Difference between revisions of "Download/kernel/rhel6/042stab055.10/changes"
< Download | kernel | rhel6 | 042stab055.10
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* [ploop] possible deadlock detected by lockdep fixed (PSBM-12210) | * [ploop] possible deadlock detected by lockdep fixed (PSBM-12210) | ||
* [block] support for in-kernel direct aio added. (patch-set backports a few Zach Brown's patches from Chris Mason) (PCLIN-30658) | * [block] support for in-kernel direct aio added. (patch-set backports a few Zach Brown's patches from Chris Mason) (PCLIN-30658) | ||
| − | * [idle] add boot param | + | * [idle] add boot param <code>intel_auto_demotion=force</code> to forcibly enable intel auto demotion. For debug (PSBM-11477) |
* [proc] kernel panic in /proc dentry put fixed (PSBM-12306) | * [proc] kernel panic in /proc dentry put fixed (PSBM-12306) | ||
* [ploop] add discard support | * [ploop] add discard support | ||
* [bridge] tcpdump shows incoming traffic in bridged veth CT (PCLIN-30814) | * [bridge] tcpdump shows incoming traffic in bridged veth CT (PCLIN-30814) | ||
* [block] order of nested locking fixed in partition resize ioctl | * [block] order of nested locking fixed in partition resize ioctl | ||
| − | * [ext4/ploop] preserve balloon_ino option on remount. Otherwise this option is dropped when some distrib scripts (unaware of ploop/balloon) remount root inside a CT. Use "balloon_ino=0" mount option if you need to really drop balloon. ({{B|2225}}, PSBM-12337) | + | * [ext4/ploop] preserve <code>balloon_ino</code> option on remount. Otherwise this option is dropped when some distrib scripts (unaware of ploop/balloon) remount root inside a CT. Use "<code>balloon_ino=0</code>" mount option if you need to really drop balloon. ({{B|2225}}, PSBM-12337) |
* [cpt] bypass limits on inotify files creation during CT checkpoint (PSBM-12475) | * [cpt] bypass limits on inotify files creation during CT checkpoint (PSBM-12475) | ||
* [ploop] possible deadlock fixed | * [ploop] possible deadlock fixed | ||
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* [ubc] livelock in bdev cache allocation fixed (PSBM-12523) | * [ubc] livelock in bdev cache allocation fixed (PSBM-12523) | ||
* [cpt] a CT with tun device inside could not be migrated twice (PSBM-12502) | * [cpt] a CT with tun device inside could not be migrated twice (PSBM-12502) | ||
| − | * [ploop] ENOSPC threshold defaults set: 2Gb for root, 4Gb for users. These thresholds can be changed via ploop.ko parameters | + | * [ploop] <code>ENOSPC</code> threshold defaults set: 2Gb for root, 4Gb for users. These thresholds can be changed via <code>ploop.ko</code> parameters |
* [ploop] debug messages on error paths added | * [ploop] debug messages on error paths added | ||
| − | * [ubc] UB ram limit check skipped for __GFP_NOFAIL allocations. This prevents possible deadlocks (PSBM-12523) | + | * [ubc] UB ram limit check skipped for <code>__GFP_NOFAIL</code> allocations. This prevents possible deadlocks (PSBM-12523) |
* [ploop] max disk-space preallocation limited to 128MB independently on ploop cluster-block size. This reduces initial size of ploop image (PSBM-12546) | * [ploop] max disk-space preallocation limited to 128MB independently on ploop cluster-block size. This reduces initial size of ploop image (PSBM-12546) | ||
* [megaraid_sas] mask off flags in the ioctl path to prevent memory scribble with older MegaCLI versions ({{B|2240}}) | * [megaraid_sas] mask off flags in the ioctl path to prevent memory scribble with older MegaCLI versions ({{B|2240}}) | ||
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* [cgroups] kernel panic in devcgroup_seq_read() has been fixed (PSBM-12254) | * [cgroups] kernel panic in devcgroup_seq_read() has been fixed (PSBM-12254) | ||
* [cpt] task credentials fix | * [cpt] task credentials fix | ||
