[Samba] Possible Samba Memory Leak

Stephen Borrill samba at precedence.co.uk
Wed Oct 26 09:41:30 GMT 2005

On Mon, 4 Jul 2005, Jeremy Allison wrote:
> On Wed, Jun 29, 2005 at 08:19:18AM -0400, Anthony Russello wrote:
>> Hi Jeremy,
>> The same issue occurs when running samba 3.0.14a fresh
>> from samba.org.
> As you're doing this on an embedded system as I recall you
> might want to cut down on the stat cache (which can grow
> unlimited on normal systems). To turn it off set :
> stat cache = False
> To limit the size set :
> max stat cache size = XX
> (where XX is in 1k units).

We have a similar problem at one site using a Fox Pro database. The sizes 
of the smbd processes continually increases until the server runs out of 
swap (3.0.14). We've mitigated this a little by getting them to all log 
off overnight and also restarting samba at 8am, but by mid-afternoon the 
problem usually re-occurs. The processes get up to 200MB or so if left 
unchecked. We've been running with "stat cache = no" for a while which has 
made no difference. The DBF files being used by the database (it uses some 
nasty file locking to spoof up a multi-user db) are up to around 90MB in 

I cannot be certain, but I believe this problem has only recently started 
happening (perhaps with an upgrade from 3.0.10 to 3.0.14?).

Is there anything I can tweak?


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