Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753277Ab0HWG2B (ORCPT ); Mon, 23 Aug 2010 02:28:01 -0400 Received: from smtpauth.tellcom.com.tr ([92.45.6.164]:31185 "EHLO smtpout1.superonline.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751327Ab0HWG16 (ORCPT ); Mon, 23 Aug 2010 02:27:58 -0400 Message-ID: <4C7214DD.30500@superonline.com> Date: Mon, 23 Aug 2010 09:27:41 +0300 From: "M. Vefa Bicakci" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.8) Gecko/20100821 Icedove/3.1.2 MIME-Version: 1.0 To: KOSAKI Motohiro CC: Linux Kernel Mailing List Subject: Re: [Bisected Regression in 2.6.35] A full tmpfs filesystem causeshibernation to hang References: <4C677A49.4030904@superonline.com> <20100820115449.5FF1.A69D9226@jp.fujitsu.com> <20100823091948.6029.A69D9226@jp.fujitsu.com> In-Reply-To: <20100823091948.6029.A69D9226@jp.fujitsu.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-SMTP-Filter: SurGATE SMTP Filter Engine Release 2.1 ($Revision: 184 $) http://www.endersys.com X-SurGATE-Result: Clean (Content eval: -7.00 points) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 27362 Lines: 1186 Hello, On 23/08/10 03:22 AM, KOSAKI Motohiro wrote: > > sorry, my last mail has some mistake. > No problem. I did the tests again according to your new instructions, and I am appending the results. Regards, M. Vefa Bicakci > 1. Please let me know your machine & test script > % ./your-fills-up-the-tmpfs-script (i.e. run your script) > % cat /proc/meminfo MemTotal: 3104484 kB MemFree: 1258780 kB Buffers: 30820 kB Cached: 1693836 kB SwapCached: 0 kB Active: 1670344 kB Inactive: 137960 kB Active(anon): 1633940 kB Inactive(anon): 26224 kB Active(file): 36404 kB Inactive(file): 111736 kB Unevictable: 32 kB Mlocked: 32 kB HighTotal: 2226632 kB HighFree: 437684 kB LowTotal: 877852 kB LowFree: 821096 kB SwapTotal: 1999540 kB SwapFree: 1999540 kB Dirty: 28 kB Writeback: 0 kB AnonPages: 83676 kB Mapped: 44220 kB Shmem: 1576520 kB Slab: 17136 kB SReclaimable: 9480 kB SUnreclaim: 7656 kB KernelStack: 1832 kB PageTables: 2440 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 3551780 kB Committed_AS: 1892636 kB VmallocTotal: 122880 kB VmallocUsed: 16308 kB VmallocChunk: 92764 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 4096 kB DirectMap4k: 24568 kB DirectMap4M: 884736 kB > % cat /proc/vmstat nr_free_pages 314850 nr_inactive_anon 6480 nr_active_anon 408485 nr_inactive_file 27935 nr_active_file 9101 nr_unevictable 8 nr_mlock 8 nr_anon_pages 20919 nr_mapped 11055 nr_file_pages 431089 nr_dirty 8 nr_writeback 0 nr_slab_reclaimable 2370 nr_slab_unreclaimable 1914 nr_page_table_pages 610 nr_kernel_stack 229 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 394054 pgpgin 150719 pgpgout 5312 pswpin 0 pswpout 0 pgalloc_dma 2 pgalloc_normal 116354 pgalloc_high 2637682 pgalloc_movable 0 pgfree 3069531 pgactivate 2339016 pgdeactivate 160 pgfault 699155 pgmajfault 1082 pgrefill_dma 0 pgrefill_normal 0 pgrefill_high 160 pgrefill_movable 0 pgsteal_dma 0 pgsteal_normal 0 pgsteal_high 29 pgsteal_movable 0 pgscan_kswapd_dma 0 pgscan_kswapd_normal 0 pgscan_kswapd_high 0 pgscan_kswapd_movable 0 pgscan_direct_dma 0 pgscan_direct_normal 0 pgscan_direct_high 32 pgscan_direct_movable 0 pginodesteal 0 slabs_scanned 0 kswapd_steal 0 kswapd_inodesteal 0 kswapd_low_wmark_hit_quickly 0 kswapd_high_wmark_hit_quickly 0 kswapd_skip_congestion_wait 0 pageoutrun 0 allocstall 1 pgrotated 0 htlb_buddy_alloc_success 0 htlb_buddy_alloc_fail 0 unevictable_pgs_culled 7832 unevictable_pgs_scanned 0 unevictable_pgs_rescued 7046 unevictable_pgs_mlocked 8562 unevictable_pgs_munlocked 8554 unevictable_pgs_cleared 0 unevictable_pgs_stranded 0 unevictable_pgs_mlockfreed 0 > % cat /proc/zoneinfo Node 0, zone DMA pages free 2614 min 16 low 20 high 24 scanned 0 spanned 4080 present 3951 nr_free_pages 2614 nr_inactive_anon 0 nr_active_anon 0 nr_inactive_file 0 nr_active_file 0 nr_unevictable 0 nr_mlock 0 nr_anon_pages 0 nr_mapped 0 nr_file_pages 0 nr_dirty 0 nr_writeback 0 nr_slab_reclaimable 0 nr_slab_unreclaimable 2 nr_page_table_pages 0 nr_kernel_stack 0 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 0 protection: (0, 865, 3022, 3022) pagesets cpu: 0 count: 0 high: 0 batch: 1 vm stats threshold: 4 cpu: 1 count: 0 high: 0 batch: 1 vm stats threshold: 4 all_unreclaimable: 0 prev_priority: 9 start_pfn: 16 inactive_ratio: 1 recent_anon_rotated: 0 recent_anon_scanned: 0 recent_file_rotated: 0 recent_file_scanned: 0 anon_ratio: 30 Node 0, zone Normal pages free 202722 min 932 low 1165 high 1398 scanned 0 spanned 223230 present 221486 nr_free_pages 202722 nr_inactive_anon 0 nr_active_anon 0 nr_inactive_file 5792 nr_active_file 1970 nr_unevictable 0 nr_mlock 0 nr_anon_pages 0 nr_mapped 1 nr_file_pages 7761 nr_dirty 7 nr_writeback 0 nr_slab_reclaimable 2370 nr_slab_unreclaimable 1912 nr_page_table_pages 0 nr_kernel_stack 229 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 0 protection: (0, 0, 17259, 17259) pagesets cpu: 0 count: 155 high: 186 batch: 31 vm stats threshold: 16 cpu: 1 count: 173 high: 186 batch: 31 vm stats threshold: 16 all_unreclaimable: 0 prev_priority: 9 start_pfn: 4096 inactive_ratio: 1 recent_anon_rotated: 0 recent_anon_scanned: 0 recent_file_rotated: 272 recent_file_scanned: 1385 anon_ratio: 7 Node 0, zone HighMem pages free 109607 min 128 low 709 high 1290 scanned 0 spanned 556658 present 552309 nr_free_pages 109607 nr_inactive_anon 6482 nr_active_anon 408478 nr_inactive_file 22146 nr_active_file 7131 nr_unevictable 8 nr_mlock 8 nr_anon_pages 20919 nr_mapped 11054 nr_file_pages 423333 nr_dirty 2 nr_writeback 0 nr_slab_reclaimable 0 nr_slab_unreclaimable 0 nr_page_table_pages 610 nr_kernel_stack 0 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 394056 protection: (0, 0, 0, 0) pagesets cpu: 0 count: 107 high: 186 batch: 31 vm stats threshold: 24 cpu: 1 count: 129 high: 186 batch: 31 vm stats threshold: 24 all_unreclaimable: 0 prev_priority: 9 start_pfn: 227326 inactive_ratio: 4 recent_anon_rotated: 1259857 recent_anon_scanned: 2522124 recent_file_rotated: 1269 recent_file_scanned: 5591 anon_ratio: 16 > % df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda15 10317828 7309436 2484276 75% / tmpfs 1552240 8 1552232 1% /lib/init/rw udev 1549148 220 1548928 1% /dev tmpfs 1552240 4 1552236 1% /dev/shm tmpfs 1552240 1552240 0 100% /tmp > % cat your-fills-up-the-tmpfs-script #!