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discussions's Issues

mirrors疑似遭到SYN攻击

[Thu Sep 29 15:24:30 2016] TCP: request_sock_TCP: Possible SYN flooding on port 50120. Sending cookies.  Check SNMP counters.
[Thu Sep 29 15:24:36 2016] TCP: request_sock_TCP: Possible SYN flooding on port 50197. Sending cookies.  Check SNMP counters.
[Thu Sep 29 15:24:39 2016] TCP: request_sock_TCP: Possible SYN flooding on port 50175. Sending cookies.  Check SNMP counters.
[Thu Sep 29 15:24:40 2016] TCP: request_sock_TCP: Possible SYN flooding on port 50197. Sending cookies.  Check SNMP counters.
[Thu Sep 29 15:24:58 2016] TCP: request_sock_TCP: Possible SYN flooding on port 50155. Sending cookies.  Check SNMP counters.
[Thu Sep 29 15:24:59 2016] TCP: request_sock_TCP: Possible SYN flooding on port 50102. Sending cookies.  Check SNMP counters.
[Thu Sep 29 15:25:00 2016] TCP: request_sock_TCP: Possible SYN flooding on port 50185. Sending cookies.  Check SNMP counters.
[Thu Sep 29 15:25:04 2016] TCP: request_sock_TCP: Possible SYN flooding on port 50193. Sending cookies.  Check SNMP counters.
[Thu Sep 29 15:25:43 2016] TCP: request_sock_TCP: Possible SYN flooding on port 50177. Sending cookies.  Check SNMP counters.
[Thu Sep 29 15:25:46 2016] TCP: request_sock_TCP: Possible SYN flooding on port 50179. Sending cookies.  Check SNMP counters.
[Thu Sep 29 15:25:50 2016] TCP: request_sock_TCP: Possible SYN flooding on port 50147. Sending cookies.  Check SNMP counters.

