UBIFS error: ubifs_check_node: bad CRC

Sungkyun — Mon, 12 Jul 2021 07:29:30 GMT

Hi,

I am using I.MX6ULL + NAND Flash.

What causes "UBIFS error: ubifs_check_node: bad CRC" and how to fix it?

The following is the boot log.

=======================================================

Starting kernel ...

UBIFS error (ubi0:0 pid 1): ubifs_check_node: bad CRC: calculated 0xccc98199, read 0xccc983a5
UBIFS error (ubi0:0 pid 1): ubifs_check_node: bad node at LEB 12:49128
magic 0x6101831
crc 0xccc983a5
node_type 9 (indexing node)
group_type 0 (no node group)
sqnum 5715
len 188
child_cnt 8
level 1
Branches:
0: LEB 12:47592 len 188 key (283, data, 219)
1: LEB 12:47784 len 188 key (283, data, 227)
2: LEB 12:47976 len 188 key (283, data, 235)
3: LEB 12:48168 len 188 key (283, data, 243)
4: LEB 12:48360 len 188 key (283, data, 251)
5: LEB 12:48552 len 188 key (283, data, 259)
6: LEB 12:48744 len 188 key (283, data, 267)
UBIFS error (ubi0:0 pid 1): ubifs_read_node: expected node type 9
UBIFS error (ubi0:0 pid 1): do_readpage: cannot read page 278 of inode 283, error -117
UBIFS error (ubi0:0 pid 1): ubifs_check_node: bad CRC: calculated 0xccc98199, read 0xccc983a5
UBIFS error (ubi0:0 pid 1): ubifs_check_node: bad node at LEB 12:49128
magic 0x6101831
crc 0xccc983a5
node_type 9 (indexing node)
group_type 0 (no node group)
sqnum 5715
len 188
child_cnt 8
level 1
Branches:
0: LEB 12:47592 len 188 key (283, data, 219)
1: LEB 12:47784 len 188 key (283, data, 227)
2: LEB 12:47976 len 188 key (283, data, 235)
3: LEB 12:48168 len 188 key (283, data, 243)
4: LEB 12:48360 len 188 key (283, data, 251)
5: LEB 12:48552 len 188 key (283, data, 259)
6: LEB 12:48744 len 188 key (283, data, 267)
UBIFS error (ubi0:0 pid 1): ubifs_read_node: expected node type 9
UBIFS error (ubi0:0 pid 1): do_readpage: cannot read page 278 of inode 283, error -117
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007

---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007

=======================================================

I wonder if the cause of this problem is H/W or S/W.

I would appreciate it if you could answer my question.

Best Regards,

Sungkyun

Re: UBIFS error: ubifs_check_node: bad CRC

igorpadykov — Mon, 12 Jul 2021 11:37:09 GMT

Hi Sungkyun

>What causes "UBIFS error: ubifs_check_node: bad CRC" and how to fix it?

in general nand image may be corrupted ater sudden board power loss, so recommended to

use linux poweroff command. One can try to reprogram nand.

Best regards
igor

i.MX ProcessorsのトピックRe: UBIFS error: ubifs_check_node: bad CRC

UBIFS error: ubifs_check_node: bad CRC

Re: UBIFS error: ubifs_check_node: bad CRC