| − | * [sheduler stat] /proc/uptime should now show correct idle time inside CT (PCLIN-30774) | + | * [sheduler stat] <code>/proc/uptime</code> should now show correct idle time inside CT (PCLIN-30774) |
| − | * [fs] fix occasional NULL pointer dereference in show_vfsmnt() -> prepare_mnt_root_mangle() (PCLIN-30843, {{B|2188#c62}}) | + | * [fs] fix occasional NULL pointer dereference in <code>show_vfsmnt()</code> -> <code>prepare_mnt_root_mangle()</code> (PCLIN-30843, {{B|2188#c62}}) |
| − | * [fs] fdatasync() optimization and statistics (/sys/fs/ext4/$dev{inflight_requests,optimized_flushes}) (PSBM-12094) | + | * [fs] <code>fdatasync()</code> optimization and statistics (<code>/sys/fs/ext4/$dev{inflight_requests,optimized_flushes}</code>) (PSBM-12094) |
* [cpt] fix locking for netfilter conntrack expectations (PSBM-12691) | * [cpt] fix locking for netfilter conntrack expectations (PSBM-12691) | ||
* [cpt] do not try to restore CT which can't be undumped (PSBM-12693, possibly {{B|2244}}) | * [cpt] do not try to restore CT which can't be undumped (PSBM-12693, possibly {{B|2244}}) | ||
| − | * [ploop] initial (incomplete) implementation of io_kaio - ploop io module based on in-kernel direct aio (PCLIN-30658) | + | * [ploop] initial (incomplete) implementation of <code>io_kaio</code> - ploop io module based on in-kernel direct aio (PCLIN-30658) |
* [ploop] optimization to more effectively merge requests by converting bio reqs to ploop reqs earlier | * [ploop] optimization to more effectively merge requests by converting bio reqs to ploop reqs earlier | ||
* fix sysinfo in containers: don't clean uptime, procs and loads ({{B|2051}}) | * fix sysinfo in containers: don't clean uptime, procs and loads ({{B|2051}}) | ||
| − | * | + | * [cpufreq] fix memory leak in <code>cpufreq_add_dev</code> |
| − | * | + | * [ext4] check for zero length extent to prevent <code>BUG_ON</code> (bz.k.org #42859, PSBM-12241) |
| − | * [nfs] lockd: change ve in locks reclaimer thread (PSBM-12799) | + | * [nfs] <code>lockd</code>: change ve in locks reclaimer thread (PSBM-12799) |
* [ext4] Fix race leading to endless wait in <code>ext4_ioend_wait()</code> (PSBM-12831, PCLIN-30867, {{B|2258}}) | * [ext4] Fix race leading to endless wait in <code>ext4_ioend_wait()</code> (PSBM-12831, PCLIN-30867, {{B|2258}}) | ||
* [ext4] Add fsync optimization statistics (PCLIN-30870) | * [ext4] Add fsync optimization statistics (PCLIN-30870) | ||
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* [cpt] online migration with tmpfs inside from kernels older than 54.1 failures fixed (PCLIN-30881) | * [cpt] online migration with tmpfs inside from kernels older than 54.1 failures fixed (PCLIN-30881) | ||
* [fs] sync has been made per-container (was global) (PCLIN-30842) | * [fs] sync has been made per-container (was global) (PCLIN-30842) | ||
| − | * [vzquota] soft lockups on inode_lock have been fixed (PCLIN-30858, {{B|2255}}) | + | * [vzquota] soft lockups on <code>inode_lock</code> have been fixed (PCLIN-30858, {{B|2255}}) |
=== See also === | === See also === | ||
* {{RHSA|2012-0481}} | * {{RHSA|2012-0481}} | ||
Latest revision as of 14:25, 14 May 2012
Changes[edit]
Since 042stab053.5:
- Rebased on 2.6.32-220.13.1.el6 RHEL6.2 kernel (security, bug fixes, and enhancements, see below)
- [procfs] make reading /proc/mounts consistent. Now we should get much less timeouts on CT stops (PSBM-12119)
- [ext4] online resize has been significantly enhanced (PSBM-12197)
- [timer] kmemsize leaks for 5457 has been fixed (PSBM-11885)
- [oom] now OOM can effectively struggle against fork bombs (PSBM-11920)
- 5 possible memory leaks were fixed in various places, found internally
- [bridge] kernel panic in bridge code in case NAT rules are configured improperly (PSBM-11782)
- [cpt] kernel panic in case a dead task gets into cpt image (PCLIN-30811)
- [cpt] we do align the size of cpt image. Online migration could fail due to tar which exits before reading the align tail. (PCLIN-30804)