[Thu Sep 29 04:39:56 2016] swapper/12: page allocation failure: order:0, mode:0x2284020(GFP_ATOMIC|__GFP_COMP|__GFP_NOTRACK)
[Thu Sep 29 04:39:56 2016] CPU: 12 PID: 0 Comm: swapper/12 Tainted: G            E   4.7.0-0.bpo.1-amd64 #1 Debian 4.7.2-1~bpo8+1
[Thu Sep 29 04:39:56 2016] Hardware name: Supermicro X8DT6/X8DT6, BIOS 2.0a    09/14/2010
[Thu Sep 29 04:39:56 2016]  0000000000000086 108371cbb69ff114 ffffffff8e317ca5 0000000000000000
[Thu Sep 29 04:39:56 2016]  ffff88043fb03840 ffffffff8e180326 0228402033f3d600 0000000000000000
[Thu Sep 29 04:39:56 2016]  0000000000000000 ffff8802345ba600 002c422085bbf8e8 ffff8802005ba6ac
[Thu Sep 29 04:39:56 2016] Call Trace:
[Thu Sep 29 04:39:56 2016]  <IRQ>  [<ffffffff8e317ca5>] ? dump_stack+0x5c/0x77
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e180326>] ? warn_alloc_failed+0x106/0x170
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e18089e>] ? __alloc_pages_nodemask+0x50e/0xf20
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d65d2>] ? cache_grow_begin+0x82/0x330
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d6dd1>] ? fallback_alloc+0x151/0x1d0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d7852>] ? kmem_cache_alloc+0x202/0x230
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4bff7f>] ? sk_prot_alloc+0x2f/0x130
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4c2fe9>] ? sk_clone_lock+0x19/0x380
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e524191>] ? inet_csk_clone_lock+0x11/0xd0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53eaae>] ? tcp_create_openreq_child+0x1e/0x490
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53cc83>] ? tcp_v4_syn_recv_sock+0x43/0x2e0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53f434>] ? tcp_check_req+0x3a4/0x4f0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5cc650>] ? tcp_v4_inbound_md5_hash+0x67/0x177
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53e66f>] ? tcp_v4_rcv+0x6bf/0xa90
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518aeb>] ? ip_local_deliver_finish+0x8b/0x1c0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518dbb>] ? ip_local_deliver+0x6b/0xf0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518a60>] ? ip_rcv_finish+0x3e0/0x3e0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5190c1>] ? ip_rcv+0x281/0x3b0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518680>] ? inet_del_offload+0x40/0x40
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4da0ae>] ? __netif_receive_skb_core+0x2be/0xa50
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d6d7e>] ? fallback_alloc+0xfe/0x1d0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e553a10>] ? inet_gro_receive+0x1d0/0x240
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4da8cf>] ? netif_receive_skb_internal+0x2f/0xa0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4db81b>] ? napi_gro_receive+0xbb/0x110
[Thu Sep 29 04:39:56 2016]  [<ffffffffc048978c>] ? e1000_clean_rx_irq+0x27c/0x440 [e1000e]
[Thu Sep 29 04:39:56 2016]  [<ffffffffc0490fa4>] ? e1000e_poll+0xb4/0x2d0 [e1000e]
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4db078>] ? net_rx_action+0x238/0x370
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5dd236>] ? __do_softirq+0x106/0x294
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e07fd56>] ? irq_exit+0x86/0x90
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5dcf7f>] ? do_IRQ+0x4f/0xd0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5db0c2>] ? common_interrupt+0x82/0x82
[Thu Sep 29 04:39:56 2016]  <EOI>  [<ffffffff8e49ed8f>] ? cpuidle_enter_state+0x10f/0x260
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e0bbcbe>] ? cpu_startup_entry+0x2be/0x360
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e04e1a1>] ? start_secondary+0x151/0x190
[Thu Sep 29 04:39:56 2016] Mem-Info:
[Thu Sep 29 04:39:56 2016] active_anon:366757 inactive_anon:1565 isolated_anon:0
 active_file:923327 inactive_file:2475791 isolated_file:2
 unevictable:1015 dirty:514989 writeback:3995 unstable:0
 slab_reclaimable:156640 slab_unreclaimable:49527
 mapped:41545 shmem:2409 pagetables:6391 bounce:0
 free:17261 free_pcp:654 free_cma:0
[Thu Sep 29 04:39:56 2016] Node 0 DMA free:15892kB min:84kB low:104kB high:124kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15976kB managed:15892kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 2972 7962 7962 7962
[Thu Sep 29 04:39:56 2016] Node 0 DMA32 free:26076kB min:16612kB low:20764kB high:24916kB active_anon:219888kB inactive_anon:96kB active_file:515072kB inactive_file:2023708kB unevictable:1044kB isolated(anon):0kB isolated(file):0kB present:3120384kB managed:3043884kB mlocked:1044kB dirty:338320kB writeback:3244kB mapped:27236kB shmem:584kB slab_reclaimable:97076kB slab_unreclaimable:21316kB kernel_stack:3984kB pagetables:3244kB unstable:0kB bounce:0kB free_pcp:456kB local_pcp:112kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 4990 4990 4990
[Thu Sep 29 04:39:56 2016] Node 0 Normal free:10460kB min:28064kB low:35080kB high:42096kB active_anon:419244kB inactive_anon:460kB active_file:998040kB inactive_file:3349296kB unevictable:1104kB isolated(anon):0kB isolated(file):8kB present:5242880kB managed:5109852kB mlocked:1104kB dirty:526284kB writeback:11272kB mapped:63568kB shmem:2036kB slab_reclaimable:171420kB slab_unreclaimable:43808kB kernel_stack:8352kB pagetables:7260kB unstable:0kB bounce:0kB free_pcp:904kB local_pcp:116kB free_cma:0kB writeback_tmp:0kB pages_scanned:768 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 0 0 0
[Thu Sep 29 04:39:56 2016] Node 1 Normal free:16616kB min:45340kB low:56672kB high:68004kB active_anon:827896kB inactive_anon:5704kB active_file:2180196kB inactive_file:4530160kB unevictable:1912kB isolated(anon):0kB isolated(file):0kB present:8388608kB managed:8255092kB mlocked:1912kB dirty:1195352kB writeback:1464kB mapped:75376kB shmem:7016kB slab_reclaimable:358064kB slab_unreclaimable:132984kB kernel_stack:13360kB pagetables:15060kB unstable:0kB bounce:0kB free_pcp:1256kB local_pcp:56kB free_cma:0kB writeback_tmp:0kB pages_scanned:1148 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 0 0 0
[Thu Sep 29 04:39:56 2016] Node 0 DMA: 1*4kB (U) 0*8kB 1*16kB (U) 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15892kB
[Thu Sep 29 04:39:56 2016] Node 0 DMA32: 2186*4kB (UME) 717*8kB (UME) 725*16kB (UME) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 26080kB
[Thu Sep 29 04:39:56 2016] Node 0 Normal: 2143*4kB (UM) 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (H) 0*4096kB = 10620kB
[Thu Sep 29 04:39:56 2016] Node 1 Normal: 3674*4kB (M) 1*8kB (H) 1*16kB (H) 0*32kB 1*64kB (H) 1*128kB (H) 1*256kB (H) 1*512kB (H) 1*1024kB (H) 0*2048kB 0*4096kB = 16704kB
[Thu Sep 29 04:39:56 2016] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[Thu Sep 29 04:39:56 2016] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[Thu Sep 29 04:39:56 2016] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[Thu Sep 29 04:39:56 2016] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[Thu Sep 29 04:39:56 2016] 3402124 total pagecache pages
[Thu Sep 29 04:39:56 2016] 0 pages in swap cache
[Thu Sep 29 04:39:56 2016] Swap cache stats: add 0, delete 0, find 0/0
[Thu Sep 29 04:39:56 2016] Free swap  = 0kB
[Thu Sep 29 04:39:56 2016] Total swap = 0kB
[Thu Sep 29 04:39:56 2016] 4191962 pages RAM
[Thu Sep 29 04:39:56 2016] 0 pages HighMem/MovableOnly
[Thu Sep 29 04:39:56 2016] 85782 pages reserved
[Thu Sep 29 04:39:56 2016] 0 pages hwpoisoned
