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SubjectRe: 2.6.33.2 kmalloc-8 slab leaks ~512 objects per second
Date
On Wednesday 12 May 2010 11:21:48 Tvrtko Ursulin wrote:
> Hi all,
>
> 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.

I think it is DRM (radeon) related, leak stopped when I closed all X programs.
I am compiling 2.6.33.3 right now and will soon reboot into it.

Tvrtko

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