This patchset is a rewrite of the out of memory killer to address several issues that have been raised recently. The most notable change is a complete rewrite of the badness heuristic that determines which task is killed; the goal was to make it as simple and predictable as possible while still addressing issues that plague the VM. Changes from version 1: - updated to mmotm-2010-02-11-21-55 - when iterating the tasklist for mempolicy-constrained oom conditions, the node of the cpu that a MPOL_F_LOCAL task is running on is now intersected with the page allocator's nodemask to determine whether it should be a candidate for oom kill. - added: [patch 4/9] oom: remove compulsory panic_on_oom mode - /proc/pid/oom_score_adj was added to prevent ABI breakage for applications using /proc/pid/oom_adj. /proc/pid/oom_adj may still be used with the old range but it is then scaled to oom_score_adj units for a rough linear approximation. There is no loss in functionality from the old interface. - added: [patch 6/9] oom: deprecate oom_adj tunable This patchset is based on mmotm-2010-02-11-21-55 because of the following dependencies: [patch 5/9] oom: badness heuristic rewrite: mm-count-swap-usage.patch [patch 7/9] oom: replace sysctls with quick mode: sysctl-clean-up-vm-related-variable-delcarations.patch To apply to mainline, download 2.6.33-rc8 and apply mm-clean-up-mm_counter.patch mm-avoid-false-sharing-of-mm_counter.patch mm-avoid-false_sharing-of-mm_counter-checkpatch-fixes.patch mm-count-swap-usage.patch mm-count-swap-usage-checkpatch-fixes.patch mm-introduce-dump_page-and-print-symbolic-flag-names.patch sysctl-clean-up-vm-related-variable-declarations.patch sysctl-clean-up-vm-related-variable-declarations-fix.patch from http://userweb.kernel.org/~akpm/mmotm/broken-out.tar.gz first. --- Documentation/feature-removal-schedule.txt | 30 + Documentation/filesystems/proc.txt | 100 +++--- Documentation/sysctl/vm.txt | 71 +--- fs/proc/base.c | 106 ++++++ include/linux/mempolicy.h | 13 include/linux/oom.h | 24 + include/linux/sched.h | 3 kernel/fork.c | 1 kernel/sysctl.c | 15 mm/mempolicy.c | 39 ++ mm/oom_kill.c | 479 ++++++++++++++--------------- mm/page_alloc.c | 3 12 files changed, 553 insertions(+), 331 deletions(-) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>