I added several directories to the backup and mounted a USB hard drive (using the web interface).
My directories totalled 56GB and I started the backup manually.
In total, the backup took 18 hours. I appreciate that 56Gb is a lot of information, but I thought it would be much quicker than that when using local disks.
I have now tried both USB and SATA connected disks as well as NTFS(-3g), FAT and the B3's default format but all take the same amount of time.
I get fast access to the mounted disk via samba yet the backup appears to simply trickle data to the disk with a minimum use of processor too.
The backup finally finishes OK although I am seeing loads of errors in the syslog which I have never seen before. These errors appear to point to wifi which is still working OK. I have copied a few lines of these errors below although the syslog is literally full of this stuff
Code: Select all
Dec 15 23:31:44 B3 kernel: [384814.386274] duplicity: page allocation failure. order:1, mode:0x4020
Dec 15 23:31:44 B3 kernel: [384814.392690] Backtrace:
Dec 15 23:31:44 B3 kernel: [384814.395245] [<c002f314>] (dump_backtrace+0x0/0x10c) from [<c0352688>] (dump_stack+0x18/0x1c)
Dec 15 23:31:44 B3 kernel: [384814.403737] r6:c046749c r5:00004020 r4:00000000
Dec 15 23:31:44 B3 kernel: [384814.408458] [<c0352670>] (dump_stack+0x0/0x1c) from [<c0077e0c>] (__alloc_pages_nodemask+0x408/0x580)
Dec 15 23:31:44 B3 kernel: [384814.417735] [<c0077a04>] (__alloc_pages_nodemask+0x0/0x580) from [<c009aca8>] (__slab_alloc+0x508/0x588)
Dec 15 23:31:44 B3 kernel: [384814.427266] [<c009a7a0>] (__slab_alloc+0x0/0x588) from [<c009af08>] (__kmalloc_track_caller+0xb8/0xe8)
Dec 15 23:31:44 B3 kernel: [384814.436624] [<c009ae50>] (__kmalloc_track_caller+0x0/0xe8) from [<c02aa72c>] (__alloc_skb+0x5c/0xf4)
Dec 15 23:31:44 B3 kernel: [384814.445802] r8:bf08f030 r7:00000020 r6:00000f80 r5:de810780 r4:c0442108
Dec 15 23:31:44 B3 kernel: [384814.452618] [<c02aa6d0>] (__alloc_skb+0x0/0xf4) from [<bf08f030>] (ath_rxbuf_alloc+0x30/0x98 [ath])
Dec 15 23:31:44 B3 kernel: [384814.461739] [<bf08f000>] (ath_rxbuf_alloc+0x0/0x98 [ath]) from [<bf0f46a8>] (ath_rx_tasklet+0x49c/0x7a8 [ath9k])
Dec 15 23:31:44 B3 kernel: [384814.471955] r7:dfdeea58 r6:df12ba98 r5:df170000 r4:c8574040
Dec 15 23:31:44 B3 kernel: [384814.477738] [<bf0f420c>] (ath_rx_tasklet+0x0/0x7a8 [ath9k]) from [<bf0f356c>] (ath9k_tasklet+0x10c/0x134 [ath9k])
Dec 15 23:31:44 B3 kernel: [384814.488060] [<bf0f3460>] (ath9k_tasklet+0x0/0x134 [ath9k]) from [<c00416f8>] (tasklet_action+0x78/0xf0)
Dec 15 23:31:44 B3 kernel: [384814.497494] r7:00000000 r6:c0471200 r5:c0447480 r4:00000000
Dec 15 23:31:44 B3 kernel: [384814.503254] [<c0041680>] (tasklet_action+0x0/0xf0) from [<c0041dcc>] (__do_softirq+0x98/0x12c)
Dec 15 23:31:44 B3 kernel: [384814.511914] r7:00000006 r6:c04711dc r5:00000001 r4:00000018
Dec 15 23:31:44 B3 kernel: [384814.517674] [<c0041d34>] (__do_softirq+0x0/0x12c) from [<c0041ee4>] (irq_exit+0x84/0x94)
