[oi-dev] OpenIndiana 4 sun4u

[Klaus Ziegler - owner of sunfreeware.de]

Hi,

as you may know the latest OpenIndiana for SPARC does not run on
sun4u systems, it always panics during the initial CD boot with:

panic[cpu0]/thread=2a100301c80: vmem_xalloc(): size overflow

later on in the dump output one can see:
000002a100300f50 zfs:aggsum_init+48 (701348e0, 0, 7b69bbe0, 7b77b3a0, 1, 3)
   %l0-3: 0000000001824000 0000000001814410 000002a100300fe8 
0000000001824000
   %l4-7: 0000030001a82ee0 0000000001834000 0000000000000000 
0000000000000090
000002a100301000 zfs:arc_state_init+1ec (0, 3, 0, 0, 1, 701167b8)
   %l0-3: 0000000070116898 0000000070116800 0000000070116800 
0000000070116800

So for me it looks like the problem is the /kernel/drv/sparcv9/zfs module.
The panic occures in:
usr/src/uts/common/os/vmem.c line: 1085: panic("vmem_xalloc(): size 
overflow");

enough now, about what isn't working, here's the way I got it working:

1. lofiadm mount Gary's iso to /mnt, can be done on x86.
# lofiadm -a `pwd`/OI_2018_02_Text_SPARC.iso
# mount -o ro -F hsfs /dev/lofi/1 /mnt

2. extract the boot_archive to a SPARC, must be a SPARC can't be x86!
# cd /mnt/boot/platform/sun4u
# ls -al boot_archive
-rw-r--r--   1 root     root     197425152 Jan.  4 02:16 boot_archive

3. After you copied the archive to the SPARC system mount it using ufs 
filesystem format:
# lofiadm -a `pwd`/boot_archive
# mount -F ufs /dev/lofi/1 /mnt
# cd /mnt/kernel/drv/sparcv9
# rcp/scp <your v9os zfs module> .
# ls -al zfs
-rwxr-xr-x   2 root     sys      2229424 Oct 30  2018 zfs
# cd /
# umount /mnt

4. My boot-server is x86, so I copied the modified boot_archive back to 
there.
Setup tftpboot, the same way like s10s_u11wos_24a used to be booted over 
the net.
I used the inetboot binary from v9os, but I also verified that it works 
with the
inetboot from Gary's distribution.
IMPORTANT: rename "boot_archive" to "sparc.miniroot" in the NFS share,
which will be mounted for the initial boot via tftpboot.

5. On the system which you are going to install, insert the 
OI_2018_02_Text_SPARC
CD and boot from the net:
ok boot net -rv
and then you will end up in the installer of Gary's wonderfull distribution.

DRAWBACKS:
1.) you need an empty, but exsiting zpool "rpool" on the system you'll 
going to install.
2.) you have to choose "Install to existing Zpool" - and therfore create 
swap/dump
      devices after the install.
3.) you will not be able to create additional zpools on the system you 
have installed.

I have successfully done this for a SunFire v240 and one Enterprise2 - 
works like
a champ, if you create all your zpools before doing the install. Anyhow 
if you
do have a CDrom in the target system you can always create additional zpools
using the boot fro the v9os CD (be sure to use the correct drives).

P.S. if the system to be installed is a BroadCom Gigabit based one, also 
exchange
        the bge driver in addition to the zfs module - the bge driver 
fro Gray's release
        didn't work for me - I also used the one fro v9os.

Much Regards
Klaus

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