XFS error: xlog_space_left: head behind tail

This document (7014242) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 11 Service Pack 2


The following warnings are seen in /var/log/messages, e.g.:

XFS (dm-4): xlog_space_left: head behind tail
tail cycle = 129, tail_bytes = 20163072
GH   cycle = 129, GH bytes = 20162880

XFS (dm-15): xlog_space_left: head behind tail
tail_cycle = 1, tail_bytes = 503770112
GH   cycle = 1, GH bytes = 503769720


The kernel maintenance update, kernel -3.0.101- released January 2014 includes the patch to resolve the problem.


Per patch info the "common cause appears to be lots of freeze and unfreeze cycles, and the output from the warnings indicates that we are leaking around 8 bytes of log space per freeze/unfreeze cycle."

Additional Information


This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7014242
  • Creation Date: 06-Dec-2013
  • Modified Date:12-Oct-2022
    • SUSE Linux Enterprise Server

< Back to Support Search

For questions or concerns with the SUSE Knowledgebase please contact: tidfeedback[at]suse.com

SUSE Support Forums

Get your questions answered by experienced Sys Ops or interact with other SUSE community experts.

Join Our Community

Support Resources

Learn how to get the most from the technical support you receive with your SUSE Subscription, Premium Support, Academic Program, or Partner Program.

SUSE Customer Support Quick Reference Guide SUSE Technical Support Handbook Update Advisories
Support FAQ

Open an Incident

Open an incident with SUSE Technical Support, manage your subscriptions, download patches, or manage user access.

Go to Customer Center