Re: [BUG] in 2.6.25-rc3 with 64k page size and SLUB_DEBUG_ON

[Jens Osterkamp <Jens.Osterkamp@gmx.de>]

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On Friday 07 March 2008, Christoph Lameter wrote:
> On Fri, 7 Mar 2008, Jens Osterkamp wrote:
> 
> > 0xc000000000056f08 is in copy_process (/home/auto/jens/kernels/linux-2.6.25-rc3/include/linux/slub_def.h:209).
> > 204                             struct kmem_cache *s = kmalloc_slab(size);
> > 205
> > 206                             if (!s)
> > 207                                     return ZERO_SIZE_PTR;
> > 208
> > 209                             return kmem_cache_alloc(s, flags);
> > 210                     }
> > 211             }
> > 212             return __kmalloc(size, flags);
> > 213     }
> > 
> > which is in the middle of kmalloc.
> 
> Its in the middle of inline code generated within the function that calls 
> kmalloc. Its not in kmalloc per se.
> 
> Can you figure out what the value of size is here? I suspect we are doing 
> a lookup here in kmalloc_caches with an invalid offset.

I added a printk in kmalloc and the size seems to be 0x4000.

Gruß,
	Jens

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