WR841ND CPU völlig überlastet, alfred page allocation failure

Hallo zusammen,

in der Domäne Ruhrgebiet sehe ich auf einem WR841ND v8 „mesh only“ ständige Zusammenbrüche. Alle paar Minuten erfolgen reboots, meistens hängen aber nur die Verbindungen. Die Statusseite meldet „maximale“ CPU Belastung:

20:33:10 up 7 min, load average: 13.10, 8.79, 3.99

und ein logread -f zeigt andauernde alfred page allocation failures (alle 5 bis 10 Sekunden!):

Thu May 21 20:33:06 2015 kern.warn kernel: [  461.170000] alfred: page allocation failure: order:7, mode:0x1040d0
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.180000] CPU: 0 PID: 1444 Comm: alfred Not tainted 3.10.49 #1
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.180000] Stack : 00000000 00000000 00000000 00000000 803bce76 00000034 815f45d8 00000000
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.180000] 	  802f5bc8 8033f9a3 000005a4 803b3a00 815f45d8 00000000 0000000b 00000000
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.180000] 	  0000000b 80290d60 00000000 801f39cc 00000006 816d7d44 802f7258 816d7d64
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.180000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.180000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 816d7cf0
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.180000] 	  ...
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.220000] Call Trace:
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.230000] [<80235a54>] show_stack+0x48/0x70
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.230000] [<802a066c>] warn_alloc_failed+0x108/0x12c
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.240000] [<80081e48>] __alloc_pages_nodemask+0x3a0/0x634
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.240000] [<800930f8>] __get_free_pages+0x18/0x4c
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.250000] [<802242d0>] seq_read+0x270/0x48c
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.260000] [<80296ac4>] vfs_read+0xa4/0x164
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.260000] [<80078198>] SyS_read+0x58/0xa4
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.260000] [<800625b0>] stack_done+0x20/0x44
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.270000] 
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.270000] Mem-Info:
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.280000] Normal per-cpu:
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.280000] CPU    0: hi:    0, btch:   1 usd:   0
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.280000] active_anon:1166 inactive_anon:14 isolated_anon:0
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.280000]  active_file:11 inactive_file:18 isolated_file:0
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.280000]  unevictable:0 dirty:0 writeback:0 unstable:0
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.280000]  free:1416 slab_reclaimable:295 slab_unreclaimable:2606
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.280000]  mapped:1 shmem:25 pagetables:131 bounce:0
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.280000]  free_cma:0
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.320000] Normal free:5536kB min:676kB low:844kB high:1012kB active_anon:4664kB inactive_anon:56kB active_file:44kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:32768kB managed:28592kB mlocked:0kB dirty:0kB writeback:0kB mapped:4kB shmem:100kB slab_reclaimable:1180kB slab_unreclaimable:10456kB kernel_stack:448kB pagetables:524kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.360000] lowmem_reserve[]: 0 0
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.370000] Normal: 218*4kB (UEMR) 191*8kB (UMR) 84*16kB (UMR) 8*32kB (UMR) 1*64kB (R) 6*128kB (R) 3*256kB (R) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5600kB
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.380000] 54 total pagecache pages
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.390000] 0 pages in swap cache
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.390000] Swap cache stats: add 0, delete 0, find 0/0
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.400000] Free swap  = 0kB
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.400000] Total swap = 0kB
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.410000] 8192 pages RAM
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.410000] 977 pages reserved
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.410000] 264082 pages shared
Thu May 21 20:33:06 2015 kern.warn kernel: [  461.420000] 5516 pages non-shared
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.260000] alfred: page allocation failure: order:7, mode:0x1040d0
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.260000] CPU: 0 PID: 1444 Comm: alfred Not tainted 3.10.49 #1
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.270000] Stack : 00000000 00000000 00000000 00000000 803bce76 00000034 815f45d8 00000000
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.270000] 	  802f5bc8 8033f9a3 000005a4 803b3a00 815f45d8 00000000 00000020 00000000
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.270000] 	  00000020 80290d60 00000000 801f39cc 00000006 00000000 802f7258 816d7d64
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.270000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.270000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 816d7cf0
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.270000] 	  ...
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.310000] Call Trace:
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.310000] [<80235a54>] show_stack+0x48/0x70
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.320000] [<802a066c>] warn_alloc_failed+0x108/0x12c
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.330000] [<80081e48>] __alloc_pages_nodemask+0x3a0/0x634
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.330000] [<800930f8>] __get_free_pages+0x18/0x4c
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.340000] [<802242d0>] seq_read+0x270/0x48c
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.340000] [<80296ac4>] vfs_read+0xa4/0x164
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.360000] [<80078198>] SyS_read+0x58/0xa4
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.360000] [<800625b0>] stack_done+0x20/0x44
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.370000] 
