Memory leak

Skip Gaede sgaede at
Sat Jun 22 12:22:56 EST 2002

On Thursday 20 June 2002 03:52, Skip Gaede wrote:
> Folks,
> I'm looking for a recipe on how to track where my memory
> is disappearing to. I am running kernel
> 2.4.19-pre10-ben0, patched for the nubus-pmac platform. I
> have 40 MB RAM and a 100 MB swap file on the local hard
> disk.
OK, I recompiled the kernel with CONFIG_DEBUG_SLAB. The
memory is being consumed by the size-2048 cache, which I
believe is being used for network traffic.

I have two scenarios:

1) boot the system off the local hard drive and run X -query

2) boot the kernel+initrd off the local hard drive and mount
root via NFS, then run X -query ...

In the first case, the 2048 cache works well. After 30
minutes of continuous network traffic,

size-2048      5   50  2048    3    25  1

In the second case, after only 15 minutes

size-2048   187 228  2048  94  114  1  (15 min)
size-2048   918 928  2048 460 464  1  (60 min)

So the number of active buffers is much higher and it
continues to grow. Does anyone have any idea as to why this
is happening, or how to debug it?


** Sent via the linuxppc-dev mail list. See

More information about the Linuxppc-dev mailing list