/bin/bash rm -vf /tmp/tmp dd if=/dev/zero of=/tmp/tmp bs=1024k count=1600 shred -vn1 /tmp/tmp exit 0 ### removed when testing hibernation read -p "Press enter to hibernate..." echo -n reboot > /sys/power/disk echo -n disk > /sys/power/state echo "Exit code: $?" rm -vf /tmp/tmp > > 2. call shrink_all_memory() forcely and show result > % ./your-fills-up-the-tmpfs-script > % cat /proc/meminfo MemTotal: 3104484 kB MemFree: 1259400 kB Buffers: 30836 kB Cached: 1693572 kB SwapCached: 0 kB Active: 1670356 kB Inactive: 137708 kB Active(anon): 1633948 kB Inactive(anon): 25944 kB Active(file): 36408 kB Inactive(file): 111764 kB Unevictable: 32 kB Mlocked: 32 kB HighTotal: 2226632 kB HighFree: 438056 kB LowTotal: 877852 kB LowFree: 821344 kB SwapTotal: 1999540 kB SwapFree: 1999540 kB Dirty: 36 kB Writeback: 0 kB AnonPages: 83684 kB Mapped: 44236 kB Shmem: 1576240 kB Slab: 17136 kB SReclaimable: 9480 kB SUnreclaim: 7656 kB KernelStack: 1832 kB PageTables: 2440 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 3551780 kB Committed_AS: 1892412 kB VmallocTotal: 122880 kB VmallocUsed: 16308 kB VmallocChunk: 92764 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 4096 kB DirectMap4k: 24568 kB DirectMap4M: 884736 kB > % cat /proc/zoneinfo Node 0, zone DMA pages free 2614 min 16 low 20 high 24 scanned 0 spanned 4080 present 3951 nr_free_pages 2614 nr_inactive_anon 0 nr_active_anon 0 nr_inactive_file 0 nr_active_file 0 nr_unevictable 0 nr_mlock 0 nr_anon_pages 0 nr_mapped 0 nr_file_pages 0 nr_dirty 0 nr_writeback 0 nr_slab_reclaimable 0 nr_slab_unreclaimable 2 nr_page_table_pages 0 nr_kernel_stack 0 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 0 protection: (0, 865, 3022, 3022) pagesets cpu: 0 count: 0 high: 0 batch: 1 vm stats threshold: 4 cpu: 1 count: 0 high: 0 batch: 1 vm stats threshold: 4 all_unreclaimable: 0 prev_priority: 9 start_pfn: 16 inactive_ratio: 1 recent_anon_rotated: 0 recent_anon_scanned: 0 recent_file_rotated: 0 recent_file_scanned: 0 anon_ratio: 30 Node 0, zone Normal pages free 202691 min 932 low 1165 high 1398 scanned 0 spanned 223230 present 221486 nr_free_pages 202691 nr_inactive_anon 0 nr_active_anon 0 nr_inactive_file 5796 nr_active_file 1970 nr_unevictable 0 nr_mlock 0 nr_anon_pages 0 nr_mapped 1 nr_file_pages 7765 nr_dirty 7 nr_writeback 0 nr_slab_reclaimable 2370 nr_slab_unreclaimable 1912 nr_page_table_pages 0 nr_kernel_stack 229 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 0 protection: (0, 0, 17259, 17259) pagesets cpu: 0 count: 161 high: 186 batch: 31 vm stats threshold: 16 cpu: 1 count: 170 high: 186 batch: 31 vm stats threshold: 16 all_unreclaimable: 0 prev_priority: 9 start_pfn: 4096 inactive_ratio: 1 recent_anon_rotated: 0 recent_anon_scanned: 0 recent_file_rotated: 272 recent_file_scanned: 1389 anon_ratio: 7 Node 0, zone HighMem pages free 109514 min 128 low 709 high 1290 scanned 0 spanned 556658 present 552309 nr_free_pages 109514 nr_inactive_anon 6484 nr_active_anon 408487 nr_inactive_file 22148 nr_active_file 7132 nr_unevictable 8 nr_mlock 8 nr_anon_pages 20921 nr_mapped 11058 nr_file_pages 423338 nr_dirty 3 nr_writeback 0 nr_slab_reclaimable 0 nr_slab_unreclaimable 0 nr_page_table_pages 610 nr_kernel_stack 0 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 394058 protection: (0, 0, 0, 0) pagesets cpu: 0 count: 167 high: 186 batch: 31 vm stats threshold: 24 cpu: 1 count: 156 high: 186 batch: 31 vm stats threshold: 24 all_unreclaimable: 0 prev_priority: 9 start_pfn: 227326 inactive_ratio: 4 recent_anon_rotated: 1650360 recent_anon_scanned: 3304957 recent_file_rotated: 1270 recent_file_scanned: 5595 anon_ratio: 16 > # echo 1 > /proc/sys/vm/shrink_all_memory > # tail /var/log/messages [ 439.165652] shrink_all_memory start [ 439.165960] shrink_all_memory: req:1 reclaimed:32 