Once a week my DELL server will face this issue. Suddenly the screen full with I/O Error. And I even can't login. Here is the most I/O error i facing now:

EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
cfq: depth 4 reached, tagging now on
kjournald starting. Commit interval 5 seconds
EXT3-fs: sda3: orphan cleanup on readonly fs
ext3_orphan_cleanup: deleting unreferenced inode 1960377
ext3_orphan_cleanup: deleting unreferenced inode 1960374
ext3_orphan_cleanup: deleting unreferenced inode 1960373
ext3_orphan_cleanup: deleting unreferenced inode 1960369
ext3_orphan_cleanup: deleting unreferenced inode 1960323
EXT3-fs: sda3: 5 orphan inodes deleted
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
SELinux: Disabled at runtime.
SELinux: Unregistering netfilter hooks

Mind to tell me what happen? Normally I have to reboot it to solve the issue but when i happen again what i do is just reboot. I would like to seek the solution. Thank you.


OS: Fedora Core 4
Server: DELL PE2650

hello i have an idea here.

it looks like you have a bad superblock. perhaps you can repair this by using the backup superblock by doing 'e2fsck -b <superblock> /dev/hdaX'.

do 'man e2fsck' for more info.

usually it's 'e2fsck -p -b 8193 /dev/hdaX' but it always depends on the fs' blocksize.

this command saved my filesystem before but i can't remember if some of my files were deleted. remember that this is always up to you and you'll do it at your own risk.

i suggest you make more research about the command.

hope this helps

Edit: btw you can have more info about your fs using debugfs. do 'debugfs /dev/hdaX | less -S'

1- Can I run this command >> "debugfs /dev/hdaX | less -S" during system is online?

2- How do can I find my own superblock size? ( Sorry for newbie question )

your superblock size appears when invoking debugfs. if you're not in console, you can run the commands by opening a terminal. example konsole or xterm. just browse kde's 'k menu'.

btw replace X in hdaX with the proper partition number of the filesystem in question. example hda1.

When I do debugfs. I get this

debugfs: stat
Segmentation fault

sorry i made a quick response. i'll admit this is my mistake. it should be: