From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
To: mhocko@kernel.org
Cc: david@fromorbit.com, dchinner@redhat.com, hch@lst.de,
mgorman@suse.de, viro@ZenIV.linux.org.uk, linux-mm@kvack.org,
hannes@cmpxchg.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 1/2] mm, vmscan: account the number of isolated pages per zone
Date: Tue, 21 Feb 2017 23:35:07 +0900 [thread overview]
Message-ID: <201702212335.DJB30777.JOFMHSFtVLQOOF@I-love.SAKURA.ne.jp> (raw)
In-Reply-To: <20170221094034.GF15595@dhcp22.suse.cz>
Michal Hocko wrote:
> OK, so it seems that all the distractions are handled now and linux-next
> should provide a reasonable base for testing. You said you weren't able
> to reproduce the original long stalls on too_many_isolated(). I would be
> still interested to see those oom reports and potential anomalies in the
> isolated counts before I send the patch for inclusion so your further
> testing would be more than appreciated. Also stalls > 10s without any
> previous occurrences would be interesting.
I confirmed that linux-next-20170221 with kmallocwd applied can reproduce
infinite too_many_isolated() loop problem. Please send your patches to linux-next.
Complete log is at http://I-love.SAKURA.ne.jp/tmp/serial-20170221.txt.xz .
----------------------------------------
[ 1160.162013] Out of memory: Kill process 7523 (a.out) score 998 or sacrifice child
[ 1160.164422] Killed process 7523 (a.out) total-vm:4168kB, anon-rss:84kB, file-rss:0kB, shmem-rss:0kB
[ 1160.169699] oom_reaper: reaped process 7523 (a.out), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
[ 1209.781787] MemAlloc-Info: stalling=32 dying=1 exiting=0 victim=1 oom_count=45896
[ 1209.790966] MemAlloc: kswapd0(67) flags=0xa60840 switches=51139 uninterruptible
[ 1209.799726] kswapd0 D10936 67 2 0x00000000
[ 1209.807326] Call Trace:
[ 1209.812581] __schedule+0x336/0xe00
[ 1209.818599] schedule+0x3d/0x90
[ 1209.823907] schedule_timeout+0x26a/0x510
[ 1209.827218] ? trace_hardirqs_on+0xd/0x10
[ 1209.830535] __down_common+0xfb/0x131
[ 1209.833801] ? _xfs_buf_find+0x2cb/0xc10 [xfs]
[ 1209.837372] __down+0x1d/0x1f
[ 1209.840331] down+0x41/0x50
[ 1209.843243] xfs_buf_lock+0x64/0x370 [xfs]
[ 1209.846597] _xfs_buf_find+0x2cb/0xc10 [xfs]
[ 1209.850031] ? _xfs_buf_find+0xa4/0xc10 [xfs]
[ 1209.853514] xfs_buf_get_map+0x2a/0x480 [xfs]
[ 1209.855831] xfs_buf_read_map+0x2c/0x400 [xfs]
[ 1209.857388] ? free_debug_processing+0x27d/0x2af
[ 1209.859037] xfs_trans_read_buf_map+0x186/0x830 [xfs]
[ 1209.860707] xfs_read_agf+0xc8/0x2b0 [xfs]
[ 1209.862184] xfs_alloc_read_agf+0x7a/0x300 [xfs]
[ 1209.863728] ? xfs_alloc_space_available+0x7b/0x120 [xfs]
[ 1209.865385] xfs_alloc_fix_freelist+0x3bc/0x490 [xfs]
[ 1209.866974] ? __radix_tree_lookup+0x84/0xf0
