kernel panic after VFS mount in FPGA board

On 2012-04-11 19:03:42 (+0530), pcuser p [off-list ref] wrote:

I'm getting kernel panic after cramfs root file system is mounted,I am
expecting to enter login prompt after root file system is mounted.

Kernel cmd line : mem=32M console=ttySAC0,115200 root=/dev/ram0
rootfstype=cramfs init=/linuxrc initrd=0x80800000,8M user_debug=31

*linuxrc init script*
#!/bin/sh**
/bin/echo "mount /etc as ramfs"
/bin/mount -n -t ramfs ramfs /etc
/bin/mount -n -t tmpfs tmpfs /tmp
exec /sbin/init

I tried  with this init script,but kernel is hanging without any message..
I changed it a bit as below, to see if it reads the init script

#!/bin/sh
/bin/echo "Entering Init script"

Init isn't allowed to exit.
That's probably why you're seeing the panic. Try starting a shell after
the /bin/echo, or just using /bin/sh as init.

with this changes,I am expect to get print message "Entering Init script"
after cramfs is mounted,but I am getting panic message which is attached
below.

Probably because the system panics before the stdout buffers make it to
the console.

Regards,
Kristof