On 2020/1/13 21:49, Stephanos Mallouris wrote:
> Dear All,
>
> I have made a fresh test and trial.
> Please see my actions.
>
> 1. First i disk dump the original image file to a new hard drive
> partition i first created (20GB)
> using the command:
> sudo dd if=mmcblk0p49.raw bs=4096 status=progress of=/dev/sdc1.
>
> 2. Downloaded using git and patching main.c per your instructions.
>
> 3. Make the patched f2fs-tools.
>
> 4. Put the new drive with the partition using USB, regognized as sdc , sdc1.
>
> 5. Go this result on trying the dump.f2fs
> elementary@elementary:/media/elementary/mysparky/work_on_f2fs$ sudo
> dump.f2fs -i3 /dev/sdc1
> Info: [/dev/sdc1] Disk Model: HDWJ110
> Info: Segments per section = 1
> Info: Sections per zone = 1
> Info: sector size = 512
> Info: total sectors = 42008576 (20512 MB)
> Info: MKFS version
> "Linux version 4.1.46-EliteKernelReborn-v5+ (hassanmirza01@ubuntu)
> (gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Fri Jan
> 19 17:16:04 PKT 2018"
> Info: FSCK version
> from "Linux version 4.15.0-36-generic (buildd@lgw01-amd64-031) (gcc
> version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #39-Ubuntu SMP Mon Sep 24
> 16:19:09 UTC 2018"
> to "Linux version 4.15.0-36-generic (buildd@lgw01-amd64-031) (gcc
> version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #39-Ubuntu SMP Mon Sep 24
> 16:19:09 UTC 2018"
> Info: superblock features = 0 :
> Info: superblock encrypt level = 0, salt = 00000000000000000000000000000000
> Info: total FS sectors = 22310912 (10894 MB)
> Info: CKPT version = 1307e4
> [print_node_info: 267] Node ID [0x0:0] is inode
> i_mode [0x 0 : 0]
> i_advise [0x 0 : 0]
> i_uid [0x 0 : 0]
> i_gid [0x 0 : 0]
> i_links [0x 0 : 0]
> i_size [0x 0 : 0]
> i_blocks [0x 0 : 0]
> i_atime [0x 0 : 0]
> i_atime_nsec [0x 0 : 0]
> i_ctime [0x 0 : 0]
> i_ctime_nsec [0x 0 : 0]
> i_mtime [0x 0 : 0]
> i_mtime_nsec [0x 0 : 0]
> i_generation [0x 0 : 0]
> i_current_depth [0x 0 : 0]
> i_xattr_nid [0x 0 : 0]
> i_flags [0x 0 : 0]
> i_inline [0x 0 : 0]
> i_pino [0x 0 : 0]
> i_dir_level [0x 0 : 0]
> i_ext: fofs:0 blkaddr:0 len:0
> i_addr[ofs] [0x 0 : 0]
> i_addr[ofs + 1] [0x 0 : 0]
> i_addr[ofs + 2] [0x 0 : 0]
> i_addr[ofs + 3] [0x 0 : 0]
> i_nid[0] [0x 0 : 0]
> i_nid[1] [0x 0 : 0]
> i_nid[2] [0x 0 : 0]
> i_nid[3] [0x 0 : 0]
> i_nid[4] [0x 0 : 0]
>
> Invalid (i)node block
>
> Info: checkpoint state = 4 : compacted_summary sudden-power-off
>
> Done: 0.024776 secs
>
> 6. then tried twice to sudo fsck.f2fs /dev/sdc1 and on the second time i
> think
> the patched code work due to giving :
>
> sudo fsck.f2fs /dev/sdc1
> Info: [/dev/sdc1] Disk Model: HDWJ110
> Info: Segments per section = 1
> Info: Sections per zone = 1
> Info: sector size = 512
> Info: total sectors = 42008576 (20512 MB)
> Info: MKFS version
> "Linux version 4.1.46-EliteKernelReborn-v5+ (hassanmirza01@ubuntu)
> (gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Fri Jan
> 19 17:16:04 PKT 2018"
> Info: FSCK version
> from "Linux version 4.15.0-36-generic (buildd@lgw01-amd64-031) (gcc
> version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #39-Ubuntu SMP Mon Sep 24
> 16:19:09 UTC 2018"
> to "Linux version 4.15.0-36-generic (buildd@lgw01-amd64-031) (gcc
> version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #39-Ubuntu SMP Mon Sep 24
> 16:19:09 UTC 2018"
> Info: superblock features = 0 :
> Info: superblock encrypt level = 0, salt = 00000000000000000000000000000000
> Info: total FS sectors = 22310912 (10894 MB)
> Info: CKPT version = 1307e4
> Info: Checked valid nat_bits in checkpoint
> Info: checkpoint state = 281 : allow_nocrc nat_bits unmount
Hi,
Thanks for the feedback. :)
> [ASSERT] (is_root_nat_corrupted: 610) --> nid[0x3] ino is 0
Oh, if above message was printed, I guess fsck_find_and_link_root()
should be called later.
