[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)
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Best regards,
OpenVZ team.
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