[Thu Sep 29 04:39:56 2016] swapper/12: page allocation failure: order:0, mode:0x2284020(GFP_ATOMIC|__GFP_COMP|__GFP_NOTRACK)
[Thu Sep 29 04:39:56 2016] CPU: 12 PID: 0 Comm: swapper/12 Tainted: G            E   4.7.0-0.bpo.1-amd64 #1 Debian 4.7.2-1~bpo8+1
[Thu Sep 29 04:39:56 2016] Hardware name: Supermicro X8DT6/X8DT6, BIOS 2.0a    09/14/2010
[Thu Sep 29 04:39:56 2016]  0000000000000086 108371cbb69ff114 ffffffff8e317ca5 0000000000000000
[Thu Sep 29 04:39:56 2016]  ffff88043fb03840 ffffffff8e180326 0228402033f3d600 0000000000000000
[Thu Sep 29 04:39:56 2016]  0000000000000000 ffff8802345ba600 002c422085bbf8e8 ffff8802005ba6ac
[Thu Sep 29 04:39:56 2016] Call Trace:
[Thu Sep 29 04:39:56 2016]  <IRQ>  [<ffffffff8e317ca5>] ? dump_stack+0x5c/0x77
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e180326>] ? warn_alloc_failed+0x106/0x170
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e18089e>] ? __alloc_pages_nodemask+0x50e/0xf20
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d65d2>] ? cache_grow_begin+0x82/0x330
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d6dd1>] ? fallback_alloc+0x151/0x1d0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d7852>] ? kmem_cache_alloc+0x202/0x230
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4bff7f>] ? sk_prot_alloc+0x2f/0x130
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4c2fe9>] ? sk_clone_lock+0x19/0x380
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e524191>] ? inet_csk_clone_lock+0x11/0xd0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53eaae>] ? tcp_create_openreq_child+0x1e/0x490
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53cc83>] ? tcp_v4_syn_recv_sock+0x43/0x2e0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53f434>] ? tcp_check_req+0x3a4/0x4f0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5cc650>] ? tcp_v4_inbound_md5_hash+0x67/0x177
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53e66f>] ? tcp_v4_rcv+0x6bf/0xa90
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518aeb>] ? ip_local_deliver_finish+0x8b/0x1c0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518dbb>] ? ip_local_deliver+0x6b/0xf0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518a60>] ? ip_rcv_finish+0x3e0/0x3e0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5190c1>] ? ip_rcv+0x281/0x3b0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518680>] ? inet_del_offload+0x40/0x40
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4da0ae>] ? __netif_receive_skb_core+0x2be/0xa50
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d6d7e>] ? fallback_alloc+0xfe/0x1d0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e553a10>] ? inet_gro_receive+0x1d0/0x240
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4da8cf>] ? netif_receive_skb_internal+0x2f/0xa0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4db81b>] ? napi_gro_receive+0xbb/0x110
[Thu Sep 29 04:39:56 2016]  [<ffffffffc048978c>] ? e1000_clean_rx_irq+0x27c/0x440 [e1000e]
[Thu Sep 29 04:39:56 2016]  [<ffffffffc0490fa4>] ? e1000e_poll+0xb4/0x2d0 [e1000e]
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4db078>] ? net_rx_action+0x238/0x370
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5dd236>] ? __do_softirq+0x106/0x294
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e07fd56>] ? irq_exit+0x86/0x90
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5dcf7f>] ? do_IRQ+0x4f/0xd0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5db0c2>] ? common_interrupt+0x82/0x82
[Thu Sep 29 04:39:56 2016]  <EOI>  [<ffffffff8e49ed8f>] ? cpuidle_enter_state+0x10f/0x260
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e0bbcbe>] ? cpu_startup_entry+0x2be/0x360
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e04e1a1>] ? start_secondary+0x151/0x190
[Thu Sep 29 04:39:56 2016] Mem-Info:
[Thu Sep 29 04:39:56 2016] active_anon:366757 inactive_anon:1565 isolated_anon:0
 active_file:923327 inactive_file:2475791 isolated_file:2
 unevictable:1015 dirty:514989 writeback:3995 unstable:0
 slab_reclaimable:156640 slab_unreclaimable:49527
 mapped:41545 shmem:2409 pagetables:6391 bounce:0
 free:17261 free_pcp:654 free_cma:0
[Thu Sep 29 04:39:56 2016] Node 0 DMA free:15892kB min:84kB low:104kB high:124kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15976kB managed:15892kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 2972 7962 7962 7962
[Thu Sep 29 04:39:56 2016] Node 0 DMA32 free:26076kB min:16612kB low:20764kB high:24916kB active_anon:219888kB inactive_anon:96kB active_file:515072kB inactive_file:2023708kB unevictable:1044kB isolated(anon):0kB isolated(file):0kB present:3120384kB managed:3043884kB mlocked:1044kB dirty:338320kB writeback:3244kB mapped:27236kB shmem:584kB slab_reclaimable:97076kB slab_unreclaimable:21316kB kernel_stack:3984kB pagetables:3244kB unstable:0kB bounce:0kB free_pcp:456kB local_pcp:112kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 4990 4990 4990
[Thu Sep 29 04:39:56 2016] Node 0 Normal free:10460kB min:28064kB low:35080kB high:42096kB active_anon:419244kB inactive_anon:460kB active_file:998040kB inactive_file:3349296kB unevictable:1104kB isolated(anon):0kB isolated(file):8kB present:5242880kB managed:5109852kB mlocked:1104kB dirty:526284kB writeback:11272kB mapped:63568kB shmem:2036kB slab_reclaimable:171420kB slab_unreclaimable:43808kB kernel_stack:8352kB pagetables:7260kB unstable:0kB bounce:0kB free_pcp:904kB local_pcp:116kB free_cma:0kB writeback_tmp:0kB pages_scanned:768 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 0 0 0
[Thu Sep 29 04:39:56 2016] Node 1 Normal free:16616kB min:45340kB low:56672kB high:68004kB active_anon:827896kB inactive_anon:5704kB active_file:2180196kB inactive_file:4530160kB unevictable:1912kB isolated(anon):0kB isolated(file):0kB present:8388608kB managed:8255092kB mlocked:1912kB dirty:1195352kB writeback:1464kB mapped:75376kB shmem:7016kB slab_reclaimable:358064kB slab_unreclaimable:132984kB kernel_stack:13360kB pagetables:15060kB unstable:0kB bounce:0kB free_pcp:1256kB local_pcp:56kB free_cma:0kB writeback_tmp:0kB pages_scanned:1148 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 0 0 0
[Thu Sep 29 04:39:56 2016] Node 0 DMA: 1*4kB (U) 0*8kB 1*16kB (U) 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15892kB
[Thu Sep 29 04:39:56 2016] Node 0 DMA32: 2186*4kB (UME) 717*8kB (UME) 725*16kB (UME) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 26080kB
[Thu Sep 29 04:39:56 2016] Node 0 Normal: 2143*4kB (UM) 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (H) 0*4096kB = 10620kB
[Thu Sep 29 04:39:56 2016] Node 1 Normal: 3674*4kB (M) 1*8kB (H) 1*16kB (H) 0*32kB 1*64kB (H) 1*128kB (H) 1*256kB (H) 1*512kB (H) 1*1024kB (H) 0*2048kB 0*4096kB = 16704kB
[Thu Sep 29 04:39:56 2016] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[Thu Sep 29 04:39:56 2016] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[Thu Sep 29 04:39:56 2016] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[Thu Sep 29 04:39:56 2016] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[Thu Sep 29 04:39:56 2016] 3402124 total pagecache pages
[Thu Sep 29 04:39:56 2016] 0 pages in swap cache
[Thu Sep 29 04:39:56 2016] Swap cache stats: add 0, delete 0, find 0/0
[Thu Sep 29 04:39:56 2016] Free swap  = 0kB
[Thu Sep 29 04:39:56 2016] Total swap = 0kB
[Thu Sep 29 04:39:56 2016] 4191962 pages RAM
[Thu Sep 29 04:39:56 2016] 0 pages HighMem/MovableOnly
[Thu Sep 29 04:39:56 2016] 85782 pages reserved
[Thu Sep 29 04:39:56 2016] 0 pages hwpoisoned
[Thu Sep 29 04:39:56 2016] swapper/12: page allocation failure: order:0, mode:0x2284020(GFP_ATOMIC|__GFP_COMP|__GFP_NOTRACK)
