@Juergen, With Pengutornics BSP I am getting below JFFS2 warning frequency. JFFS2 notice: (271) check_node_data: wrong data CRC in data node at 0x0aa2df7c: read 0x2a3c1ed2, calculated 0x1c1f13de. Do i need to worry about this warning? I am running mini2440 under industrial environment? Please let me know if any patch/solution are available.
If it happens very often (or again and again) on one target at run-time, you should worry. Then your NAND memory seems worn out. If it happens once after you have erased and re-written the NAND partition with a JFFS2 image, you can ignore the message.
@Juergen as soon as board start, warning appear. it is not happening very often, but yes it is coming.. and I need to worry about it. what is the solution for this problem?
If your NAND memory is worn out, there is no other solution than to change the NAND device. If it happens due to power failure, you also can (mostly) ignore it. If the NAND has factory marked bad blocks and someone has deleted these markers it also can happen. In this case these messages are serious. Sorry, no simple solution.
@Juergen, I don't know what is wrong with my NAND, whenever I power up, it gives me that warning. So just wanted to know whether it affect my system, because I have attached hardware with the board and i am running the board in industrial environment. http://www.friendlyarm.net/forum/topic/4846 you can check those post where I am getting external interrupt on GPIO, and it causing malfunction hardware. Is there any way to disable interrupt on CON4? sorry, i am not giving another direction to this thread, but just wanted to know.