Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753296AbdDJMKi (ORCPT ); Mon, 10 Apr 2017 08:10:38 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:5353 "EHLO dggrg02-dlp.huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751615AbdDJMKg (ORCPT ); Mon, 10 Apr 2017 08:10:36 -0400 Message-ID: <58EB761E.9040002@huawei.com> Date: Mon, 10 Apr 2017 20:10:06 +0800 From: zhong jiang User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: Mel Gorman CC: Michal Hocko , Johannes Weiner , , Vlastimil Babka , "Linux Memory Management List" , LKML Subject: Re: NULL pointer dereference in the kernel 3.10 References: <58E8E81E.6090304@huawei.com> <20170410085604.zpenj6ggc3dsbgxw@techsingularity.net> In-Reply-To: <20170410085604.zpenj6ggc3dsbgxw@techsingularity.net> Content-Type: text/plain; charset="ISO-8859-15" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.29.68] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020201.58EB762E.0199,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: f531c773eebdda618edf49a7549c0877 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 21241 Lines: 294 On 2017/4/10 16:56, Mel Gorman wrote: > On Sat, Apr 08, 2017 at 09:39:42PM +0800, zhong jiang wrote: >> when runing the stabile docker cases in the vm. The following issue will come up. >> >> #40 [ffff8801b57ffb30] async_page_fault at ffffffff8165c9f8 >> [exception RIP: down_read_trylock+5] >> RIP: ffffffff810aca65 RSP: ffff8801b57ffbe8 RFLAGS: 00010202 >> RAX: 0000000000000000 RBX: ffff88018ae858c1 RCX: 0000000000000000 >> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008 >> RBP: ffff8801b57ffc10 R8: ffffea0006903de0 R9: ffff8800b3c61810 >> R10: 00000000000022cb R11: 0000000000000000 R12: ffff88018ae858c0 >> R13: ffffea0006903dc0 R14: 0000000000000008 R15: ffffea0006903dc0 >> ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000 > Post the full report including the kernel version and state whether any > additional patches to 3.10 are applied. > Hi, Mel Our kernel from RHEL 7.2, Addtional patches all from upstream -- include Bugfix and CVE. Commit 624483f3ea8 ("mm: rmap: fix use-after-free in __put_anon_vma") exclude in the RHEL 7.2. it looks seems to the issue. but I don't know how it triggered. or it is not the correct fix. Any suggestion? Thanks partly dmesg will print in the following. [59982.162223] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [59985.261635] device-mapper: ioctl: remove_all left 8 open device(s) [59986.492174] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [59987.445606] device-mapper: ioctl: remove_all left 8 open device(s) [59987.625887] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [59988.174600] device-mapper: ioctl: remove_all left 8 open device(s) [59988.345667] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [59990.951713] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [59991.025185] device vethd295793 entered promiscuous mode [59991.025253] IPv6: ADDRCONF(NETDEV_UP): vethd295793: link is not ready [59991.860817] IPv6: ADDRCONF(NETDEV_CHANGE): vethd295793: link becomes ready [59991.860836] docker0: port 4(vethd295793) entered forwarding state [59991.860840] docker0: port 4(vethd295793) entered forwarding state [59992.704027] docker0: port 4(vethd295793) entered disabled state [59992.724049] EXT4-fs (dm-9): mounted filesystem with ordered data mode. Opts: (null) [59993.098341] docker0: port 4(vethd295793) entered disabled state [59993.102583] device vethd295793 left promiscuous mode [59993.102605] docker0: port 4(vethd295793) entered disabled state [59995.109048] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [59995.229390] docker0: port 2(veth2ad76e2) entered disabled state [59995.523997] docker0: port 2(veth2ad76e2) entered disabled state [59995.528183] device veth2ad76e2 left promiscuous mode [59995.528202] docker0: port 2(veth2ad76e2) entered disabled state [59995.975559] device-mapper: ioctl: remove_all