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.370000] Mem-Info:
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.370000] Normal per-cpu:
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.370000] CPU    0: hi:    0, btch:   1 usd:   0
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.380000] active_anon:961 inactive_anon:14 isolated_anon:0
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.380000]  active_file:248 inactive_file:277 isolated_file:17
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.380000]  unevictable:0 dirty:0 writeback:0 unstable:0
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.380000]  free:1343 slab_reclaimable:295 slab_unreclaimable:2486
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.380000]  mapped:265 shmem:25 pagetables:117 bounce:0
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.380000]  free_cma:0
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.410000] Normal free:5248kB min:676kB low:844kB high:1012kB active_anon:3844kB inactive_anon:56kB active_file:992kB inactive_file:1108kB unevictable:0kB isolated(anon):0kB isolated(file):68kB present:32768kB managed:28592kB mlocked:0kB dirty:0kB writeback:0kB mapped:1060kB shmem:100kB slab_reclaimable:1180kB slab_unreclaimable:9972kB kernel_stack:432kB pagetables:468kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? Thu May 21 20:33:12 2015 kern.warn kernel: [  469.460000] lowmem_reserve[]: 0 0
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.460000] Normal: 366*4kB (UEMR) 208*8kB (UMR) 49*16kB (UMR) 4*32kB (R) 1*64kB (R) 3*128kB (R) 3*256kB (R) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5256kB
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.480000] 567 total pagecache pages
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.480000] 0 pages in swap cache
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.490000] Swap cache stats: add 0, delete 0, find 0/0
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.490000] Free swap  = 0kB
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.500000] Total swap = 0kB
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.500000] 8192 pages RAM
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.510000] 977 pages reserved
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.510000] 264720 pages shared
Thu May 21 20:33:12 2015 kern.warn kernel: [  469.510000] 5176 pages non-shared
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.580000] alfred: page allocation failure: order:7, mode:0x1040d0
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.580000] CPU: 0 PID: 1444 Comm: alfred Not tainted 3.10.49 #1
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.590000] Stack : 00000000 00000000 00000000 00000000 803bce76 00000034 815f45d8 00000000
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.590000] 	  802f5bc8 8033f9a3 000005a4 803b3a00 815f45d8 00000000 00000026 00000000
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.590000] 	  00000026 80290d60 00000000 801f39cc 00000006 00000000 802f7258 816d7d64
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.590000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.590000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 816d7cf0
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.590000] 	  ...
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.630000] Call Trace:
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.630000] [<80235a54>] show_stack+0x48/0x70
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.640000] [<802a066c>] warn_alloc_failed+0x108/0x12c
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.640000] [<80081e48>] __alloc_pages_nodemask+0x3a0/0x634
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.650000] [<800930f8>] __get_free_pages+0x18/0x4c
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.650000] [<802242d0>] seq_read+0x270/0x48c
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.660000] [<80296ac4>] vfs_read+0xa4/0x164
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.670000] [<80078198>] SyS_read+0x58/0xa4
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.670000] [<800625b0>] stack_done+0x20/0x44
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.680000] 
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.680000] Mem-Info:
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.680000] Normal per-cpu:
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.690000] CPU    0: hi:    0, btch:   1 usd:   0
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.690000] active_anon:902 inactive_anon:14 isolated_anon:0
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.690000]  active_file:210 inactive_file:170 isolated_file:15
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.690000]  unevictable:0 dirty:0 writeback:0 unstable:0
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.690000]  free:1610 slab_reclaimable:295 slab_unreclaimable:2501
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.690000]  mapped:242 shmem:25 pagetables:98 bounce:0
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.690000]  free_cma:0
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.730000] Normal free:6344kB min:676kB low:844kB high:1012kB active_anon:3608kB inactive_anon:56kB active_file:840kB inactive_file:680kB unevictable:0kB isolated(anon):0kB isolated(file):60kB present:32768kB managed:28592kB mlocked:0kB dirty:0kB writeback:0kB mapped:968kB shmem:100kB slab_reclaimable:1180kB slab_unreclaimable:10004kB kernel_stack:384kB pagetables:392kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? nThu May 21 20:33:19 2015 kern.warn kernel: [  474.780000] lowmem_reserve[]: 0 0
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.780000] Normal: 481*4kB (UEMR) 249*8kB (UMR) 66*16kB (UMR) 2*32kB (R) 1*64kB (R) 2*128kB (R) 2*256kB (R) 1*512kB (R) 0*1024kB 0*2048kB 0*4096kB = 6380kB
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.800000] 420 total pagecache pages
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.800000] 0 pages in swap cache
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.810000] Swap cache stats: add 0, delete 0, find 0/0
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.810000] Free swap  = 0kB
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.810000] Total swap = 0kB
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.820000] 8192 pages RAM
