On Fri, Sep 21, 2018 at 03:04:18PM +0200, Vitaly Kuznetsov wrote: > Christoph Hellwig <hch@xxxxxx> writes: > > > On Wed, Sep 19, 2018 at 05:15:43PM +0800, Ming Lei wrote: > >> 1) does kmalloc-N slab guarantee to return N-byte aligned buffer? If > >> yes, is it a stable rule? > > > > This is the assumption in a lot of the kernel, so I think if somethings > > breaks this we are in a lot of pain. > > It seems that SLUB debug breaks this assumption. Kernel built with > > CONFIG_SLUB_DEBUG=y > CONFIG_SLUB=y > CONFIG_SLUB_DEBUG_ON=y Looks like we should fix SLUB debug then..