left 8 open device(s) [59996.084575] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [59996.660641] device-mapper: ioctl: remove_all left 7 open device(s) [59997.109018] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [59998.360101] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60001.721429] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [60001.771433] device vethcca3b6a entered promiscuous mode [60001.771643] IPv6: ADDRCONF(NETDEV_UP): vethcca3b6a: link is not ready [60002.872102] IPv6: ADDRCONF(NETDEV_CHANGE): vethcca3b6a: link becomes ready [60002.872124] docker0: port 2(vethcca3b6a) entered forwarding state [60002.872130] docker0: port 2(vethcca3b6a) entered forwarding state [60005.041654] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60005.597179] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60013.731728] [/usr/bin/os_rotate_and_save_log.sh]space of output directory is larger than 500M bytes,delete the oldest tar file messages-20170321181104-129.tar.bz2 [60016.243601] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60016.669594] device-mapper: ioctl: remove_all left 9 open device(s) [60016.930232] EXT4-fs (dm-9): mounted filesystem with ordered data mode. Opts: (null) [60017.918511] docker0: port 2(vethcca3b6a) entered forwarding state [60022.197574] device-mapper: ioctl: remove_all left 8 open device(s) [60022.575774] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [60023.288744] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60024.282579] device-mapper: ioctl: remove_all left 8 open device(s) [60024.505905] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [60024.934311] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60025.168626] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [60025.213931] device vethacdb1d3 entered promiscuous mode [60025.214023] IPv6: ADDRCONF(NETDEV_UP): vethacdb1d3: link is not ready [60026.095253] IPv6: ADDRCONF(NETDEV_CHANGE): vethacdb1d3: link becomes ready [60026.095286] docker0: port 4(vethacdb1d3) entered forwarding state [60026.095293] docker0: port 4(vethacdb1d3) entered forwarding state [60027.000131] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [60027.275219] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [60027.720511] docker0: port 4(vethacdb1d3) entered disabled state [60027.904669] docker0: port 4(vethacdb1d3) entered disabled state [60027.908548] device vethacdb1d3 left promiscuous mode [60027.908570] docker0: port 4(vethacdb1d3) entered disabled state [60028.355696] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [60028.422053] device veth5f1b1ca entered promiscuous mode [60028.422235] IPv6: ADDRCONF(NETDEV_UP): veth5f1b1ca: link is not ready [60029.189057] IPv6: ADDRCONF(NETDEV_CHANGE): veth5f1b1ca: link becomes ready [60029.189106] docker0: port 4(veth5f1b1ca) entered forwarding state [60029.189113] docker0: port 4(veth5f1b1ca) entered forwarding state [60030.497583] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60030.513251] docker0: port 4(veth5f1b1ca) entered disabled state [60032.548765] docker0: port 4(veth5f1b1ca) entered disabled state [60032.552584] device veth5f1b1ca left promiscuous mode [60032.552608] docker0: port 4(veth5f1b1ca) entered disabled state [60033.323499] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [60033.743783] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [60034.124363] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [60034.745977] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60035.290592] device-mapper: ioctl: remove_all left 9 open device(s) [60035.631079] EXT4-fs (dm-9): mounted filesystem with ordered data mode. Opts: (null) [60036.143921] EXT4-fs (dm-9): mounted filesystem with ordered data mode. Opts: (null) [60036.523837] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60036.917809] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [60046.916546] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [60060.427591] device-mapper: ioctl: remove_all left 7 open device(s) [60061.378699] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [60062.187386] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60062.685578] device-mapper: ioctl: remove_all left 8 open device(s) [60062.918018] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [60063.182233] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [60063.925052] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [60064.354388] docker0: port 2(vethcca3b6a) entered disabled state [60064.514541] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60064.580908] docker0: port 2(vethcca3b6a) entered disabled state [60064.584794] device vethcca3b6a left promiscuous mode [60064.584807] docker0: port 2(vethcca3b6a) entered disabled state [60065.190575] EXT4-fs (dm-9): mounted filesystem with ordered data mode. Opts: (null) [60065.267425] device veth5ae4b28 entered promiscuous mode [60065.267839] IPv6: ADDRCONF(NETDEV_UP): veth5ae4b28: link is not ready [60066.838868] IPv6: ADDRCONF(NETDEV_CHANGE): veth5ae4b28: link becomes ready [60066.838893] docker0: port 2(veth5ae4b28) entered forwarding state [60066.838899] docker0: port 2(veth5ae4b28) entered forwarding state [60067.701573] docker0: port 2(veth5ae4b28) entered disabled state [60068.117747] docker0: port 2(veth5ae4b28) entered disabled state [60068.124996] device veth5ae4b28 left promiscuous mode [60068.125020] docker0: port 2(veth5ae4b28) entered disabled state [60069.120881] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [60069.620570] device-mapper: ioctl: remove_all left 7 open device(s) [60069.721708] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60070.196476] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [60070.216278] device veth1709f7b entered promiscuous mode [60070.216350] IPv6: ADDRCONF(NETDEV_UP): veth1709f7b: link is not ready [60070.692079] IPv6: ADDRCONF(NETDEV_CHANGE): veth1709f7b: link becomes ready [60070.692099] docker0: port 2(veth1709f7b) entered forwarding state [60070.692104] docker0: port 2(veth1709f7b) entered forwarding state [60070.698211] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [60070.884584] device-mapper: ioctl: remove_all left 7 open device(s) [60072.819916] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60073.833590] device-mapper: ioctl: remove_all left 7 open device(s) [60074.082847] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [60082.504842] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [60083.298148] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60083.679313] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60084.745280] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [60085.694519] docker0: port 2(veth1709f7b) entered forwarding state [60086.052328] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [60086.618181] EXT4-fs (dm-9): mounted filesystem with ordered data mode. Opts: (null) [60087.131614] device-mapper: ioctl: remove_all left 9 open device(s) [60087.419709] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [60088.086751] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [60091.954031] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60092.217529] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [60092.775974] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [60095.231733] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [60095.256537] device veth60b0427 entered promiscuous mode [60095.256619] IPv6: ADDRCONF(NETDEV_UP): veth60b0427: link is not ready [60095.256624] docker0: port 4(veth60b0427) entered forwarding state uitcrash> dmesg [58913.919584] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [58925.853603] device-mapper: ioctl: remove_all left 8 open device(s) [58926.066492] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [58929.208621] device-mapper: ioctl: remove_all left 7 open