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.820000] 977 pages reserved
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.830000] 264615 pages shared
Thu May 21 20:33:19 2015 kern.warn kernel: [  474.830000] 4984 pages non-shared
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.370000] alfred: page allocation failure: order:7, mode:0x1040d0
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.370000] CPU: 0 PID: 1444 Comm: alfred Not tainted 3.10.49 #1
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.380000] Stack : 00000000 00000000 00000000 00000000 803bce76 00000034 815f45d8 00000000
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.380000] 	  802f5bc8 8033f9a3 000005a4 803b3a00 815f45d8 00000000 0000002b 00000000
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.380000] 	  0000002b 80290d60 00000000 801f39cc 00000006 00000000 802f7258 816d7d64
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.380000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.380000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 816d7cf0
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.380000] 	  ...
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.420000] Call Trace:
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.420000] [<80235a54>] show_stack+0x48/0x70
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.430000] [<802a066c>] warn_alloc_failed+0x108/0x12c
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.430000] [<80081e48>] __alloc_pages_nodemask+0x3a0/0x634
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.440000] [<800930f8>] __get_free_pages+0x18/0x4c
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.450000] [<802242d0>] seq_read+0x270/0x48c
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.450000] [<80296ac4>] vfs_read+0xa4/0x164
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.460000] [<80078198>] SyS_read+0x58/0xa4
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.460000] [<800625b0>] stack_done+0x20/0x44
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.470000] 
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.470000] Mem-Info:
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.470000] Normal per-cpu:
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.470000] CPU    0: hi:    0, btch:   1 usd:   0
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.480000] active_anon:902 inactive_anon:14 isolated_anon:0
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.480000]  active_file:60 inactive_file:66 isolated_file:0
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.480000]  unevictable:0 dirty:0 writeback:0 unstable:0
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.480000]  free:2087 slab_reclaimable:295 slab_unreclaimable:2282
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.480000]  mapped:99 shmem:25 pagetables:98 bounce:0
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.480000]  free_cma:0
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.510000] Normal free:8188kB min:676kB low:844kB high:1012kB active_anon:3608kB inactive_anon:56kB active_file:240kB inactive_file:264kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:32768kB managed:28592kB mlocked:0kB dirty:0kB writeback:0kB mapped:396kB shmem:100kB slab_reclaimable:1180kB slab_unreclaimable:9192kB kernel_stack:384kB pagetables:392kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.560000] lowmem_reserve[]: 0 0
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.570000] Normal: 513*4kB (UEMR) 293*8kB (UMR) 109*16kB (UMR) 6*32kB (UMR) 7*64kB (R) 4*128kB (R) 1*256kB (R) 1*512kB (R) 0*1024kB 0*2048kB 0*4096kB = 8060kB
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.580000] 151 total pagecache pages
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.590000] 0 pages in swap cache
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.600000] Swap cache stats: add 0, delete 0, find 0/0
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.600000] Free swap  = 0kB
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.600000] Total swap = 0kB
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.610000] 8192 pages RAM
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.610000] 977 pages reserved
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.620000] 264156 pages shared
Thu May 21 20:33:23 2015 kern.warn kernel: [  478.620000] 4828 pages non-shared
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.120000] alfred: page allocation failure: order:7, mode:0x1040d0
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.120000] CPU: 0 PID: 1444 Comm: alfred Not tainted 3.10.49 #1
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.130000] Stack : 00000000 00000000 00000000 00000000 803bce76 00000034 815f45d8 00000000
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.130000] 	  802f5bc8 8033f9a3 000005a4 803b3a00 815f45d8 00000000 00000027 00000000
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.130000] 	  00000027 80290d60 00000000 801f39cc 00000006 00000000 802f7258 816d7d64
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.130000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.130000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 816d7cf0
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.130000] 	  ...
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.180000] Call Trace:
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.180000] [<80235a54>] show_stack+0x48/0x70
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.190000] [<802a066c>] warn_alloc_failed+0x108/0x12c
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.190000] [<80081e48>] __alloc_pages_nodemask+0x3a0/0x634
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.200000] [<800930f8>] __get_free_pages+0x18/0x4c
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.200000] [<802242d0>] seq_read+0x270/0x48c
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.210000] [<80296ac4>] vfs_read+0xa4/0x164
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.210000] [<80078198>] SyS_read+0x58/0xa4
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.220000] [<800625b0>] stack_done+0x20/0x44
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.220000] 
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.220000] Mem-Info:
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.230000] Normal per-cpu:
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.230000] CPU    0: hi:    0, btch:   1 usd:   0
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.230000] active_anon:909 inactive_anon:14 isolated_anon:0
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.230000]  active_file:58 inactive_file:81 isolated_file:6
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.230000]  unevictable:0 dirty:0 writeback:0 unstable:0
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.230000]  free:1854 slab_reclaimable:295 slab_unreclaimable:2434
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.230000]  mapped:136 shmem:25 pagetables:101 bounce:0
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.230000]  free_cma:0
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.270000] Normal free:7352kB min:676kB low:844kB high:1012kB active_anon:3636kB inactive_anon:56kB active_file:232kB inactive_file:324kB unevictable:0kB isolated(anon):0kB isolated(file):24kB present:32768kB managed:28592kB mlocked:0kB dirty:0kB writeback:0kB mapped:544kB shmem:100kB slab_reclaimable:1180kB slab_unreclaimable:9768kB kernel_stack:392kB pagetables:404kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? noThu May 21 20:33:25 2015 kern.warn kernel: [  482.310000] lowmem_reserve[]: 0 0
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.320000] Normal: 512*4kB (UEMR) 285*8kB (UMR) 89*16kB (UMR) 2*32kB (UR) 0*64kB 4*128kB (R) 2*256kB (R) 1*512kB (R) 0*1024kB 0*2048kB 0*4096kB = 7352kB
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.330000] 168 total pagecache pages
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.340000] 0 pages in swap cache
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.340000] Swap cache stats: add 0, delete 0, find 0/0
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.350000] Free swap  = 0kB
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.350000] Total swap = 0kB
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.350000] 8192 pages RAM
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.360000] 977 pages reserved
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.360000] 264210 pages shared
Thu May 21 20:33:25 2015 kern.warn kernel: [  482.360000] 4963 pages non-shared
Thu May 21 20:33:31 2015 kern.warn kernel: [  485.950000] alfred: page allocation failure: order:7, mode:0x1040d0
Thu May 21 20:33:31 2015 kern.warn kernel: [  485.950000] CPU: 0 PID: 1444 Comm: alfred Not tainted 3.10.49 #1
Thu May 21 20:33:31 2015 kern.warn kernel: [  485.960000] Stack : 00000000 00000000 00000000 00000000 803bce76 00000034 815f45d8 00000000
Thu May 21 20:33:31 2015 kern.warn kernel: [  485.960000] 	  802f5bc8 8033f9a3 000005a4 803b3a00 815f45d8 00000000 00000004 00000000
Thu May 21 20:33:31 2015 kern.warn kernel: [  485.960000] 	  00000004 80290d60 00000000 801f39cc 00000006 816d7d44 802f7258 816d7d64
Thu May 21 20:33:31 2015 kern.warn kernel: [  485.960000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Thu May 21 20:33:31 2015 kern.warn kernel: [  485.960000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 816d7cf0
Thu May 21 20:33:31 2015 kern.warn kernel: [  485.960000] 	  ...
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.000000] Call Trace:
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.010000] [<80235a54>] show_stack+0x48/0x70
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.010000] [<802a066c>] warn_alloc_failed+0x108/0x12c
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.020000] [<80081e48>] __alloc_pages_nodemask+0x3a0/0x634
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.020000] [<800930f8>] __get_free_pages+0x18/0x4c
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.030000] [<802242d0>] seq_read+0x270/0x48c
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.030000] [<80296ac4>] vfs_read+0xa4/0x164
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.040000] [<80078198>] SyS_read+0x58/0xa4
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.040000] [<800625b0>] stack_done+0x20/0x44
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.050000] 
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.050000] Mem-Info:
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.050000] Normal per-cpu:
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.060000] CPU    0: hi:    0, btch:   1 usd:   0
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.060000] active_anon:939 inactive_anon:14 isolated_anon:0
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.060000]  active_file:19 inactive_file:32 isolated_file:0
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.060000]  unevictable:0 dirty:0 writeback:0 unstable:0
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.060000]  free:1787 slab_reclaimable:295 slab_unreclaimable:2440
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.060000]  mapped:1 shmem:25 pagetables:104 bounce:0
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.060000]  free_cma:0
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.100000] Normal free:7116kB min:676kB low:844kB high:1012kB active_anon:3756kB inactive_anon:56kB active_file:76kB inactive_file:128kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:32768kB managed:28592kB mlocked:0kB dirty:0kB writeback:0kB mapped:4kB shmem:100kB slab_reclaimable:1180kB slab_unreclaimable:9760kB kernel_stack:400kB pagetables:416kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.140000] lowmem_reserve[]: 0 0
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.140000] Normal: 360*4kB (UEMR) 288*8kB (UMR) 109*16kB (UMR) 2*32kB (UR) 7*64kB (R) 2*128kB (R) 1*256kB (R) 1*512kB (R) 0*1024kB 0*2048kB 0*4096kB = 7024kB
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.160000] 76 total pagecache pages
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.160000] 0 pages in swap cache
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.170000] Swap cache stats: add 0, delete 0, find 0/0
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.170000] Free swap  = 0kB
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.180000] Total swap = 0kB
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.180000] 8192 pages RAM
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.180000] 977 pages reserved
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.190000] 264055 pages shared
Thu May 21 20:33:31 2015 kern.warn kernel: [  486.190000] 5104 pages non-shared

