[Announce] Kernel RHEL6 testing 042stab080.3

[Kir Kolyshkin]

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
=======
Since 042stab080.2:
* [gcc] compilation with gcc 4.5 fixed
* [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)
* [net] fix freeing RCU-protected IP-options (same fix as in 
042stab078.27; CVE-2013-2224, #2648)
* [relay] consequent execution of blktrace failure has been fixed 
(PSBM-20247)
* [net] rtnl_lock release lost on error path (same fix as in 
042stab078.28; PSBM-21008)
* [ubc/net] tcpsndbuf race between poll and send cause caused counters 
skew and taints kernel on bc release attempt (PCLIN-31931)
* [stat] replaces global counters with per-cpu structures to avoid 
kstat_glb_lock congestion => performance increases
* [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)
* [pfcache] do not crash and do not fail mounting new filesystems if 
cache are not found (PSBM-19581)
* [nfs/quota] NFS local quota (vzquota in case /vz over NFS) 
significantly reworked => no more crashes / stats skews are expected 
(PCLIN-31747)
* [ploop] kaio must merge bios for aio_kernel_submit => should avoid 
problem with massive 4k FUSE requests (PSBM-19207)
* [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/042stab080.3


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