[Announce] Kernel RHEL6 testing 042stab059.4

[Kir Kolyshkin]

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

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


Changes
=======
Since 042stab57.1:
* Rebase to 2.6.32-279.1.1.el6 RHEL 6.3 kernel (security, bug fix and 
enhancement update)
* [ipv6] ipv6 proxies and arp proxies are now shown with "ip -6 neigh 
show" (PSBM-10293)
* [ubc] if a process has a KILL signal pending, it's allowed to allocate 
RAM over UBC limits. This does not hurt a lot cause this process will be 
killed very soon, on the other hand this avoids possible livelock under 
memory pressure (PCLIN-28872)
* [cpt] support for fasync on pipe migration has been added (PSBM-13564)
* [cpt] CPT_TEST_VECAPS return codes are meaningful now and can be 
handled in vzmigrate (PSBM-13676)
* [ploop] kernel panic due to use of a stale file in kaio_fsync_thread() 
has been fixed (PSBM-13739)
* unrolled RedHat's patch for CVE-2012-2136, as we are not affected
* [fuse] garbage in serial.txt file has been fixed: fi->num_openers 
should be updated in fuse_create_open() (PSBM-13820)
* [fuse] userspace fuse should not get a single request larger than 128K 
(PSBM-13725)
* [pfcache] possible sleeping in atomic has been fixed
* [ploop] correct rw flags should be used in io_kaio (PSBM-13725)
* [ploop] io context creation has been corrected. This is required for 
proper fuse IO accounting. (PSBM-13165)
* [kernel.spec] added "Provides: openvswitch-kmod" (PSBM-13791)
* [config] added "CONFIG_OVS_BRCOMPAT=m" (PSBM-13836)
* [ovs] Open vSwitch ability to work in parallel with bridges code has 
been dropped (PSBM-13836)
* [ovs] Open vSwitch bridge compatibility kernel module has been added 
(PSBM-13836)
* [ext4] possible return to userspace with mutex held has been fixed 
(PSBM-13747)
* [fuse] ploop io accounting has been corrected (related to PSBM-13165, 
PSBM-10626)
* [ploop] ploop type autodetection method has been implemented (PSBM-13785)
* [ovs] ovs-brcompat.ko has been renamed to brcompat.ko
* [benet] GRO flag has been enabled by default which fixes the network 
on cards supported by benet driver (PSBM-13817)
* [ubc] Alt+SysRQ+m shows now the amount of unused dentries and pruned 
dentries counters
* [cpt] zero page check has been fixed. In particular that led to httpd 
processes spread (PSBM-13901)
* [mm] missing "else" has been added in shrink_zones() which in 
particular fixes global OOM stucks
* [net] another kernel panic has been fixed caused by an extra kfree() 
in ipmr rules handling (PSBM-13950, PSBM-13954, PSBM-13973)
* [ext4] ext4/jbd2 freeze_fs deadlock has been fixed (PSBM-13977)
* [vdso/timer] sys_clock_gettime(CLOCK_MONOTONIC) has been made truly 
monotonic inside a CT (PSBM-13860)
* [ubc] one more deadlock in OOM handling has been fixed
* [cpt] ipv6 neighbor entries are added to the corresponding table on 
ipv6 ip address alliance even if the table has too many entries. 
Otherwise the whole restoration process fails (PSBM-12477)
* [cpt] incorrect count value of dev/zero shared mem pages has been 
fixed (PCLIN-30780)
* [ploop] /proc/vz/ploop_minor file has been introduced. The kernel 
keeps reported minor locked until user-space closes this proc file 
(PSBM-13471)
* [kernel.spec] remove "Vendor", it is provided by the build system 
(PCLIN-30752)
* [ploop] various cleanups
* [kernel.spec] debug kernels build is enabled by default
* [sysfs] sometimes network interface rename could fail (PSBM-14016)
* [fuse] fallocate support has been added to FUSE (PSBM-13971)
* [jbd] BUG at fs/jbd/commit.c:325 has been fixed (PCLIN-30972)
* [mm] memory reclaimer deadlock has been fixed by removing 
wait_on_page_writeback() on direct-reclaim path (PSBM-14021)
* [cpt] a false positive lockdep report fixed
* [cpt] inability to restore the fpu state led to a kernel panic. Kernel 
panic is fixed, now appropriate error message is printed. (PCLIN-31031, 
#2275)
* [ploop] do not limit max_hw_sectors and max_sectors by 255. Now 
max_hw_sectors = UINT_MAX, max_sectors = 1024 (PSBM-13837)
* [netconsole] netconsole over bridge is prohibited, this solves the 
node lockups (PSBM-14065)
* [cgroups] cgroups have been reworked in order to fix a deadlock and a 
crash (#2278)
* [epoll] a kernel panic fixed by locking correction
* [ploop] a new sysfs file has been added: 
/sys/block/ploopN/pstate/locked (PSBM-13471)
* [fuse] AIO requests should not be broken on parts 4KB each (part of 
PSBM-14010)
* [nfs] kernel panic on NFS volume mount in case of memory shortage 
fixed (PCLIN-31080)
* [cpt] fix SUNRPC pipefs migration

Download
========
http://wiki.openvz.org/Download/kernel/rhel6-testing/042stab059.4


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


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================================
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Best regards,
   OpenVZ team.