Read TLB miss exception on O2 while trying to install IRIX 6.5.10?

[BG]

Hi,

I am trying to install IRIX 6.5.10 (I have all the CDs burned from
disk images, .nrg Nero image files) on my O2 which I got from work
without a HDD so I bought a 36GB SCA-2 UltraSCSI160 drive for it
(unformatted).

I boots fine and goes into maintenance mode, I go into the command
monitor and try to start fx with [My CD is (0,4), my HDD is (0,1) SCSI
controller/ID] :

boot -f dksc(0,4,8)sashARCS dksc(0,4,7)stand/fx.ARCS --x

but I get this exception:

Exception: <vector=Normal>
Status register:
0x34010082<CU1,CU0,FR,DE,IPL=8,KX,MODE=KERNEL>
Cause register:
0x8008<CE=0,IP8,EXC=RMISS>
Exception PC: 0x0, Exception RA:
0x0
Read TLB miss exception, bad address:
0x0
Saved user regs in hex (&gpda 0x81060768, &_regs
0x81060968):
arg: 81070000 0 810541e0 8105f950
tmp: 81070000 a13fb458 8ff91020 0 a13fafe8 810483f4 810483fc
31
sve: 81070000 c13720e0 0 460cc6a9 0 0 0
80ee80d5
t8 81070000 t9 0 at 0 v0 0 v1 0 k1
0
gp 81070000 fp 0 sp 0 ra 0

PANIC: Unexpected exception



I have no idea what this means? Is the CD image burned wrongly? Is my
CDROM dead? Is it some hardware problem?

The funny thing is that sometimes doesn't give the error immediately,
but I am able to start fx, and then on the next command it gives this
error.

Also from the maintenance menu I run diagnostics, and sometimes it
gives me this error right away, sometimes it goes through the whole
diagnostics (everything passes) and then on the next command i issue
that has to do with the CDROM it gives this command.

I am really confused, any help would be appreciated.

thanks!
BG

[Walter Roberson]

Post by BG
I am trying to install IRIX 6.5.10 (I have all the CDs burned from
disk images, .nrg Nero image files) on my O2 which I got from work
without a HDD so I bought a 36GB SCA-2 UltraSCSI160 drive for it
(unformatted).
Exception: <vector=Normal>
0x34010082<CU1,CU0,FR,DE,IPL=8,KX,MODE=KERNEL>
0x8008<CE=0,IP8,EXC=RMISS>
0x0

What's the CPU in the O2? I seem to recall that R10K O2 did not
exist at the time the original 6.5 CDs were created, so for that
model it is necessary to use the boot tools that are on the overlay
CDs. I'm not even sure at the moment that 6.5.10 supported the R10K O2.
You might need a later version, possibly.

[BG]

No, it is not R10K, it is R5KSC with 512K cache at 180MHz and 320MB of
RAM.. 6.5.10 should well support it.

Post by Walter Roberson

Post by BG
I am trying to install IRIX 6.5.10 (I have all the CDs burned from
disk images, .nrg Nero image files) on my O2 which I got from work
without a HDD so I bought a 36GB SCA-2 UltraSCSI160 drive for it
(unformatted).
Exception: <vector=Normal>
0x34010082<CU1,CU0,FR,DE,IPL=8,KX,MODE=KERNEL>
0x8008<CE=0,IP8,EXC=RMISS>
0x0

What's the CPU in the O2? I seem to recall that R10K O2 did not
exist at the time the original 6.5 CDs were created, so for that
model it is necessary to use the boot tools that are on the overlay
CDs. I'm not even sure at the moment that 6.5.10 supported the R10K O2.
You might need a later version, possibly.

[Toni Grass]

Post by BG
Hi,
I am trying to install IRIX 6.5.10 (I have all the CDs burned from
disk images, .nrg Nero image files) on my O2 which I got from work
without a HDD so I bought a 36GB SCA-2 UltraSCSI160 drive for it
(unformatted).

[....]

You are sure the CDs have a correct EFS file system and sector size is
512 (and not 2048 as usual)

Toni

[BG]

Hmm, I am not completely sure of that.. I don't know how to check
though? I got them from a guy who used Nero to make images of his own
original CDs, so I presume they are good. Windows cannot read them,
doesn't see anythign on the CDs, and PowerISO/DaemonTools cannot mount
them, and I cannot open them in any ISO tool on Windows. That is good,
right?

I was looking for other images of some other version of IRIX, but they
are so darn hard to find.

Post by Toni Grass

Post by BG
Hi,
I am trying to install IRIX 6.5.10 (I have all the CDs burned from
disk images, .nrg Nero image files) on my O2 which I got from work
without a HDD so I bought a 36GB SCA-2 UltraSCSI160 drive for it
(unformatted).

[....]
You are sure the CDs have a correct EFS file system and sector size is
512 (and not 2048 as usual)
Toni

[Toni Grass]

Post by BG
Hmm, I am not completely sure of that.. I don't know how to check
though? I got them from a guy who used Nero to make images of his own
original CDs, so I presume they are good. Windows cannot read them,
doesn't see anythign on the CDs, and PowerISO/DaemonTools cannot mount
them, and I cannot open them in any ISO tool on Windows. That is good,
right?

