Re: [Xen-devel] [PATCH] Fix invalidate if memory requested was not bucket aligned

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Ian Jackson writes ("Re: [Xen-devel] [PATCH] Fix invalidate if memory requested 
was not bucket aligned"):
> Frediano Ziglio writes ("[Xen-devel] [PATCH] Fix invalidate if memory 
> requested was not bucket aligned"):
> > When memory is mapped in qemu_map_cache with lock != 0 a reverse mapping
> > is created pointing to the virtual address of location requested.
> > The cached mapped entry is saved in last_address_vaddr with the memory
> > location of the base virtual address (without bucket offset).
> > However when this entry is invalidated the virtual address saved in the
> > reverse mapping is used. This cause that the mapping is freed but the
> > last_address_vaddr is not reset.
> > 
> > Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>
> 
> Thanks for this!
> 
> Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Committed-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> 
> I think that this is a good candidate for a backport, after it has
> been given a workout in -unstable.

Is someone up for doing the backport for 4.1 ?  It doesn't apply
cleanly or I would have just done it.

Keir, is 4.0 closed now ?  If it's not _entirely_ closed then this
bugfix is a very good candidate for inclusion in a future 4.0.5.

Ian.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel