[Announce] Kernel RHEL6 042stab062.2 (moved to stable)
Kir Kolyshkin
kir at openvz.org
Fri Oct 12 11:04:09 EDT 2012
OpenVZ project has released a new RHEL6 based kernel.
Read below for more information. Everyone using this
kernel branch is advised to upgrade.
Changes
=======
Since 042stab061.1:
* Rebase to 2.6.32-279.9.1.el6 RHEL6.3 kernel (security and bug fixes)
* [processes] when CT's init is dying, check if a process is a zombie
with the parent outside of this CT and is not collected, kill it. This
unblocks CT stop in case there was a vzctl enter + Ctrl-z. (PCLIN-31083)
* [mm] balance between file/anon pressure has been fixed. This prevents
the situation when file lru gets much more pressure than anon memory and
reclaimer never touches anon pages. (PSBM-14619)
* [sysrq] Alt+SysRQ+m has been enhanced to show reclaimer statistics.
* [NFS/lockd/debug] generate a kernel BUG() in case we've got 2 or more
identical lock IDs (pids). This is a debug patch for PCLIN-31177.
* [shmem] a function to install a page into a specific location in a
shmem area has been added. This is required for VMs suspend/restore into
pram. (PSBM-14664)
* [ploop] a race in ploop locking has been fixed. (PSBM-14751)
* [gcc] kernel should now be compilable by gcc 4.7 (#2339)
* [mm] add a separate bio pool that guarantees swapout progress during
reclaiming memory. This is an optimization (not a fix) related to PSBM-14619
* [block] optimized ->writepages() method for block devices has been
implemented.
* [cpt] missed "\n", other cleanups (PCLIN-31096)
* [e1000e] VLAN set up over veth inside a CT (veths are bridged on HN)
configuration works now (PCLIN-31132)
* [net] netdevice leaks have been fixed (PSBM-14858)
* several kernel panics on modules load/unload have been fixed in
configfs, configfs example, vga16fb and AB3100 regulator
* [net] kernel panic triggered by NFS server timeouts has been fixed
(PCLIN-31212)
* [venet] kernel panic when using OpenVPN (tun dev) + iptables inside a
CT has been fixed (#2322)
* [net] CPU soft lockup caused by calling inet_twsk_deschedule() with bh
enabled has been fixed (#2346)
* [nfs] a kernel panic in case a NFS file is opened outside the CT and
CT is stopped (PSBM-15039)
* [ext4] move_extent ioctl has been disabled cause currently it may be
used to crash the node (PCLIN-31215)
* [ploop] proper balloon file open mode should be used in order to avoid
kernel warning (PSBM-14587)
* [ploop] print a verbose message in case of failed ploop unmount (debug
for PSBM-14931)
* [net namespaces] kernel BUG at mm/slab.c:511 has been fixed (broken in
2.6.32-042stab060.3) (PSBM-15004)
* [ip tunnels] several kernel panics on
ipip/sit/ppp_generic/pppoe/pppol2tp modules load/unload fixed
* [mISDN,cpufreq] a couple of panics has been fixed caught on
load/unload mISDN and cpufreq modules
* [cpt] in case a process inside a CT opened a proc file of a task and
that task died, the online migration failed (#2315)
* [cpt] support for mm->saved_auxv online migration has been added,
needed in particular for debug processes using gdb after online
migration (PSBM-13556)
* [cpt] tmpfs in nested vfsmount namespaces cpt/rst support has been
added. Issue is known to be triggered by a CRIU test only for now
(PSBM-14560)
* [fuse] iotest reported data corruption over fuse with cache has been
fixed (PSBM-15008)
* [fuse] off by one bug in fuse_wait_on_writeback() has been fixed. This
issue does not lead to any serious problem.
* [fuse] writing data beyond EOF by direct_IO case has been also
optimized. (PSBM-14353)
* [fuse] fs.fuse-ve-odirect sysctl has been added for the internal use
(PSBM-15057)
* [NFSd] a debug patch for further investigations in (PSBM-13851)
* [NFSdv4] NFS servers v4 exclusive locks handling fixed (#2122)
* [cpt] a BUG at fs/lockd/clntproc.c:596 happen on cpt/rst has been
fixed (PSBM-15075)
* [cpt] a warning about “flags mismatch” (O_LARGEFILE was not honored)
has been fixed (mentioned in PSBM-14966)
* [ploop] an additional check for block-device size provided by
userspace has been added (mentioned in PSBM-15189)
* [block] parted hang on attempt to format a USB-flash (PSBM-15179)
Download
========
http://wiki.openvz.org/Download/kernel/rhel6/042stab062.2
Bug reporting
=============
Use http://bugzilla.openvz.org/ to report any bugs found.
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Best regards,
OpenVZ team
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