Andrew Morton wrote:
"Martin J. Bligh" <[email protected]> wrote:
Nothing beats poking around in a dead machine's guts with kgdb though.
Everyone his taste.
But I was surprised by
SwapTotal: 1052216 kB
SwapFree: 1045984 kB
Strange that processes are killed while lots of swap is available.
I don't think we're that smart about it. If we're really low on mem, it
seems we invoke the OOM killer whether processes are causing the problem
or not.
OTOH, if we can't free the kernel mem, we don't have much choice, but
it's not really helping much ;-)
I'm suspecting here that we simply leaked a refcount on every darn
pagecache page in the machine. Note how mapped memory has shrunk down to
less than a megabyte and everything which can be swapped out has been
swapped out.
That makes sense. We have almost 485MB in active and inactive caches,
but we are not able reclai them :(
Active: 243580 kB
Inactive: 242248 kB
If so, then oom-killing everything in the world is pretty inevitable.
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