Difference between revisions of "Download/kernel/rhel6-testing/042stab072.2/changes"
< Download | kernel | rhel6-testing | 042stab072.2
m (Kir moved page Download/kernel/rhel6-testing/042stab071.1/changes to Download/kernel/rhel6-testing/042stab071.2/changes without leaving a redirect: it's 071.2 now) |
(it's now 072.2, added 071 to 072 changes) |
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== Changes == | == Changes == | ||
| − | + | <!-- 071.1 is a merge between 068.8 and 070.11 kernels, adding the features of 068.8 into 070.11 kernel --> | |
| − | |||
Since {{kernel link|rhel6-testing|042stab070.11}}: | Since {{kernel link|rhel6-testing|042stab070.11}}: | ||
| − | + | * Rebase to RHEL6.3 kernel 2.6.32-279.19.1.el6 (security and bug fixes, see link below) | |
<!-- 065.5 --> | <!-- 065.5 --> | ||
<!-- 065.6 --> | <!-- 065.6 --> | ||
| Line 30: | Line 29: | ||
* [mm] a panic while using huge tables has been fixed (PSBM-17315) | * [mm] a panic while using huge tables has been fixed (PSBM-17315) | ||
<!-- 071.2 --> | <!-- 071.2 --> | ||
| + | * [media/rc] a possible kernel panic on "rc-core" module unload has been fixed | ||
| + | * [fs/epoll] spurious lockdep warnings has been eliminated | ||
| + | * [mm/hugepages] hugepages are now accounted inside a CT (to kmemsize and lockedpages) (PSBM-17327) | ||
| + | * [ubc] swap failcounters should not be incremented in case of non fatal shortage | ||
| + | * [mm] a new formula has been implemented for pagecache reclaimer (PSBM-15799) | ||
| + | * [ubc] fix BUG due to sleep-in-atomic in set_gang_limits() | ||
| + | * [mm] limit the CT memory portion by its commitment. In simple words: if you have single 256mb container on 1gb machine it's portion should be 256m, not 1gb. | ||
| + | * [mm] set commitment to 0 for unlimited containers. For vmscan priorities that means that their effective memory portion is exactly equal to memory usage and give no bonuses for eliminating penalties for aged pages. | ||
| + | * [cpt] make vzreboot be able to work with new vSwap implementation (without necessity of physical swap) (PSBM-17124) | ||
| + | * [ploop] fix lockdep complains about bd_full acquiring (PSBM-13653) | ||
| + | <!-- 072.1: rebase to 2.6.32-279.19.1.el6 --> | ||
| + | |||
| + | <!-- 072.2 --> | ||
* [mm] do not force scanning top priority lru vectors, this could result into forced push anon memory to swap (PSBM-17443) | * [mm] do not force scanning top priority lru vectors, this could result into forced push anon memory to swap (PSBM-17443) | ||
* [mm] struct gang size decreased to 16Kb, this should eliminate often memory allocation failures on CT start (PSBM-17433) | * [mm] struct gang size decreased to 16Kb, this should eliminate often memory allocation failures on CT start (PSBM-17433) | ||
| Line 35: | Line 47: | ||
* [fs] CT O_DIRECT and fsync settings checks have been corrected (PSBM-17157) | * [fs] CT O_DIRECT and fsync settings checks have been corrected (PSBM-17157) | ||
* [pfcache] fix using uninitialized data on pfcache mounting | * [pfcache] fix using uninitialized data on pfcache mounting | ||
| + | |||
| + | === See also === | ||
| + | * {{RHSA|2012-1580}} | ||
Revision as of 23:14, 24 December 2012
Changes
Since 042stab070.11:
- Rebase to RHEL6.3 kernel 2.6.32-279.19.1.el6 (security and bug fixes, see link below)
- [ubc/mm] A new strict page cache isolation feature (PSBM-16955, see Page cache isolation)
- [mm] per-bc pagecache should be shrinked proportionally now (PSBM-15799)
- [mm] debug trace events has been added into shrink_zone and shrink_gang
- [dcache] introduce per-bc dcache lru lists with real time shrink. Underlying dcache can be immediately shrunk if sysctl "ubc.dcache_no_vzfs_cache" is set (PSBM-16072)
- [vSwap] virtual vSwap feature has been introduced => now vSwap does not require free physical swap on the HN (PSBM-16764)
- [pagecache] enchanted version of memory scheduler: shadow gangs, reclaimer takes timestamps into the consideration, etc. (PSBM-15796)
- [ubc/dcache] fix endless oom postponing in dcache reclaimer (PSBM-17067, PSBM-17069)
- [mm] the number of vmscan prios has been increased from 25 to 42. vmscan iterator has been fixed. (PSBM-15799)
- [cpt] kernel panic has been fixed due to DEAD task restoration attempt (PCLIN-30483, PSBM-17107)
- [mm] deadlock in kswapd near oom condition has been fixed (PSBM-17100)
- [fuse] a missed fuse_file_put() has been added
- [mm] a panic while using huge tables has been fixed (PSBM-17315)
- [media/rc] a possible kernel panic on "rc-core" module unload has been fixed
- [fs/epoll] spurious lockdep warnings has been eliminated
- [mm/hugepages] hugepages are now accounted inside a CT (to kmemsize and lockedpages) (PSBM-17327)
- [ubc] swap failcounters should not be incremented in case of non fatal shortage
- [mm] a new formula has been implemented for pagecache reclaimer (PSBM-15799)
- [ubc] fix BUG due to sleep-in-atomic in set_gang_limits()
- [mm] limit the CT memory portion by its commitment. In simple words: if you have single 256mb container on 1gb machine it's portion should be 256m, not 1gb.
- [mm] set commitment to 0 for unlimited containers. For vmscan priorities that means that their effective memory portion is exactly equal to memory usage and give no bonuses for eliminating penalties for aged pages.
- [cpt] make vzreboot be able to work with new vSwap implementation (without necessity of physical swap) (PSBM-17124)
- [ploop] fix lockdep complains about bd_full acquiring (PSBM-13653)
- [mm] do not force scanning top priority lru vectors, this could result into forced push anon memory to swap (PSBM-17443)
- [mm] struct gang size decreased to 16Kb, this should eliminate often memory allocation failures on CT start (PSBM-17433)
- [fs] lockdep locking classes for virtualized filesystem types has been fixed
- [fs] CT O_DIRECT and fsync settings checks have been corrected (PSBM-17157)
- [pfcache] fix using uninitialized data on pfcache mounting
