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    SubjectRe: Memory leak in 2.6.11-rc1?
    On Tue, Jan 25, 2005 at 07:32:07PM +0000, Russell King wrote:
    > On Mon, Jan 24, 2005 at 11:48:53AM +0000, Russell King wrote:
    > > On Sun, Jan 23, 2005 at 08:03:15PM +0000, Russell King wrote:
    > > > I think I may be seeing something odd here, maybe a possible memory leak.
    > > > The only problem I have is wondering whether I'm actually comparing like
    > > > with like. Maybe some networking people can provide a hint?
    > > >
    > > > Below is gathered from 2.6.11-rc1.
    > > >
    > > > bash-2.05a# cat /proc/net/rt_cache | wc -l; grep ip_dst /proc/slabinfo
    > > > 24
    > > > ip_dst_cache 669 885 256 15 1
    > > >
    > > > I'm fairly positive when I rebooted the machine a couple of days ago,
    > > > ip_dst_cache was significantly smaller for the same number of lines in
    > > > /proc/net/rt_cache.
    > >
    > > FYI, today it looks like this:
    > >
    > > bash-2.05a# cat /proc/net/rt_cache | wc -l; grep ip_dst /proc/slabinfo
    > > 26
    > > ip_dst_cache 820 1065 256 15 1
    > >
    > > So the dst cache seems to have grown by 151 in 16 hours... I'll continue
    > > monitoring and providing updates.
    >
    > Tonights update:
    > 50
    > ip_dst_cache 1024 1245 256 15 1
    >
    > As you can see, the dst cache is consistently growing by about 200
    > entries per day. Given this, I predict that the box will fall over
    > due to "dst cache overflow" in roughly 35 days.

    This mornings magic numbers are:

    3
    ip_dst_cache 1292 1485 256 15 1

    Is no one interested in the fact that the DST cache is leaking and
    eventually takes out machines? I've had virtually zero interest in
    this problem so far.

    --
    Russell King
    Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
    maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/
    2.6 Serial core
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