However, I didn't see "Relink root inode, blkaddr: 0x%x" message,
that means fsck_find_and_link_root() didn't find any root inode
candidates by below condition:
fsck_find_and_link_root()
...
if (node_blk->footer.ino == sbi->root_ino_num &&
node_blk->footer.nid == sbi->root_ino_num)
break;
Firstly, I found I missed to call le32_to_cpu() before using footer.ino and
footer.nid field, will fix this bug in v2.
Secondly, maybe footer.ino and footer.nid in root inode were broken, I
suggest we can try below single condition or their conbinations:
- i_generation == 0
- i_namelen == 0
- i_name[] == { 0 }
- le32_to_cpu(node_blk->footer.ino) == sbi->root_ino_num
- le32_to_cpu(node_blk->footer.nid) == sbi->root_ino_num
Something like this:
if (le32_to_cpu(node_blk->footer.ino) ==
sbi->root_ino_num ||
le32_to_cpu(node_blk->footer.nid) ==
sbi->root_ino_num ||
(IS_INODE(node_blk) &&
(le32_to_cpu(node_blk->i.i_generation
== 0) ||
le32_to_cpu(node_blk->i.i_namelen == 0)
||
memcmp(node_blk->i.i_name,
all_zero_memory, F2FS_NAME_LEN)))) {
printf("valid_bitmap: %d, nid: %du\n",
valid_bitmap,
le32_to_cpu(node_blk->footer.nid));
continue;
}
and dump all node via dump.f2fs -i nid /dev/... to verify all fields
in that inode to find which one is mostly like root inode.
> [ASSERT] (sanity_check_nid: 392) --> nid[0x3] ino is 0
I didn't see any progress w/ my patch, as we still didn't find and repair
root inode...
Thanks,
>
> [FSCK] Unreachable nat entries [Ok..] [0x0]
> [FSCK] SIT valid block bitmap checking [Ok..]
> [FSCK] Hard link checking for regular file [Ok..] [0x0]
> [FSCK] valid_block_count matching with CP [Ok..] [0x0]
> [FSCK] valid_node_count matcing with CP (de lookup) [Ok..] [0x0]
> [FSCK] valid_node_count matcing with CP (nat lookup) [Ok..] [0x0]
> [FSCK] valid_inode_count matched with CP [Ok..] [0x0]
> [FSCK] free segment_count matched with CP [Ok..] [0x1519]
> [FSCK] next block offset is free [Ok..]
> [FSCK] fixing SIT types
> [FSCK] other corrupted bugs [Fail]
>
> So now the checkpoing changed to
> Info: checkpoint state = 281 : allow_nocrc nat_bits unmount
>
> from
>
> Info: checkpoint state = 4 : compacted_summary sudden-power-off
>
> so i believe there is some progress...
>
> 7. Now when i try to mount the sdc1 partiotion , using dmesg i get the
> following
> information
>
> [ 5553.260078] sdc: sdc1
> [ 5563.337756] sdc: sdc1
> [ 5606.821439] F2FS-fs (sdc1): Found nat_bits in checkpoint
> [ 5606.965813] F2FS-fs (sdc1): Found nat_bits in checkpoint
>
> And unfortunatly i am unable to Mount It.
>
> Please advice on further actions and steps.. i think we are getting somewhere.
>
> Regarding previous email the correct information is
> [ASSERT] (sanity_check_nid: 418) --> nid[0x3] nat_entry->ino[0x3]
>> footer.ino[0x0]
>
> Regards
>
> Stephanos M.
>
>
>
>
>
>
>
>
>
>
>
>
> On 1/8/20, Chao Yu <yuch...@huawei.com> wrote:
>> Hi Stephanos,
>>
>> On 2020/1/7 22:09, Stephanos Mallouris wrote:
>>> Dear Yu,
>>>
>>> Thanks for the reply, i did patch and compile the f2fs-tools.
>>> I run two cases
>>> 1. sudo ./fsck.f2fs /media/elementary/eengineering/mmcblk0p49.raw
>>> --dry-run -a -y
>>>
>>> Results attached in firest log file
>>>
>>> 2. sudo ./fsck.f2fs /media/elementary/eengineering/mmcblk0p49.raw
>>> --dry-run -a -y
>>
>> It looks running fsck two times still didn't repair the partition.
>>
>>>
>>> Results attached in second log file
>>>
>>> Please have a look, when possible, assistance is much appreciated.
>>>
>>> Attaching also the main.c patched file.
>>
>> I found the output is not the same as you reported previously:
>>
>> Previous:
>> [ASSERT] (sanity_check_nid: 362) --> nid[0x3] ino is 0
>>
>> Now:
>> [ASSERT] (sanity_check_nid: 418) --> nid[0x3] nat_entry->ino[0x3]
>> footer.ino[0x0]
>>
>> Did you run fsck on original backuped image? or we have ran fsck several
>> times
>> on current image before run patched fsck?
>>
>> And I didn't find debug message such as "Relink root inode, blkaddr: 0x%x",
>> That means my patch didn't fix anything on your current image, fsck still
>> failed
>> due to sanity check find another inconsistency on root inode ( which needs
>> another
>> patch to fix maybe...).
>>
>> Could you dump root inode info on current image?