[Thu Sep 29 04:39:56 2016] CPU: 12 PID: 0 Comm: swapper/12 Tainted: G            E   4.7.0-0.bpo.1-amd64 #1 Debian 4.7.2-1~bpo8+1
[Thu Sep 29 04:39:56 2016] Hardware name: Supermicro X8DT6/X8DT6, BIOS 2.0a    09/14/2010
[Thu Sep 29 04:39:56 2016]  0000000000000086 108371cbb69ff114 ffffffff8e317ca5 0000000000000000
[Thu Sep 29 04:39:56 2016]  ffff88043fb03840 ffffffff8e180326 0228402033f3d600 0000000000000000
[Thu Sep 29 04:39:56 2016]  0000000000000000 ffff8802345ba600 002c4220fe39c2e8 ffff8802005ba6ac
[Thu Sep 29 04:39:56 2016] Call Trace:
[Thu Sep 29 04:39:56 2016]  <IRQ>  [<ffffffff8e317ca5>] ? dump_stack+0x5c/0x77
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e180326>] ? warn_alloc_failed+0x106/0x170
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e18089e>] ? __alloc_pages_nodemask+0x50e/0xf20
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d65d2>] ? cache_grow_begin+0x82/0x330
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d6dd1>] ? fallback_alloc+0x151/0x1d0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d7852>] ? kmem_cache_alloc+0x202/0x230
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4bff7f>] ? sk_prot_alloc+0x2f/0x130
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4c2fe9>] ? sk_clone_lock+0x19/0x380
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e524191>] ? inet_csk_clone_lock+0x11/0xd0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53eaae>] ? tcp_create_openreq_child+0x1e/0x490
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53cc83>] ? tcp_v4_syn_recv_sock+0x43/0x2e0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53f434>] ? tcp_check_req+0x3a4/0x4f0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5cc650>] ? tcp_v4_inbound_md5_hash+0x67/0x177
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53e66f>] ? tcp_v4_rcv+0x6bf/0xa90
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518aeb>] ? ip_local_deliver_finish+0x8b/0x1c0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518dbb>] ? ip_local_deliver+0x6b/0xf0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518a60>] ? ip_rcv_finish+0x3e0/0x3e0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5190c1>] ? ip_rcv+0x281/0x3b0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518680>] ? inet_del_offload+0x40/0x40
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4da0ae>] ? __netif_receive_skb_core+0x2be/0xa50
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d6d7e>] ? fallback_alloc+0xfe/0x1d0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e553a10>] ? inet_gro_receive+0x1d0/0x240
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4da8cf>] ? netif_receive_skb_internal+0x2f/0xa0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4db81b>] ? napi_gro_receive+0xbb/0x110
[Thu Sep 29 04:39:56 2016]  [<ffffffffc048978c>] ? e1000_clean_rx_irq+0x27c/0x440 [e1000e]
[Thu Sep 29 04:39:56 2016]  [<ffffffffc0490fa4>] ? e1000e_poll+0xb4/0x2d0 [e1000e]
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4db078>] ? net_rx_action+0x238/0x370
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5dd236>] ? __do_softirq+0x106/0x294
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e07fd56>] ? irq_exit+0x86/0x90
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5dcf7f>] ? do_IRQ+0x4f/0xd0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5db0c2>] ? common_interrupt+0x82/0x82
[Thu Sep 29 04:39:56 2016]  <EOI>  [<ffffffff8e49ed8f>] ? cpuidle_enter_state+0x10f/0x260
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e0bbcbe>] ? cpu_startup_entry+0x2be/0x360
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e04e1a1>] ? start_secondary+0x151/0x190
[Thu Sep 29 04:39:56 2016] Mem-Info:
[Thu Sep 29 04:39:56 2016] active_anon:366757 inactive_anon:1565 isolated_anon:0
 active_file:923327 inactive_file:2475736 isolated_file:2
 unevictable:1015 dirty:514989 writeback:3983 unstable:0
 slab_reclaimable:156640 slab_unreclaimable:49515
 mapped:41545 shmem:2409 pagetables:6391 bounce:0
 free:17261 free_pcp:814 free_cma:0
[Thu Sep 29 04:39:56 2016] Node 0 DMA free:15892kB min:84kB low:104kB high:124kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15976kB managed:15892kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 2972 7962 7962 7962
[Thu Sep 29 04:39:56 2016] Node 0 DMA32 free:26076kB min:16612kB low:20764kB high:24916kB active_anon:219888kB inactive_anon:96kB active_file:515072kB inactive_file:2023708kB unevictable:1044kB isolated(anon):0kB isolated(file):0kB present:3120384kB managed:3043884kB mlocked:1044kB dirty:338320kB writeback:3224kB mapped:27236kB shmem:584kB slab_reclaimable:97076kB slab_unreclaimable:21316kB kernel_stack:3984kB pagetables:3244kB unstable:0kB bounce:0kB free_pcp:588kB local_pcp:116kB free_cma:0kB writeback_tmp:0kB pages_scanned:128 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 4990 4990 4990
[Thu Sep 29 04:39:56 2016] Node 0 Normal free:10460kB min:28064kB low:35080kB high:42096kB active_anon:419244kB inactive_anon:460kB active_file:998040kB inactive_file:3349168kB unevictable:1104kB isolated(anon):0kB isolated(file):8kB present:5242880kB managed:5109852kB mlocked:1104kB dirty:526284kB writeback:11256kB mapped:63568kB shmem:2036kB slab_reclaimable:171420kB slab_unreclaimable:43808kB kernel_stack:8352kB pagetables:7260kB unstable:0kB bounce:0kB free_pcp:1032kB local_pcp:116kB free_cma:0kB writeback_tmp:0kB pages_scanned:896 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 0 0 0
[Thu Sep 29 04:39:56 2016] Node 1 Normal free:16616kB min:45340kB low:56672kB high:68004kB active_anon:827896kB inactive_anon:5704kB active_file:2180196kB inactive_file:4529940kB unevictable:1912kB isolated(anon):0kB isolated(file):0kB present:8388608kB managed:8255092kB mlocked:1912kB dirty:1195352kB writeback:1452kB mapped:75376kB shmem:7016kB slab_reclaimable:358064kB slab_unreclaimable:132936kB kernel_stack:13360kB pagetables:15060kB unstable:0kB bounce:0kB free_pcp:1636kB local_pcp:112kB free_cma:0kB writeback_tmp:0kB pages_scanned:604 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 0 0 0
[Thu Sep 29 04:39:56 2016] Node 0 DMA: 1*4kB (U) 0*8kB 1*16kB (U) 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15892kB
[Thu Sep 29 04:39:56 2016] Node 0 DMA32: 2186*4kB (UME) 717*8kB (UME) 725*16kB (UME) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 26080kB
[Thu Sep 29 04:39:56 2016] Node 0 Normal: 2143*4kB (UM) 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (H) 0*4096kB = 10620kB
[Thu Sep 29 04:39:56 2016] Node 1 Normal: 3676*4kB (UM) 1*8kB (H) 1*16kB (H) 0*32kB 1*64kB (H) 1*128kB (H) 1*256kB (H) 1*512kB (H) 1*1024kB (H) 0*2048kB 0*4096kB = 16712kB
[Thu Sep 29 04:39:56 2016] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[Thu Sep 29 04:39:56 2016] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[Thu Sep 29 04:39:56 2016] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[Thu Sep 29 04:39:56 2016] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[Thu Sep 29 04:39:56 2016] 3402037 total pagecache pages
[Thu Sep 29 04:39:56 2016] 0 pages in swap cache
[Thu Sep 29 04:39:56 2016] Swap cache stats: add 0, delete 0, find 0/0
[Thu Sep 29 04:39:56 2016] Free swap  = 0kB
[Thu Sep 29 04:39:56 2016] Total swap = 0kB
[Thu Sep 29 04:39:56 2016] 4191962 pages RAM
[Thu Sep 29 04:39:56 2016] 0 pages HighMem/MovableOnly
[Thu Sep 29 04:39:56 2016] 85782 pages reserved
[Thu Sep 29 04:39:56 2016] 0 pages hwpoisoned
