From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC8A4C433E0 for ; Tue, 11 Aug 2020 16:33:46 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 971D520781 for ; Tue, 11 Aug 2020 16:33:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="0rOVXCqj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 971D520781 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ttCZoeLayujlk986amYO/havtjro+BV3ShFKdixSsBY=; b=0rOVXCqjeNEBCC9G6wsknb4rA WXz6FmooelxhtvDxd1t1bfmPt1ucvErRrYi2pJ+q69Hdou3En4uRkAtcdHmmjU04fLIVfBMQ6eA5u 4tByInYAeLuq04J3TlsQO5ZvE1qixWvWE+ZhAS5sLc4fLWAK1S1c6rEOTG5RpDQatTp9sMmklfFwt UC9vl3EzEBK3RT5DxUJa3dW4Jw2yt4GWlAqIgSIXrxkLtnoIsKkCFm0oUOOw8XY8Ca/lLZ/GshILW oZ3je/JQBiuJBYagR3Z4lsXqQU80M93ucvBF9eyWSxwsLqmPhmYdq4EQelHzE+0db65IVqqahRbIS IuvCrodPw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k5XCQ-0006MH-Gm; Tue, 11 Aug 2020 16:32:30 +0000 Received: from lhrrgout.huawei.com ([185.176.76.210] helo=huawei.com) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k5XCN-0006Kk-RT for linux-arm-kernel@lists.infradead.org; Tue, 11 Aug 2020 16:32:28 +0000 Received: from lhreml710-chm.china.huawei.com (unknown [172.18.7.107]) by Forcepoint Email with ESMTP id 32B4919F89EF9A6C1C68; Tue, 11 Aug 2020 17:32:19 +0100 (IST) Received: from localhost (10.227.96.57) by lhreml710-chm.china.huawei.com (10.201.108.61) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1913.5; Tue, 11 Aug 2020 17:32:18 +0100 Date: Tue, 11 Aug 2020 17:32:17 +0100 From: Jonathan Cameron To: Nicholas Piggin Subject: Re: [PATCH v3 0/8] huge vmalloc mappings Message-ID: <20200811173217.0000161e@huawei.com> In-Reply-To: <20200810022732.1150009-1-npiggin@gmail.com> References: <20200810022732.1150009-1-npiggin@gmail.com> Organization: Huawei tech. R&D (UK) Ltd. X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; i686-w64-mingw32) MIME-Version: 1.0 X-Originating-IP: [10.227.96.57] X-ClientProxiedBy: lhreml728-chm.china.huawei.com (10.201.108.79) To lhreml710-chm.china.huawei.com (10.201.108.61) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200811_123227_995825_8A26E1A1 X-CRM114-Status: GOOD ( 18.29 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, Zefan Li , "H. Peter Anvin" , Will Deacon , x86@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Ingo Molnar , Borislav Petkov , Catalin Marinas , Thomas Gleixner , linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 10 Aug 2020 12:27:24 +1000 Nicholas Piggin wrote: > Not tested on x86 or arm64, would appreciate a quick test there so I can > ask Andrew to put it in -mm. Other option is I can disable huge vmallocs > for them for the time being. Hi Nicholas, For arm64 testing with a Kunpeng920. I ran a quick sanity test with this series on top of mainline (yes mid merge window so who knows what state is...). Could I be missing some dependency? Without them it boots, with them it doesn't. Any immediate guesses? [ 0.069507] Dentry cache hash table entries: 33554432 (order: 16, 268435456 bytes, vmalloc) [ 0.087134] Inode-cache hash table entries: 16777216 (order: 15, 134217728 bytes, vmalloc) [ 0.097044] Mount-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 0.106534] Mountpoint-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 0.116349] ------------[ cut here ]------------ [ 0.121465] kernel BUG at kernel/fork.c:402! [ 0.126194] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [ 0.132273] Modules linked in: [ 0.135653] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-12307-g2b197e00c338 #637 [ 0.144240] pstate: 20000009 (nzCv daif -PAN -UAO BTYPE=--) [ 0.150420] pc : copy_process+0x10c0/0x1690 [ 0.155049] lr : copy_process+0x2e0/0x1690 [ 0.159584] sp : ffffd96c55773d60 [ 0.163250] x29: ffffd96c55773d70 x28: ffff20bf87060000 [ 0.169134] x27: 0000000000800300 x26: 00000000ffffffff [ 0.175018] x25: ffff8000108a8000 x24: ffffd96c55a32708 [ 0.180901] x23: ffff20bf87043800 x22: 0000000000000000 [ 0.186787] x21: 0000000000000000 x20: ffffd96c55773ef0 [ 0.192672] x19: ffffd96c55783bc0 x18: 0000000000000010 [ 0.198557] x17: 00000000855c858e x16: 00000000a8256fca [ 0.204441] x15: ffffffffffffffff x14: ffff000000000000 [ 0.210327] x13: ffff800010901000 x12: ffff8000108b1000 [ 0.216212] x11: 0000000000000001 x10: ffffd96c55a6d000 [ 0.222096] x9 : ffffd96c53bf7594 x8 : 0000000000000041 [ 0.227980] x7 : ffff004fffffa6b0 x6 : ffff800010aa8000 [ 0.233864] x5 : 000000000000fffd x4 : 0000000000000000 [ 0.239748] x3 : ffffd96c55a63598 x2 : 0000000000000001 [ 0.245632] x1 : ffffd96c55783bc0 x0 : 0000000000000008 [ 0.251519] Call trace: [ 0.254221] copy_process+0x10c0/0x1690 [ 0.258466] _do_fork+0x98/0x488 [ 0.262036] kernel_thread+0x6c/0x90 [ 0.265997] rest_init+0x38/0xf0 [ 0.269568] arch_call_rest_init+0x18/0x24 [ 0.274105] start_kernel+0x60c/0x644 [ 0.278159] Code: f000a441 f943f421 cb010000 17ffffe1 (d4210000) [ 0.284961] ---[ end trace 985361e2cb97a0d9 ]--- [ 0.290073] Kernel panic - not syncing: Attempted to kill the idle task! [ 0.297532] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]--- Thanks, Jonathan > > Since v2: > - Rebased on vmalloc cleanups, split series into simpler pieces. > - Fixed several compile errors and warnings > - Keep the page array and accounting in small page units because > struct vm_struct is an interface (this should fix x86 vmap stack debug > assert). [Thanks Zefan] > > Nicholas Piggin (8): > mm/vmalloc: fix vmalloc_to_page for huge vmap mappings > mm: apply_to_pte_range warn and fail if a large pte is encountered > mm/vmalloc: rename vmap_*_range vmap_pages_*_range > lib/ioremap: rename ioremap_*_range to vmap_*_range > mm: HUGE_VMAP arch support cleanup > mm: Move vmap_range from lib/ioremap.c to mm/vmalloc.c > mm/vmalloc: add vmap_range_noflush variant > mm/vmalloc: Hugepage vmalloc mappings > > .../admin-guide/kernel-parameters.txt | 2 + > arch/arm64/mm/mmu.c | 10 +- > arch/powerpc/mm/book3s64/radix_pgtable.c | 8 +- > arch/x86/mm/ioremap.c | 10 +- > include/linux/io.h | 9 - > include/linux/vmalloc.h | 13 + > init/main.c | 1 - > mm/ioremap.c | 231 +-------- > mm/memory.c | 60 ++- > mm/vmalloc.c | 442 +++++++++++++++--- > 10 files changed, 453 insertions(+), 333 deletions(-) > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel