Guillaume Chazarain a écrit :
> I get this kind of corruption: 
> http://guichaz.free.fr/linux-bug/corruption.png

Actually in qemu, I get three different behaviours:
- no corruption at all : with linux-2.4
- corruption only on the first chunks: before  [PATCH] mm: balance dirty 
pages as identified by Kenneth
- corruption of all chunks: after the balance dirty pages patch

Bisecting in linux-2.5 land I found 
http://kernel.org/pub/linux/kernel/people/akpm/patches/2.5/2.5.66/2.5.66-mm3/broken-out/fadvise-flush-data.patch 
to cause the corruption for me.

The attached patch fixes the corruption for me.

-- 
Guillaume