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[209.132.180.67]) by mx.google.com with ESMTP id w7-v6si4216967pgh.131.2018.11.08.08.24.28; Thu, 08 Nov 2018 08:24:44 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727197AbeKICAM (ORCPT + 99 others); Thu, 8 Nov 2018 21:00:12 -0500 Received: from mout.gmx.net ([212.227.15.19]:55893 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726627AbeKICAM (ORCPT ); Thu, 8 Nov 2018 21:00:12 -0500 Received: from [66.187.233.206] ([66.187.233.206]) by web-mail.gmx.net (3c-app-mailcom-bs15.server.lan [172.19.170.183]) (via HTTP); Thu, 8 Nov 2018 17:23:55 +0100 MIME-Version: 1.0 Message-ID: From: "Qian Cai" To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org Subject: BUG: sleeping function called from invalid context at mm/slab.h:421 Content-Type: text/plain; charset=UTF-8 Date: Thu, 8 Nov 2018 17:23:55 +0100 Importance: normal Sensitivity: Normal X-Priority: 3 X-Provags-ID: V03:K1:jxssYBMFV0Azjh67OKQ56uEVR0IxnPylx96+lH8l4uMDA6/fX4ELkQUtrExGWIkanJ8Vn PqBUjaQ0NLGmf5Ft5CAEQGEm7LOX+bQ3tg5tdF4u0yn2yTgW8/3Trj/3MhhaBZlENbpSWv6me+Am 0CGd3xrhxkEogI1LFp5zhudjloxBHiqENM/9k8XoqXmmgSVcK5lh0IHPspg2N6uVP7xbot2+/4Qn es5t2zD30WYeb/9LZtbVjPS9yRZrMjI0OKgCypiHoTXCEv0lx6XDTmvO2lnaW6h8+CJvM7rER+IL To= X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V01:K0:XPnk84UoQqE=:32qdnvUldL/PIsdPd1mtFU DqQxIXub7T7pN9ElsoU1e2KrS6YeU3MvAYm3mxOk5enOmcVHSG0HCTosMQDJlOK+C6hS2lwkL SW3DBoZIMYhCzwYrjWLjZVaxyEYQ9BGlxA/emVDehLUXArtPcxKtLjqOTBQnx8O4gry8QO1BY 06Rd0u4YUHjwQdeudjyE9X1UtasgD5N/toD9WJUKnrYKswJVxVP2hY0DWlBrBaumsfCDbVqrx qxQdFomDeYl0iKjEGoolIVx2svF0q7s5io4w8xVVHo1gvCRAPmTBTF6yblt1qIZ/L2gvAnhzx LlKQk7/wCgVpMxib91+TilgIPHIqLmHodfpbSst/Ciypp3a7rdZ7F72cxQWXRVuNdP3KHIl7k D668HGEZBnGKwY6jZCTTtTkDreV1D1JbLev4UzVx7DkAVqvnfrW+aavOwYxG1rjIXpk8KnWcM 6OIqpVdk2XdseyFHT6udxQphT76S92qjgwCSlwyKiV7RPIqIB4t30e3HI0nNJsGshdjofDLJo 50j1J2cBBh//dJuuXanjSyxlHwyoSty9MJPpXCqSRWZMnQ8ex4UWex72nA9pkCr4A== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Just booting up the latest git master (b00d209) on an aarch64 server and saw this. Nov 8 11:06:36 huawei-t2280-03 kernel: BUG: sleeping function called from invalid context at mm/slab.h:421 Nov 8 11:06:36 huawei-t2280-03 kernel: in_atomic(): 1, irqs_disabled(): 128, pid: 0, name: swapper/1 Nov 8 11:06:36 huawei-t2280-03 kernel: no locks held by swapper/1/0. Nov 8 11:06:36 huawei-t2280-03 kernel: irq event stamp: 0 Nov 8 11:06:36 huawei-t2280-03 kernel: hardirqs last enabled at (0): [<0000000000000000>] (null) Nov 8 11:06:36 huawei-t2280-03 kernel: hardirqs last disabled at (0): [] copy_process.isra.32.part.33+0x460/0x1534 Nov 8 11:06:36 huawei-t2280-03 kernel: softirqs last enabled at (0): [] copy_process.isra.32.part.33+0x460/0x1534 Nov 8 11:06:36 huawei-t2280-03 kernel: softirqs last disabled at (0): [<0000000000000000>] (null) Nov 8 11:06:36 huawei-t2280-03 kernel: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0-rc1+ #3 Nov 8 11:06:36 huawei-t2280-03 kernel: Call trace: Nov 8 11:06:36 huawei-t2280-03 kernel: dump_backtrace+0x0/0x190 Nov 8 11:06:36 huawei-t2280-03 kernel: show_stack+0x24/0x2c Nov 8 11:06:36 huawei-t2280-03 kernel: dump_stack+0xa4/0xe0 Nov 8 11:06:36 huawei-t2280-03 kernel: ___might_sleep+0x208/0x234 Nov 8 11:06:36 huawei-t2280-03 kernel: __might_sleep+0x58/0x8c Nov 8 11:06:36 huawei-t2280-03 kernel: kmem_cache_alloc_trace+0x29c/0x420 Nov 8 11:06:36 huawei-t2280-03 kernel: efi_mem_reserve_persistent+0x50/0xe8 Nov 8 11:06:36 huawei-t2280-03 kernel: its_cpu_init_lpis+0x298/0x2e0 Nov 8 11:06:36 huawei-t2280-03 kernel: its_cpu_init+0x7c/0x1a8 Nov 8 11:06:36 huawei-t2280-03 kernel: gic_starting_cpu+0x28/0x34 Nov 8 11:06:36 huawei-t2280-03 kernel: cpuhp_invoke_callback+0x104/0xd04 Nov 8 11:06:36 huawei-t2280-03 kernel: notify_cpu_starting+0x60/0xa0 Nov 8 11:06:36 huawei-t2280-03 kernel: secondary_start_kernel+0xcc/0x178 Any idea?