On Thu, 4 Jun 2020 19:48:14 +0300 Mike Rapoport <rppt@xxxxxxxxxx> wrote: > On Thu, Jun 04, 2020 at 09:44:46AM +0200, Joerg Roedel wrote: > > From: Joerg Roedel <jroedel@xxxxxxx> > > > > The pud_alloc_track() needs to do different checks based on whether > > __ARCH_HAS_5LEVEL_HACK is defined, like it already does in > > pud_alloc(). Otherwise it causes boot failures on PowerPC. > > > > Provide the correct implementations for both possible settings of > > __ARCH_HAS_5LEVEL_HACK to fix the boot problems. > > There is a patch in mmotm [1] that completely removes > __ARCH_HAS_5LEVEL_HACK which is a part of the series [2] that updates > p4d folding accross architectures. This should fix boot on PowerPC and > the addition of pXd_alloc_track() for __ARCH_HAS_5LEVEL_HACK wouldn't be > necessary. > > > [1] https://github.com/hnaz/linux-mm/commit/cfae68792af3731ac902ea6ba5ed8df5a0f6bd2f > [2] https://lore.kernel.org/kvmarm/20200414153455.21744-1-rppt@xxxxxxxxxx/ That patchset is stacked up behind many other patches, including all the powerpc stuff in linux-next :( As it's a big bug fix, I'll pull those patches forward, hopefully send it all Linuswards later today...
