From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f72.google.com (mail-wm0-f72.google.com [74.125.82.72]) by kanga.kvack.org (Postfix) with ESMTP id E08166B0033 for ; Sat, 20 Jan 2018 00:25:30 -0500 (EST) Received: by mail-wm0-f72.google.com with SMTP id f8so454221wmi.9 for ; Fri, 19 Jan 2018 21:25:30 -0800 (PST) Received: from ZenIV.linux.org.uk (zeniv.linux.org.uk. [195.92.253.2]) by mx.google.com with ESMTPS id r66si1840258wmg.252.2018.01.19.21.25.29 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 19 Jan 2018 21:25:29 -0800 (PST) Date: Sat, 20 Jan 2018 05:24:32 +0000 From: Al Viro 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> Sender: owner-linux-mm@kvack.org List-ID: 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 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 -- 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