On Sun, 2008-08-17 at 18:28 +0530, Anand Avati wrote: > Krzysztof, > is this server side kernel 2.6.x or 2.4.x ? Permitted offsets > boundaries for direct-IO are different for 2.4.x and 2.6.x. It's 2.6.18-6-xen-amd64 - can it be because of xen support? I will take a shot with generic kernel. Anyone has other ideas? regards Notch