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[Luca Ognibene <luca.ognibene@xxxxxxxxx>]

Public bug reported:

We are using ext4 as the root filesystem for our server based on ubuntu
precise 12.04.2 (kernel version 3.8.0-31-generic #46~precise1-Ubuntu).
The same image for the root filesystem is copied over and over to
different dom disks so all servers have the same partition data. It
happened to three of our clients a root file system corruption. I'm
attaching parted and e2fsck log output. Two systems have different
motherboard and different cpu so it doesn't seem to be hardware
dependent. I don't get errors while using dd to copy data from the drive
but i have errors if i try to use tar:

root:~/a# tar cf sda.tar m
tar: m/lib/x86_64-linux-gnu: Cannot stat: Input/output error

If i look at the partition's content i see that x86_64-linux-gnu is now
a file and not a directory. I have exactly the same problem on the
others servers. What can be the problem? What can i do?

The system is 64bit and the root file system is created with: mkfs.ext4
-F -m 1

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: precise

** Attachment added: "e2fsck.log"
   https://bugs.launchpad.net/bugs/1273776/+attachment/3960878/+files/e2fsck.log

** Tags added: precise

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https://bugs.launchpad.net/bugs/1273776

Title:
  same ext4 corruption in multiple systems

Status in “linux” package in Ubuntu:
  New

Bug description:
  We are using ext4 as the root filesystem for our server based on
  ubuntu precise 12.04.2 (kernel version 3.8.0-31-generic
  #46~precise1-Ubuntu). The same image for the root filesystem is copied
  over and over to different dom disks so all servers have the same
  partition data. It happened to three of our clients a root file system
  corruption. I'm attaching parted and e2fsck log output. Two systems
  have different motherboard and different cpu so it doesn't seem to be
  hardware dependent. I don't get errors while using dd to copy data
  from the drive but i have errors if i try to use tar:

  root:~/a# tar cf sda.tar m
  tar: m/lib/x86_64-linux-gnu: Cannot stat: Input/output error

  If i look at the partition's content i see that x86_64-linux-gnu is
  now a file and not a directory. I have exactly the same problem on the
  others servers. What can be the problem? What can i do?

  The system is 64bit and the root file system is created with:
  mkfs.ext4 -F -m 1

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