Re: out of memory

[Andrew Morton]

Ingo Freund <Ingo.Freund@xxxxxxxxxx> wrote:
>

Please don't edit Cc:'s when working with kernel developers - just do
reply-to-all.

> Andrew Morton wrote:
> > Ingo Freund <Ingo.Freund@xxxxxxxxxx> wrote:
> >> Apr  2 10:56:11 dbm kernel: 8538 pages slab
> > 
> > and it's not in slab.
> > 
> >> Apr  2 10:56:11 dbm kernel: Symbols match kernel version 2.6.13.
> > 
> > Boy, 2.6.13 was a long time ago - I'm sure we fixed many leaks since then,
> > but I do not recall any particular patch which might fix this, sorry.
> > 
> > Your best option would be to seek a kernel upgrade.
> 
> I'll give a try to the last kernel version

OK, 2.6.16.1 would suit.

> Is there a way to get those kernel/memory information from time
> to time from the running system which I found in the syslog file?

/proc/meminfo gives a decent summary.

To watch your ZONE_NORMAL disappearing it would be better to monitor
/proc/zoneinfo.  There you'll see `free', `active', `inactive' and
`present'.  In /proc/meminfo you'll find the slab utilisation.

It should be approximately true that free+active+inactive+slab = present.
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