00000 00001000 f4c00000 00000028 f5000000 00001000 

                        f5000000 00000028 f5200000 00200000 f5200000 00000028 

                        f5200000 00200000 f5200000 00000028 

                        ... 00000140 bytes total

cpu-info                8410c0bc 80080000 80010201 00000400 00000000 00000000 

                        00000000 00000000 

soft-reset              00000071  <<—————————Here

gpio-mask               00000001  <<—————————Here

gpio-value              00000001  <<—————————Here

performance-monitor-cnt-enable 00000072  

timebase-enable         00000073  <<—————————Here

gpio-parent             ff95c318  <<—————————Here

 ok

0 > dev /cpus/@1  ok

0 > .properties 

name                    PowerPC,G4

                          

device_type             cpu

reg                     00000001  

cpu-version             80010201 

state                   stopped

clock-frequency         33a848a8 

bus-frequency           07f0db85 

config-bus-frequency    07f0b5db 

timebase-frequency      01fc36e1 

reservation-granule-size00000020 

tlb-sets                00000040 

tlb-size                00000080 

d-cache-size            00008000 

i-cache-size            00008000 

d-cache-sets            00000080 

i-cache-sets            00000080 

i-cache-block-size      00000020 

d-cache-block-size      00000020 

graphics                

performance-monitor       

altivec                 

data-streams            

l2-cache                ff880fd0 

l2cr                    80080000 

cpu-info                8431c0bc 00000000 80010201 00000400 fff0376c 0000b010 

                        00060110 21524110 

soft-reset              00000072  <<—————————Here

gpio-mask               00000001  <<—————————Here

gpio-value              00000001  <<—————————Here

timebase-enable         00000073 

cpu-interrupt-enable    00000074  <<—————————Here

gpio-parent             ff95c318  <<—————————Here

                        

                        

                        

                        

                        

                        

                        

                        

                        

                        

                        

                          

                        

                        

                        

                        

                        

                        

                        

customer-sw-config       694-4782

                        

                        

color-code              ff11

scb#                    00000000 

display-config-info     ffffffff ffffffff 

name                    device-tree

copyright               Copyright 1983-2002 Apple Computer, Inc. All Rights Reserved

device_type             bootrom

system-id               0000000000000

#address-cells          00000001 

#size-cells             00000001 

clock-frequency         07f0db85 

AAPL,add-fcode-file     ff860928 

 ok

0 > 

On Feb 15, 2025, at 11:53 AM, Andrew Randrianasulu <randrianasulu@gmail.com> wrote:

сб, 15 февр. 2025 г., 19:37 Jd Lyons <lyons_dj@yahoo.com>:

Mate Live CD does default to SMP:

Thanks for testing.

Unfortunately,I think I just fundamentally misunderstood how IRQ vs IPI works so .. in absence of someone with working understanding of how all this really work this probably will not progress much ...

sorry!

>> =============================================================

>> OpenBIOS 1.1 [Feb 14 2025 10:28]

>> Configuration device id QEMU version 1 machine id 1

>> CPUs: 2

>> Memory: 1024M

>> UUID: 00000000-0000-0000-0000-000000000000

>> CPU type PowerPC,G4

>> CPU type PowerPC,G4

milliseconds isn't unique.

Welcome to OpenBIOS v1.1 built on Feb 14 2025 10:28

0 > boot Trying cd:,\\:tbxi...

>> switching to new context:

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

call-method color!: exception -21 

>> call-method color! failed with error ffffffdf

Config file read, 2702 bytes

Welcome to Ubuntu MATE 16.04.1 LTS (Xenial Xerus)!

This is an Ubuntu MATE live CDROM,

built on 20160719.

The default option is 'live'.

If the system fails to boot at all (the typical

symptom is a white screen which doesn't go away),

use 'live video=ofonly'.

Press the tab key for a list of options, or type

'help' for help.

************************************

If in doubt, just press Enter, and if that

doesn't work, type 'live video=ofonly'.

************************************

Welcome to yaboot version 1.3.16

Enter "help" to get some basic usage information

WARNING: Bootstrap partition type is wrong: "Apple_HFS"

         type should be: "Apple_Bootstrap"

boot: live

Please wait, loading kernel...

   Elf32 kernel loaded...

Loading ramdisk...

ramdisk loaded at 01b00000, size: 22562 Kbytes

OF stdout device is: /pci@f2000000/mac-io@c/escc@13000/ch-a@13020

Preparing to boot Linux version 4.4.0-31-powerpc-smp (buildd@denneed03) (gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2.1) ) #50-Ubuntu SMP Wed Jul 13 00:23:04 UTC 2016 (Ubuntu 4.4.0-31.50-powerpc-smp 4.4.13)

Detected machine type: 00000400

command line: 

memory layout at init:

  memory_limit : 00000000 (16 MB aligned)

  alloc_bottom : 03109000

  alloc_top    : 30000000

  alloc_top_hi : 40000000

  rmo_top      : 30000000

  ram_top      : 40000000

found display   : /pci@f2000000/QEMU,VGA@e, opening... done

copying OF device tree...

