Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031675AbdD0JLy (ORCPT ); Thu, 27 Apr 2017 05:11:54 -0400 Received: from ipmail06.adl2.internode.on.net ([150.101.137.129]:48813 "EHLO ipmail06.adl2.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031608AbdD0JLq (ORCPT ); Thu, 27 Apr 2017 05:11:46 -0400 X-Greylist: delayed 303 seconds by postgrey-1.27 at vger.kernel.org; Thu, 27 Apr 2017 05:11:45 EDT X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BF/QC1swFZAEZk0nZUCIMZhkGDK4dgqFJDAYVgAoQ0WAMBAQEBAQIPAQEBMk+FFgYjFR4jEAgdAhIBFzkeBg0IAQGKGKxqgiaLU4ELhUmCCYcsagGFHAWJR4ZIgQOMPoIQiDqDGpcGSIVijX1WgQsuICyHTjCGbw0XghcBAQE X-IronPort-SPAM: SPAM Subject: 4.11.0-rc8+/x86_64 desktop lockup until applications closed References: To: Linux Kernel Mailing List Cc: linux-mm@kvack.org From: Arthur Marsh X-Forwarded-Message-Id: Message-ID: Date: Thu, 27 Apr 2017 18:36:38 +0930 User-Agent: Mozilla/5.0 (X11; Linux i686; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5383 Lines: 111 I came home yesterday to discover my desktop KDE/plasma session locked up until I could shutdown firefox and chromium from a console login. The desktop then became responsive and I could then restart firefox and chromium. the 4GiB swap space was nearly full, but the OOM killer apparently didn't run. dmesg showed: [55363.482931] QXcbEventReader: page allocation stalls for 10048ms, order:0, mode:0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null) [55363.482942] QXcbEventReader cpuset=/ mems_allowed=0 [55363.482948] CPU: 2 PID: 4092 Comm: QXcbEventReader Not tainted 4.11.0-rc8+ #2670 [55363.482950] Hardware name: System manufacturer System Product Name/M3A78 PRO, BIOS 1701 01/27/2011 [55363.482951] Call Trace: [55363.482959] ? dump_stack+0x5c/0x84 [55363.482962] ? warn_alloc+0x112/0x1b0 [55363.482964] ? __alloc_pages_slowpath+0x836/0xde0 [55363.482967] ? ktime_get+0x51/0xd0 [55363.482979] ? scsi_request_fn+0x3d/0x690 [scsi_mod] [55363.482981] ? __alloc_pages_nodemask+0x1eb/0x230 [55363.482984] ? alloc_pages_vma+0xc4/0x280 [55363.482987] ? __read_swap_cache_async+0x189/0x280 [55363.482990] ? read_swap_cache_async+0x24/0x60 [55363.482991] ? swapin_readahead+0x10d/0x1c0 [55363.482994] ? do_swap_page+0x272/0x720 [55363.482997] ? __handle_mm_fault+0x773/0x10f0 [55363.482999] ? handle_mm_fault+0xe7/0x260 [55363.483002] ? __do_page_fault+0x2d4/0x630 [55363.483005] ? page_fault+0x28/0x30 [55363.483008] ? copy_user_generic_string+0x2c/0x40 [55363.483011] ? copy_page_to_iter+0x91/0x2d0 [55363.483014] ? skb_copy_datagram_iter+0x146/0x270 [55363.483016] ? unix_stream_read_actor+0x1a/0x30 [55363.483018] ? unix_stream_read_generic+0x2f8/0x8c0 [55363.483020] ? _raw_spin_lock+0x13/0x40 [55363.483022] ? _raw_spin_unlock_irq+0x1d/0x40 [55363.483024] ? free_swap_slot+0x4e/0x110 [55363.483026] ? _raw_spin_unlock+0x16/0x40 [55363.483028] ? unix_stream_recvmsg+0x81/0xa0 [55363.483029] ? unix_state_double_unlock+0x40/0x40 [55363.483031] ? SYSC_recvfrom+0xe3/0x170 [55363.483034] ? handle_mm_fault+0xe7/0x260 [55363.483036] ? __do_page_fault+0x301/0x630 [55363.483038] ? entry_SYSCALL_64_fastpath+0x1e/0xad [55363.483040] Mem-Info: [55363.483044] active_anon:1479559 inactive_anon:281161 isolated_anon:299 active_file:49213 inactive_file:42134 isolated_file:0 unevictable:4651 dirty:108 writeback:188 unstable:0 slab_reclaimable:11225 slab_unreclaimable:20186 mapped:204768 shmem:145888 pagetables:39859 bounce:0 free:25470 free_pcp:0 free_cma:0 [55363.483050] Node 0 active_anon:5918236kB inactive_anon:1124644kB active_file:196852kB inactive_file:168536kB unevictable:18604kB isolated(anon):1196kB isolated(file):0kB mapped:819072kB dirty:432kB writeback:752kB shmem:583552kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [55363.483052] Node 0 DMA free:15904kB min:132kB low:164kB high:196kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15904kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [55363.483056] lowmem_reserve[]: 0 3150 7885 7885 [55363.483059] Node 0 DMA32 free:45556kB min:26948kB low:33684kB high:40420kB active_anon:2273532kB inactive_anon:542768kB active_file:99788kB inactive_file:89940kB unevictable:32kB writepending:440kB present:3391168kB managed:3314260kB mlocked:32kB slab_reclaimable:8800kB slab_unreclaimable:25976kB kernel_stack:7992kB pagetables:68028kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [55363.483063] lowmem_reserve[]: 0 0 4734 4734 [55363.483066] Node 0 Normal free:40420kB min:40500kB low:50624kB high:60748kB active_anon:3644668kB inactive_anon:581672kB active_file:97068kB inactive_file:78784kB unevictable:18572kB writepending:0kB present:4980736kB managed:4848692kB mlocked:18572kB slab_reclaimable:36100kB slab_unreclaimable:54768kB kernel_stack:13544kB pagetables:91408kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [55363.483069] lowmem_reserve[]: 0 0 0 0 [55363.483072] Node 0 DMA: 0*4kB 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15904kB [55363.483081] Node 0 DMA32: 422*4kB (UME) 847*8kB (UME) 734*16kB (UME) 338*32kB (UME) 108*64kB (UME) 23*128kB (UME) 9*256kB (M) 3*512kB (M) 2*1024kB (M) 0*2048kB 0*4096kB = 46768kB [55363.483090] Node 0 Normal: 1293*4kB (UME) 1451*8kB (UME) 845*16kB (UME) 293*32kB (UME) 36*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 41980kB [55363.483099] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [55363.483100] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [55363.483101] 251525 total pagecache pages [55363.483104] 10025 pages in swap cache [55363.483105] Swap cache stats: add 3287896, delete 3277870, find 405176/629612 [55363.483106] Free swap = 498568kB [55363.483107] Total swap = 4194288kB [55363.483108] 2096974 pages RAM [55363.483109] 0 pages HighMem/MovableOnly [55363.483110] 52260 pages reserved [55363.483111] 0 pages hwpoisoned I'm happy to supply configuation information and run further tests. Arthur.