Download/kernel/rhel6-testing/042stab055.4/changes

Changes

Since 042stab054.5:

• rebased on 2.6.32-220.13.1.el6 RHEL6.2 kernel (security, bug fixes, and enhancements, see below)
• [fuse] our fuse O_DIRECT support implementation has been removed, Red Hat added the support
• [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 in memory reclaimer, basically this should 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/uptime should now show correct idle time inside CT (PCLIN-30774)
• [ploop/pcs] max disk-space preallocation on PCS is limited to 128MB now (independent of ploop cluster-block size)
• [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

See also

• RHSA-2012-0481