Frage: Wie verhält sich bei anderen ein WR841ND v8 im Ruhrgebiet? Läuft es stabil?

Ich kenne den Effekt von meiner PicoStation. Die hat zu Stoßzeiten kaum fünf Minuten durchgehalten und dann wieder gebootet. Vormittags ging es.

Seit gestern läuft sie in der neuen Dortmunder Domäne, wo noch so gut wie kein Traffic ist. Und seitdem kein Reboot mehr.

Mein persönliches Fazit: Bei der derzeitigen Auslastung von FFRG scheinen viele der kleinen Router mit 32MB RAM schnell an ihre Grenzen zu kommen.

1 Like
Gleiches Problem hier (Community Krefeld) auf nem 841n v9.

Logauszug:
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.740000] alfred: page allocation failure: order:7, mode:0x1040d0
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.740000] CPU: 0 PID: 1390 Comm: alfred Not tainted 3.10.49 #1
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.750000] Stack : 00000000 00000000 00000000 00000000 803bce76 00000034 815f6fb8 00000000
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.750000] 	  802f5bc8 8033f9a3 0000056e 803b3a00 815f6fb8 00000000 00000031 00000000
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.750000] 	  00000031 80290d60 00000000 801f39cc 00000006 00000000 802f7258 80bcbd64
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.750000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.750000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 80bcbcf0
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.750000] 	  ...
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.790000] Call Trace:
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.790000] [<80235a54>] show_stack+0x48/0x70
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.790000] [<802a066c>] warn_alloc_failed+0x108/0x12c
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.800000] [<80081e48>] __alloc_pages_nodemask+0x3a0/0x634
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.810000] [<800930f8>] __get_free_pages+0x18/0x4c
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.810000] [<802242d0>] seq_read+0x270/0x48c
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.820000] [<80296ac4>] vfs_read+0xa4/0x164
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.820000] [<80078198>] SyS_read+0x58/0xa4
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.830000] [<800625b0>] stack_done+0x20/0x44
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.830000] 
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.830000] Mem-Info:
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.830000] Normal per-cpu:
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.840000] CPU    0: hi:    0, btch:   1 usd:   0
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.840000] active_anon:1069 inactive_anon:16 isolated_anon:0
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.840000]  active_file:547 inactive_file:418 isolated_file:18
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.840000]  unevictable:0 dirty:0 writeback:0 unstable:0
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.840000]  free:651 slab_reclaimable:334 slab_unreclaimable:2432
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.840000]  mapped:324 shmem:39 pagetables:119 bounce:0
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.840000]  free_cma:0
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.880000] Normal free:2572kB min:676kB low:844kB high:1012kB active_anon:4276kB inactive_anon:64kB active_file:2188kB inactive_file:1672kB unevictable:0kB isolated(anon):0kB isolated(file):72kB present:32768kB managed:28592kB mlocked:0kB dirty:0kB writeback:0kB mapped:1296kB shmem:156kB slab_reclaimable:1336kB slab_unreclaimable:9760kB kernel_stack:440kB pagetables:476kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:34 all_unreclaimablThu May 21 21:30:48 2015 kern.warn kernel: [427447.920000] lowmem_reserve[]: 0 0
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.920000] Normal: 107*4kB (UEMR) 58*8kB (EMR) 10*16kB (MR) 8*32kB (R) 6*64kB (R) 3*128kB (R) 0*256kB 1*512kB (R) 0*1024kB 0*2048kB 0*4096kB = 2588kB
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.940000] 1022 total pagecache pages
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.940000] 0 pages in swap cache
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.940000] Swap cache stats: add 0, delete 0, find 0/0
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.950000] Free swap  = 0kB
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.950000] Total swap = 0kB
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.960000] 8192 pages RAM
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.960000] 977 pages reserved
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.960000] 265219 pages shared
Thu May 21 21:30:48 2015 kern.warn kernel: [427447.970000] 5604 pages non-shared

Um das Problem etwas zu mildern habe ich mit der MTU rumgespielt und dabei festegstellt, dass 1392 die Load drastisch reduziert.
Dann gibt es aber folgende Events im Log:

Thu May 21 21:26:05 2015 daemon.warn fastd[3605]: MTU configuration differs with peer 5.45.107.38:10000: local MTU is 1392, remote MTU is 1426
..
Thu May 21 21:26:24 2015 daemon.warn fastd[3605]: Handshake with 5.45.107.38:10000 failed: received error: unacceptable value for field `MTU'

Dennoch funktioniert das Netz soweit... Packet loss is schon da, aber immerhin kommt überhaupt was durch, was nicht der Fall ist, wenn die Load auf dem kleinen Plasterouter >5 wird. ;-)
1 Like

Was sagt denn die Prozessliste/der top?
Wieder xfach simultan laufende dhcp-scripts?

Meine 841 machen seit längerer Zeit auch keinen Spaß mehr, egal ob v8 oder v9. Die Stunde Uptime schaffen sie kaum. Bei einer 1043v1 war das ebenso, nur dass die gerne auch nicht mehr von alleine hochkam, weswegen ich sie abgebaut habe.

Weil meine 4900 da durchlief war ich bisher nicht ganz so hinterher.

Wenn TOP im falschen Moment refresht hat man natürlich nix von - ich versuche mal mit logread mein Glück.

Fri May 22 10:16:13 2015 kern.warn kernel: [  414.630000] alfred: page allocation failure: order:7, mode:0x1040d0

Dann ist sofort finito. Die letzten Lebenszeichen von TOP nicht so ungewöhnlich.

Mem: 24460K used, 4400K free, 0K shrd, 1536K buff, 3160K cached
CPU:  13% usr  19% sys   0% nic  43% idle   0% io   0% irq  24% sirq
Load average: 3.79 1.98 0.81 3/55 2203
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 1160     1 root     R     3256  11%  25% /usr/bin/fastd --config - --daemon --
   90     2 root     SW       0   0%   3% [kworker/0:1]
  779     1 root     S     1600   6%   2% /usr/sbin/haveged -w 1024 -d 32 -i 32
    3     2 root     RW       0   0%   2% [ksoftirqd/0]
 1388     1 root     S     1108   4%   1% /usr/sbin/alfred -i br-client -b bat0
  922     1 root     S     1544   5%   0% /sbin/netifd
 2156  2139 root     R     1392   5%   0% top
 1910     2 root     SW       0   0%   0% [kworker/u2:3]
 1536     1 root     S     1572   5%   0% /usr/sbin/hostapd -P /var/run/wifi-ph
    1     0 root     S     1388   5%   0% /sbin/procd
 2112   970 root     S     1220   4%   0% /usr/sbin/dropbear -F -P /var/run/dro
 1028     1 root     S      916   3%   0% /usr/sbin/dnsmasq -x /var/run/gluon-w
    6     2 root     SW       0   0%   0% [kworker/u2:0]
 2202  2193 root     S     1624   6%   0% gzip
 1327     1 root     S     1392   5%   0% /usr/sbin/ntpd -n -p 1.ntp.services.f
 2069  2042 root     S     1392   5%   0% -ash
 2139  2112 root     S     1392   5%   0% -ash
  951     1 root     S     1392   5%   0% /usr/sbin/crond -f -c /etc/crontabs -
 2193   978 root     S     1388   5%   0% /bin/sh -c /lib/gluon/announce/announ
 1251   922 root     S     1388   5%   0% udhcpc -p /var/run/udhcpc-br-wan.pid
Mem: 23920K used, 4940K free, 0K shrd, 1536K buff, 3160K cached
CPU:   8% usr   7% sys   0% nic  53% idle   0% io   0% irq  30% sirq
Load average: 3.49 1.95 0.81 1/51 2206
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 1160     1 root     S     3256  11%  22% /usr/bin/fastd --config - --daemon --
    3     2 root     SW       0   0%   2% [ksoftirqd/0]
 1389     1 root     S     1232   4%   1% /usr/sbin/batadv-vis -i bat0 -s
 1536     1 root     S     1572   5%   1% /usr/sbin/hostapd -P /var/run/wifi-ph
 1623     1 nobody   S      924   3%   1% /usr/sbin/dnsmasq -C /var/etc/dnsmasq
 2156  2139 root     R     1392   5%   0% top
    6     2 root     SW       0   0%   0% [kworker/u2:0]