>>
>> dump.f2fs -i 3 /media/elementary/eengineering/mmcblk0p49.raw
>>
>> Thanks,
>>
>>>
>>> Regards
>>>
>>> stephanos m
>>>
>>>
>>>
>>> On 12/31/19, Chao Yu <yuch...@huawei.com> wrote:
>>>> Hi,
>>>>
>>>> Sorry for the delay.
>>>>
>>>> I figure out a patch to handle your case, w/ this patch, fsck will try
>>>> to
>>>> search
>>>> root inode and once it finds the target, it will relink it to its nat
>>>> entry,
>>>> after this, all following check in fsck could be executed later.
>>>>
>>>> If you still keep that corrupted image, could you please have a try w/
>>>> this
>>>> patch?
>>>>
>>>> [PATCH] fsck.f2fs: lookup and relink root inode
>>>>
>>>> Thanks,
>>>>
>>>> On 2019/12/17 18:11, Stephanos Mallouris wrote:
>>>>> Hi to all,
>>>>>
>>>>> Sorry for the late reply. running the commands as suggested gave the
>>>>> following:
>>>>>
>>>>> 1. # dump.f2fs -i 0x3 /dev/sdc3
>>>>>
>>>>> Info: sector size = 512
>>>>> Info: total sectors = 25624576 (12512 MB)
>>>>> Info: MKFS version
>>>>> "Linux version 4.1.46-EliteKernelReborn-v5+ (hassanmirza01@ubuntu)
>>>>> (gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Fri Jan
>>>>> 19 17:16:04 PKT 2018"
>>>>> Info: FSCK version
>>>>> from "Linux version 4.1.46-EliteKernelReborn-v6+
>>>>> (hassanmirza01@ubuntu) (gcc version 4.9 20150123 (prerelease) (GCC) )
>>>>> #1 SMP PREEMPT Sat Jan 27 00:46:02 PKT 2018"
>>>>> to "Linux version 4.4.0-170-generic (buildd@lgw01-amd64-015) (gcc
>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) ) #199-Ubuntu
>>>>> SMP Thu Nov 14 01:44:41 UTC 2019"
>>>>> Info: superblock features = 0 :
>>>>> Info: superblock encrypt level = 0, salt =
>>>>> 00000000000000000000000000000000
>>>>> Info: total FS sectors = 22310912 (10894 MB)
>>>>> Info: CKPT version = 1307e4
>>>>> Info: checkpoint state = 4 : compacted_summary sudden-power-off
>>>>> Invalid node block
>>>>>
>>>>>
>>>>> Done.
>>>>>
>>>>> 2. # dump.f2fs -i 0x4 /dev/sdc3
>>>>>
>>>>> Info: sector size = 512
>>>>> Info: total sectors = 25624576 (12512 MB)
>>>>> Info: MKFS version
>>>>> "Linux version 4.1.46-EliteKernelReborn-v5+ (hassanmirza01@ubuntu)
>>>>> (gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Fri Jan
>>>>> 19 17:16:04 PKT 2018"
>>>>> Info: FSCK version
>>>>> from "Linux version 4.4.0-170-generic (buildd@lgw01-amd64-015) (gcc
>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) ) #199-Ubuntu
>>>>> SMP Thu Nov 14 01:44:41 UTC 2019"
>>>>> to "Linux version 4.4.0-170-generic (buildd@lgw01-amd64-015) (gcc
>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) ) #199-Ubuntu
>>>>> SMP Thu Nov 14 01:44:41 UTC 2019"
>>>>> Info: superblock features = 0 :
>>>>> Info: superblock encrypt level = 0, salt =
>>>>> 00000000000000000000000000000000
>>>>> Info: total FS sectors = 22310912 (10894 MB)
>>>>> Info: CKPT version = 1307e4
>>>>> Info: checkpoint state = 4 : compacted_summary sudden-power-off
>>>>> [print_node_info: 103] Node ID [0x4:4] is inode
>>>>> i_mode [0x 41f8 : 16888]
>>>>> i_advise [0x 2 : 2]
>>>>> i_uid [0x 3ff : 1023]
>>>>> i_gid [0x 3ff : 1023]
>>>>> i_links [0x 5 : 5]
>>>>> i_size [0x 1000 : 4096]
>>>>> i_blocks [0x 3 : 3]
>>>>> i_atime [0x5c52cc67 : 1548930151]
>>>>> i_atime_nsec [0x380742f0 : 939999984]
>>>>> i_ctime [0x5da861d5 : 1571316181]
>>>>> i_ctime_nsec [0x232aaf7f : 589999999]
>>>>> i_mtime [0x5ca8c4a0 : 1554564256]
>>>>> i_mtime_nsec [0x bebc1fd : 199999997]
>>>>> i_generation [0x414c2cfb : 1095511291]
>>>>> i_current_depth [0x 1 : 1]
>>>>> i_xattr_nid [0x 5 : 5]
>>>>> i_flags [0x 0 : 0]
>>>>> i_inline [0x 0 : 0]
>>>>> i_pino [0x 3 : 3]
>>>>> i_namelen [0x 5 : 5]
