[EXT4-fs zram0 Checksum error]

3 minutes ago, NicoD said:

That's ok. It's the same, but a bit different configuration. It's 2GB zram.
If it works, then let it. Unless you don't want zram. Then you can delete it.

I'm ok but I just don't want to have any performance problems.

 

 

Before zram0 was mounted in /var/log. What happens with the logs now.? This box is mainly for servers. 

[EXT4-fs zram0 Checksum error]

######before zram-confing

~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 24G 0 part /
├─sda2 8:2 0 16G 0 part [SWAP]
└─sda3 8:3 0 891.5G 0 part /opt
mtdblock0 31:0 0 4M 0 disk
zram0 252:0 0 50M 0 disk /var/log
zram1 252:1 0 2G 0 disk [SWAP]

 

######after zram-config

~# lsblk
NAME      MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda         8:0    0 931.5G  0 disk 
├─sda1      8:1    0    24G  0 part /
├─sda2      8:2    0    16G  0 part [SWAP]
└─sda3      8:3    0 891.5G  0 part /opt
mtdblock0  31:0    0     4M  0 disk 
zram0     252:0    0 498.6M  0 disk [SWAP]
zram1     252:1    0 498.6M  0 disk [SWAP]
zram2     252:2    0 498.6M  0 disk [SWAP]
zram3     252:3    0 498.6M  0 disk [SWAP]

 

how do i make it back as it was?

[EXT4-fs zram0 Checksum error]

22 minutes ago, NicoD said:

It's just :

sudo apt install zram-config

 

Yeah, did that. BTW, the zram-config tool wasn't installed by default on my system. is that normal or ...strange?

[EXT4-fs zram0 Checksum error]

9 hours ago, NicoD said:

Hi. Maybe you could try to remove and reinstall zram-config.

Open another terminal ALT-Fx

sudo apt remove zram-config. Reboot and reinstall it.
I have no clue why this happened.
Please also provide the output of armbianmonitor -u if possible.
 

Sorry for asking but how do you reinstall zram-config? ~sudo apt install zram-config"?  Is there any danger in doing that? I can't say i'm a linux guru by any means. 

 

 I would also like to do something about the logging because nginx also gives me full zram messages all the time.

[EXT4-fs zram0 Checksum error]

I think this should be it, hope you can take a look at  my armbianmonitor -u:

http://ix.io/1MXs

[EXT4-fs zram0 Checksum error]

I am getting a series of errors related to EXT4 zram checksum that look like this one:

[3328.749555] EXT4-fs error (device zram0): ext4_readdir:189: inode #11 com find: path var/log/lost+found directory fails checksum at offset 4096 (and other offsets) 

 

I've  seen a recommendation as a possible fix to the checksum error :  disabling metadata_csum, using "tune2fs -O ^metadata_csum /dev/zram0", with the file system umounted (I don't know how to unmount zram) 

 

The error apparently is related to bad hardware (not the case) , old kernels that don't support new versions of programs capable of altering the fs. Like a newer  checksum feature, or a new e2fsprogs. Would appreciate some help. Thx.