On Wed, Apr 29, 2020 at 11:49:50PM +0200, Jann Horn wrote: > dump_emit() is for kernel pointers, and VMAs describe userspace memory. > Let's be tidy here and avoid accessing userspace pointers under KERNEL_DS, > even if it probably doesn't matter much on !MMU systems - especially given > that it looks like we can just use the same get_dump_page() as on MMU if > we move it out of the CONFIG_MMU block. Looks sensible. Did you get a chance to test this with a nommu setup?