Dec 15 23:31:44 B3 kernel: [384814.525829] [<c0041e60>] (irq_exit+0x0/0x94) from [<c002b04c>] (asm_do_IRQ+0x4c/0x98)
Dec 15 23:31:44 B3 kernel: [384814.533719] [<c002b000>] (asm_do_IRQ+0x0/0x98) from [<c002bd24>] (__irq_usr+0x44/0xa0)
Dec 15 23:31:44 B3 kernel: [384814.541687] Exception stack(0xdd3a9fb0 to 0xdd3a9ff8)
Dec 15 23:31:44 B3 kernel: [384814.546807] 9fa0: 00570370 0000007c 000039cc 000039cb
Dec 15 23:31:44 B3 kernel: [384814.555042] 9fc0: 005700f0 00000000 000016a0 00007396 006b1528 005717b8 00000000 000016a4
Dec 15 23:31:44 B3 kernel: [384814.563274] 9fe0: 006b9528 bee2e208 401e9468 401e94d8 20000010 ffffffff
Dec 15 23:31:44 B3 kernel: [384814.569941] r6:00000016 r5:fee20200 r4:ffffffff
Dec 15 23:31:44 B3 kernel: [384814.574647] Mem-info:
Dec 15 23:31:44 B3 kernel: [384814.576989] Normal per-cpu:
Dec 15 23:31:44 B3 kernel: [384814.579859] CPU 0: hi: 186, btch: 31 usd: 169
Dec 15 23:31:44 B3 kernel: [384814.584724] active_anon:10232 inactive_anon:15248 isolated_anon:0
Dec 15 23:31:44 B3 kernel: [384814.584730] active_file:15392 inactive_file:74918 isolated_file:0
Dec 15 23:31:44 B3 kernel: [384814.584736] unevictable:0 dirty:8158 writeback:0 unstable:0
Dec 15 23:31:44 B3 kernel: [384814.584742] free:3229 slab_reclaimable:5259 slab_unreclaimable:2763
Dec 15 23:31:44 B3 kernel: [384814.584749] mapped:4277 shmem:1188 pagetables:503 bounce:0
Dec 15 23:31:44 B3 kernel: [384814.614886] Normal free:12916kB min:8192kB low:10240kB high:12288kB active_anon:40928kB inactive_anon:60992kB active_file:61568kB inactive_file:299672kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:520192kB mlocked:0kB dirty:32632kB writeback:0kB mapped:17108kB shmem:4752kB slab_reclaimable:21036kB slab_unreclaimable:11052kB kernel_stack:896kB pagetables:2012kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
Dec 15 23:31:44 B3 kernel: [384814.655189] lowmem_reserve[]: 0 0
Dec 15 23:31:44 B3 kernel: [384814.658594] Normal: 2905*4kB 12*8kB 1*16kB 1*32kB 0*64kB 1*128kB 0*256kB 0*512kB 1*1024kB 0*2048kB 0*4096kB = 12916kB
Dec 15 23:31:44 B3 kernel: [384814.669333] 92279 total pagecache pages
Dec 15 23:31:44 B3 kernel: [384814.673239] 781 pages in swap cache
Dec 15 23:31:44 B3 kernel: [384814.676800] Swap cache stats: add 6871, delete 6090, find 5608/5759
Dec 15 23:31:44 B3 kernel: [384814.683123] Free swap = 1026964kB
Dec 15 23:31:44 B3 kernel: [384814.686595] Total swap = 1048572kB
Dec 15 23:31:44 B3 kernel: [384814.704139] 131072 pages of RAM
Dec 15 23:31:44 B3 kernel: [384814.707350] 3668 free pages
Dec 15 23:31:44 B3 kernel: [384814.710218] 2245 reserved pages
Dec 15 23:31:44 B3 kernel: [384814.713432] 6091 slab pages
Dec 15 23:31:44 B3 kernel: [384814.716292] 57198 pages shared
Dec 15 23:31:44 B3 kernel: [384814.719410] 781 pages swap cached
Dec 15 23:31:44 B3 kernel: [384814.722792] SLUB: Unable to allocate memory on node -1 (gfp=0x20)
Dec 15 23:31:44 B3 kernel: [384814.728945] cache: kmalloc-8192, object size: 8192, buffer size: 8192, default order: 3, min order: 1
Dec 15 23:31:44 B3 kernel: [384814.738387] node 0: slabs: 202, objs: 808, free: 0