>>>>> i_name [media]
>>>>> i_ext: fofs:0 blkaddr:0 len:0
>>>>> i_addr[0] [0x 294852 : 2705490]
>>>>> i_addr[1] [0x 0 : 0]
>>>>> i_addr[2] [0x 0 : 0]
>>>>> i_addr[3] [0x 0 : 0]
>>>>> i_nid[0] [0x 0 : 0]
>>>>> i_nid[1] [0x 0 : 0]
>>>>> i_nid[2] [0x 0 : 0]
>>>>> i_nid[3] [0x 0 : 0]
>>>>> i_nid[4] [0x 0 : 0]
>>>>>
>>>>> Not a regular file
>>>>>
>>>>>
>>>>> Done.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> 3. dump.f2fs -i 0x5 /dev/sdc3
>>>>>
>>>>> Info: sector size = 512
>>>>> Info: total sectors = 25624576 (12512 MB)
>>>>> Info: MKFS version
>>>>> "Linux version 4.1.46-EliteKernelReborn-v5+ (hassanmirza01@ubuntu)
>>>>> (gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Fri Jan
>>>>> 19 17:16:04 PKT 2018"
>>>>> Info: FSCK version
>>>>> from "Linux version 4.4.0-170-generic (buildd@lgw01-amd64-015) (gcc
>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) ) #199-Ubuntu
>>>>> SMP Thu Nov 14 01:44:41 UTC 2019"
>>>>> to "Linux version 4.4.0-170-generic (buildd@lgw01-amd64-015) (gcc
>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) ) #199-Ubuntu
>>>>> SMP Thu Nov 14 01:44:41 UTC 2019"
>>>>> Info: superblock features = 0 :
>>>>> Info: superblock encrypt level = 0, salt =
>>>>> 00000000000000000000000000000000
>>>>> Info: total FS sectors = 22310912 (10894 MB)
>>>>> Info: CKPT version = 1307e4
>>>>> Info: checkpoint state = 4 : compacted_summary sudden-power-off
>>>>> [print_node_info: 109] Node ID [0x5:5] is direct node or indirect node.
>>>>> [0] [0xf2f52011 : -218816495]
>>>>> [1] [0x 1 : 1]
>>>>> [2] [0x 0 : 0]
>>>>> [3] [0x 0 : 0]
>>>>> [4] [0x 0 : 0]
>>>>> [5] [0x 0 : 0]
>>>>> [6] [0x 210706 : 2164486]
>>>>> [7] [0x696c6573 : 1768711539]
>>>>> [8] [0x7578756e : 1970828654]
>>>>> [9] [0x6a626f3a : 1784835898]
>>>>> [10] [0x5f746365 : 1601463141]
>>>>> Not a regular file
>>>>>
>>>>>
>>>>> Done.
>>>>>
>>>>> Those are the results. Hoping for your assistance and help
>>>>>
>>>>> Regards
>>>>>
>>>>> Stephanos M.
>>>>>
>>>>>
>>>>>
>>>>> On 12/4/19, Chao Yu <yuch...@huawei.com> wrote:
>>>>>> Hi Jaegeuk,
>>>>>>
>>>>>> On 2019/12/4 1:43, Jaegeuk Kim wrote:
>>>>>>> Hi,
>>>>>>>
>>>>>>> I think you didn't back up the root inode block, since it showed
>>>>>>> zeros.
>>>>>>> Could you try the below a bit on fresh back-up image again?
>>>>>>>
>>>>>>> # dump.f2fs -i 0x3 /dev/sdc1
>>>>>>> # dump.f2fs -i 0x4 /dev/sdc1
>>>>>>> # dump.f2fs -i 0x5 /dev/sdc1
>>>>>>
>>>>>> Quoted:
>>>>>> "[ASSERT] (sanity_check_nid: 362) --> nid[0x3] ino is 0"
>>>>>>
>>>>>> Look into log in the Stephanos' first report email, it looks like nat
>>>>>> entry
>>>>>> of root inode was broken, if this is true, IMO, we have to add a
>>>>>> routine
>>>>>> to
>>>>>> detect such inconsistence and lookup last root inode and relink to its
>>>>>> nat
>>>>>> entry.
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>> On 11/28, Stephanos Mallouris wrote:
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> Thanks for the effort and advice .
>>>>>>>> Did execute the command. It gave a lot of information ,
>>>>>>>> so i am attaching that to a file.
>>>>>>>>
>>>>>>>> Regards
>>>>>>>>
>>>>>>>> Stephanos
>>>>>>>>
>>>>>>>>
>>>>>>>> On 11/27/19, Jaegeuk Kim <jaeg...@kernel.org> wrote:
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> On 11/27, Stephanos Mallouris wrote:
>>>>>>>>>> Dear Kim ,
>>>>>>>>>>
>>>>>>>>>> Regarding the question:
>>>>>>>>>>
>>>>>>>>>> "Hmm, # of valid blocks is 0, which is really impossible.
>>>>>>>>>> Do you have original backed up image? I think at some point the
>>>>>>>>>> image
>>>>>>>>>> was overwritten when fsck.f2fs tried to fix.
