From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751157AbeATFZg (ORCPT ); Sat, 20 Jan 2018 00:25:36 -0500 Received: from zeniv.linux.org.uk ([195.92.253.2]:41086 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750745AbeATFZ2 (ORCPT ); Sat, 20 Jan 2018 00:25:28 -0500 Date: Sat, 20 Jan 2018 05:24:32 +0000 From: Al Viro To: Linus Torvalds Cc: Matthew Wilcox , "Kirill A. Shutemov" , Peter Zijlstra , Andrea Arcangeli , Dave Hansen , Tetsuo Handa , "Kirill A. Shutemov" , Andrew Morton , Johannes Weiner , Joonsoo Kim , Mel Gorman , Tony Luck , Vlastimil Babka , Michal Hocko , "hillf.zj" , Hugh Dickins , Oleg Nesterov , Rik van Riel , Srikar Dronamraju , Vladimir Davydov , Ingo Molnar , Linux Kernel Mailing List , linux-mm , the arch/x86 maintainers Subject: Re: [mm 4.15-rc8] Random oopses under memory pressure. Message-ID: <20180120052432.GN13338@ZenIV.linux.org.uk> References: <20180118145830.GA6406@redhat.com> <20180118165629.kpdkezarsf4qymnw@node.shutemov.name> <20180118234955.nlo55rw2qsfnavfm@node.shutemov.name> <20180119125503.GA2897@bombadil.infradead.org> <20180119221243.GL13338@ZenIV.linux.org.uk> <20180120020237.GM13338@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180120020237.GM13338@ZenIV.linux.org.uk> User-Agent: Mutt/1.9.1 (2017-09-22) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 20, 2018 at 02:02:37AM +0000, Al Viro wrote: > Note that those sizes are rather sensitive to lockdep, spinlock debugging, etc. That they certainly are: on one of the testing .config I'm using it gave this: 1104 sizeof struct page = 56 81 sizeof struct cpufreq_frequency_table = 12 32 sizeof struct Indirect = 24 7 sizeof struct zone = 1400 7 sizeof struct hstate = 152 6 sizeof struct lock_class = 336 6 sizeof struct hpet_dev = 152 6 sizeof struct ext4_extent = 12 4 sizeof struct ext4_extent_idx = 12 3 sizeof struct mbox_chan = 456 2 sizeof struct strip_zone = 24 2 sizeof struct kobj_attribute = 48 2 sizeof struct kernel_param = 40 2 sizeof struct exception_table_entry = 12 1 sizeof struct vif_device = 104 1 sizeof struct unixware_slice = 12 1 sizeof struct svc_pool = 152 1 sizeof struct srcu_node = 152 1 sizeof struct r5worker_group = 56 1 sizeof struct pebs_record_core = 144 1 sizeof struct netdev_queue = 384 1 sizeof struct mirror = 40 1 sizeof struct mif_device = 56 1 sizeof struct e1000_tx_ring = 48 1 sizeof struct dx_frame = 24 1 sizeof struct bts_record = 24 1 sizeof struct ata_device = 2560 1 sizeof struct acpi_processor_cx = 52