Stimmt mit meinen Erfahrungen und der top-Anzeige überein:

Mem: 24672K used, 4188K free, 0K shrd, 1088K buff, 1540K cached
CPU:   0% usr  88% sys   0% nic   5% idle   0% io   0% irq   5% sirq
Load average: 5.67 4.82 4.87 7/51 21348
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 8631     2 root     SW       0   0%  13% [kworker/u2:3]
 9326     1 root     R     3268  11%  12% /usr/bin/fastd --config - --daemon --
  773     1 root     S     1036   4%  11% /sbin/logd -S 16
31857     2 root     RW       0   0%  10% [kworker/u2:0]
 1390     1 root     R     1108   4%   9% /usr/sbin/alfred -i br-client -b bat0
20731     2 root     RW       0   0%   7% [kworker/0:0]
19294     2 root     DW       0   0%   6% [kworker/0:1]
25139     2 root     RW       0   0%   6% [kworker/u2:2]
    3     2 root     SW       0   0%   2% [ksoftirqd/0]
21312 21176 root     R     1392   5%   0% top
   95     2 root     SW       0   0%   0% [kswapd0]
19810 19808 root     S     2060   7%   0% {autoupdater} /usr/bin/lua /usr/sbin/
  778     1 root     S     1600   6%   0% /usr/sbin/haveged -w 1024 -d 32 -i 32
 1510     1 root     S     1572   5%   0% /usr/sbin/hostapd -P /var/run/wifi-ph
  921     1 root     S     1548   5%   0% /sbin/netifd
 1388     1 root     S     1416   5%   0% /usr/sbin/batadv-vis -i bat0 -s
19819 19818 root     S     1396   5%   0% wget -O- http://1.updates.services.ff
  952     1 root     S     1392   5%   0% /usr/sbin/crond -f -c /etc/crontabs -
21176 21144 root     S     1392   5%   0% -ash

Einzige Abweichung ist, dass mein 841n v9 nicht ständig rebootet, macht nur von der performance her nicht richtigen Spaß…

# uptime
 10:47:12 up 5 days, 12:00,  load average: 6.98, 5.28, 5.02

Diesmal hält der 841v8 ein bisschen länger durch, es gibt eine Reihe Failures, aber TOP aktualisiert sich noch.

Mem: 24264K used, 4596K free, 0K shrd, 1432K buff, 3140K cached
CPU:   1% usr   4% sys   0% nic  76% idle   0% io   0% irq  17% sirq
Load average: 0.98 1.09 1.17 6/48 3673
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 1159     1 root     R     3256  11%   8% /usr/bin/fastd --config - --daemon --
  778     1 root     R     1600   6%   2% /usr/sbin/haveged -w 1024 -d 32 -i 32
 1626     1 nobody   S      924   3%   1% /usr/sbin/dnsmasq -C /var/etc/dnsmasq
 1378     1 root     R     1608   6%   0% /usr/sbin/batadv-vis -i bat0 -s
 1535     1 root     S     1572   5%   0% /usr/sbin/hostapd -P /var/run/wifi-ph
 3134     2 root     SW       0   0%   0% [kworker/u2:0]
 3354  3335 root     R     1392   5%   0% top
 3310   972 root     S     1220   4%   0% /usr/sbin/dropbear -F -P /var/run/dro
    3     2 root     RW       0   0%   0% [ksoftirqd/0]
  263     2 root     SW       0   0%   0% [kworker/0:2]
  921     1 root     S     1544   5%   0% /sbin/netifd
 1351     1 root     S     1392   5%   0% /usr/sbin/ntpd -n -p 1.ntp.services.f
  950     1 root     S     1392   5%   0% /usr/sbin/crond -f -c /etc/crontabs -
 3335  3310 root     S     1392   5%   0% -ash
 2878  2853 root     S     1392   5%   0% -ash
    1     0 root     S     1388   5%   0% /sbin/procd
 1256   921 root     S     1388   5%   0% udhcpc -p /var/run/udhcpc-br-wan.pid
 2853   972 root     S     1220   4%   0% /usr/sbin/dropbear -F -P /var/run/dro
 2923  2878 root     S     1180   4%   0% logread -f
  972     1 root     S     1152   4%   0% /usr/sbin/dropbear -F -P /var/run/dro

Nach diesem Schwächeln zum Start läuft es jetzt anscheinend durch - hm.