>>>>>>>>>> "
>>>>>>>>>>
>>>>>>>>>> I do have the original dump raw image. Please advice actions
>>>>>>>>>> to assist in recovering it.
>>>>>>>>>
>>>>>>>>> Could you share the first run with that image?
>>>>>>>>> # fsck.f2fs -d 3 "fresh backup image"
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> I did a dd to an external drive, and from where i tried
>>>>>>>>>> unsuccessful
>>>>>>>>>> so
>>>>>>>>>> far.
>>>>>>>>>> I use the following command
>>>>>>>>>>
>>>>>>>>>> sudo dd if=mmcblk0p49.raw bs=512 oflag=sync status=progress
>>>>>>>>>> of=/dev/sda1
>>>>>>>>>>
>>>>>>>>>> mmcblk0p49.raw is the backup partitioned.
>>>>>>>>>>
>>>>>>>>>> Thanks in advance
>>>>>>>>>>
>>>>>>>>>> Stephanos M.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On 11/26/19, Jaegeuk Kim <jaeg...@kernel.org> wrote:
>>>>>>>>>>> On 11/26, Stephanos Mallouris wrote:
>>>>>>>>>>>> Dear Kim,
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks for getting back to me.
>>>>>>>>>>>>
>>>>>>>>>>>> I executed the command fsck.f2fs -d 3 -f /dev/sdc1
>>>>>>>>>>>> and it gave me the following information:
>>>>>>>>>>>>
>>>>>>>>>>>> Info: Debug level = 3
>>>>>>>>>>>> Info: Force to fix corruption
>>>>>>>>>>>> Info: sector size = 512
>>>>>>>>>>>> Info: total sectors = 22310913 (10894 MB)
>>>>>>>>>>>> Info: MKFS version
>>>>>>>>>>>> "Linux version 4.1.46-EliteKernelReborn-v5+
>>>>>>>>>>>> (hassanmirza01@ubuntu)
>>>>>>>>>>>> (gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT
>>>>>>>>>>>> Fri
>>>>>>>>>>>> Jan
>>>>>>>>>>>> 19 17:16:04 PKT 2018"
>>>>>>>>>>>> Info: FSCK version
>>>>>>>>>>>> from "Linux version 4.4.0-169-generic (buildd@lgw01-amd64-022)
>>>>>>>>>>>> (gcc
>>>>>>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>>>>>>> #198-Ubuntu
>>>>>>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>>>>>>> to "Linux version 4.4.0-169-generic (buildd@lgw01-amd64-022)
>>>>>>>>>>>> (gcc
>>>>>>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>>>>>>> #198-Ubuntu
>>>>>>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>>>>>>> Info: superblock features = 0 :
>>>>>>>>>>>> Info: superblock encrypt level = 0, salt =
>>>>>>>>>>>> 00000000000000000000000000000000
>>>>>>>>>>>>
>>>>>>>>>>>> +--------------------------------------------------------+
>>>>>>>>>>>> | Super block |
>>>>>>>>>>>> +--------------------------------------------------------+
>>>>>>>>>>>> magic [0xf2f52010 :
>>>>>>>>>>>> 4076150800]
>>>>>>>>>>>> major_ver [0x 1 : 1]
>>>>>>>>>>>> volum_name []
>>>>>>>>>>>> minor_ver [0x 7 : 7]
>>>>>>>>>>>> log_sectorsize [0x 9 : 9]
>>>>>>>>>>>> log_sectors_per_block [0x 3 : 3]
>>>>>>>>>>>> log_blocksize [0x c : 12]
>>>>>>>>>>>> log_blocks_per_seg [0x 9 : 9]
>>>>>>>>>>>> segs_per_sec [0x 1 : 1]
>>>>>>>>>>>> secs_per_zone [0x 1 : 1]
>>>>>>>>>>>> checksum_offset [0x 0 : 0]
>>>>>>>>>>>> block_count [0x 2a8e00 : 2788864]
>>>>>>>>>>>> section_count [0x 151f : 5407]
>>>>>>>>>>>> segment_count [0x 1546 : 5446]
>>>>>>>>>>>> segment_count_ckpt [0x 2 : 2]
>>>>>>>>>>>> segment_count_sit [0x 2 : 2]
>>>>>>>>>>>> segment_count_nat [0x 18 : 24]
>>>>>>>>>>>> segment_count_ssa [0x b : 11]
>>>>>>>>>>>> segment_count_main [0x 151f : 5407]
>>>>>>>>>>>> segment0_blkaddr [0x 200 : 512]
>>>>>>>>>>>> cp_blkaddr [0x 200 : 512]
>>>>>>>>>>>> sit_blkaddr [0x 600 : 1536]
>>>>>>>>>>>> nat_blkaddr [0x a00 : 2560]
>>>>>>>>>>>> ssa_blkaddr [0x 3a00 : 14848]
>>>>>>>>>>>> main_blkaddr [0x 5000 : 20480]
>>>>>>>>>>>> root_ino [0x 3 : 3]
>>>>>>>>>>>> node_ino [0x 1 : 1]
>>>>>>>>>>>> meta_ino [0x 2 : 2]
>>>>>>>>>>>> cp_payload [0x 0 : 0]
>>>>>>>>>>>> version Linux version 4.4.0-169-generic
>>>>>>>>>>>> (buildd@lgw01-amd64-022) (gcc version 5.4.0 20160609 (Ubuntu
>>>>>>>>>>>> 5.4.0-6ubuntu1~16.04.12) ) #198-Ubuntu SMP Tue Nov 12 10:34:23
>>>>>>>>>>>> UTC
>>>>>>>>>>>> 2019
>>>>>>>>>>>> Info: total FS sectors = 22310912 (10894 MB)
>>>>>>>>>>>> Info: CKPT version = 1307e4
>>>>>>>>>>>>
>>>>>>>>>>>> +--------------------------------------------------------+
>>>>>>>>>>>> | Checkpoint |
>>>>>>>>>>>> +--------------------------------------------------------+
>>>>>>>>>>>> checkpoint_ver [0x 1307e4 : 1247204]
>>>>>>>>>>>> user_block_count [0x 289400 : 2659328]
>>>>>>>>>>>> valid_block_count [0x 0 : 0]
>>>>>>>>>>>
>>>>>>>>>>> Hmm, # of valid blocks is 0, which is really impossible.