[ 1209.868374] ? xfs_perag_get+0x1a0/0x310 [xfs]
[ 1209.869798] ? xfs_perag_get+0x5/0x310 [xfs]
[ 1209.871288] xfs_alloc_vextent+0x161/0xda0 [xfs]
[ 1209.872757] xfs_bmap_btalloc+0x46c/0x8b0 [xfs]
[ 1209.874182] ? save_stack_trace+0x1b/0x20
[ 1209.875542] xfs_bmap_alloc+0x17/0x30 [xfs]
[ 1209.876847] xfs_bmapi_write+0x74e/0x11d0 [xfs]
[ 1209.878190] xfs_iomap_write_allocate+0x199/0x3a0 [xfs]
[ 1209.879632] xfs_map_blocks+0x2cc/0x5a0 [xfs]
[ 1209.880909] xfs_do_writepage+0x215/0x920 [xfs]
[ 1209.882255] ? clear_page_dirty_for_io+0xb4/0x310
[ 1209.883598] xfs_vm_writepage+0x3b/0x70 [xfs]
[ 1209.884841] pageout.isra.54+0x1a4/0x460
[ 1209.886210] shrink_page_list+0xa86/0xcf0
[ 1209.887441] shrink_inactive_list+0x1c5/0x660
[ 1209.888682] shrink_node_memcg+0x535/0x7f0
[ 1209.889975] ? mem_cgroup_iter+0x14d/0x720
[ 1209.891197] shrink_node+0xe1/0x310
[ 1209.892288] kswapd+0x362/0x9b0
[ 1209.893308] kthread+0x10f/0x150
[ 1209.894383] ? mem_cgroup_shrink_node+0x3b0/0x3b0
[ 1209.895703] ? kthread_create_on_node+0x70/0x70
[ 1209.896956] ret_from_fork+0x31/0x40
[ 1209.898117] MemAlloc: systemd-journal(526) flags=0x400900 switches=33248 seq=121659 gfp=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD) order=0 delay=52772 uninterruptible
[ 1209.902154] systemd-journal D11240 526 1 0x00000000
[ 1209.903642] Call Trace:
[ 1209.904574] __schedule+0x336/0xe00
[ 1209.905734] schedule+0x3d/0x90
[ 1209.906817] schedule_timeout+0x20d/0x510
[ 1209.908025] ? prepare_to_wait+0x2b/0xc0
[ 1209.909268] ? lock_timer_base+0xa0/0xa0
[ 1209.910460] io_schedule_timeout+0x1e/0x50
[ 1209.911681] congestion_wait+0x86/0x260
[ 1209.912853] ? remove_wait_queue+0x60/0x60
[ 1209.914115] shrink_inactive_list+0x5b4/0x660
[ 1209.915385] ? __list_lru_count_one.isra.2+0x22/0x80
[ 1209.916768] shrink_node_memcg+0x535/0x7f0
[ 1209.918173] shrink_node+0xe1/0x310
[ 1209.919288] do_try_to_free_pages+0xe1/0x300
[ 1209.920548] try_to_free_pages+0x131/0x3f0
[ 1209.921827] __alloc_pages_slowpath+0x3ec/0xd95
[ 1209.923137] __alloc_pages_nodemask+0x3e4/0x460
[ 1209.924454] ? __radix_tree_lookup+0x84/0xf0
[ 1209.925790] alloc_pages_current+0x97/0x1b0
[ 1209.927021] ? find_get_entry+0x5/0x300
[ 1209.928189] __page_cache_alloc+0x15d/0x1a0
[ 1209.929471] ? pagecache_get_page+0x2c/0x2b0
[ 1209.930716] filemap_fault+0x4df/0x8b0
[ 1209.931867] ? filemap_fault+0x373/0x8b0
[ 1209.933111] ? xfs_ilock+0x22c/0x360 [xfs]
[ 1209.934510] ? xfs_filemap_fault+0x64/0x1e0 [xfs]
[ 1209.935857] ? down_read_nested+0x7b/0xc0
[ 1209.937123] ? xfs_ilock+0x22c/0x360 [xfs]
[ 1209.938373] xfs_filemap_fault+0x6c/0x1e0 [xfs]
[ 1209.939691] __do_fault+0x1e/0xa0
[ 1209.940807] ? _raw_spin_unlock+0x27/0x40
[ 1209.942002] __handle_mm_fault+0xbb1/0xf40
[ 1209.943228] ? mutex_unlock+0x12/0x20
[ 1209.944410] ? devkmsg_read+0x15c/0x330
[ 1209.945912] handle_mm_fault+0x16b/0x390
[ 1209.947297] ? handle_mm_fault+0x49/0x390
[ 1209.948868] __do_page_fault+0x24a/0x530
[ 1209.950351] do_page_fault+0x30/0x80
[ 1209.951615] page_fault+0x28/0x30
[ 1209.952724] RIP: 0033:0x556f398d623f
[ 1209.953834] RSP: 002b:00007fff1da75710 EFLAGS: 00010206
[ 1209.955273] RAX: 0000556f3b12b9d0 RBX: 0000000000000009 RCX: 0000000000000020
[ 1209.957117] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 1209.958849] RBP: 00007fff1da759b0 R08: 0000000000000000 R09: 0000000000000000
[ 1209.960659] R10: 00000000ffffffc0 R11: 00007fdc0df4ef10 R12: 00007fff1da75f30
[ 1209.962397] R13: 00007fff1da78810 R14: 0000000000000009 R15: 0000000000000006
[ 1209.964204] MemAlloc: auditd(563) flags=0x400900 switches=6443 seq=774 gfp=0x142134a(GFP_NOFS|__GFP_HIGHMEM|__GFP_COLD|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL|__GFP_MOVABLE) order=0 delay=16511 uninterruptible
[ 1209.969005] auditd D12280 563 1 0x00000000
[ 1209.970503] Call Trace:
[ 1209.971436] __schedule+0x336/0xe00
[ 1209.972621] schedule+0x3d/0x90
[ 1209.973696] schedule_timeout+0x20d/0x510
[ 1209.974910] ? prepare_to_wait+0x2b/0xc0
[ 1209.976155] ? lock_timer_base+0xa0/0xa0
[ 1209.977350] io_schedule_timeout+0x1e/0x50
[ 1209.978597] congestion_wait+0x86/0x260
[ 1209.979795] ? remove_wait_queue+0x60/0x60
[ 1209.981020] shrink_inactive_list+0x5b4/0x660
[ 1209.982290] ? __list_lru_count_one.isra.2+0x22/0x80
[ 1209.983748] shrink_node_memcg+0x535/0x7f0
[ 1209.985041] ? mem_cgroup_iter+0x14d/0x720
[ 1209.986267] shrink_node+0xe1/0x310
[ 1209.987424] do_try_to_free_pages+0xe1/0x300
[ 1209.988705] try_to_free_pages+0x131/0x3f0
[ 1209.989935] __alloc_pages_slowpath+0x3ec/0xd95
[ 1209.991274] __alloc_pages_nodemask+0x3e4/0x460
[ 1209.992601] alloc_pages_current+0x97/0x1b0
[ 1209.993845] __page_cache_alloc+0x15d/0x1a0
[ 1209.995120] __do_page_cache_readahead+0x118/0x410
[ 1209.996535] ? __do_page_cache_readahead+0x191/0x410
[ 1209.997946] filemap_fault+0x35f/0x8b0
[ 1209.999199] ? xfs_ilock+0x22c/0x360 [xfs]
[ 1210.000473] ? xfs_filemap_fault+0x64/0x1e0 [xfs]
[ 1210.001843] ? down_read_nested+0x7b/0xc0
[ 1210.003184] ? xfs_ilock+0x22c/0x360 [xfs]
[ 1210.004471] xfs_filemap_fault+0x6c/0x1e0 [xfs]
[ 1210.005792] __do_fault+0x1e/0xa0
[ 1210.006925] __handle_mm_fault+0xbb1/0xf40
[ 1210.008241] ? ep_poll+0x2ea/0x3b0
[ 1210.009373] handle_mm_fault+0x16b/0x390
[ 1210.010572] ? handle_mm_fault+0x49/0x390
[ 1210.011818] __do_page_fault+0x24a/0x530
[ 1210.013059] ? wake_up_q+0x80/0x80
[ 1210.014176] do_page_fault+0x30/0x80
[ 1210.015367] page_fault+0x28/0x30
[ 1210.016473] RIP: 0033:0x7fcb0c838d13
[ 1210.017635] RSP: 002b:00007ffe275b95a0 EFLAGS: 00010293
