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    SubjectRe: dentry cache leak? Re: rsync out of memory 2.6.8-rc2
    bert hubert wrote:

    >/proc/fs/dentry-state of course, sorry
    >On Mon, Jul 19, 2004 at 01:20:47PM +0200, bert hubert wrote:
    >>On Mon, Jul 19, 2004 at 11:19:43AM +0200, Klaus Dittrich wrote:
    >>>I found out I could trigger the memory outage using du -s /disc1 too.
    >>Including crashing and/or running out of swap? That would indicate that the
    >>dentry cache is not cleaning itself up, or that something is wrong with
    >>reference counting.
    >>Can you run 'cat fs/dentry-state' before and after the du -s? (assuming
    >>there is an 'after'. Also, which fs is /disc1 on? any messages in dmesg?
    >>Status of the directory cache. Since directory entries are
    >>dynamically allocated and deallocated, this file indicates the current
    >>status. It holds six values, in which the last two are not used and are
    >>always zero. The others are listed in table 2-1.
    >>Table 2-1: Status files of the directory cache
    >> File Content
    >> nr_dentry Almost always zero
    >> nr_unused Number of unused cache entries
    >> age_limit
    >> in seconds after the entry may be reclaimed, when memory is
    >> want_pages internally
    >> Open source, database driven DNS Software
    >> Linux Advanced Routing & Traffic Control HOWTO
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    The fs is /proc/sys/fs/dentry-state
    Output of cat /proc/sys/fs/dentry-state before and after processes got
    891083 888395 45 0 0 0
    1142933 1085759 45 0 0 0
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