Messages in this thread | | | Date | Fri, 12 Dec 2008 19:38:10 +0100 | From | Lukas Hejtmanek <> | Subject | 2.6.28-rc8 big regression in VM |
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Hello,
I noticed that in the current git head, the VM subsystem contains a serious bug - cached memory is newer freed:
# free; echo 3 > /proc/sys/vm/drop_caches; free total used free shared buffers cached Mem: 2016688 669172 1347516 0 2160 335120 -/+ buffers/cache: 331892 1684796 Swap: 1542232 0 1542232 total used free shared buffers cached Mem: 2016688 659336 1357352 0 320 327288 -/+ buffers/cache: 331728 1684960 Swap: 1542232 0 1542232
the above sequence has been done on completly idle system so there is no reason for non freeing the cache.
once the whole memory is eaten by the cache, the system is pretty unusable.
-- Lukáš Hejtmánek -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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