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v4.6 page alloc

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Jun 2nd, 2016
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  1. [ 183.580856] kworker/u4:4: page allocation failure: order:0, mode:0x2204020(GFP_NOWAIT|__GFP_HIGH|__GFP_COMP|__GFP_NOTRACK)
  2. [ 183.586361] CPU: 1 PID: 764 Comm: kworker/u4:4 Not tainted 4.6.0+ #1
  3. [ 183.589776] Hardware name: Marvell Armada 3720 Development Board DB-88F3720-DDR3 (DT)
  4. [ 183.593653] Workqueue: btrfs-submit btrfs_submit_helper
  5. [ 183.596527] Call trace:
  6. [ 183.597792] [<ffffff800808982c>] dump_backtrace+0x0/0x1ac
  7. [ 183.600671] [<ffffff80080899ec>] show_stack+0x14/0x1c
  8. [ 183.603062] [<ffffff80083e0784>] dump_stack+0x8c/0xac
  9. [ 183.605896] [<ffffff8008156e08>] warn_alloc_failed+0xdc/0x130
  10. [ 183.608647] [<ffffff800815a1d0>] __alloc_pages_nodemask+0x2f8/0x870
  11. [ 183.611933] [<ffffff80081a0600>] new_slab+0x388/0x534
  12. [ 183.614678] [<ffffff80081a2d10>] ___slab_alloc.constprop.69+0x300/0x390
  13. [ 183.617963] [<ffffff80081a2dc4>] __slab_alloc.isra.66.constprop.68+0x24/0x34
  14. [ 183.621653] [<ffffff80081a2f5c>] kmem_cache_alloc+0x188/0x1b4
  15. [ 183.624625] [<ffffff800851bd70>] scsi_host_alloc_command+0x30/0xb8
  16. [ 183.627864] [<ffffff800851c720>] scsi_get_command+0x28/0x178
  17. [ 183.630611] [<ffffff8008523764>] scsi_prep_fn+0x124/0x144
  18. [ 183.633446] [<ffffff80083c3f10>] blk_peek_request+0x164/0x228
  19. [ 183.636505] [<ffffff80085240e4>] scsi_request_fn+0x4c/0x5b0
  20. [ 183.639519] [<ffffff80083c04d8>] __blk_run_queue+0x34/0x4c
  21. [ 183.642314] [<ffffff80083c42b8>] blk_flush_plug_list+0x1d4/0x234
  22. [ 183.645421] [<ffffff80083c45bc>] blk_finish_plug+0x34/0x48
  23. [ 183.648123] [<ffffff800833e61c>] run_scheduled_bios+0x290/0x434
  24. [ 183.651226] [<ffffff800833e7d0>] pending_bios_fn+0x10/0x18
  25. [ 183.654017] [<ffffff800834815c>] normal_work_helper+0x98/0x218
  26. [ 183.657167] [<ffffff800834846c>] btrfs_submit_helper+0x10/0x18
  27. [ 183.660049] [<ffffff80080cff4c>] process_one_work+0x128/0x2ec
  28. [ 183.662974] [<ffffff80080d0168>] worker_thread+0x58/0x434
  29. [ 183.665810] [<ffffff80080d5b98>] kthread+0xd4/0xe8
  30. [ 183.668195] [<ffffff8008085e10>] ret_from_fork+0x10/0x40
  31. [ 183.670939] Mem-Info:
  32. [ 183.672340] active_anon:4360 inactive_anon:33 isolated_anon:0
  33. [ 183.672340] active_file:22643 inactive_file:73647 isolated_file:0
  34. [ 183.672340] unevictable:0 dirty:4868 writeback:12430 unstable:0
  35. [ 183.672340] slab_reclaimable:1111 slab_unreclaimable:1708
  36. [ 183.672340] mapped:2018 shmem:71 pagetables:132 bounce:0
  37. [ 183.672340] free:1664 free_pcp:74 free_cma:1476
  38. [ 183.689444] DMA free:6656kB min:2564kB low:3204kB high:3844kB active_anon:17440kB inactive_anon:132kB active_file:90572kB inactive_file:294588kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:524224kB managed:429108kB mlocked:0kB dirty:19472kB writeback:49720kB mapped:8072kB shmem:284kB slab_reclaimable:4444kB slab_unreclaimable:6832kB kernel_stack:2208kB pagetables:528kB unstable:0kB bounce:0kB free_pcp:296kB local_pcp:276kB free_cma:5904kB writeback_tmp:0kB pages_scanned:68 all_unreclaimable? no
  39. [ 183.713012] lowmem_reserve[]: 0 0 0
  40. [ 183.714861] DMA: 2*4kB (UC) 3*8kB (MEC) 8*16kB (UE) 19*32kB (M) 0*64kB 2*128kB (C) 18*256kB (C) 2*512kB (C) 0*1024kB 0*2048kB 0*4096kB = 6656kB
  41. [ 183.721452] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
  42. [ 183.725859] 96382 total pagecache pages
  43. [ 183.727707] 0 pages in swap cache
  44. [ 183.729641] Swap cache stats: add 0, delete 0, find 0/0
  45. [ 183.732296] Free swap = 0kB
  46. [ 183.733870] Total swap = 0kB
  47. [ 183.735267] 131056 pages RAM
  48. [ 183.736708] 0 pages HighMem/MovableOnly
  49. [ 183.738777] 23779 pages reserved
  50. [ 183.740488] 4096 pages cma reserved
  51. [ 183.742246] SLUB: Unable to allocate memory on node -1, gfp=0x2088020(GFP_ATOMIC|__GFP_ZERO)
  52. [ 183.746607] cache: task_group, object size: 384, buffer size: 384, default order: 1, min order: 0
  53. [ 183.751328] node 0: slabs: 11, objs: 231, free: 0
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