[ 1210.019120] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fcb0c838d13
[ 1210.020867] RDX: 0000000000000040 RSI: 0000559240b08d40 RDI: 0000000000000009
[ 1210.022769] RBP: 0000000000000000 R08: 00000000000cf8ba R09: 0000000000000001
[ 1210.024530] R10: 000000000000e95f R11: 0000000000000293 R12: 000055923fbe5e60
[ 1210.026308] R13: 0000000000000000 R14: 0000000000000000 R15: 000055923fbe5e60
[ 1210.028961] MemAlloc: vmtoolsd(723) flags=0x400900 switches=36213 seq=120979 gfp=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD) order=0 delay=52811 uninterruptible
[ 1210.032683] vmtoolsd D11240 723 1 0x00000080
[ 1210.034316] Call Trace:
[ 1210.035340] __schedule+0x336/0xe00
[ 1210.036444] schedule+0x3d/0x90
[ 1210.037462] schedule_timeout+0x20d/0x510
[ 1210.038694] ? prepare_to_wait+0x2b/0xc0
[ 1210.039849] ? lock_timer_base+0xa0/0xa0
[ 1210.041005] io_schedule_timeout+0x1e/0x50
[ 1210.042435] congestion_wait+0x86/0x260
[ 1210.043575] ? remove_wait_queue+0x60/0x60
[ 1210.044763] shrink_inactive_list+0x5b4/0x660
[ 1210.046058] ? __list_lru_count_one.isra.2+0x22/0x80
[ 1210.047419] shrink_node_memcg+0x535/0x7f0
[ 1210.048609] shrink_node+0xe1/0x310
[ 1210.049688] do_try_to_free_pages+0xe1/0x300
[ 1210.051183] try_to_free_pages+0x131/0x3f0
[ 1210.052421] __alloc_pages_slowpath+0x3ec/0xd95
[ 1210.053717] __alloc_pages_nodemask+0x3e4/0x460
[ 1210.055025] ? __radix_tree_lookup+0x84/0xf0
[ 1210.056264] alloc_pages_current+0x97/0x1b0
[ 1210.057466] ? find_get_entry+0x5/0x300
[ 1210.058695] __page_cache_alloc+0x15d/0x1a0
[ 1210.059894] ? pagecache_get_page+0x2c/0x2b0
[ 1210.061128] filemap_fault+0x4df/0x8b0
[ 1210.062340] ? filemap_fault+0x373/0x8b0
[ 1210.063545] ? xfs_ilock+0x22c/0x360 [xfs]
[ 1210.064766] ? xfs_filemap_fault+0x64/0x1e0 [xfs]
[ 1210.066135] ? down_read_nested+0x7b/0xc0
[ 1210.067405] ? xfs_ilock+0x22c/0x360 [xfs]
[ 1210.068706] xfs_filemap_fault+0x6c/0x1e0 [xfs]
[ 1210.070021] __do_fault+0x1e/0xa0
[ 1210.071102] __handle_mm_fault+0xbb1/0xf40
[ 1210.072296] handle_mm_fault+0x16b/0x390
[ 1210.073509] ? handle_mm_fault+0x49/0x390
[ 1210.074683] __do_page_fault+0x24a/0x530
[ 1210.075872] do_page_fault+0x30/0x80
[ 1210.076974] page_fault+0x28/0x30
[ 1210.078090] RIP: 0033:0x7f12e9fd6420
[ 1210.079193] RSP: 002b:00007ffee98ba498 EFLAGS: 00010202
[ 1210.080605] RAX: 00007f12de02e0fe RBX: 00007ffee98ba4b0 RCX: 00007ffee98ba590
[ 1210.082383] RDX: 00007f12de02e0fe RSI: 0000000000000001 RDI: 00007ffee98ba4b0
[ 1210.084177] RBP: 0000000000000080 R08: 0000000000000000 R09: 000000000000000a
[ 1210.086134] R10: 00007f12eb61a010 R11: 0000000000000000 R12: 0000000000000080
[ 1210.087850] R13: 0000000000000000 R14: 00007f12ea006770 R15: 00005580adf3abc0
(...snipped...)
