http://bugzilla.kernel.org/show_bug.cgi?id=10572





------- Comment #26 from [EMAIL PROTECTED]  2008-05-28 18:42 -------
(In reply to comment #5)
> With netconsole got this output, while compiling a kernel:
> 
> Eeek! page_mapcount(page) went negative! (-1)
>   page pfn = 11fcd0
>   page->flags = 11c00000001002c
>   page->count = 1
>   page->mapping = ffff810123897b28
>   vma->vm_ops = xfs_file_vm_ops+0x0/0xfffffffffffe69ef [xfs]
>   vma->vm_ops->nopage = 0x0
>   vma->vm_ops->fault = filemap_fault+0x0/0x4d0
> 

It looks like a memory leak.
Would you please have a try kmemcheck?

1. pull kmemcheck from
   git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck.git current
2. apply the patch at:
   http://bugzilla.kernel.org/attachment.cgi?id=16199&action=view
3. make & reboot, check dmesg to find any thing reported by kmemcheck


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