On Fri, Apr 05, 2019 at 05:49:34AM +0000, Anup Patel wrote: > The Maximum Physical Memory 2GiB option for 64bit systems is currently > broken because kernel hangs at boot-time when this option is enabled > and the underlying system has more than 2GiB memory. > > This issue can be easily reproduced on SiFive Unleashed board where > we have 8GiB of memory. > > This patch fixes above issue by removing unusable memory region in > setup_bootmem(). > > Signed-off-by: Anup Patel <anup.pa...@wdc.com> > Reviewed-by: Christoph Hellwig <h...@lst.de>
Btw, what is the rationale behind even offering the 2GiB option and the medlow model on 64-bit? Do we reall have use cases where the slightly more effient generated code matters so much to keep up the support burden of this mostly unused and unusual configuration?