[ 1210.640170] MemAlloc: a.out(7523) flags=0x420040 switches=90 uninterruptible dying victim
[ 1210.642426] a.out D11496 7523 7376 0x00100084
[ 1210.643999] Call Trace:
[ 1210.644921] __schedule+0x336/0xe00
[ 1210.646007] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 1210.647328] schedule+0x3d/0x90
[ 1210.648441] schedule_timeout+0x26a/0x510
[ 1210.649619] ? trace_hardirqs_on+0xd/0x10
[ 1210.650792] __down_common+0xfb/0x131
[ 1210.652188] ? _xfs_buf_find+0x2cb/0xc10 [xfs]
[ 1210.653480] __down+0x1d/0x1f
[ 1210.654483] down+0x41/0x50
[ 1210.655462] xfs_buf_lock+0x64/0x370 [xfs]
[ 1210.656618] _xfs_buf_find+0x2cb/0xc10 [xfs]
[ 1210.657823] ? _xfs_buf_find+0xa4/0xc10 [xfs]
[ 1210.659028] xfs_buf_get_map+0x2a/0x480 [xfs]
[ 1210.660284] xfs_buf_read_map+0x2c/0x400 [xfs]
[ 1210.661490] ? del_timer_sync+0xb5/0xe0
[ 1210.662630] xfs_trans_read_buf_map+0x186/0x830 [xfs]
[ 1210.664009] xfs_read_agf+0xc8/0x2b0 [xfs]
[ 1210.665171] xfs_alloc_read_agf+0x7a/0x300 [xfs]
[ 1210.666441] ? xfs_alloc_space_available+0x7b/0x120 [xfs]
[ 1210.667923] xfs_alloc_fix_freelist+0x3bc/0x490 [xfs]
[ 1210.669402] ? __radix_tree_lookup+0x84/0xf0
[ 1210.670645] ? xfs_perag_get+0x1a0/0x310 [xfs]
[ 1210.671949] ? xfs_perag_get+0x5/0x310 [xfs]
[ 1210.673145] xfs_alloc_vextent+0x161/0xda0 [xfs]
[ 1210.674402] xfs_bmap_btalloc+0x46c/0x8b0 [xfs]
[ 1210.675774] ? save_stack_trace+0x1b/0x20
[ 1210.676961] xfs_bmap_alloc+0x17/0x30 [xfs]
[ 1210.678202] xfs_bmapi_write+0x74e/0x11d0 [xfs]
[ 1210.679544] xfs_iomap_write_allocate+0x199/0x3a0 [xfs]
[ 1210.680995] xfs_map_blocks+0x2cc/0x5a0 [xfs]
[ 1210.682245] xfs_do_writepage+0x215/0x920 [xfs]
[ 1210.683742] ? clear_page_dirty_for_io+0xb4/0x310
[ 1210.685125] write_cache_pages+0x2cb/0x6b0
[ 1210.686408] ? xfs_map_blocks+0x5a0/0x5a0 [xfs]
[ 1210.687774] ? xfs_vm_writepages+0x48/0xa0 [xfs]
[ 1210.689111] xfs_vm_writepages+0x6b/0xa0 [xfs]
[ 1210.690529] do_writepages+0x21/0x40
[ 1210.691680] __filemap_fdatawrite_range+0xc6/0x100
[ 1210.693021] filemap_write_and_wait_range+0x2d/0x70
[ 1210.694444] xfs_file_fsync+0x8b/0x310 [xfs]
[ 1210.695728] vfs_fsync_range+0x3d/0xb0
[ 1210.696874] ? __do_page_fault+0x272/0x530
[ 1210.698102] do_fsync+0x3d/0x70
[ 1210.699200] SyS_fsync+0x10/0x20
[ 1210.700267] do_syscall_64+0x6c/0x200
[ 1210.701498] entry_SYSCALL64_slow_path+0x25/0x25
[ 1210.702861] RIP: 0033:0x7f504b072d30
[ 1210.704014] RSP: 002b:00007fffcb8f7898 EFLAGS: 00000246 ORIG_RAX: 000000000000004a
[ 1210.705994] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f504b072d30
[ 1210.707857] RDX: 000000000000000a RSI: 0000000000000000 RDI: 0000000000000003
[ 1210.709647] RBP: 0000000000000003 R08: 00007f504afcc938 R09: 000000000000000e
[ 1210.711632] R10: 00007fffcb8f7620 R11: 0000000000000246 R12: 0000000000400912
[ 1210.713520] R13: 00007fffcb8f79a0 R14: 0000000000000000 R15: 0000000000000000
(...snipped...)
