On Thu, Oct 28, 2010 at 09:54:23PM +0200, Sedat Dilek wrote:
>
> Hm, unfortunately NO (see logs).
>
> I have compiled via M=fs/ext4 in an already compiled build-tree with
> these 3 patches.
Ok, stupid question. You did make sure the new ext4 module was
loaded, right?
> [ 100.884524] ------------[ cut here ]------------
> [ 100.884718] kernel BUG at /home/sd/src/linux-2.6/linux-2.6.36/debian/build/source_i386_none/fs/ext4/inode.c:2721!
OK, so after the patch, line 2721: changed from page_buffers() to:
if (!page_has_buffers(page))
page_has_buffers() expands to:
#define page_has_buffers(page) PagePrivate(page)
which expands to test_bit() call to see if PG_private1 is set in
page->flags. There is no BUG_ON anywhere there as far as I can tell.
Line 2721 in the older kernel was page_has_buffers() which does have a
BUG_ON check.
- Ted
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