free:313765 > % cat /proc/meminfo MemTotal: 3104484 kB MemFree: 1259516 kB Buffers: 30852 kB Cached: 1693672 kB SwapCached: 0 kB Active: 1669728 kB Inactive: 138456 kB Active(anon): 1633320 kB Inactive(anon): 26800 kB Active(file): 36408 kB Inactive(file): 111656 kB Unevictable: 32 kB Mlocked: 32 kB HighTotal: 2226632 kB HighFree: 438180 kB LowTotal: 877852 kB LowFree: 821336 kB SwapTotal: 1999540 kB SwapFree: 1999540 kB Dirty: 40 kB Writeback: 0 kB AnonPages: 83696 kB Mapped: 44236 kB Shmem: 1576460 kB Slab: 17140 kB SReclaimable: 9484 kB SUnreclaim: 7656 kB KernelStack: 1840 kB PageTables: 2440 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 3551780 kB Committed_AS: 1892540 kB VmallocTotal: 122880 kB VmallocUsed: 16308 kB VmallocChunk: 92764 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 4096 kB DirectMap4k: 24568 kB DirectMap4M: 884736 kB > % cat /proc/zoneinfo Node 0, zone DMA pages free 2614 min 16 low 20 high 24 scanned 0 spanned 4080 present 3951 nr_free_pages 2614 nr_inactive_anon 0 nr_active_anon 0 nr_inactive_file 0 nr_active_file 0 nr_unevictable 0 nr_mlock 0 nr_anon_pages 0 nr_mapped 0 nr_file_pages 0 nr_dirty 0 nr_writeback 0 nr_slab_reclaimable 0 nr_slab_unreclaimable 2 nr_page_table_pages 0 nr_kernel_stack 0 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 0 protection: (0, 865, 3022, 3022) pagesets cpu: 0 count: 0 high: 0 batch: 1 vm stats threshold: 4 cpu: 1 count: 0 high: 0 batch: 1 vm stats threshold: 4 all_unreclaimable: 0 prev_priority: 9 start_pfn: 16 inactive_ratio: 1 recent_anon_rotated: 0 recent_anon_scanned: 0 recent_file_rotated: 0 recent_file_scanned: 0 anon_ratio: 30 Node 0, zone Normal pages free 202720 min 932 low 1165 high 1398 scanned 0 spanned 223230 present 221486 nr_free_pages 202720 nr_inactive_anon 0 nr_active_anon 0 nr_inactive_file 5798 nr_active_file 1970 nr_unevictable 0 nr_mlock 0 nr_anon_pages 0 nr_mapped 1 nr_file_pages 7767 nr_dirty 0 nr_writeback 0 nr_slab_reclaimable 2371 nr_slab_unreclaimable 1912 nr_page_table_pages 0 nr_kernel_stack 230 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 0 protection: (0, 0, 17259, 17259) pagesets cpu: 0 count: 139 high: 186 batch: 31 vm stats threshold: 16 cpu: 1 count: 165 high: 186 batch: 31 vm stats threshold: 16 all_unreclaimable: 0 prev_priority: 9 start_pfn: 4096 inactive_ratio: 1 recent_anon_rotated: 0 recent_anon_scanned: 0 recent_file_rotated: 272 recent_file_scanned: 1391 anon_ratio: 7 Node 0, zone HighMem pages free 109576 min 128 low 709 high 1290 scanned 0 spanned 556658 present 552309 nr_free_pages 109576 nr_inactive_anon 6642 nr_active_anon 408330 nr_inactive_file 22118 nr_active_file 7132 nr_unevictable 8 nr_mlock 8 nr_anon_pages 20924 nr_mapped 11058 nr_file_pages 423306 nr_dirty 3 nr_writeback 0 nr_slab_reclaimable 0 nr_slab_unreclaimable 0 nr_page_table_pages 610 nr_kernel_stack 0 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 394056 protection: (0, 0, 0, 0) pagesets cpu: 0 count: 158 high: 186 batch: 31 vm stats threshold: 24 cpu: 1 count: 133 high: 186 batch: 31 vm stats threshold: 24 all_unreclaimable: 0 prev_priority: 9 start_pfn: 227326 inactive_ratio: 4 recent_anon_rotated: 103467 recent_anon_scanned: 207085 recent_file_rotated: 1270 recent_file_scanned: 5629 anon_ratio: 16 > 3. reset zone_reclaim_stat and rerun shrink_all_memory > % ./your-fills-up-the-tmpfs-script > # echo 1 > /proc/sys/vm/reset_reclaim_stat > % cat /proc/meminfo MemTotal: 3104484 kB MemFree: 1260012 kB Buffers: 30884 kB Cached: 1693496 kB SwapCached: 0 kB Active: 1669736 kB Inactive: 138316 kB Active(anon): 1633324 kB Inactive(anon): 26616 kB Active(file): 36412 kB Inactive(file): 111700 kB Unevictable: 32 kB Mlocked: 32 kB HighTotal: 2226632 kB HighFree: 438304 kB LowTotal: 877852 kB LowFree: 821708 kB SwapTotal: 1999540 kB SwapFree: 1999540 kB Dirty: 12 kB Writeback: 0 kB AnonPages: 83700 kB Mapped: 44240 kB Shmem: 1576272 kB Slab: 17140 kB SReclaimable: 9484 kB SUnreclaim: 7656 kB KernelStack: 1840 kB PageTables: 2440 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 3551780 kB Committed_AS: 1892440 kB VmallocTotal: 122880 kB VmallocUsed: 16308 kB VmallocChunk: 92764 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 4096 kB DirectMap4k: 24568 kB DirectMap4M: 884736 kB > % cat /proc/zoneinfo Node 0, zone DMA pages free 2614 min 16 low 20 high 24 scanned 0 spanned 4080 present 3951 nr_free_pages 2614 nr_inactive_anon 0 nr_active_anon 0 nr_inactive_file 0 nr_active_file 0 nr_unevictable 0 nr_mlock 0 nr_anon_pages 0 nr_mapped 0 nr_file_pages 0 nr_dirty 0 nr_writeback 0 nr_slab_reclaimable 0 nr_slab_unreclaimable 2 nr_page_table_pages 0 nr_kernel_stack 0 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 0 protection: (0, 865, 3022, 3022) pagesets cpu: 0 count: 0 high: 0 batch: 1 vm stats threshold: 4 cpu: 1 count: 0 high: 0 batch: 1 vm stats threshold: 4 all_unreclaimable: 0 prev_priority: 9 start_pfn: 16 inactive_ratio: 1 recent_anon_rotated: 0 recent_anon_scanned: 0 recent_file_rotated: 0 recent_file_scanned: 0 anon_ratio: 30 Node 0, zone Normal pages free 202844 min 932 low 1165 high 1398 scanned 0 spanned 223230 present 221486 nr_free_pages 202844 nr_inactive_anon 0 nr_active_anon 0 nr_inactive_file 5808 nr_active_file 1970 nr_unevictable 0 nr_mlock 0 nr_anon_pages 0 nr_mapped 1 nr_file_pages 7777 nr_dirty 5 nr_writeback 0 nr_slab_reclaimable 2371 nr_slab_unreclaimable 1912 nr_page_table_pages 0 nr_kernel_stack 230 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 0 protection: (0, 0, 17259, 17259) pagesets cpu: 0 count: 153 high: 186 batch: 31 vm stats threshold: 16 cpu: 1 count: 39 high: 186 batch: 31 vm stats threshold: 16 all_unreclaimable: 0 prev_priority: 9 start_pfn: 4096 inactive_ratio: 1 recent_anon_rotated: 0 recent_anon_scanned: 0 recent_file_rotated: 0 recent_file_scanned: 2 anon_ratio: 12 Node 0, zone HighMem pages free 109607 min 128 low 709 high 1290 scanned 0 spanned 556658 present 552309 nr_free_pages 109607 nr_inactive_anon 6638 nr_active_anon 408331 nr_inactive_file 22120 nr_active_file 7133 nr_unevictable 8 nr_mlock 8 nr_anon_pages 20925 nr_mapped 11057 nr_file_pages 423305 nr_dirty 1 nr_writeback 0 nr_slab_reclaimable 0 nr_slab_unreclaimable 0 nr_page_table_pages 610 nr_kernel_stack 0 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 394052 protection: (0, 0, 0, 0) pagesets cpu: 0 count: 157 high: 186 batch: 31 vm stats threshold: 24 cpu: 1 count: 94 high: 186 batch: 31 vm stats threshold: 24 all_unreclaimable: 0 prev_priority: 9 start_pfn: 227326 inactive_ratio: 4 recent_anon_rotated: 896 recent_anon_scanned: 1078 recent_file_rotated: 0 recent_file_scanned: 1 anon_ratio: 20 > # echo 1 > /proc/sys/vm/shrink_all_memory > # tail /var/log/messages [ 504.609297] shrink_all_memory start [ 504.609537] shrink_all_memory: req:1 reclaimed:31 free:315005 > % cat /proc/meminfo MemTotal: 3104484 kB MemFree: 1255796 kB Buffers: 30788 kB Cached: 1697944 kB SwapCached: 0 kB Active: 1669480 kB Inactive: 143044 kB Active(anon): 1633064 kB Inactive(anon): 31432 kB Active(file): 36416 kB Inactive(file): 111612 kB Unevictable: 32 kB Mlocked: 32 kB HighTotal: 2226632 kB HighFree: 433964 kB LowTotal: 877852 kB LowFree: 821832 kB SwapTotal: 1999540 kB SwapFree: 1999540 kB Dirty: 40 kB Writeback: 0 kB AnonPages: 83852 kB Mapped: 44220 kB Shmem: 1580704 kB Slab: 17140 kB SReclaimable: 9484 kB SUnreclaim: 7656 kB KernelStack: 1840 kB PageTables: 2440 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 3551780 kB Committed_AS: 1896832 kB VmallocTotal: 122880 kB VmallocUsed: 16308 kB VmallocChunk: 92764 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 4096 kB DirectMap4k: 24568 kB DirectMap4M: 884736 kB > % cat /proc/zoneinfo Node 0, zone DMA pages free 2614 min 16 low 20 high 24 scanned 0 spanned 4080 present 3951 nr_free_pages 2614 nr_inactive_anon 0 nr_active_anon 0 nr_inactive_file 0 nr_active_file 0 nr_unevictable 0 nr_mlock 0 nr_anon_pages 0 nr_mapped 0 nr_file_pages 0 nr_dirty 0 nr_writeback 0 nr_slab_reclaimable 0 nr_slab_unreclaimable 2 nr_page_table_pages 0 nr_kernel_stack 0 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 0 protection: (0, 865, 3022, 3022) pagesets cpu: 0 count: 0 high: 0 batch: 1 vm stats threshold: 4 cpu: 1 count: 0 high: 0 batch: 1 vm stats threshold: 4 all_unreclaimable: 0 prev_priority: 10 start_pfn: 16 inactive_ratio: 1 recent_anon_rotated: 0 recent_anon_scanned: 0 recent_file_rotated: 0 recent_file_scanned: 0 anon_ratio: 30 Node 0, zone Normal pages free 202844 min 932 low 1165 high 1398 scanned 0 spanned 223230 present 221486 nr_free_pages 202844 nr_inactive_anon 0 nr_active_anon 0 nr_inactive_file 5778 nr_active_file 1971 nr_unevictable 0 nr_mlock 0 nr_anon_pages 0 nr_mapped 1 nr_file_pages 7749 nr_dirty 5 nr_writeback 0 nr_slab_reclaimable 2371 nr_slab_unreclaimable 1912 nr_page_table_pages 0 nr_kernel_stack 230 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 0 protection: (0, 0, 17259, 17259) pagesets cpu: 0 count: 102 high: 186 batch: 31 vm stats threshold: 16 cpu: 1 count: 63 high: 186 batch: 31 vm stats threshold: 16 all_unreclaimable: 0 prev_priority: 10 start_pfn: 4096 inactive_ratio: 1 recent_anon_rotated: 0 recent_anon_scanned: 0 recent_file_rotated: 1 recent_file_scanned: 38 anon_ratio: 2 Node 0, zone HighMem pages free 109545 min 128 low 709 high 1290 scanned 96 spanned 556658 present 552309 nr_free_pages 109545 nr_inactive_anon 6797 nr_active_anon 408235 nr_inactive_file 22122 nr_active_file 7133 nr_unevictable 8 nr_mlock 8 nr_anon_pages 20925 nr_mapped 11054 nr_file_pages 423370 nr_dirty 5 nr_writeback 0 nr_slab_reclaimable 0 nr_slab_unreclaimable 0 nr_page_table_pages 610 nr_kernel_stack 0 nr_unstable 0 nr_bounce 0 nr_vmscan_write 0 nr_writeback_temp 0 nr_isolated_anon 0 nr_isolated_file 0 nr_shmem 394115 protection: (0, 0, 0, 0) pagesets cpu: 0 count: 137 high: 186 batch: 31 vm stats threshold: 24 cpu: 1 count: 119 high: 186 batch: 31 vm stats threshold: 24 all_unreclaimable: 0 prev_priority: 10 start_pfn: 227326 inactive_ratio: 4 recent_anon_rotated: 1358 recent_anon_scanned: 1730 recent_file_rotated: 0 recent_file_scanned: 3 anon_ratio: 11 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/