[ 1212.195351] MemAlloc-Info: stalling=32 dying=1 exiting=0 victim=1 oom_count=45896
[ 1242.551629] MemAlloc-Info: stalling=36 dying=1 exiting=0 victim=1 oom_count=45896
(...snipped...)
[ 1245.149165] MemAlloc-Info: stalling=36 dying=1 exiting=0 victim=1 oom_count=45896
[ 1275.319189] MemAlloc-Info: stalling=40 dying=1 exiting=0 victim=1 oom_count=45896
(...snipped...)
[ 1278.241813] MemAlloc-Info: stalling=40 dying=1 exiting=0 victim=1 oom_count=45896
[ 1289.804580] sysrq: SysRq : Kill All Tasks
----------------------------------------
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next prev parent reply other threads:[~2017-02-21 14:37 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-18 13:44 [RFC PATCH 0/2] fix unbounded too_many_isolated Michal Hocko
2017-01-18 13:44 ` [RFC PATCH 1/2] mm, vmscan: account the number of isolated pages per zone Michal Hocko
2017-01-18 14:46 ` Mel Gorman
2017-01-18 15:15 ` Michal Hocko
2017-01-18 15:54 ` Mel Gorman
2017-01-18 16:17 ` Michal Hocko
2017-01-18 17:00 ` Mel Gorman
2017-01-18 17:29 ` Michal Hocko
2017-01-19 10:07 ` Mel Gorman
2017-01-19 11:23 ` Michal Hocko
2017-01-19 13:11 ` Mel Gorman
2017-01-20 13:27 ` Tetsuo Handa
2017-01-21 7:42 ` Tetsuo Handa
2017-01-25 10:15 ` Michal Hocko
2017-01-25 10:19 ` Christoph Hellwig
2017-01-25 10:46 ` Michal Hocko
2017-01-25 11:09 ` Tetsuo Handa
2017-01-25 13:00 ` Michal Hocko
2017-01-27 14:49 ` Michal Hocko
2017-01-28 15:27 ` Tetsuo Handa
2017-01-30 8:55 ` Michal Hocko
2017-02-02 10:14 ` Michal Hocko
2017-02-03 10:57 ` Tetsuo Handa
2017-02-03 14:41 ` Michal Hocko
2017-02-03 14:50 ` Michal Hocko
2017-02-03 17:24 ` Brian Foster
2017-02-06 6:29 ` Tetsuo Handa
2017-02-06 14:35 ` Brian Foster
2017-02-06 14:42 ` Michal Hocko
2017-02-06 15:47 ` Brian Foster
2017-02-07 10:30 ` Tetsuo Handa
2017-02-07 16:54 ` Brian Foster
2017-02-03 14:55 ` Michal Hocko
2017-02-05 10:43 ` Tetsuo Handa
2017-02-06 10:34 ` Michal Hocko
2017-02-06 10:39 ` Michal Hocko
2017-02-07 21:12 ` Michal Hocko
2017-02-08 9:24 ` Peter Zijlstra
2017-02-21 9:40 ` Michal Hocko
2017-02-21 14:35 ` Tetsuo Handa [this message]
2017-02-21 15:53 ` Michal Hocko
2017-02-22 2:02 ` Tetsuo Handa
2017-02-22 7:54 ` Michal Hocko
2017-02-26 6:30 ` Tetsuo Handa
2017-01-31 11:58 ` Michal Hocko
2017-01-31 12:51 ` Christoph Hellwig
2017-01-31 13:21 ` Michal Hocko
2017-01-25 10:33 ` [RFC PATCH 1/2] mm, vmscan: account the number of isolated pagesper zone Tetsuo Handa
2017-01-25 12:34 ` Michal Hocko
2017-01-25 13:13 ` [RFC PATCH 1/2] mm, vmscan: account the number of isolated pages per zone Tetsuo Handa
2017-01-25 9:53 ` Michal Hocko
2017-01-20 6:42 ` Hillf Danton
2017-01-20 9:25 ` Mel Gorman
2017-01-18 13:44 ` [RFC PATCH 2/2] mm, vmscan: do not loop on too_many_isolated for ever Michal Hocko
2017-01-18 14:50 ` Mel Gorman
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