Building dt strings...

Building dt structure...

Device tree strings 0x0320a000 -> 0x0320a5ea

Device tree struct  0x0320b000 -> 0x03212000

Quiescing Open Firmware ...

Booting Linux via __start() ...

Trying to read invalid spr 1012 (0x3f4) at 00000000c0015f18

Hello World !

setup_arch: initmem

arch: exit

smp_core99_probe

smp_core99_kick_cpu

smp_core99_kick_cpu done

[    5.131667] Processor 1 is stuck.

[    5.131667] Processor 1 is stuck.

It tries to kickstart SMP but Processor 1 is stuck!

             

[   54.955254] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[   54.955664] ata1.00: failed command: READ DMA

[   54.955950] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[   54.955950]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[   54.956472] ata1.00: status: { DRDY }

[   85.930746] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[   85.931000] ata1.00: failed command: READ DMA

[   85.931149] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[   85.931149]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[   85.931569] ata1.00: status: { DRDY }

[  116.970014] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  116.970250] ata1.00: failed command: READ DMA

[  116.970402] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  116.970402]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  116.970814] ata1.00: status: { DRDY }

[  148.010809] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  148.011048] ata1.00: failed command: READ DMA

[  148.011195] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  148.011195]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  148.011610] ata1.00: status: { DRDY }

[  178.986502] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  178.986758] ata1.00: failed command: READ DMA

[  178.986906] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  178.986906]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  178.987328] ata1.00: status: { DRDY }

[  209.962237] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  209.962474] ata1.00: failed command: READ DMA

[  209.962622] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  209.962622]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  209.963038] ata1.00: status: { DRDY }

[  209.966227] blk_update_request: I/O error, dev sda, sector 0

[  209.966534] Buffer I/O error on dev sda, logical block 0, async page read

[  240.937824] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  240.938059] ata1.00: failed command: READ DMA

[  240.938205] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  240.938205]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  240.938642] ata1.00: status: { DRDY }

[  245.234331] INFO: task swapper/0:1 blocked for more than 120 seconds.

[  245.234688]       Not tainted 4.4.0-31-powerpc-smp #50-Ubuntu

[  245.234864] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

[  245.235822] INFO: task kworker/0:1:30 blocked for more than 120 seconds.

[  245.236016]       Not tainted 4.4.0-31-powerpc-smp #50-Ubuntu

[  245.236176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

[  271.977850] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  271.978090] ata1.00: failed command: READ DMA

[  271.978241] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  271.978241]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  271.978653] ata1.00: status: { DRDY }

[  302.122355] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  302.122600] ata1.00: failed command: READ DMA

[  302.122746] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  302.122746]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  302.123172] ata1.00: status: { DRDY }

[  333.162381] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  333.162651] ata1.00: failed command: READ DMA

[  333.162795] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  333.162795]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  333.163229] ata1.00: status: { DRDY }

[  364.138445] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  364.138696] ata1.00: failed command: READ DMA

[  364.138844] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  364.138844]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  364.139276] ata1.00: status: { DRDY }

[  365.233579] INFO: task swapper/0:1 blocked for more than 120 seconds.

[  365.233825]       Not tainted 4.4.0-31-powerpc-smp #50-Ubuntu

[  365.233992] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

[  365.234445] INFO: task kworker/0:1:30 blocked for more than 120 seconds.

[  365.234633]       Not tainted 4.4.0-31-powerpc-smp #50-Ubuntu

[  365.234792] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

[  365.235276] INFO: task kworker/u4:2:79 blocked for more than 120 seconds.

[  365.235467]       Not tainted 4.4.0-31-powerpc-smp #50-Ubuntu

[  365.235625] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

[  395.178285] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  395.178536] ata1.00: failed command: READ DMA

[  395.178681] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  395.178681]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  395.179112] ata1.00: status: { DRDY }

[  395.180504] blk_update_request: I/O error, dev sda, sector 0

[  395.180710] Buffer I/O error on dev sda, logical block 0, async page read

[  426.154784] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  426.155025] ata1.00: failed command: READ DMA

[  426.155173] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  426.155173]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  426.155585] ata1.00: status: { DRDY }

[  457.130476] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

[  457.130713] ata1.00: failed command: READ DMA

[  457.130859] ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in

[  457.130859]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x20 (host bus error)

[  457.131276] ata1.00: status: { DRDY }

[  485.233894] INFO: task swapper/0:1 blocked for more than 120 seconds.

[  485.234188]       Not tainted 4.4.0-31-powerpc-smp #50-Ubuntu

[  485.234347] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

[  485.234787] INFO: task kworker/0:1:30 blocked for more than 120 seconds.