Hi !
I'm using f2fs on router Dlink dir-825 with openwrt/LEDE firmware.
Its mips32 rel 2 big endian cpu.
mkfs.f2fs - works
mount - works
fsck.f2fs - corrupts filesystem
# i'm trying to fsck valid empty mountable f2fs partition i have just mkfs'ed
fsck.f2fs /dev/sda2
Info: Segments per section = 1
Info: Sections per zone = 1
Info: sector size = 512
Info: total sectors = 6508544 (3178 MB)
Info: MKFS version
"Linux version 4.4.0-21-generic (buildd@lgw01-21) (gcc version 5.3.1 20160413
(Ubuntu 5.3.1-14ubuntu2) ) #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016"
Info: FSCK version
from "Linux version 4.4.0-21-generic (buildd@lgw01-21) (gcc version 5.3.1
20160413 (Ubuntu 5.3.1-14ubuntu2) ) #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016"
to "Linux version 4.4.30 (vasya@nowhere) (gcc version 5.4.0 (LEDE GCC 5.4.0
r2084) ) #0 PREEMPT Thu Nov 3 07:34:38 2016"
Info: superblock features = 0 :
Info: superblock encrypt level = 0, salt = 00000000000000000000000000000000
Info: total FS sectors = 6508544 (3178 MB)
Info: CKPT version = 1
Info: checkpoint state = 5 : compacted_summary unmount
[ASSERT] (sanity_check_nid: 356) --> nid is not valid. [0x3]
NID[0x3] is unreachable
[FSCK] Unreachable nat entries [Fail] [0x1]
[FSCK] SIT valid block bitmap checking [Fail]
[FSCK] Hard link checking for regular file [Ok..] [0x0]
[FSCK] valid_block_count matching with CP [Fail] [0x0]
[FSCK] valid_node_count matcing with CP (de lookup) [Fail] [0x0]
[FSCK] valid_node_count matcing with CP (nat lookup) [Ok..] [0x1]
[FSCK] valid_inode_count matched with CP [Fail] [0x0]
[FSCK] free segment_count matched with CP [Fail] [0x621]
[FSCK] next block offset is free [Ok..]
[FSCK] fixing SIT types
[FSCK] other corrupted bugs [Fail]
[FIX] (nullify_nat_entry:1688) --> Remove nid [0x3] in nat journal
After failed mount attempt :
dmesg
F2FS-fs (sda2): Failed to read root inode
On x86 and ARM everything is ok
f2fs-tools 1.7.0
kernel 4.4.30
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