Yes, that's good but I doubt that you can burn a CD suitable for an O2
on a PC device as only few of them can handle sector size 512 bytes
(e.g. Plextor can do that but it needs a jumper to be set - and then
Windows cannot handle the device).

Post by BG
I was looking for other images of some other version of IRIX, but they
are so darn hard to find.

eBay...?

Toni

[BG]

Toni, I have the images not as file system which I burn on a CD (with
or without boot option), but as a .nrg, i.e. advanced ISO images made
from the original CDs. I believe the sector size of the original CD
is preserved when it is made an ISO/NRG image, since the image burning
software does not have sector size as an option. I have plenty of
linux machines at work, and macs, and some solaris and SunOS boxes
(though I doubt they have CD burners) where I can try to burn the
images, however I am not sure if it matters with an ISO image.

I got the 6.5.30 install and App CDs (the latest IRIX), but as
filesystems, so I will try to burn those as non-bootable filetrees
with sector size 512 and see what happens.

I've had this O2 for a month now and still cannot get it running, so I
am getting quite frustrated. Especially since the smartasses at work
would not giv eme the original HDD with pre-installed IRIX for
"security" reasons, though it never hosted anything but some
documentation stuff :(

thanks for your input!
BG

Post by Toni Grass

Post by BG
Hmm, I am not completely sure of that.. I don't know how to check
though? I got them from a guy who used Nero to make images of his own
original CDs, so I presume they are good. Windows cannot read them,
doesn't see anythign on the CDs, and PowerISO/DaemonTools cannot mount
them, and I cannot open them in any ISO tool on Windows. That is good,
right?

Yes, that's good but I doubt that you can burn a CD suitable for an O2
on a PC device as only few of them can handle sector size 512 bytes
(e.g. Plextor can do that but it needs a jumper to be set - and then
Windows cannot handle the device).

Post by BG
I was looking for other images of some other version of IRIX, but they
are so darn hard to find.

eBay...?
Toni

[BG]

For the people who will search the usenet in the future with the same
problem I wanted to mention what helped:

"RESEAT" all of your hardware. I mean take everything out, all the
modules, all the RAM, disconnect the drives, etc. etc., blow all the
dust, and put everything together again, and VOILA! - I have a
partitioned disk now :)

thanks to all for the input!

BG

[Thomas Jahns]

Post by Toni Grass
Yes, that's good but I doubt that you can burn a CD suitable for an O2
on a PC device as only few of them can handle sector size 512 bytes
(e.g. Plextor can do that but it needs a jumper to be set - and then
Windows cannot handle the device).

Just for the record: the sector size of a CD-ROM is independent (or
rather: fixed) for any drive reading from such disc. The sector size
that's so important for SGI, Sun and some other systems is just the
sector size presented as a SCSI device property by the CD-ROM drive
(independent from (not) inserted media), which usually means that one
native 2048 byte sector of mode 1 CD-ROM data is presented as 4 512
byte sectors.

Since any SGI systems since the R4k Indigo can also tell CD-ROM drives
to use 512 byte sectors (even when jumpered to 2048), this is absolutely
a non-issue for O2 systems. Only some drives will complain if they
receive such a command when already jumpered to 512 byte sectors.

Thomas Jahns

[h***@modelmasters.com]

that error message looks to me like you have a bad dimm, since they go
in pairs, remove, remove and or swap them around or just reseat them

Post by BG
Hi,
I am trying to install IRIX 6.5.10 (I have all the CDs burned from
disk images, .nrg Nero image files) on my O2 which I got from work
without a HDD so I bought a 36GB SCA-2 UltraSCSI160 drive for it
(unformatted).
I boots fine and goes into maintenance mode, I go into the command
monitor and try to start fx with [My CD is (0,4), my HDD is (0,1) SCSI
boot -f dksc(0,4,8)sashARCS dksc(0,4,7)stand/fx.ARCS --x
Exception: <vector=Normal>
0x34010082<CU1,CU0,FR,DE,IPL=8,KX,MODE=KERNEL>
0x8008<CE=0,IP8,EXC=RMISS>
0x0
0x0
Saved user regs in hex (&gpda 0x81060768, &_regs
arg: 81070000 0 810541e0 8105f950
tmp: 81070000 a13fb458 8ff91020 0 a13fafe8 810483f4 810483fc
31
sve: 81070000 c13720e0 0 460cc6a9 0 0 0
80ee80d5
t8 81070000 t9 0 at 0 v0 0 v1 0 k1
0
gp 81070000 fp 0 sp 0 ra 0
PANIC: Unexpected exception
I have no idea what this means? Is the CD image burned wrongly? Is my
CDROM dead? Is it some hardware problem?
The funny thing is that sometimes doesn't give the error immediately,
but I am able to start fx, and then on the next command it gives this
error.
Also from the maintenance menu I run diagnostics, and sometimes it
gives me this error right away, sometimes it goes through the whole
diagnostics (everything passes) and then on the next command i issue
that has to do with the CDROM it gives this command.
I am really confused, any help would be appreciated.
thanks!
BG