Dec 15 23:31:44 B3 kernel: [384814.743469] skbuff alloc of size 3872 failed
Dec 15 23:31:44 B3 kernel: [384814.748241] duplicity: page allocation failure. order:1, mode:0x4020
Dec 15 23:31:44 B3 kernel: [384814.754653] Backtrace:
Dec 15 23:31:44 B3 kernel: [384814.757199] [<c002f314>] (dump_backtrace+0x0/0x10c) from [<c0352688>] (dump_stack+0x18/0x1c)
Dec 15 23:31:44 B3 kernel: [384814.765694] r6:c046749c r5:00004020 r4:00000000
Dec 15 23:31:44 B3 kernel: [384814.770421] [<c0352670>] (dump_stack+0x0/0x1c) from [<c0077e0c>] (__alloc_pages_nodemask+0x408/0x580)
Dec 15 23:31:44 B3 kernel: [384814.779699] [<c0077a04>] (__alloc_pages_nodemask+0x0/0x580) from [<c009aca8>] (__slab_alloc+0x508/0x588)
Dec 15 23:31:44 B3 kernel: [384814.789229] [<c009a7a0>] (__slab_alloc+0x0/0x588) from [<c009b2e0>] (__kmalloc+0xb4/0xe4)
Dec 15 23:31:44 B3 kernel: [384814.797464] [<c009b22c>] (__kmalloc+0x0/0xe4) from [<c02a9960>] (pskb_expand_head+0x50/0x1dc)
Dec 15 23:31:44 B3 kernel: [384814.806038] r8:00000008 r7:00000000 r6:00000000 r5:00000f80 r4:dff3a300
Dec 15 23:31:44 B3 kernel: [384814.812920] [<c02a9910>] (pskb_expand_head+0x0/0x1dc) from [<bf06d3c8>] (ieee80211_skb_resize+0x90/0xd0 [mac80211])
Dec 15 23:31:44 B3 kernel: [384814.823396] r8:00000008 r7:dfdee260 r6:00000000 r5:00000000 r4:dff3a300
Dec 15 23:31:44 B3 kernel: [384814.830284] [<bf06d338>] (ieee80211_skb_resize+0x0/0xd0 [mac80211]) from [<bf06f048>] (ieee80211_xmit+0x64/0x1a8 [mac80211])
Dec 15 23:31:44 B3 kernel: [384814.841540] r7:dfdee260 r6:dfcc4b40 r5:dff3a300 r4:00000006
Dec 15 23:31:44 B3 kernel: [384814.847379] [<bf06efe4>] (ieee80211_xmit+0x0/0x1a8 [mac80211]) from [<bf06feb0>] (ieee80211_subif_start_xmit+0x2d8/0x660 [mac80211])
Dec 15 23:31:44 B3 kernel: [384814.859381] [<bf06fbd8>] (ieee80211_subif_start_xmit+0x0/0x660 [mac80211]) from [<c02b21c0>] (dev_hard_start_xmit+0x260/0x3ac)
Dec 15 23:31:44 B3 kernel: [384814.870820] [<c02b1f60>] (dev_hard_start_xmit+0x0/0x3ac) from [<c02c5260>] (sch_direct_xmit+0x158/0x190)
Dec 15 23:31:44 B3 kernel: [384814.880347] [<c02c5108>] (sch_direct_xmit+0x0/0x190) from [<c02b2754>] (dev_queue_xmit+0x2f8/0x53c)
Dec 15 23:31:44 B3 kernel: [384814.889440] r8:dfcc4800 r7:dfef9b88 r6:dff3a300 r5:dff3a300 r4:deaea200
Dec 15 23:31:44 B3 kernel: [384814.896280] [<c02b245c>] (dev_queue_xmit+0x0/0x53c) from [<bf18952c>] (br_dev_queue_push_xmit+0x78/0xa0 [bridge])
Dec 15 23:31:44 B3 kernel: [384814.906582] r8:dd2de042 r7:de9c4000 r6:de9c4340 r5:dff3a300 r4:dff3a300
Dec 15 23:31:44 B3 kernel: [384814.913419] [<bf1894b4>] (br_dev_queue_push_xmit+0x0/0xa0 [bridge]) from [<bf1895bc>] (br_forward_finish+0x68/0x74 [bridge])
Dec 15 23:31:44 B3 kernel: [384814.924674] r4:80000000
Dec 15 23:31:44 B3 kernel: [384814.927325] [<bf189554>] (br_forward_finish+0x0/0x74 [bridge]) from [<bf189764>] (__br_deliver+0x6c/0x78 [bridge])
Dec 15 23:31:44 B3 kernel: [384814.937711] r5:dff3a300 r4:dff3a300
Dec 15 23:31:44 B3 kernel: [384814.941408] [<bf1896f8>] (__br_deliver+0x0/0x78 [bridge]) from [<bf1897b4>] (br_deliver+0x44/0x48 [bridge])