>>>>>>>>>>> Do you have original backed up image? I think at some point the
>>>>>>>>>>> image
>>>>>>>>>>> was overwritten when fsck.f2fs tried to fix.
>>>>>>>>>>>
>>>>>>>>>>>> rsvd_segment_count [0x 70 : 112]
>>>>>>>>>>>> overprov_segment_count [0x d5 : 213]
>>>>>>>>>>>> free_segment_count [0x 1519 : 5401]
>>>>>>>>>>>> alloc_type[CURSEG_HOT_NODE] [0x 1 : 1]
>>>>>>>>>>>> alloc_type[CURSEG_WARM_NODE] [0x 1 : 1]
>>>>>>>>>>>> alloc_type[CURSEG_COLD_NODE] [0x 1 : 1]
>>>>>>>>>>>> cur_node_segno[0] [0x 3 : 3]
>>>>>>>>>>>> cur_node_segno[1] [0x 4 : 4]
>>>>>>>>>>>> cur_node_segno[2] [0x 5 : 5]
>>>>>>>>>>>> cur_node_blkoff[0] [0x 0 : 0]
>>>>>>>>>>>> cur_node_blkoff[1] [0x 0 : 0]
>>>>>>>>>>>> cur_node_blkoff[2] [0x 0 : 0]
>>>>>>>>>>>> alloc_type[CURSEG_HOT_DATA] [0x 1 : 1]
>>>>>>>>>>>> alloc_type[CURSEG_WARM_DATA] [0x 1 : 1]
>>>>>>>>>>>> alloc_type[CURSEG_COLD_DATA] [0x 1 : 1]
>>>>>>>>>>>> cur_data_segno[0] [0x 0 : 0]
>>>>>>>>>>>> cur_data_segno[1] [0x 1 : 1]
>>>>>>>>>>>> cur_data_segno[2] [0x 2 : 2]
>>>>>>>>>>>> cur_data_blkoff[0] [0x 0 : 0]
>>>>>>>>>>>> cur_data_blkoff[1] [0x 0 : 0]
>>>>>>>>>>>> cur_data_blkoff[2] [0x 0 : 0]
>>>>>>>>>>>> ckpt_flags [0x 1 : 1]
>>>>>>>>>>>> cp_pack_total_block_count [0x 8 : 8]
>>>>>>>>>>>> cp_pack_start_sum [0x 1 : 1]
>>>>>>>>>>>> valid_node_count [0x 0 : 0]
>>>>>>>>>>>> valid_inode_count [0x 0 : 0]
>>>>>>>>>>>> next_free_nid [0x 14105 : 82181]
>>>>>>>>>>>> sit_ver_bitmap_bytesize [0x 40 : 64]
>>>>>>>>>>>> nat_ver_bitmap_bytesize [0x 300 : 768]
>>>>>>>>>>>> checksum_offset [0x ffc : 4092]
>>>>>>>>>>>> elapsed_time [0x 167a468 : 23569512]
>>>>>>>>>>>> sit_nat_version_bitmap[0] [0x 79 : 121]
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x4bb2] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x6ba0] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x783c] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xa0ec] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xab88] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xadcd] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xb19c] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xb431] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xb8f4] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xbf40] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xce28] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xd299] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xd56c] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xd8d3] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xe527] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xe67d] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xf88c] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xfc96] in nat cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x10271] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x111d6] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x1154e] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x11b66] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x1271e] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x12abc] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x1339b] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x137d2] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x139ae] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x14363] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x146a2] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x151a3] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x151da] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x15580] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x15744] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x158eb] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x16030] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x1632b] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x16722] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x16c38] in nat
>>>>>>>>>>>> cache
>>>>>>>>>>>> [build_nat_area_bitmap:1718] valid nat entries (block_addr !=
>>>>>>>>>>>> 0x0)
>>>>>>>>>>>> [0x
>>>>>>>>>>>> 0 : 0]
>>>>>>>>>>>> [build_sit_area_bitmap:1214] Blocks [0x0 : 0] Free Segs [0x1519
>>>>>>>>>>>> :
>>>>>>>>>>>> 5401]
>>>>>>>>>>>>
>>>>>>>>>>>> Info: checkpoint state = 1 : unmount
>>>>>>>>>>>> [ASSERT] (sanity_check_nid: 362) --> nid[0x3] ino is 0
>>>>>>>>>>>>
>>>>>>>>>>>> [FSCK] Unreachable nat entries [Ok..]