@SenorKaffee: Auf welche MTU hast du den Router konfiguriert? Meine Ausgaben waren gerade mit MTU 1392. Habe jetzt zurückgestellt auf den default aus dem Image (MTU 1426) und die Load steigt direkt noch weiter an:

Mem: 26360K used, 2500K free, 0K shrd, 1488K buff, 2732K cached
CPU:  13% usr  52% sys   0% nic  17% idle   0% io   0% irq  16% sirq
Load average: 5.75 5.95 5.66 1/53 23451
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
23110     1 root     S     3272  11%  23% /usr/bin/fastd --config - --daemon --
22719     2 root     SW       0   0%  10% [kworker/0:3]
 2717     2 root     SW       0   0%   8% [kworker/u2:1]
25139     2 root     SW       0   0%   6% [kworker/u2:2]
    3     2 root     SW       0   0%   2% [ksoftirqd/0]
 1388     1 root     S     1416   5%   1% /usr/sbin/batadv-vis -i bat0 -s
 8631     2 root     SW       0   0%   1% [kworker/u2:3]
22517     2 root     SW       0   0%   1% [kworker/0:1]
22953 21176 root     R     1392   5%   0% top
 1027     1 root     S      920   3%   0% /usr/sbin/dnsmasq -x /var/run/gluon-w
19810 19808 root     S     2060   7%   0% {autoupdater} /usr/bin/lua /usr/sbin/
  778     1 root     S     1600   6%   0% /usr/sbin/haveged -w 1024 -d 32 -i 32
 1510     1 root     S     1572   5%   0% /usr/sbin/hostapd -P /var/run/wifi-ph
  921     1 root     S     1548   5%   0% /sbin/netifd
21176 21144 root     S     1400   5%   0% -ash
19819 19818 root     S     1396   5%   0% wget -O- http://1.updates.services.ff
22594 22581 root     S     1396   5%   0% -ash
  952     1 root     S     1392   5%   0% /usr/sbin/crond -f -c /etc/crontabs -
    1     0 root     S     1388   5%   0% /sbin/procd

…und das ohne „logread -f“ gleichzeitig… wenn der noch mitläuft, dann steigt die Load auf 7.5.

Meinst du fastd.mesh_vpn.mtu? Der fastd muss ja eigentlich nicht mitlaufen, wenn der Router keinen Uplink hat.

Ja, die meine ich. Mein Router hat nen Uplink.

@NeoRaider hatte das Problem iirc bereits identifiziert. Das liegt, wenn ich micht nicht irre, daran wie batman-adv mit der Speicherallokation für irgendeine Tabelle umgeht. Alfred, der dann diese Daten abfragt ist der Leidtragende.

1 Like

Wird da batman-adv-15 Abhilfe/linderung bringen? Oder müssen wir auf den Kernel von ChaosCalmer hoffen?

Laut unserer Alfredliste haben sehr viele Router eine extrem hohe load…

http://map.freifunk-ruhrgebiet.de/alfred/alfred.html

Die meisten sind 841er, die auch als uplink laufen. Dies kann man aber nicht als alleinigen Zusammenhang sehen, da hier ein Testrouter steht, der nur durch 2 mesh Verbindungen grandiose Überlast erzeugt:

FF-E-MOBIL-apo1

Model: TP-Link TL-WR841N/ND v8
Firmware release: 0.6

13:09:12 up  1:00,  load average: 8.44, 5.64, 4.75

http://[2a03:2260:50:1:12fe:edff:feb7:438a]/cgi-bin/status

Nun gibt es aber auch entspannte 841er, die uplink sind?!

FF-E-Bdorf-ElektroJost-01

Model: TP-Link TL-WR841N/ND v9
Firmware release: 0.6

13:11:41 up 43 min,  load average: 0.49, 0.70, 0.85

http://[2a03:2260:50:1:ea94:f6ff:fe29:a552]/cgi-bin/status

1 Like

Einen Router habe ich auf 1392 umgestellt und nach dem Reboot brach mir gerade die ganze Wolke weg. Kann Zufall sein, aber ich glaube ich zieh mir mal schnell ne Jacke an und sammle den ein… :wink: