[Announce] Kernel RHEL6 testing 042stab079.4

Kir Kolyshkin kir at openvz.org
Wed Jul 24 19:57:35 EDT 2013


OpenVZ project released an updated RHEL6 based testing kernel. Read 
below for more information.

NOTE that this is a *testing* kernel, not yet recommended for production.


Changes
=======
This is a more conservative version of 042stab080.x kernel, with many 
significant reworks removed.

Since 042stab078.28:
* Rebase to 2.6.32-358.14.1.el6 RedHat kernel (security and bug fixes, 
see link below)
* [security/ploop] memory info leak fixed (PSBM-20690)
* [security/quota] memory info leak fixed (PSBM-20690)
* [ftrace] fix ftrace_event_call alignment for use with gcc 4.5 (#2012)
* [x86] ARAT feature bit to be set on AMD CPUs: performance boost on AMD 
Opteron 62xx-based systems
* [nfsd] return ext4 file system superblock time granularity on FSINFO 
request => performance boost because inodes are not revalidated most of 
time (PCLIN-31863)
* [netfilter/ctnetlink]: fix creation of conntrack with helpers 
(PCLIN-31920)
* [ubc/net] tcpsndbuf race between poll and send cause caused counters 
skew and taints kernel on bc release attempt (PCLIN-31931)
* [cgroups] allow to restrict CT permissions for devices inside a CT 
(PSBM-19097)
* [vedev] if devices is removed from CT, it's sysfs part should be 
removed too (PSBM-19097)
* [sunrpc] kernel BUG on "root" proc entry creation failure (PCLIN-31856)
* [namespaces] nested pid namespaces are disabled inside Containers 
(PSBM-20670)
* [cpt] frightening "Holy Crap X" messages has been reworked/removed
* [cpt] checkpointing object types are enumerated now, so we should not 
get them mixed in the future (PCLIN-31939)
* [x86/apic] noisy zero-mask warning from 
default_send_IPI_mask_logical() has been removed cause it taints the 
kernel for nothing (PCLIN-31979)
* [cpt] the nr_uninterruptible counter screwed up if the checkpointed 
task is stopped (PSBM-21154)
* [cpt] additional debug messages has been added to the vma restoring 
error paths (debug for PSBM-20614)
* [scheduler] optimize the scheduler for the case when the hierarchy is 
flat (PSBM-20273)
* [pfcache] do not crash and do not fail mounting new filesystems if 
cache are not found (PSBM-19581)
* [sysctl] add global sysctl 'fs.ve-mount-nr' (4096 by default) to 
customize per-CT limit for mount points


Download
========
http://wiki.openvz.org/Download/kernel/rhel6-testing/042stab079.4


Bug reporting
=============
Use http://bugzilla.openvz.org/  to report any bugs found.


Other sources of info on updates
================================
See http://wiki.openvz.org/News  to view all the news (including updates)
online. There you can also find RSS/Atom feed links.


Best regards,
   OpenVZ team.


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