[Thu Sep 29 04:39:56 2016] swapper/12: page allocation failure: order:0, mode:0x2284020(GFP_ATOMIC|__GFP_COMP|__GFP_NOTRACK)
[Thu Sep 29 04:39:56 2016] CPU: 12 PID: 0 Comm: swapper/12 Tainted: G            E   4.7.0-0.bpo.1-amd64 #1 Debian 4.7.2-1~bpo8+1
[Thu Sep 29 04:39:56 2016] Hardware name: Supermicro X8DT6/X8DT6, BIOS 2.0a    09/14/2010
[Thu Sep 29 04:39:56 2016]  0000000000000086 108371cbb69ff114 ffffffff8e317ca5 0000000000000000
[Thu Sep 29 04:39:56 2016]  ffff88043fb03840 ffffffff8e180326 0228402033f3d600 0000000000000000
[Thu Sep 29 04:39:56 2016]  0000000000000000 ffff8802345ba600 002c4220fe39c2e8 ffff8802005ba6ac
[Thu Sep 29 04:39:56 2016] Call Trace:
[Thu Sep 29 04:39:56 2016]  <IRQ>  [<ffffffff8e317ca5>] ? dump_stack+0x5c/0x77
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e180326>] ? warn_alloc_failed+0x106/0x170
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e18089e>] ? __alloc_pages_nodemask+0x50e/0xf20
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d65d2>] ? cache_grow_begin+0x82/0x330
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d6dd1>] ? fallback_alloc+0x151/0x1d0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d7852>] ? kmem_cache_alloc+0x202/0x230
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4bff7f>] ? sk_prot_alloc+0x2f/0x130
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4c2fe9>] ? sk_clone_lock+0x19/0x380
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e524191>] ? inet_csk_clone_lock+0x11/0xd0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53eaae>] ? tcp_create_openreq_child+0x1e/0x490
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53cc83>] ? tcp_v4_syn_recv_sock+0x43/0x2e0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53f434>] ? tcp_check_req+0x3a4/0x4f0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5cc650>] ? tcp_v4_inbound_md5_hash+0x67/0x177
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e53e66f>] ? tcp_v4_rcv+0x6bf/0xa90
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518aeb>] ? ip_local_deliver_finish+0x8b/0x1c0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518dbb>] ? ip_local_deliver+0x6b/0xf0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518a60>] ? ip_rcv_finish+0x3e0/0x3e0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5190c1>] ? ip_rcv+0x281/0x3b0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e518680>] ? inet_del_offload+0x40/0x40
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4da0ae>] ? __netif_receive_skb_core+0x2be/0xa50
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e1d6d7e>] ? fallback_alloc+0xfe/0x1d0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e553a10>] ? inet_gro_receive+0x1d0/0x240
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4da8cf>] ? netif_receive_skb_internal+0x2f/0xa0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4db81b>] ? napi_gro_receive+0xbb/0x110
[Thu Sep 29 04:39:56 2016]  [<ffffffffc048978c>] ? e1000_clean_rx_irq+0x27c/0x440 [e1000e]
[Thu Sep 29 04:39:56 2016]  [<ffffffffc0490fa4>] ? e1000e_poll+0xb4/0x2d0 [e1000e]
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e4db078>] ? net_rx_action+0x238/0x370
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5dd236>] ? __do_softirq+0x106/0x294
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e07fd56>] ? irq_exit+0x86/0x90
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5dcf7f>] ? do_IRQ+0x4f/0xd0
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e5db0c2>] ? common_interrupt+0x82/0x82
[Thu Sep 29 04:39:56 2016]  <EOI>  [<ffffffff8e49ed8f>] ? cpuidle_enter_state+0x10f/0x260
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e0bbcbe>] ? cpu_startup_entry+0x2be/0x360
[Thu Sep 29 04:39:56 2016]  [<ffffffff8e04e1a1>] ? start_secondary+0x151/0x190
[Thu Sep 29 04:39:56 2016] Mem-Info:
[Thu Sep 29 04:39:56 2016] active_anon:366757 inactive_anon:1565 isolated_anon:0
 active_file:923327 inactive_file:2475640 isolated_file:2
 unevictable:1015 dirty:514989 writeback:3983 unstable:0
 slab_reclaimable:156640 slab_unreclaimable:49515
 mapped:41545 shmem:2409 pagetables:6391 bounce:0
 free:17394 free_pcp:637 free_cma:0
[Thu Sep 29 04:39:56 2016] Node 0 DMA free:15892kB min:84kB low:104kB high:124kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15976kB managed:15892kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 2972 7962 7962 7962
[Thu Sep 29 04:39:56 2016] Node 0 DMA32 free:26076kB min:16612kB low:20764kB high:24916kB active_anon:219888kB inactive_anon:96kB active_file:515072kB inactive_file:2023708kB unevictable:1044kB isolated(anon):0kB isolated(file):0kB present:3120384kB managed:3043884kB mlocked:1044kB dirty:338320kB writeback:3224kB mapped:27236kB shmem:584kB slab_reclaimable:97076kB slab_unreclaimable:21316kB kernel_stack:3984kB pagetables:3244kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:116kB free_cma:0kB writeback_tmp:0kB pages_scanned:128 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 4990 4990 4990
[Thu Sep 29 04:39:56 2016] Node 0 Normal free:10460kB min:28064kB low:35080kB high:42096kB active_anon:419244kB inactive_anon:460kB active_file:998040kB inactive_file:3349168kB unevictable:1104kB isolated(anon):0kB isolated(file):8kB present:5242880kB managed:5109852kB mlocked:1104kB dirty:526284kB writeback:11256kB mapped:63568kB shmem:2036kB slab_reclaimable:171420kB slab_unreclaimable:43808kB kernel_stack:8352kB pagetables:7260kB unstable:0kB bounce:0kB free_pcp:1024kB local_pcp:116kB free_cma:0kB writeback_tmp:0kB pages_scanned:24 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 0 0 0
[Thu Sep 29 04:39:56 2016] Node 1 Normal free:17716kB min:45340kB low:56672kB high:68004kB active_anon:827896kB inactive_anon:5704kB active_file:2180196kB inactive_file:4529684kB unevictable:1912kB isolated(anon):0kB isolated(file):0kB present:8388608kB managed:8255092kB mlocked:1912kB dirty:1195352kB writeback:1452kB mapped:75376kB shmem:7016kB slab_reclaimable:358064kB slab_unreclaimable:132936kB kernel_stack:13360kB pagetables:15060kB unstable:0kB bounce:0kB free_pcp:940kB local_pcp:112kB free_cma:0kB writeback_tmp:0kB pages_scanned:128 all_unreclaimable? no
[Thu Sep 29 04:39:56 2016] lowmem_reserve[]: 0 0 0 0 0
[Thu Sep 29 04:39:56 2016] Node 0 DMA: 1*4kB (U) 0*8kB 1*16kB (U) 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15892kB
[Thu Sep 29 04:39:56 2016] Node 0 DMA32: 2187*4kB (UME) 717*8kB (UME) 725*16kB (UME) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 26084kB
[Thu Sep 29 04:39:56 2016] Node 0 Normal: 2271*4kB (UM) 1*8kB (M) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (H) 0*4096kB = 11140kB
[Thu Sep 29 04:39:56 2016] Node 1 Normal: 4077*4kB (UM) 5*8kB (MH) 1*16kB (H) 0*32kB 1*64kB (H) 1*128kB (H) 1*256kB (H) 1*512kB (H) 1*1024kB (H) 0*2048kB 0*4096kB = 18348kB
[Thu Sep 29 04:39:56 2016] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[Thu Sep 29 04:39:56 2016] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[Thu Sep 29 04:39:56 2016] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[Thu Sep 29 04:39:56 2016] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[Thu Sep 29 04:39:56 2016] 3401973 total pagecache pages
[Thu Sep 29 04:39:56 2016] 0 pages in swap cache
[Thu Sep 29 04:39:56 2016] Swap cache stats: add 0, delete 0, find 0/0
[Thu Sep 29 04:39:56 2016] Free swap  = 0kB
[Thu Sep 29 04:39:56 2016] Total swap = 0kB
[Thu Sep 29 04:39:56 2016] 4191962 pages RAM
[Thu Sep 29 04:39:56 2016] 0 pages HighMem/MovableOnly
[Thu Sep 29 04:39:56 2016] 85782 pages reserved
[Thu Sep 29 04:39:56 2016] 0 pages hwpoisoned

