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Date: Wed, 12 May 2010 16:00:51 +0300 From: Pekka Enberg <penberg@...helsinki.fi> To: Tvrtko Ursulin <tvrtko.ursulin@...hos.com> Cc: linux-kernel@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>, Catalin Marinas <catalin.marinas@....com> Subject: Re: 2.6.33.2 kmalloc-8 slab leaks ~512 objects per second Hi Tvrtko, On Wed, May 12, 2010 at 1:21 PM, Tvrtko Ursulin <tvrtko.ursulin@...hos.com> wrote: > As the subject says, is this a know issue? I have been tracking the growth at > one second intervals and it looks like this: > > 512 (67716608) Slab: 606744 kB > 512 (67717120) Slab: 606752 kB > 512 (67717632) Slab: 606756 kB > 0 (67718144) Slab: 606756 kB > 512 (67718144) Slab: 606760 kB > 1024 (67718656) Slab: 606768 kB > 512 (67719680) Slab: 606772 kB > 512 (67720192) Slab: 606776 kB > 0 (67720704) Slab: 606776 kB > 512 (67720704) Slab: 606780 kB > > First fiels is the diff in numobj, in parentheses is actual numobj and last is > the total slab size from /proc/meminfo. > > kmalloc-8 68044800 68044800 8 512 1 : tunables 0 0 0 > : slabdata 132900 132900 0 > > dm-io slab also seems large, don't know... : > dm_io 75924 147288 40 102 1 : tunables 0 0 0 : > slabdata 1444 1444 0 > > Some other info about the system/kernel is attached. [snip] You might want to try out the built-in kernel memory leak detector. See Documentation/kmemleak.txt for details how to enable it and use it. Pekka -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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