device(s) [58929.737954] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [58930.619791] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [58931.602116] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [58932.036570] device-mapper: ioctl: remove_all left 9 open device(s) [58932.301732] EXT4-fs (dm-9): mounted filesystem with ordered data mode. Opts: (null) [58933.220390] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [58933.595871] docker0: port 4(veth0280f18) entered disabled state [58933.757559] docker0: port 4(veth0280f18) entered disabled state [58933.761922] device veth0280f18 left promiscuous mode [58933.761940] docker0: port 4(veth0280f18) entered disabled state [58934.219205] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [58934.241650] device veth64ac507 entered promiscuous mode [58934.241849] IPv6: ADDRCONF(NETDEV_UP): veth64ac507: link is not ready [58935.327295] IPv6: ADDRCONF(NETDEV_CHANGE): veth64ac507: link becomes ready [58935.327326] docker0: port 2(veth64ac507) entered forwarding state [58935.327332] docker0: port 2(veth64ac507) entered forwarding state [58935.557921] docker0: port 2(veth64ac507) entered disabled state [58935.659668] docker0: port 2(veth64ac507) entered disabled state [58935.663329] device veth64ac507 left promiscuous mode [58935.663343] docker0: port 2(veth64ac507) entered disabled state [58935.739020] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [58935.854853] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [58936.248296] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [58936.544557] device-mapper: ioctl: remove_all left 7 open device(s) [58936.640359] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null) [58936.691418] device vethf82c96f entered promiscuous mode [58936.691523] IPv6: ADDRCONF(NETDEV_UP): vethf82c96f: link is not ready [58937.387892] IPv6: ADDRCONF(NETDEV_CHANGE): vethf82c96f: link becomes ready [58937.387911] docker0: port 2(vethf82c96f) entered forwarding state [58937.387915] docker0: port 2(vethf82c96f) entered forwarding state [58937.633103] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [58938.113015] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [58941.570360] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [58942.331612] device-mapper: ioctl: remove_all left 7 open device(s) [58942.556858] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [58943.097591] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [58943.743816] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null) [58944.263205] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [58945.017670] EXT4-fs (dm-9): mounted filesystem with ordered data mode. Opts: (null) [58946.468176] EXT4-fs (dm-9): mounted filesystem with ordered data mode. Opts: (null) [58946.881381] [/usr/bin/os_rotate_and_save_log.sh]space of output directory is larger than 500M bytes,delete the oldest tar file messages-20170321173755-122.tar.bz2 [58948.679535] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [58949.065572] device-mapper: ioctl: remove_all left 9 open device(s) [58949.229711] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [58949.979575] device-mapper: ioctl: remove_all left 8 open device(s) [58950.373339] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [58951.166548] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [58951.486803] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [58952.414514] docker0: port 2(vethf82c96f) entered forwarding state [58952.495260] EXT4-fs (dm-6): mounted filesystem with ordered data mode. Opts: (null) [58953.268687] EXT4-fs (dm-9): mounted filesystem with ordered data mode. Opts: (null) [58953.973573] device-mapper: ioctl: remove_all left 10 open device(s) [58954.336967] EXT4-fs (dm-10): mounted filesystem with ordered data mode. Opts: (null) [58954.404284] device veth7697107 entered promiscuous mode [58954.404389] IPv6: ADDRCONF(NETDEV_UP): veth7697107: link is not ready [58955.361244] IPv6: ADDRCONF(NETDEV_CHANGE): veth7697107: link becomes ready [58955.361274] docker0: port 4(veth7697107) entered forwarding state [58955.361280] docker0: port 4(veth7697107) entered forwarding state [58959.547644] docker0: port 4(veth7697107) entered disabled state [58959.597633] EXT4-fs (dm-8): mounted filesystem with ordered data mode. Opts: (null) [58959.822261] docker0: port 4(veth7697107) entered disabled state ...skipping... [70244.508227] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [70244.510880] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [70244.513241] Stack: [70244.515503] 0000000400040000 ffff880100000000 0000000000000000 ffff8800b17b9000 [70244.519526] 0000000000000008 0000000000000000 0000000000000000 0000000000000010 [70244.523612] 0000000000000000 0000000500000001 0000000000000040 0000020000000000 [70244.526997] Call Trace: [70244.529851] [] _set_pages_array+0xe6/0x130 [70244.532971] [] set_pages_array_wc+0x13/0x20 [70244.535419] [] ttm_set_pages_caching+0x2f/0x70 [ttm] [70244.538553] [] ttm_alloc_new_pages.isra.6+0xb4/0x180 [ttm] [70244.542124] [] ttm_pool_populate+0x3e3/0x500 [ttm] [70244.545800] [] cirrus_ttm_tt_populate+0xe/0x10 [cirrus] [70244.548742] [] ttm_bo_move_memcpy+0x655/0x6d0 [ttm] [70244.552133] [] cirrus_bo_move+0x18/0x20 [cirrus] [70244.554460] [] ttm_bo_handle_move_mem+0x265/0x5b0 [ttm] [70244.557331] [] ? ttm_bo_mem_space+0xe7/0x350 [ttm] [70244.559991] [] ttm_bo_validate+0x20d/0x230 [ttm] [70244.563725] [] cirrus_bo_push_sysram+0x93/0xe0 [cirrus] [70244.567694] [] cirrus_crtc_do_set_base.isra.9.constprop.11+0x84/0x410 [cirrus] [70244.571073] [] cirrus_crtc_mode_set+0x455/0x4e0 [cirrus] [70244.573303] [] drm_crtc_helper_set_mode+0x319/0x550 [drm_kms_helper] [70244.575818] [] drm_crtc_helper_set_config+0x892/0xab0 [drm_kms_helper] [70244.578344] [] drm_mode_set_config_internal+0x67/0x100 [drm] [70244.580874] [] drm_fb_helper_pan_display+0xa0/0xf0 [drm_kms_helper] [70244.583298] [] fb_pan_display+0xc9/0x190 [70244.585517] [] bit_update_start+0x20/0x50 [70244.587552] [] fbcon_switch+0x39d/0x5a0 [70244.589771] [] redraw_screen+0x1a9/0x270 [70244.591791] [] ? fb_blank+0xae/0xc0 [70244.593737] [] fbcon_blank+0x22a/0x2f0 [70244.595662] [] ? wake_up_klogd+0x34/0x50 [70244.597544] [] ? __console_unlock+0x3f3/0x4a0 [70244.599419] [] ? _raw_spin_lock_irqsave+0x6e/0xc0 [70244.601322] [] ? __internal_add_timer+0x113/0x130 [70244.603197] [] ? mod_timer+0x11d/0x230 [70244.604913] [] do_unblank_screen+0xb8/0x1f0 [70244.606939] [] unblank_screen+0x10/0x20 [70244.608671] [] bust_spinlocks+0x19/0x40 [70244.610445] [] oops_end+0x38/0x150 [70244.612155] [] no_context+0x28f/0x2b2 [70244.613788] [] __bad_area_nosemaphore+0x73/0x1ca [70244.615692] [] ? flush_tlb_page+0x39/0xa0 [70244.617355] [] bad_area_nosemaphore+0x13/0x15 [70244.619047] [] __do_page_fault+0x246/0x490 [70244.620704] [] trace_do_page_fault+0x43/0x110 [70244.622656] [] do_async_page_fault+0x29/0xe0 [70244.624372] [] async_page_fault+0x28/0x30 [70244.626004] [] ? down_read_trylock+0x5/0x50 [70244.627698] [] ? page_lock_anon_vma_read+0x5c/0x120 [70244.629425] [] page_referenced+0x1c7/0x350 [70244.631047] [] shrink_active_list+0x1e4/0x400 [70244.632724] [] balance_pgdat+0x1d8/0x610 [70244.634351] [] kswapd+0x173/0x450 [70244.636030] [] ? wake_up_atomic_t+0x30/0x30 [70244.637777] [] ? balance_pgdat+0x610/0x610 [70244.640320] [] kthread+0xcf/0xe0 [70244.641846] [] ? kthread_create_on_node+0x120/0x120 [70244.643545] [] ret_from_fork+0x58/0x90 [70244.645096] [] ? kthread_create_on_node+0x120/0x120 [70244.646786] Code: ba 00 00 00 48 c7 c7 98 af 87 81 44 89 85 78 ff ff ff 89 4d 80 e8 09 8f 01 00 44 8b 85 78 ff ff ff 8b 4d 80 e9 c0 fd ff ff 0f 0b <0f> 0b 0f 0b 0f 1f 40 00 0f 1f 44 00 00 55 31 c0 48 89 e5 48 83 [70244.652123] RIP [] change_page_attr_set_clr+0x4c8/0x4d0 [70244.653950] RSP [70244.655376] ---[ end trace d39a19e1be103a08 ]--- [70244.656923] Kernel panic - not syncing: Fatal exception