Read errors from SILO booting Debian Wheezy/sparc64

[Artyom Tarasenko]

With the current OpenBIOS (svn.r1129) there are errors reading initrd
from an ext2 partition using SILO.

Steps to reproduce:

1. Install Debian Wheezy RC1 (e.g. as described here
http://tyom.blogspot.de/2013/03/debiansparc64-wheezy-under-qemu-how-to.html
) using the standard partition layout ( i.e. /boot parttion with an
ext2 file system).

2. Try to boot from the wheezy disk, using it as a -hda image.

Below is the boot log with OFMEM_DEBUG enabled.

$ sparc64-softmmu/qemu-system-sparc64 -bios
/path-to/openbios-devel/obj-sparc64/openbios-builtin.elf -m 384
-nographic  -hda /path/debian-wheezy.qcow2

SILO Version 1.4.14
boot:
OFMEM: ofmem_map_page_range 0000000040000000 -> 0000000000400000
0000000004000000 mode 0000000000000027
Allocated 64 Megs of memory at 0x40000000 for kernel
Uncompressing image...
Loaded kernel version 3.2.35
OFMEM: ofmem_map: Bad parameters (0000000004400000 0000000040C00000
000000000094DFFF)

^^^^^^ what happens here?

OFMEM: ofmem_map_page_range 0000000040c00000 -> 0000000004400000
000000000094e000 mode 0000000000000027
OFMEM: mapping altered virt=0000000040c00000)
Loading initial ramdisk (9747774 bytes at 0x4400000 phys, 0x40C00000 virt)...
|
Read error on block 1296 (tried 262144, got 4294967295)

Read error on block 1296 (tried 262144, got 4294967295)
|
Read error on block 1810 (tried 262144, got 4294967295)

Read error on block 1810 (tried 262144, got 4294967295)
\
Read error on block 2324 (tried 242688, got 4294967295)

Read error on block 2324 (tried 242688, got 4294967295)
|
Read error on block 3468 (tried 262144, got 4294967295)

Read error on block 3468 (tried 262144, got 4294967295)

Read error on block 3468 (tried 262144, got 4294967295)
|
Read error on block 4239 (tried 262144, got 4294967295)

Read error on block 4239 (tried 262144, got 4294967295)
\
Read error on block 5780 (tried 1024, got 4294967295)
|
Read error on block 5524 (tried 262144, got 4294967295)
|
Read error on block 6295 (tried 262144, got 4294967295)

Read error on block 6295 (tried 262144, got 4294967295)
OFMEM: ofmem_unmap 0000000040c00000 000000000094dfff
[...]
[   17.710187] Unpacking initramfs...
[   17.861207] Initramfs unpacking failed: broken padding
[   17.861323] Freeing initrd memory: 9519k freed

linux/sparc and solaris/sparc under qemu blog:
http://tyom.blogspot.com/search/label/qemu