From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kirill A. Shutemov" Subject: Re: 4.0-rc1/PARISC: BUG: non-zero nr_pmds on freeing mm Date: Wed, 25 Feb 2015 22:21:30 +0200 Message-ID: <20150225202130.GA31491@node.dhcp.inet.fi> References: <20150224225454.GA14117@fuloong-minipc.musicnaut.iki.fi> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "Kirill A. Shutemov" , linux-parisc@vger.kernel.org, linux-mm@kvack.org To: Andrew Morton , Aaro Koskinen Return-path: In-Reply-To: <20150224225454.GA14117@fuloong-minipc.musicnaut.iki.fi> List-ID: On Wed, Feb 25, 2015 at 12:54:54AM +0200, Aaro Koskinen wrote: > Hi, > > Here's a kernel config to reproduce the issue (no special steps needed, > just boot to userspace), and bootlog after that: > > # > # Automatically generated file; DO NOT EDIT. > # Linux/parisc 4.0.0-rc1 Kernel Configuration ... > [ 18.940000] BUG: non-zero nr_pmds on freeing mm: -6 It happens due missing __PAGETABLE_PMD_FOLDED in custom page table folding. This has been fixed in CONFIG_PGTABLE_LEVELS patcheset. Andrew, are you going to submit that patchset to Linus in this cycle? If not, I can prepare a patchset which only adds missing __PAGETABLE_PUD_FOLDED and __PAGETABLE_PMD_FOLDED. -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org