mirrors reboot

feature：bcache
bugfix: #6 #7 #9

@knight42 @Alkaid-Benetnash @zhsj @hosiet 大家看看有没有什么问题？

@knight42 找个时间大家去趟机房？联系一下jameszhang ？

修复vSphere虚拟机无法访问gateway-el被映射端口

当10.254.0.0/24的虚拟机访问gateway-el的公网地址时，由于bridge的保护机制，会将包丢弃。
导致内网主机无法使用直接访问公网服务（如GitLab）。

AOSP故障

多名来自servers.u.o的用户反馈AOSP故障

LUGI VPN使用LDAP认证

邮件被判定为 SPAM

Long Term Issue.

来自 ustclug.org 的全部邮件被 Gmail 判为垃圾邮件

mirrors启动rsync时出现负载尖峰

如图所示：

负载尖峰时期，各种服务失去响应（如nginx、rsync、ftp、ganglia-monitor），进程进入D状态。

salt重启后引导失败，疑似磁盘错误

CTAN 5天未同步

上次更新：2016-08-19 10:05:48

Mirrors 404 重定向问题

不要把所有的 404 都重定向到 backup.mirrors，比如
http://mirrors.ustc.edu.cn/debian/dists/jessie/main/binary-amd64/Packages
这样的链接就不应该302 跳转。

@knight42 好像你的 lua 脚本的锅。。。。

Failed to set cpu.cfs_quota_us

Aug 24 17:10:24 mirrors systemd[1]: Failed to set cpu.cfs_quota_us on /system.slice/var-lib-docker-aufs-mnt-4c1ef344d50b1eb114565c5634ec48f8d935754a2f2c1b67e3d986880d96074e.mount: Permission denied

dns-m.lug.u.e.c不响应dnssec查询

$ dig +dnssec @202.38.95.110 git.ustclug.org

; <<>> DiG 9.8.3-P1 <<>> +dnssec @202.38.95.110 git.ustclug.org
; (1 server found)
;; global options: +cmd
;; connection timed out; no servers could be reached

对照：

$ dig +dnssec @202.141.160.97 git.ustclug.org

; <<>> DiG 9.8.3-P1 <<>> +dnssec @202.141.160.97 git.ustclug.org
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8589
;; flags: qr aa rd; QUERY: 1, ANSWER: 4, AUTHORITY: 3, ADDITIONAL: 7
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 4096
;; QUESTION SECTION:
;git.ustclug.org.       IN  A

;; ANSWER SECTION:
git.ustclug.org.    600 IN  A   202.141.162.123
git.ustclug.org.    600 IN  A   202.38.93.153
git.ustclug.org.    600 IN  A   202.141.176.93
git.ustclug.org.    600 IN  RRSIG   A 8 3 600 20161111062306 20161012054644 24873 ustclug.org. Mjz1aYYEZdRlPt0SdjKetllEob7MuDWn3mjFJV2iPwbL2aKlJ5J+cdK3 mewdUovZcN2Wd59VnurvFa59r6elRIl8rBhRI2E/NYuFz17oy63IfYMB ljHdYL02pLOv8REKqWMaOIKzhCWsK90Mq8f70/oFpoXooqc9LbD+7PZu pCQyneyyTRoaE0BHQ3gF5iPe7YN0cyCuBCbcj0uLY3caxkC1P5/4eYTX RC515D/sBea7mbmQ0b1BGTwVfcT2RcMlN8HKl95z8EbOnfvlIsezkb3+ MCw8ng0xKgp9e0fHfOgyLqMNI2i8qAy1FAwjeyJvth6+DQNn/hXaaXAZ maJhNg==

;; AUTHORITY SECTION:
ustclug.org.        600 IN  NS  dns-m.lug.ustc.edu.cn.
ustclug.org.        600 IN  NS  dns.lug.ustc.edu.cn.
ustclug.org.        600 IN  RRSIG   NS 8 2 600 20161109091709 20161010090254 24873 ustclug.org. YLkqD121mHKaoPcab0FigcGCcRsiumffb6KcnEjXxwYaemwR/FL5ls7A 24PbhNK/hdjDyv/zrmCW/Lw3Wo9C+C7TsmVpjvPQ9t+FlVHaS0pnI+qi zjZw0TkeUuOQtyMyyTyxaxjRXyWQ/zv+YkOBQMVV0ys+LSvaPKU/xrG1 AQLWFFkPTCJobUNiBUxefWygbPhfis2vWgvRWRBmJ00KLqC/xfehTaTj QtXCN+bXrM+TRSS3geszsx9NDLMtLOd/910tO7SridpTaTY1UHyPkaW4 2aiLkBVlSDcFBXBk7E7T6DU1zD8L3cIMm/qq22boFy2j7uyL+XB2ySSK I/Jh6g==