- [fuse] FUSE improvements (write-back cache, AIO support, all off by default)
- [ploop] possible deadlock detected by lockdep fixed (PSBM-12210)
- [block] support for in-kernel direct aio added. (patch-set backports a few Zach Brown's patches from Chris Mason) (PCLIN-30658)
- [idle] add boot param
intel_auto_demotion=forceto forcibly enable intel auto demotion. For debug (PSBM-11477) - [proc] kernel panic in /proc dentry put fixed (PSBM-12306)
- [ploop] add discard support
- [bridge] tcpdump shows incoming traffic in bridged veth CT (PCLIN-30814)
- [block] order of nested locking fixed in partition resize ioctl
- [ext4/ploop] preserve
balloon_inooption on remount. Otherwise this option is dropped when some distrib scripts (unaware of ploop/balloon) remount root inside a CT. Use "balloon_ino=0" mount option if you need to really drop balloon. (#2225, PSBM-12337) - [cpt] bypass limits on inotify files creation during CT checkpoint (PSBM-12475)
- [ploop] possible deadlock fixed
- [ploop] fixes for in-kernel grow of expanded images (#2226)
- [ploop] out-of-space error message has ben made more descriptive
- [raid] avoid deadlock on RAID1/RAID10 during resync recover
- [ubc] livelock in bdev cache allocation fixed (PSBM-12523)
- [cpt] a CT with tun device inside could not be migrated twice (PSBM-12502)
- [ploop]
ENOSPCthreshold defaults set: 2Gb for root, 4Gb for users. These thresholds can be changed viaploop.koparameters - [ploop] debug messages on error paths added
- [ubc] UB ram limit check skipped for
__GFP_NOFAILallocations. This prevents possible deadlocks (PSBM-12523) - [ploop] max disk-space preallocation limited to 128MB independently on ploop cluster-block size. This reduces initial size of ploop image (PSBM-12546)
- [megaraid_sas] mask off flags in the ioctl path to prevent memory scribble with older MegaCLI versions (#2240)
- [atl1] kernel panic fixed in case of DMA errors
- [scheduler] warning added if huge IPI latency is detected (debug for PSBM-11683)
- [timer] kernel panic in timer interrupt in kexec on nodes with buggy BIOS fixed (PSBM-12579)
- [memory reclaimer] possibility to use sync writeback, make nodes much more responsive on high memory pressure (PSBM-11683, #2188)
- [oom] OOM priorities configuration has been reworked completely (PSBM-12263)
- [cgroups] kernel panic in devcgroup_seq_read() has been fixed (PSBM-12254)
- [cpt] task credentials fix
- [sheduler stat]
/proc/uptimeshould now show correct idle time inside CT (PCLIN-30774) - [fs] fix occasional NULL pointer dereference in
show_vfsmnt()->prepare_mnt_root_mangle()(PCLIN-30843, #2188#c62) - [fs]
fdatasync()optimization and statistics (/sys/fs/ext4/$dev{inflight_requests,optimized_flushes}) (PSBM-12094) - [cpt] fix locking for netfilter conntrack expectations (PSBM-12691)
- [cpt] do not try to restore CT which can't be undumped (PSBM-12693, possibly #2244)
- [ploop] initial (incomplete) implementation of
io_kaio- ploop io module based on in-kernel direct aio (PCLIN-30658) - [ploop] optimization to more effectively merge requests by converting bio reqs to ploop reqs earlier
- fix sysinfo in containers: don't clean uptime, procs and loads (#2051)
- [cpufreq] fix memory leak in
cpufreq_add_dev - [ext4] check for zero length extent to prevent
BUG_ON(bz.k.org #42859, PSBM-12241) - [nfs]
lockd: change ve in locks reclaimer thread (PSBM-12799) - [ext4] Fix race leading to endless wait in
ext4_ioend_wait()(PSBM-12831, PCLIN-30867, #2258) - [ext4] Add fsync optimization statistics (PCLIN-30870)
- [nfs] kernel panic on a CT stop with NFS client inside fixed (PCLIN-30874)
- [cpt] online migration with tmpfs inside from kernels older than 54.1 failures fixed (PCLIN-30881)
- [fs] sync has been made per-container (was global) (PCLIN-30842)
- [vzquota] soft lockups on
inode_lockhave been fixed (PCLIN-30858, #2255)
