[OpenBIOS] Solaris 8: ESP device enumeration issue

[Mark Cave-Ayland]

Hi all,

So with the previous patch to change the initial timer values applied to 
SVN trunk, we now get much further on a Solaris 8 boot:


Configuration device id QEMU version 1 machine id 32
CPUs: 1 x FMI,MB86904
UUID: 00000000-0000-0000-0000-000000000000
Welcome to OpenBIOS v1.0 built on Feb 17 2011 14:56
   Type 'help' for detailed information

0 > boot cdrom:d -v Not a bootable ELF image
Loading a.out image...
Loaded 7680 bytes
entry point is 0x4000
bootpath: /iommu/sbus/espdma/esp/sd at 2,0:d

Jumping to entry point 00004000 for type 00000005...
switching to new context:
Size: 259040+54154+47486 Bytes
SunOS Release 5.8 Version Generic_108528-09 32-bit
Copyright 1983-2001 Sun Microsystems, Inc.  All rights reserved.
Ethernet address = 52:54:0:12:34:56
Using default device instance data
vac: enabled in write through mode
mem = 131072K (0x8000000)
avail mem = 110419968
root nexus = SUNW,SPARCstation-5
iommu0 at root: obio 0x10000000
sbus0 at iommu0: obio 0x10001000
dma0 at sbus0: SBus slot 5 0x8400000
dma0 is /iommu at 0,10000000/sbus at 0,10001000/espdma at 5,8400000
/iommu at 0,10000000/sbus at 0,10001000/espdma at 5,8400000/esp at 5,8800000 (esp0):
         esp-options=0x46
esp0 at dma0: SBus slot 5 0x8800000 sparc ipl 4
esp0 is /iommu at 0,10000000/sbus at 0,10001000/espdma at 5,8400000/esp at 5,8800000
qemu: fatal: Trap 0x29 while interrupts disabled, Error state
pc: f004127c  npc: f0041280
General Registers:
%g0-7: 00000000 f02441a0 04400fc1 00007000 f5af4e40 f0243b88 00000000 
f0244020

Current Register Window:
%o0-7: ffff8000 00008000 00000f00 044000c0 f5948688 ffebc000 fbe3a4b8 
f0041be4
%l0-7: 04400fc0 f0041c78 f0041c7c 00000001 0000010f 00000001 0000002a 
fbe39f78
%i0-7: ffff8000 00008000 00000f00 044000c1 00000002 ffebc000 fbe3a020 
f0041be4

Floating Point Registers:
%f00: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f04: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f08: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f12: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f16: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f20: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f24: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f28: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
psr: 04000fc0 (icc: ---- SPE: SP-) wim: 00000001
fsr: 00080000 y: 00000000
Aborted


 From Artyom's OBP output, we can see that the next few lines that 
should appear on the console look like this:

sd2 at esp0: target 2 lun 0
sd2 is /iommu at 0,10000000/sbus at 0,10001000/espdma at 5,8400000/esp 
at 5,8800000/sd at 2,0
root on /iommu at 0,10000000/sbus at 0,10001000/espdma at 5,8400000/esp 
at 5,8800000/sd at 2,0:b

Therefore the crash is being caused by Solaris either trying to access 
the esp device or doing some kind of enumeration on the ESP bus.


ATB,

Mark.

-- 
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: +44 870 608 0063

Sirius Labs: http://www.siriusit.co.uk/labs