Article ID: 120459, created on Mar 6, 2014, last review on Mar 6, 2015

  • Applies to:
  • Virtuozzo containers for Linux

Symptoms

Container online migration fails with the following errors in /var/log/messages on the destination node (in case of running vzmigrate with '-vvv' option):

Feb 24 21:53:24 vztemp kernel: CPT ERR: ffff810eb4508000,555 :rst_file: -2 74072968
Feb 24 21:53:24 vztemp kernel: CPT ERR: ffff810eb4508000,555 :rst_files: -2
Feb 24 21:53:24 vztemp kernel: CPT ERR: ffff810eb4508000,555 :make_baby: -2
Feb 24 21:53:24 vztemp kernel: CPT ERR: ffff810eb4508000,555 :rst_clone_children
Feb 24 21:53:24 vztemp kernel: CPT ERR: ffff810eb4508000,555 :make_baby: -2
Feb 24 21:53:24 vztemp kernel: CPT ERR: ffff810eb4508000,555 :rst_clone_children
Feb 24 21:53:24 vztemp kernel: CPT ERR: ffff810eb4508000,555 :make_baby: -2
Feb 24 21:53:24 vztemp kernel: CPT ERR: ffff810eb4508000,555 :rst_clone_children
Feb 24 21:53:24 vztemp vzmdest[9004]: vzctl : Can't undump: No such file or directory
Feb 24 21:53:24 vztemp vzmdest[9004]: vzctl : Error: rst_file: -2 74072968
Feb 24 21:53:24 vztemp vzmdest[9004]: vzctl : Error: rst_files: -2
Feb 24 21:53:24 vztemp vzmdest[9004]: vzctl : Error: make_baby: -2
Feb 24 21:53:24 vztemp vzmdest[9004]: vzctl : Error: rst_clone_children
Feb 24 21:53:24 vztemp vzmdest[9004]: vzctl : Error: make_baby: -2
Feb 24 21:53:24 vztemp vzmdest[9004]: vzctl : Error: rst_clone_children
Feb 24 21:53:24 vztemp vzmdest[9004]: vzctl : Error: make_baby: -2
Feb 24 21:53:24 vztemp vzmdest[9004]: vzctl : Error: rst_clone_children
Feb 24 21:53:24 vztemp vzmdest[9004]: vzctl : Container start failed
Feb 24 21:53:24 vztemp kernel: CT: 555: stopped
Feb 24 21:53:26 vztemp vzmdest[9004]: vzctl : Container start failed
Feb 24 21:53:26 vztemp vzmdest[9004]: /usr/sbin/vzctl exited with code 17
Feb 24 21:53:29 vztemp vzmdest[9004]: /usr/sbin/vzctl exited with code 17

Cause

The issue is recognized as a product bug with internal ID PCLIN-32405. The online migration sometimes fails on restoring open handles to specific files.

Resolution

There is no stable workaround for this issue. Stopping some services (such as qmail/apache/nginx/etc...) prior to migration might help to avoid the error.

A container can be migrated in offline mode though.

Search Words

online migration

Can't undump: No such file or directory

fails

Error: make_baby: -2

Error: rst_file: -2

Error: rst_clone_children

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