CentOS - Feb 2014 - Filesystem gets corrupted after kernel upgrade to 2.6.32-431.5.1.el6

Hi,

I recently installed some fresh CentOS 6.5 machines and it took only
about 20 minutes until the file system (ext4) was broken.
And with "broken" I mean, that the system wasn't able to find
vital
system libraries any more!

I were able to reproduce it on highly different systems:

 - A fresh installed CentOS 6.5 64 Bit on a virtual machine (KVM)
 - A system which I installed some weeks ago (also a KVM machine) and
did a "yum update" which upgraded to kernel 2.6.32-431.5.1.el6.
 - A fresh installed CentOS 6.5 64 Bit on native hardware on a RAID 5
assembled with mdadm
 - A CentOS 6.4 system installed some months ago on native hardware with
mdadm RAID 5

The last system wasn't able to boot after the upgrade and crashed with
several kernel panics which I can show as a screenshot if there's any
interest - but the display resolution was quite low so there are not
many helpful information :-(



Actually, I assume that there's anything broken with the new kernel or
at least the kernel module for ext4 file system.
You can reproduce it by just doing a "yum update" and rebooting the
system. If it comes up, reboot it again and manually do an offline
filesystem check - or just do some writing activities on the disks.


Is it just me? I don't use any 3rd party repositorys and it blows my
mind that no one else seems to notice...!




Greetings from Wuppertal, Germany
 Max

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On 02/15/2014 11:33 AM, Max Grobecker wrote:
> Hi,
>
> I recently installed some fresh CentOS 6.5 machines and it took only
> about 20 minutes until the file system (ext4) was broken.
> And with "broken" I mean, that the system wasn't able to find
vital
> system libraries any more!
>
> I were able to reproduce it on highly different systems:
>
>  - A fresh installed CentOS 6.5 64 Bit on a virtual machine (KVM)
>  - A system which I installed some weeks ago (also a KVM machine) and
> did a "yum update" which upgraded to kernel 2.6.32-431.5.1.el6.
>  - A fresh installed CentOS 6.5 64 Bit on native hardware on a RAID 5
> assembled with mdadm
>  - A CentOS 6.4 system installed some months ago on native hardware with
> mdadm RAID 5
>
> The last system wasn't able to boot after the upgrade and crashed with
> several kernel panics which I can show as a screenshot if there's any
> interest - but the display resolution was quite low so there are not
> many helpful information :-(
>
>
>
> Actually, I assume that there's anything broken with the new kernel or
> at least the kernel module for ext4 file system.
> You can reproduce it by just doing a "yum update" and rebooting
the
> system. If it comes up, reboot it again and manually do an offline
> filesystem check - or just do some writing activities on the disks.
>
>
> Is it just me? I don't use any 3rd party repositorys and it blows my
> mind that no one else seems to notice...!
I have the following VM I am currently using to build software on:

Linux sclbuild 2.6.32-431.5.1.el6.x86_64 #1 SMP Wed Feb 12 00:41:43 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux

It has this as the main filesystem:

/dev/mapper/vg_sclbuild-lv_root on / type ext4 (rw)

I am not having any issues with this Xen DomU VM, running on a
Xen4CentOS6 Dom0.

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On 02/15/2014 06:33 PM, Max Grobecker wrote:
> Is it just me? I don't use any 3rd party repositorys and it blows my
> mind that no one else seems to notice...!
Just you.

2.6.32-431.5.1.el works here without any issues on phys. and virtual
plattforms.

regrads
Ulf
>