;; ADDITIONAL SECTION:
dns.lug.ustc.edu.cn.    600 IN  A   202.141.160.97
dns-m.lug.ustc.edu.cn.  600 IN  A   202.141.160.110
dns-m.lug.ustc.edu.cn.  600 IN  A   202.141.176.110
dns-m.lug.ustc.edu.cn.  600 IN  A   202.38.95.110
dns.lug.ustc.edu.cn.    600 IN  AAAA    2001:da8:d800:f001::5353
dns-m.lug.ustc.edu.cn.  600 IN  AAAA    2001:da8:d800:95::110

;; Query time: 7 msec
;; SERVER: 202.141.160.97#53(202.141.160.97)
;; WHEN: Fri Oct 28 07:18:27 2016
;; MSG SIZE  rcvd: 863

@pudh4418 这是feature还是bug呢？

swarm.s.ustclug.org缺少HostCertificate(SSH)

@knight42

servers.u.o迁移至docker2

考虑到最近blog不太稳定，且无法安装插件（#43）。

计划将servers.u.o迁移至docker2。独立docker。

[email protected]收到[email protected]转发的邮件

导致[email protected]的收件箱中存在两封一模一样的邮件

lug.ustc.edu.cn/blog迁移至USTC blog

目前LUG新闻站与wiki放在同一个域名下。

我想将WordPress与dokuwiki分离开，以降低系统耦合度。dokuwiki使用docker管理，WordPress则迁移至USTCblog。

同时启用新域名news.ustclug.org，lug.ustc.edu.cn/blog则301跳转到news.ustclug.org。

大家觉得如何？

docker容器迁移至内网

扩展了内网的地址空间（10.254.0.0/21），拟将10.254.1.0/24分配给docker容器。
拟用三级域名 .d.ustclug.org记录docker容器的IP地址。

优势：

docker容器拥有固定的内网IP，可以与内网中任意主机互通。
docker容器可以方便得迁移到任意一台docker母机中，而不需要修改反代（或端口映射）规则。
容器默认路由走gw-el，同时保持母机路由不变

缺陷：

gateway-el单点故障

第一批迁移的docker：

ganglia
light (light-squid, light-web, light-freeradius, light-mysql)
telegram-web
lugwiki

创建macvlan网络：

docker network create -d macvlan --subnet=10.254.0.0/21 --ip-range=10.254.1.0/24 --gateway=10.254.0.254 -o parent=ustclug lugi

Change "AnthonOS" in Mirror Status to "AOSC OS"

AnthonOS was renamed to AOSC OS as of September, 2014.

mirrors 考虑使用 rsync-huai

如题。TUNA 为了解决 rsync 服务端的固有问题 fork 了一份 rsync：

https://github.com/tuna/rsync

据说效果明显。

mirrors 硬件升级？

专门开一个 issue 跟踪近期到中期的硬件升级问题。

之前我和 Aron Xu 谈过 Canonical 赞助 mirrors 服务器部分硬件（特指内存，起源是 Aron 安利 ZFS，但是 ZFS 是内存消耗大户），这件事情正在 C 社内部跟进，暂时没回音。

mirrors 年头也不小了，有必要更新其它硬件吗？如有，应该如何下手呢？不知道现在经费有多少。

Can you share your Status page source?

Hi,

I'm running a mirror in Vietnam and I'd be thrilled to build the same status page as you have
http://mirrors.ustc.edu.cn/status/

How did you make it? Can you share the code may be?

Thank you

mirrors帮助按钮消失

诸多源的help链接消失。

怀疑与近期lug.ustc.edu.cn变卡有关

containerd: notify OOM events

Aug 24 17:00:05 mirrors dockerd[1927]: time="2016-08-24T17:00:05.287701711+08:00" level=error msg="containerd: notify OOM events" error="cgroup path for memory not found"

完善各项服务的备份设施

目前，我们多项服务的备份功能未能生效。一旦存储失效，将没有任何途径恢复服务。

link #13

blog：配置、数据、数据库（rb-backup失效）
GitLab：数据、数据库
radius：数据库
postfix：配置（建议用git管理）
salt-master：私钥、sls（建议用git管理）、pillar
LDAP：配置、数据库
BBS：数据、数据库
wiki：数据、数据库（blog）
gateway-el：网络配置（建议git）

[email protected]列表失效

用于转发[email protected]的邮件
@knight42

SSL 证书迁移到 Let's Encrypt

鉴于 Let's Encrypt 不支持泛域名，我们需要整理下我们总共多少域名，分别在哪些 nginx前端上，有没有不经过 nginx 前端的？

nginx at mirrors
- 主域名
  - mirrors.ustc.edu.cn
- 线路划分
  - ipv4.mirrors.ustc.edu.cn
  - ipv6.mirrors.ustc.edu.cn
  - telecom.mirrors.ustc.edu.cn
  - mobile.mirrors.ustc.edu.cn
  - cernet.mirrors.ustc.edu.cn
  - mirrors1.ustc.edu.cn
  - mirrors2.ustc.edu.cn
  - mirrors3.ustc.edu.cn
  - mirrors4.ustc.edu.cn
  - mirrors6.ustc.edu.cn
- ISO 重定向的
  - iso.mirrors.ustc.edu.cn
  - verify.iso.mirrors.ustc.edu.cn
- Webhook
  - webhook.mirrors.ustc.edu.cn
- 各源单独域名
  - openwrt.mirrors.ustc.edu.cn
  - pypi.mirrors.ustc.edu.cn
  - npm.mirrors.ustc.edu.cn
  - npmreg.mirrors.ustc.edu.cn
  - docker.mirrors.ustc.edu.cn
  - arch-arm.mirrors.ustc.edu.cn
  - crates.mirrors.ustc.edu.cn
  - archlinuxcn.mirrors.ustc.edu.cn
- 其他
  - thunder.mirrors.ustc.edu.cn
  - ftp.cn.debian.org
nginx at docker2
- ftp.ustclug.org
- registry.ustclug.org(not public)
- sks.ustclug.org
nginx at revproxy-el
- 各服务
  - 204.ustclug.org
  - auth.ustclug.org
  - bbs.ustclug.org
  - calendar.ustclug.org
  - emergency.ustclug.org
  - getvpn.ustclug.org
  - gitlab.lug.ustc.edu.cn
  - git.ustclug.org
  - light.ustclug.org
  - lug.ustc.edu.cn
  - status.ustclug.org
  - ustc.life
  - ustclug.org
  - www.ustclug.org
- 外部反向代理
  - npm.proxy.ustclug.org
  - npmreg.proxy.ustclug.org
  - cloudera.proxy.ustclug.org
  - elastic.proxy.ustclug.org
  - openwrt.proxy.ustclug.org
  - lede.proxy.ustclug.org
  - launchpad.proxy.ustclug.org
  - crates-io.proxy.ustclug.org
  - fonts.proxy.ustclug.org
  - ajax.proxy.ustclug.org
  - google-themes.proxy.ustclug.org
  - fonts-gstatic.proxy.ustclug.org
  - storage-googleapis.proxy.ustclug.org
  - gerrit-googlesource.proxy.ustclug.org
  - gravatar.proxy.ustclug.org
- 反向代理旧域名
  - storage-googleapis.lug.ustc.edu.cn
  - google-themes.lug.ustc.edu.cn
  - gerrit-googlesource.lug.ustc.edu.cn
  - fonts.lug.ustc.edu.cn
  - fonts-gstatic.lug.ustc.edu.cn
  - ajax.lug.ustc.edu.cn

