Sparc platform development envrionment using Qemu

Nvram id QEMU_BIOS, version 3, machine id 0x80
CPUs: 1 x FMI,MB86904
Welcome to OpenBIOS v1.0RC1 built on jan 24 2008 01:56
  Type 'help' for detailed information

[sparc] Booting file 'disk' with parameters ''
Not a bootable ELF image
Not a Linux kernel image
Loading a.out image...
Loaded 7680 bytes
entry point is 0x4000
Jumping to entry point...
SILO Version 1.4.13
boot: 
Uncompressing image...
Loaded kernel version 2.6.18
Loading initial ramdisk (3210249 bytes at 0x3000000 phys, 0x60000000 virt)...
PROMLIB: obio_ranges 1
Booting Linux...
PROMLIB: Sun Boot Prom Version 3 Revision 2
Linux version 2.6.18-6-sparc32 (Debian 2.6.18.dfsg.1-23etch1) (dannf@debian.org) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 Fri Dec 12 16:29:52 UTC 2008
ARCH: SUN4M
TYPE: SPARCstation 5
Ethernet address: 52:54:0:12:34:56
Boot time fixup v1.6. 4/Mar/98 Jakub Jelinek (jj@ultra.linux.cz). Patching kernel for srmmu[Fujitsu TurboSparc]/iommu
PROM: Built device tree with 21328 bytes of memory.
Power off control detected.
Built 1 zonelists.  Total pages: 31179
Kernel command line: root=/dev/sda2 ro
PID hash table entries: 512 (order: 9, 2048 bytes)
start_kernel(): bug: interrupts were enabled early
Console: colour dummy device 80x25
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 121200k/130232k available (1640k kernel code, 8880k reserved, 404k data, 136k init, 0k highmem)
Mount-cache hash table entries: 512
checking if image is initramfs... it is
Freeing initrd memory: 3135k freed
NET: Registered protocol family 16
IOMMU: impl 0 vers 5 table 0xf3200000[262144 B] map [65536 b]
sbus0: Clock 21.1250 MHz
dma0: Revision 2 
dma1: Revision 0 
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 4096 bind 2048)
TCP reno registered
ioremap: done with statics, switching to malloc
apc: power management initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
Console: switching to colour frame buffer device 128x48
/iommu@0,10000000/sbus@0,10001000/SUNW,tcx@3,800000: TCX at 0:50800000, 8-bit only
ffd54454: ttyS0 at MMIO 0x71100000 (irq = 44) is a zs
Console: ttyS0 (SunZilog zs0)
ffd54454: ttyS1 at MMIO 0x71100004 (irq = 44) is a zs
ffd54630: Keyboard at MMIO 71000000 (irq = 44) is a zs
ffd54630: Mouse at MMIO 71000004 (irq = 44) is a zs
Floppy drive(s): fd0 is 1.44M
Unable to handle kernel paging request at virtual address 7a000000
tsk->{mm,active_mm}->context = ffffffff
tsk->{mm,active_mm}->pgd = fc000000
              \|/ ____ \|/
              "@'/ ,. \`@"
              /_| \__/ |_\
                 \__U_/
swapper(0): Oops [#1]
PSR: 044010c5 PC: f001c770 NPC: f001c774 Y: 00000000    Not tainted
PC: <apc_swift_idle+0x8/0x1c>
%G: 00000010 f022a000  fd013000 f05b0000  04101fe5 00000040  f000e000 00000001
%O: 00000019 00000032  00000010 00000008  f00d941c 00000001  f000fec8 f0014a40
RPC: <cpu_idle+0xc0/0xfc>
%L: 00000190 f7f2d580  f01d49d0 f01d4aac  f022373c 00000066  00000009 00000000
%I: f01d57c0 00000000  00000010 00000008  f00d941c f0235000  f000ff30 f0205f64
Caller[f0205f64]: _etext+0x68754/0x697e8
Caller[f0205790]: _etext+0x67f80/0x697e8
Caller[ffd07fec]: 0xffd07ff4
Instruction DUMP: 90102000  81c3e008  90102000 <033c08a8> c4006220  c2088000  82106001  c2288000  81c3e008 
Kernel panic - not syncing: Attempted to kill the idle task!
 <0>Press Stop-A (L1-A) to return to the boot prom
no cont in shutdown!