On Mon, Aug 19, 2019 at 05:49:48AM +0200, hch@xxxxxx wrote: > The fake pmem was create by the following kernel command line sniplet: > "memmap=2000M!1024M,2000M!4096M" and my kernel config is attached. I > suspect you'll need CONFIG_SLUB to create the woes, but let me confirm > that.. Yep, doesn't reproduce with CONFIG_SLAB.