On Wed, Feb 29, 2012 at 05:56:21AM +0900, Tejun Heo wrote: > memblock allocator aligns @size to @align to reduce the amount of > fragmentation. 7bd0b0f0da "memblock: Reimplement memblock allocation > using reverse free area iterator" broke it by incorrectly relocating > @size aligning to memblock_find_in_range_node(). As the aligned size > is not propagated back to memblock_alloc_base_nid(), the actually > reserved size isn't aligned. > > While this increases memory use for memblock reserved array, this > shouldn't cause any critical failure; however, it seems that the size > aligning was hiding a use-beyond-allocation bug in sparc64 and losing > the aligning causes boot failure. > > The underlying problem is currently being debugged but this is a > proper fix in itself, it's already pretty late in -rc cycle for boot > failures and reverting the change for debugging isn't difficult. > Restore the size aligning moving it to memblock_alloc_base_nid(). > > Signed-off-by: Tejun Heo <tj@xxxxxxxxxx> > Reported-by: Meelis Roos <mroos@xxxxxxxx> > Reported-by: Sam Ravnborg <sam@xxxxxxxxxxxx> Actually not :-( I only fooled around with some clueless suggestions - I do not have any sparc64 boxes. And my sparc32 box that is alive atm, does not exhibit this problem. Sam -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