>>>>>>>>>>>> [0x0]
>>>>>>>>>>>> [FSCK] SIT valid block bitmap checking [Ok..]
>>>>>>>>>>>> [FSCK] Hard link checking for regular file [Ok..]
>>>>>>>>>>>> [0x0]
>>>>>>>>>>>> [FSCK] valid_block_count matching with CP [Ok..]
>>>>>>>>>>>> [0x0]
>>>>>>>>>>>> [FSCK] valid_node_count matcing with CP (de lookup) [Ok..]
>>>>>>>>>>>> [0x0]
>>>>>>>>>>>> [FSCK] valid_node_count matcing with CP (nat lookup) [Ok..]
>>>>>>>>>>>> [0x0]
>>>>>>>>>>>> [FSCK] valid_inode_count matched with CP [Ok..]
>>>>>>>>>>>> [0x0]
>>>>>>>>>>>> [FSCK] free segment_count matched with CP [Ok..]
>>>>>>>>>>>> [0x1519]
>>>>>>>>>>>> [FSCK] next block offset is free [Ok..]
>>>>>>>>>>>> [FSCK] fixing SIT types
>>>>>>>>>>>> [FSCK] other corrupted bugs [Fail]
>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[0] 0 -> 0 after 5000
>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[1] 1 -> 1 after 5000
>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[2] 2 -> 2 after 5000
>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[3] 3 -> 3 after 5000
>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[4] 4 -> 4 after 5000
>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[5] 5 -> 5 after 5000
>>>>>>>>>>>>
>>>>>>>>>>>> Done.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> It still give the same error trying to mount the partiotion.
>>>>>>>>>>>> [57765.609319] F2FS-fs (sdc1): Failed to read root inode
>>>>>>>>>>>> [57765.651048] F2FS-fs (sdc1): Failed to read root inode
>>>>>>>>>>>> [58015.507861] F2FS-fs (sdc1): Failed to read root inode
>>>>>>>>>>>> [58015.563422] F2FS-fs (sdc1): Failed to read root inode
>>>>>>>>>>>>
>>>>>>>>>>>> Please advice and assist if possible.
>>>>>>>>>>>>
>>>>>>>>>>>> Kindest Regards,
>>>>>>>>>>>>
>>>>>>>>>>>> Stephanos Mallouris
>>>>>>>>>>>>
>>>>>>>>>>>> On 11/25/19, Jaegeuk Kim <jaeg...@kernel.org> wrote:
>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>
>>>>>>>>>>>>> On 11/22, Stephanos Mallouris wrote:
>>>>>>>>>>>>>> Dear all,
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I have backup my f2fs android partition via netcat and adb.
>>>>>>>>>>>>>> After loosing the original partition, tried to restore it on a
>>>>>>>>>>>>>> local
>>>>>>>>>>>>>> drive and access it via linux but i am encountering the
>>>>>>>>>>>>>> following
>>>>>>>>>>>>>> issues:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> A. trying the command
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> sudo mount -t f2fs /dev/sdc1 /mnt
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> gives the following error
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> F2FS-fs (sdc1): Failed to read root inode
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> B1. Tried to fsck the file system , see bellow:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> sudo fsck.f2fs -a /dev/sdc1
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> result:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Info: Fix the reported corruption.
>>>>>>>>>>>>>> Info: sector size = 512
>>>>>>>>>>>>>> Info: total sectors = 22310913 (10894 MB)
>>>>>>>>>>>>>> Info: MKFS version
>>>>>>>>>>>>>> "Linux version 4.1.46-EliteKernelReborn-v5+
>>>>>>>>>>>>>> (hassanmirza01@ubuntu)
>>>>>>>>>>>>>> (gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT
>>>>>>>>>>>>>> Fri
>>>>>>>>>>>>>> Jan
>>>>>>>>>>>>>> 19 17:16:04 PKT 2018"
>>>>>>>>>>>>>> Info: FSCK version
>>>>>>>>>>>>>> from "Linux version 4.4.0-169-generic
>>>>>>>>>>>>>> (buildd@lgw01-amd64-022)
>>>>>>>>>>>>>> (gcc
>>>>>>>>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>>>>>>>>> #198-Ubuntu
>>>>>>>>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>>>>>>>>> to "Linux version 4.4.0-169-generic
>>>>>>>>>>>>>> (buildd@lgw01-amd64-022)
>>>>>>>>>>>>>> (gcc
>>>>>>>>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>>>>>>>>> #198-Ubuntu
>>>>>>>>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>>>>>>>>> Info: superblock features = 0 :
>>>>>>>>>>>>>> Info: superblock encrypt level = 0, salt =
>>>>>>>>>>>>>> 00000000000000000000000000000000
>>>>>>>>>>>>>> Info: total FS sectors = 22310912 (10894 MB)
>>>>>>>>>>>>>> Info: CKPT version = 1307e4
>>>>>>>>>>>>>> Info: No error was reported
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Still unable to mount the partiotion , gives the same error.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> B2. Tried
>>>>>>>>>>>>>> sudo fsck.f2fs -f /dev/sdc1
>>>>>>>>>>>>>
>>>>>>>>>>>>> Could you try: fsck.f2fs -d 3 -f /dev/sdc1?
>>>>>>>>>>>>> It seems you didn't back up the entire partition which is
>>>>>>>>>>>>> missing
>>>>>>>>>>>>> root
>>>>>>>>>>>>> inode
>>>>>>>>>>>>> block.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> result
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Info: Force to fix corruption
>>>>>>>>>>>>>> Info: sector size = 512
>>>>>>>>>>>>>> Info: total sectors = 22310913 (10894 MB)
>>>>>>>>>>>>>> Info: MKFS version
>>>>>>>>>>>>>> "Linux version 4.1.46-EliteKernelReborn-v5+
>>>>>>>>>>>>>> (hassanmirza01@ubuntu)
>>>>>>>>>>>>>> (gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT
>>>>>>>>>>>>>> Fri
>>>>>>>>>>>>>> Jan
>>>>>>>>>>>>>> 19 17:16:04 PKT 2018"
>>>>>>>>>>>>>> Info: FSCK version
>>>>>>>>>>>>>> from "Linux version 4.4.0-169-generic
>>>>>>>>>>>>>> (buildd@lgw01-amd64-022)
>>>>>>>>>>>>>> (gcc
>>>>>>>>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>>>>>>>>> #198-Ubuntu
>>>>>>>>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>>>>>>>>> to "Linux version 4.4.0-169-generic
>>>>>>>>>>>>>> (buildd@lgw01-amd64-022)
>>>>>>>>>>>>>> (gcc
>>>>>>>>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>>>>>>>>> #198-Ubuntu
>>>>>>>>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>>>>>>>>> Info: superblock features = 0 :
>>>>>>>>>>>>>> Info: superblock encrypt level = 0, salt =
>>>>>>>>>>>>>> 00000000000000000000000000000000
>>>>>>>>>>>>>> Info: total FS sectors = 22310912 (10894 MB)
>>>>>>>>>>>>>> Info: CKPT version = 1307e4
>>>>>>>>>>>>>> Info: checkpoint state = 1 : unmount
>>>>>>>>>>>>>> [ASSERT] (sanity_check_nid: 362) --> nid[0x3] ino is 0
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> [FSCK] Unreachable nat entries [Ok..]
>>>>>>>>>>>>>> [0x0]
>>>>>>>>>>>>>> [FSCK] SIT valid block bitmap checking [Ok..]
>>>>>>>>>>>>>> [FSCK] Hard link checking for regular file [Ok..]
>>>>>>>>>>>>>> [0x0]
>>>>>>>>>>>>>> [FSCK] valid_block_count matching with CP [Ok..]
>>>>>>>>>>>>>> [0x0]
>>>>>>>>>>>>>> [FSCK] valid_node_count matcing with CP (de lookup) [Ok..]
>>>>>>>>>>>>>> [0x0]
>>>>>>>>>>>>>> [FSCK] valid_node_count matcing with CP (nat lookup) [Ok..]
>>>>>>>>>>>>>> [0x0]
>>>>>>>>>>>>>> [FSCK] valid_inode_count matched with CP [Ok..]
>>>>>>>>>>>>>> [0x0]
>>>>>>>>>>>>>> [FSCK] free segment_count matched with CP [Ok..]
>>>>>>>>>>>>>> [0x1519]
>>>>>>>>>>>>>> [FSCK] next block offset is free [Ok..]
>>>>>>>>>>>>>> [FSCK] fixing SIT types
>>>>>>>>>>>>>> [FSCK] other corrupted bugs [Fail]
>>>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[0] 0 -> 0 after 5000
>>>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[1] 1 -> 1 after 5000
>>>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[2] 2 -> 2 after 5000
>>>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[3] 3 -> 3 after 5000
>>>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[4] 4 -> 4 after 5000
>>>>>>>>>>>>>> [move_curseg_info:1471] Move curseg[5] 5 -> 5 after 5000
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Done.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Trying to mount it , no success, gives
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> F2FS-fs (sdc1): Failed to read root inode.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Any help or advice will be much appreciated.
>>>>>>>>>>>>>> Keep up the great work on f2fs.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Kindest Regards
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Stephanos Mallouris
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>> Linux-f2fs-devel mailing list
>>>>>>>>>>>>>> Linux-f2fs-devel@lists.sourceforge.net
>>>>>>>>>>>>>> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
>>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Linux-f2fs-devel mailing list
>>>>>>> Linux-f2fs-devel@lists.sourceforge.net
>>>>>>> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
>>>>>>> .
>>>>>>>
>>>>>>
>>>>> .
>>>>>
>>>>
>>
> .
>
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