Processes accessing GFS2 hanging or freezing

Solution Verified - Updated -


  • Processes accessing a GFS2 file system or file systems are "hanging" or "freezing".
  • Processes that are in this hung state show as being in "D" state in ps output.
  • On RHEL 5.5 or higher backtrace begins to appear in the messages logs indicating that processes have hung for more than 120 seconds.
  • The processes being logged are the processes attempting to access GFS2.
  • No matter how much time is allowed to pass the file system never returns to an operational state.
  • The only workaround is to reboot one or more of the nodes in the cluster
  • The hangs hapen with some regularity


  • Red Hat Enterprise Linux 5.3
  • Red Hat Enterprise Linux 5.4
  • Red Hat Enterprise Linux 5.5
  • Red Hat Enterprise Linux 5.6

  • Red Hat Global File System 2

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content