Dec 15 23:31:44 B3 kernel: [384814.951189] r5:dff3a318 r4:dff3a300
Dec 15 23:31:44 B3 kernel: [384814.954884] [<bf189770>] (br_deliver+0x0/0x48 [bridge]) from [<bf188408>] (br_dev_xmit+0xa0/0x154 [bridge])
Dec 15 23:31:44 B3 kernel: [384814.964688] [<bf188368>] (br_dev_xmit+0x0/0x154 [bridge]) from [<c02b21c0>] (dev_hard_start_xmit+0x260/0x3ac)
Dec 15 23:31:44 B3 kernel: [384814.974648] r8:c047c5a4 r7:de9c4000 r6:dff3a300 r5:00000000 r4:c047c584
Dec 15 23:31:44 B3 kernel: [384814.981453] [<c02b1f60>] (dev_hard_start_xmit+0x0/0x3ac) from [<c02b28cc>] (dev_queue_xmit+0x470/0x53c)
Dec 15 23:31:44 B3 kernel: [384814.990899] [<c02b245c>] (dev_queue_xmit+0x0/0x53c) from [<c02dacb0>] (ip_finish_output+0x1b0/0x2d4)
Dec 15 23:31:44 B3 kernel: [384815.000074] r8:dff3a300 r7:c50b5514 r6:0000000e r5:00000000 r4:c50b5500
Dec 15 23:31:44 B3 kernel: [384815.006879] [<c02dab00>] (ip_finish_output+0x0/0x2d4) from [<c02dae98>] (ip_output+0xc4/0xd8)
Dec 15 23:31:44 B3 kernel: [384815.015454] r8:dfdea000 r7:dd2de050 r6:00000000 r5:dff3a300 r4:80000000
Dec 15 23:31:44 B3 kernel: [384815.022259] [<c02dadd4>] (ip_output+0x0/0xd8) from [<c02d69f4>] (ip_forward_finish+0x48/0x58)
Dec 15 23:31:44 B3 kernel: [384815.030833] r6:dff3a318 r5:dff3a300 r4:dff3a300
Dec 15 23:31:44 B3 kernel: [384815.035546] [<c02d69ac>] (ip_forward_finish+0x0/0x58) from [<c02d6cac>] (ip_forward+0x2a8/0x398)
Dec 15 23:31:44 B3 kernel: [384815.044381] r4:80000000
Dec 15 23:31:44 B3 kernel: [384815.047003] [<c02d6a04>] (ip_forward+0x0/0x398) from [<c02d52e0>] (ip_rcv_finish+0x1a0/0x3c0)
Dec 15 23:31:44 B3 kernel: [384815.055578] r7:dd2de050 r6:dff3a300 r5:dff3a300 r4:00000000
Dec 15 23:31:44 B3 kernel: [384815.061337] [<c02d5140>] (ip_rcv_finish+0x0/0x3c0) from [<c02d5778>] (ip_rcv+0x278/0x2e4)
Dec 15 23:31:44 B3 kernel: [384815.069566] r8:dfdea000 r7:dfdea000 r6:c047c0a8 r5:dff3a300 r4:00000000
Dec 15 23:31:44 B3 kernel: [384815.076372] [<c02d5500>] (ip_rcv+0x0/0x2e4) from [<c02b10ec>] (__netif_receive_skb+0x2d8/0x3a4)
Dec 15 23:31:44 B3 kernel: [384815.085119] r7:c0464bfc r6:dff3a300 r5:c047c504 r4:c047c524
Dec 15 23:31:44 B3 kernel: [384815.090879] [<c02b0e14>] (__netif_receive_skb+0x0/0x3a4) from [<c02b1378>] (netif_receive_skb+0x4c/0x70)
Dec 15 23:31:44 B3 kernel: [384815.100415] [<c02b132c>] (netif_receive_skb+0x0/0x70) from [<c023ffbc>] (mv643xx_eth_poll+0x548/0x794)
Dec 15 23:31:44 B3 kernel: [384815.109768] r4:dfdea480
Dec 15 23:31:44 B3 kernel: [384815.112393] [<c023fa74>] (mv643xx_eth_poll+0x0/0x794) from [<c02b15d0>] (net_rx_action+0xd4/0x1b0)
Dec 15 23:31:44 B3 kernel: [384815.121404] [<c02b14fc>] (net_rx_action+0x0/0x1b0) from [<c0041dcc>] (__do_softirq+0x98/0x12c)
Dec 15 23:31:44 B3 kernel: [384815.130068] [<c0041d34>] (__do_softirq+0x0/0x12c) from [<c0041ee4>] (irq_exit+0x84/0x94)
Dec 15 23:31:44 B3 kernel: [384815.138222] [<c0041e60>] (irq_exit+0x0/0x94) from [<c002b04c>] (asm_do_IRQ+0x4c/0x98)
