Article ID: 119036, created on Dec 5, 2013, last review on May 3, 2014

  • Applies to:
  • Virtuozzo hypervisor 5.0
Synopsis: A new Parallels Server Bare Metal 5.0 kernel update addressing security, performance, and stability issues.
 
This document provides information on the new Parallels Server Bare Metal 5.0 kernel, version 2.6.32-042stab084.12.
 
CONTENTS
  1. About This Update
  2. Update Description
  3. Obtaining the New Kernel
  4. References
1. ABOUT THIS UPDATE
 
The current update for the Parallels Server Bare Metal 5.0 kernel provides a new kernel based on the Red Hat Enterprise Linux 6.4 kernel (2.6.32-358.23.2.el6). The updated kernel includes a number of performance and stability fixes.
 
2. UPDATE DESCRIPTION
 
This update includes the following fixes and improvements:
  • iotop utility didn't work inside Containers (OpenVZ #2549)
     
  • Added the ability to see in which Container the process was killed by OOM killer (PCLIN-32184)
     
  • Fixed 'WARNING: at kernel/softirq.c:161 local_bh_enable_ip+0x7d/0xb0()' (PSBM-23346, OpenVZ #2526)
     
  • A race in ploop_tracker_init() could lead to data corruption on Container's live migration (PSBM-22993)
     
  • Kernel could crash on an attempt to access specific device (PSBM-21015)
     
  • Multiple improvements and fixes regarding ploop images stability and performance. (PSBM-23452, PSBM-23302, PSBM-22506)
     
  • Other stability fixes: (PSBM-23231, PSBM-20168, PSBM-23133, PSBM-22982, PSBM-22887, PSBM-22826, PSBM-22229, PSBM-22198, PSBM-21877, PSBM-21076, PSBM-20614, PSBM-18642)
 
3. OBTAINING THE NEW KERNEL
 
You can download and install this kernel update using the vzup2date utility included in the Parallels Server Bare Metal 5.0 distribution set.
 

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