안녕하세요.. 또 질문입니다. 꾸벅...
이지보드 부팅후 dmesg에서 나타난 내용중 이번에는 yaffs 부분입니다.

아래와 같은 메시지가 출력되었습니다.

yaffs: dev is 7938 name is "1f:02"
yaffs: Attempting MTD mount on 31.2, "1f:02"
block 1 is bad
block 2 is bad
block 3 is bad
block 4 is bad
block 5 is bad
block 7 is bad
block 8 is bad
block 9 is bad
block 10 is bad
block 11 is bad
**>>ecc error unfixed on chunk 398:0
**>>Block 12 marked for retirement
**>>ecc error unfixed on chunk 401:0
**>>Block 12 marked for retirement
**>>ecc error unfixed on chunk 402:0
**>>Block 12 marked for retirement
**>>ecc error unfixed on chunk 403:0
**>>Block 12 marked for retirement
block 13 is bad
block 14 is bad
block 15 is bad
block 16 is bad
block 18 is bad
**>>ecc error unfixed on chunk 660:0
**>>ecc error fix performed on chunk 660:1
**>>Block 20 marked for retirement
block 21 is bad
block 22 is bad
block 23 is bad
block 24 is bad
block 25 is bad
block 26 is bad
block 28 is bad
block 29 is bad
**>>ecc error unfixed on chunk 991:0
**>>Block 30 marked for retirement
block 31 is bad
block 32 is bad
block 34 is bad
block 35 is bad
block 37 is bad
[root@EZ-X5 /root]$_

1. 여기서 블럭 x 가 배드가 났다는 의미가 무었인지요..

2. ecc error unfixed on chunk가 의미하는것은 무엇인지요.

3. block x가 marked for retirement가 되었다는 것은 무엇인지요..

4. 처음 ezboot.x5 에서 출력될때 Nand Flash에서 배드체크할때 아무런 이상
이 없이 다음과 같은 메시지가 나오거든요..

Boot Flash Check ..........................
Detect MX29LV800T Flash : 22DA
SIZE 8M-BIT [1Mbyte]
NAND Chip Check ...........................
Detect SAMSUNG [ec:76] 64MByte
BAD BLOCK SCAN -> Total Bad Block [0]



무엇인 문제인지 잘 모르겠습니다.
도움 부탁드립니다.