Dec 15 23:31:44 B3 kernel: [384815.146113] [<c002b000>] (asm_do_IRQ+0x0/0x98) from [<c002bd24>] (__irq_usr+0x44/0xa0)
Dec 15 23:31:44 B3 kernel: [384815.154083] Exception stack(0xdd3a9fb0 to 0xdd3a9ff8)
Dec 15 23:31:44 B3 kernel: [384815.159201] 9fa0: 00570370 0000007c 000039cc 000039cb
Dec 15 23:31:44 B3 kernel: [384815.167436] 9fc0: 005700f0 00000000 000016a0 00007396 006b1528 005717b8 00000000 000016a4
Dec 15 23:31:44 B3 kernel: [384815.175669] 9fe0: 006b9528 bee2e208 401e9468 401e94d8 20000010 ffffffff
Dec 15 23:31:44 B3 kernel: [384815.182344] r6:00000016 r5:fee20200 r4:ffffffff
Dec 15 23:31:44 B3 kernel: [384815.187050] Mem-info:
Dec 15 23:31:44 B3 kernel: [384815.189393] Normal per-cpu:
Dec 15 23:31:44 B3 kernel: [384815.192263] CPU 0: hi: 186, btch: 31 usd: 169
Dec 15 23:31:44 B3 kernel: [384815.197128] active_anon:10232 inactive_anon:15248 isolated_anon:0
Dec 15 23:31:44 B3 kernel: [384815.197134] active_file:15392 inactive_file:74918 isolated_file:0
Dec 15 23:31:44 B3 kernel: [384815.197141] unevictable:0 dirty:8158 writeback:0 unstable:0
Dec 15 23:31:44 B3 kernel: [384815.197146] free:3229 slab_reclaimable:5259 slab_unreclaimable:2763
Dec 15 23:31:44 B3 kernel: [384815.197153] mapped:4277 shmem:1188 pagetables:503 bounce:0
Dec 15 23:31:44 B3 kernel: [384815.227289] Normal free:12916kB min:8192kB low:10240kB high:12288kB active_anon:40928kB inactive_anon:60992kB active_file:61568kB inactive_file:299672kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:520192kB mlocked:0kB dirty:32632kB writeback:0kB mapped:17108kB shmem:4752kB slab_reclaimable:21036kB slab_unreclaimable:11052kB kernel_stack:896kB pagetables:2012kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
Dec 15 23:31:44 B3 kernel: [384815.267592] lowmem_reserve[]: 0 0
Dec 15 23:31:44 B3 kernel: [384815.270997] Normal: 2905*4kB 12*8kB 1*16kB 1*32kB 0*64kB 1*128kB 0*256kB 0*512kB 1*1024kB 0*2048kB 0*4096kB = 12916kB
Dec 15 23:31:44 B3 kernel: [384815.281736] 92279 total pagecache pages
Dec 15 23:31:44 B3 kernel: [384815.285642] 781 pages in swap cache
Dec 15 23:31:44 B3 kernel: [384815.289203] Swap cache stats: add 6871, delete 6090, find 5608/5759
Dec 15 23:31:44 B3 kernel: [384815.295526] Free swap = 1026964kB
Dec 15 23:31:44 B3 kernel: [384815.299000] Total swap = 1048572kB
Dec 15 23:31:44 B3 kernel: [384815.316415] 131072 pages of RAM
Dec 15 23:31:44 B3 kernel: [384815.319623] 3668 free pages
Dec 15 23:31:44 B3 kernel: [384815.322491] 2245 reserved pages
Dec 15 23:31:44 B3 kernel: [384815.325696] 6091 slab pages
Dec 15 23:31:44 B3 kernel: [384815.328556] 57198 pages shared
Dec 15 23:31:44 B3 kernel: [384815.331675] 781 pages swap cached
Dec 15 23:31:44 B3 kernel: [384815.335057] SLUB: Unable to allocate memory on node -1 (gfp=0x20)
Dec 15 23:31:44 B3 kernel: [384815.341210] cache: kmalloc-8192, object size: 8192, buffer size: 8192, default order: 3, min order: 1
Dec 15 23:31:44 B3 kernel: [384815.350651] node 0: slabs: 202, objs: 808, free: 0
Dec 15 23:31:44 B3 kernel: [384815.355731] phy0: failed to reallocate TX buffer
Phil