Hi i have N12 UMay and kernel nitdroid-kernel-2.6.28-07_rc3_armel, but im getting too many random reboots. Is there any way to fix this? Thanks.

Could be problems with your SD card, try another if you have one...

Otherwise give the rc4 kernel a try, I'm using it with no problems:
http://downloads.nitdroid.com/e-yes/..._rc4_armel.deb

how can i install that?

wget http://downloads.nitdroid.com/e-yes/..._rc4_armel.deb
- dpkg -i nitdroid-kernel-2.6.28-07_rc4_armel.deb

can i do it this way? or it needs flashing or somthnig..

my multiboot menu looks like this:

1- Maemo 2.6.28 omap1
2- NITDroid 2.6.28.NIT 07 on mmcblk0p2
3- NITDroid 2.6.28.NIT 06 on mmcblk1p2

i used this
sudo gainroot
mount /dev/mmcblk0p2 /and
cd /and
leafpad ./default.prop

to edit to:
persist.swap.dev=mmcblk1p3
persist.swap.swappiness=1

Is this working now or is there something wrong with the memory card partition? or this: persist.swap.dev=mmcblk0p3?

I have Nitdroid installed on EMMC(mmcblk0p2) and want to enable swap. So what should be the swap partition.

currently it shows
persist.swap.dev=mmcblk1p3
persist.swap.swappiness=0

Should i change the swap device to mmcblk0p3 or leave it unchanged?