Getting this message attempting to boot CentOS 7

BUG: unable to handle kernel NULL pointer dereference at 000000000000009B

And then a kernel panic

Happens when trying to boot from the OS HDD or from the CentOS 7 CD in rescue mode.

Kernel Version: 3.10-123

I would like to recover this installation if I can instead of completely reinstalling/configuring this server again. Everything was working fine last night, and this morning, KA-BOOM!

I'll be happy to provide whatever information I can. unfortunately log entries are not available since I can't even get the system booted.

Update: I have tried booting into different runlevels. All result with the same kernel panic.

  • 1
    What kind of hardware are we looking at?
    – fukawi2
    Commented Dec 12, 2014 at 4:32
  • Run the memory checker (from CD if necessary)
    – Anthon
    Commented Dec 12, 2014 at 8:30
  • Boot with a previous kernel. Commented Dec 12, 2014 at 8:35
  • This happens even when booting from the CD? Do you boot directly from the CD or are you using the installed bootloader to find the CD or local iso?
    – terdon
    Commented Dec 12, 2014 at 8:47
  • This is not a real solution to your problem, just a pragmatic advice -- try booting from a different medium using a different kernel, and check for hardware problems. If there seem to be none, restore from your backup and save yourself the time tracking this down.
    – jstarek
    Commented Dec 12, 2014 at 10:58

1 Answer 1


For those of you interested. Turns out there was some kind of corruption of the LVM. My guess is due to me resizing the LVM partitions. Managed to get a Live CD of CentOS 7 booting and every time I try to mount the partition I need, I receive the Kernel Panic. So my tip to anyone. If you have resized your LVM partitions this is likely the cause for the panic.

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