RHEL6: hung_task message or machine hangs with processes blocked in md_write_start()

Solution Verified - Updated -

Issue

  • RHEL6 system hung and hung_task message at md_write_start()

Environment

  • Red Hat Enterprise Linux server 6
    • seen on kernel-2.6.32-220.13.1.el6
    • other kernels up to RHEL6.5 (kernel-2.6.32-431.el6) likely affected
  • mdraid

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