ustclug.org证书Chrome不再支持

*.ustclug.org的证书由StartCom Class 2 Primary Intermediate Server CA签发，StartCom Class 2 Primary Intermediate Server CA使用了sha-1，所以尽管ustclug.org使用了sha-256，但其签发者是sha-1，所以在Chrome 42上，访问ustclug.org已经是“红锁”了。

*.lug.ustc.edu.cn由于其过期时间早，所以仍旧是“绿锁”。

dirperm1 breaks the protection

Aug 24 17:10:05 mirrors kernel: [35882343.990374] aufs au_opts_verify:1570:dockerd[1948]: dirperm1 breaks the protection by the permission bits on the lower branch

将历史邮件中的镜像请求整理至GitHub

PXE 菜单出错

只剩Installers的菜单了。

VDP备份失效

@knight42

ubuntu-ports同步失败

$ ustcmirror sync ubuntu-ports
Traceback (most recent call last):
  File "/usr/local/bin/ustcmirror", line 9, in <module>
    load_entry_point('ustcmirror==0.1.0', 'console_scripts', 'ustcmirror')()
  File "/home/mirror/scripts/docker-ustcmirror/ustcmirror/__main__.py", line 364, in main
    manager.sync(get('name'))
  File "/home/mirror/scripts/docker-ustcmirror/ustcmirror/__main__.py", line 154, in sync
    raise KeyError(name)
KeyError: 'ubuntu-ports'

lugwiki打开速度缓慢

lugwiki首页打开时间超过5秒（用curl测试）
经调试发现：PHP会动态请求gravatar.com的头像。严重拖慢了加载速度。

@hosiet 有办法关掉这个功能吗？或者为头像文件添加缓存？

related: #20

Filesystem      Size  Used Avail Use% Mounted on
/dev/sda2        20G   18G     0 100% /
udev             10M     0   10M   0% /dev
tmpfs           402M   41M  362M  11% /run
tmpfs          1005M   12K 1005M   1% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs          1005M     0 1005M   0% /sys/fs/cgroup
/dev/sda1       922M   54M  806M   7% /boot

iops: 1000+

严重影响其他虚拟机磁盘性能

@knight42

[03/Sep/2016:01:52:09 +0800] 1472838729.531 200 113.67.174.155 57673 202.141.160.98 640 440 442 0.375 http POST "/xmlrpc.php" "/xmlrpc.php" "yjh.blog.ustc.edu.cn" "-" "XML-RPC.NET"
[03/Sep/2016:01:52:09 +0800] 1472838729.936 200 113.67.174.155 57673 202.141.160.98 640 440 439 0.370 http POST "/xmlrpc.php" "/xmlrpc.php" "yjh.blog.ustc.edu.cn" "-" "XML-RPC.NET"
[03/Sep/2016:01:52:10 +0800] 1472838730.355 200 113.67.174.155 57673 202.141.160.98 640 440 440 0.384 http POST "/xmlrpc.php" "/xmlrpc.php" "yjh.blog.ustc.edu.cn" "-" "XML-RPC.NET"
[03/Sep/2016:01:52:10 +0800] 1472838730.765 200 113.67.174.155 57673 202.141.160.98 640 440 440 0.375 http POST "/xmlrpc.php" "/xmlrpc.php" "yjh.blog.ustc.edu.cn" "-" "XML-RPC.NET"
[03/Sep/2016:01:52:11 +0800] 1472838731.175 200 113.67.174.155 57673 202.141.160.98 640 440 437 0.375 http POST "/xmlrpc.php" "/xmlrpc.php" "yjh.blog.ustc.edu.cn" "-" "XML-RPC.NET"
[03/Sep/2016:01:52:11 +0800] 1472838731.592 200 113.67.174.155 57673 202.141.160.98 640 440 434 0.382 http POST "/xmlrpc.php" "/xmlrpc.php" "yjh.blog.ustc.edu.cn" "-" "XML-RPC.NET"
[03/Sep/2016:01:52:12 +0800] 1472838732.000 200 113.67.174.155 57673 202.141.160.98 640 440 434 0.374 http POST "/xmlrpc.php" "/xmlrpc.php" "yjh.blog.ustc.edu.cn" "-" "XML-RPC.NET"

目前还不清楚有都少blog的密码已经被猜出

邮件网关发往gmail的邮件被拒收

邮件网关（mail.s.ustclug.org）发往gmail的所有邮件被gmail拒收。
相关日志：

Aug 27 15:04:19 mail postfix/smtp[1612]: 97B425F905: to=<[email protected]>, orig_to=<[email protected]>, relay=alt1.gmail-smtp-in.l.google.com[173.194.72.26]:25, delay=180970, delays=180958/0.03/11/0.69, dsn=4.7.0, status=deferred (host alt1.gmail-smtp-in.l.google.com[173.194.72.26] said: 421-4.7.0 [128.199.95.148      15] Our system has detected that this message is 421-4.7.0 suspicious due to the very low reputation of the sending IP address. 421-4.7.0 To protect our users from spam, mail sent from your IP address has 421-4.7.0 been temporarily rate limited. Please visit 421 4.7.0  https://support.google.com/mail/answer/188131 for more information. a78si25816854pfj.35 - gsmtp (in reply to end of DATA command))

原因：出口IP信誉度差。
建议：将收件人非科大邮箱的邮件路由到mailgun，由其代发。
@knight42 @bojieli

related issue #10

SMART error

Aug 24 17:03:04 mirrors smartd[17310]: Device: /dev/bus/0 [megaraid_disk_14] [SAT], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 115 to 116

mirrors 错误邮件通知

建议发生mirrors错误等严重事件时，向邮件订阅的用户，邮件通知

neatdns增加对edns-client-subnet的支持

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