On Thu, 21 Jun 2007, Christoph Lameter wrote: > On Thu, 21 Jun 2007, Hugh Dickins wrote: > > > > The oops seems to occur after a page unmapping using dma_unmap_page() > > > followed > > > by a flush_dcache_page() (in at91mci_post_dma_read()). > > Was the page allocated using slab calls?
You've found yes (in the ARM case). > Well one may be better off allocating pages using the page allocator > instead of the slab allocator. I removed these things from i386 but I did > not check ARM. They may or may not be: I think that's a matter to discuss with rmk. You keep on forcing the outside world to revolve around your needs within slub.c: that is a good way to keep slub lean, and may be justified; but it's at least questionable to be enforcing such restrictions years after people have grown accustomed to more freedom from their slabs. Hugh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
