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    SubjectRe: ext4 memory leak?
    On Tue, Dec 07, 2010 at 11:21:20PM +0800, Wu Fengguang wrote:
    > On Tue, Dec 07, 2010 at 10:33:51PM +0800, Wu Fengguang wrote:
    > > > In a simple dd test on a 8p system with "mem=256M", I find the light
    > >
    > > When increasing to 10 concurrent dd tasks, I managed to crash ext4..
    > > (2 concurrent dd's are OK, with very good write performance.)

    What was the dd command line? Specifically, how big were the file
    writes? I haven't been able to replicate a leak. I'll try on a small
    system seeing if I can replicate an OOM kill, but I'm not seeing a
    leak. (i.e., after the dd if=/dev/zero of=/test/$i" jobs) are
    finished, the memory utilization looks normal and I don't see any
    obvious slab leaks.

    - Ted


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