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Re: lenny kernel memory leak?



On Wed, 2009-12-16 at 08:56 +0200, Mikko Rapeli wrote:
> On Tue, Dec 15, 2009 at 10:03:12PM +0000, Ben Hutchings wrote:
> > I'm not aware of such a bug, but that doesn't mean it doesn't exist.
> > Please note that the rt2500 driver is not part of the kernel package,
> > which instead provides the rt2500pci driver.  Have you tried using
> > rt2500pci instead?
> 
> Actually I'm using rt2500pci. Full module list below.
> 
> > The strongest evidence is that the 'slab' (kernel heap) size grows
> > hugely.  The 'anonpages' size shrinking shows that this is squeezing
> > user programs into swap.
> 
> Ok, slab did grow big compared to ram size. If I see this again I'll try
> compiling the kernel with additional debug options. I think at least
> CONFIG_DEBUG_SLAB would help.

Did you see any repeated error messages in the kernel log?

In particular, did you see "Failed to send RTS/CTS frame"?  A later
verison of the kernel fixes a memory leak associated with that specific
error case, and I may be able to apply that fix.

Ben.

-- 
Ben Hutchings
Hoare's Law of Large Problems:
        Inside every large problem is a small problem struggling to get out.

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