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a guest Jul 24th, 2016 48 Never
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  1. [79557.300029] INFO: task sftp-server:7877 blocked for more than 120 seconds.
  2. [79557.300197]       Not tainted 4.4.0-31-generic #50-Ubuntu
  3. [79557.300328] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  4. [79557.300464] sftp-server     D ffff8800b8dcf9e8     0  7877      1 0x00000000
  5. [79557.300468]  ffff8800b8dcf9e8 ffffffff812222ac ffff8801b8281900 ffff8800bad4b200
  6. [79557.300470]  ffff8800b8dd0000 ffff8801b3284824 ffff8800bad4b200 00000000ffffffff
  7. [79557.300472]  ffff8801b3284828 ffff8800b8dcfa00 ffffffff81829a25 ffff8801b3284820
  8. [79557.300474] Call Trace:
  9. [79557.300481]  [<ffffffff812222ac>] ? do_select+0x77c/0x810
  10. [79557.300485]  [<ffffffff81829a25>] schedule+0x35/0x80
  11. [79557.300488]  [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
  12. [79557.300490]  [<ffffffff8182b909>] __mutex_lock_slowpath+0xb9/0x130
  13. [79557.300507]  [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
  14. [79557.300562]  [<ffffffffc04756cd>] cifs_reconnect_tcon+0x9d/0x340 [cifs]
  15. [79557.300565]  [<ffffffff81224ebd>] ? __d_instantiate+0x2d/0xf0
  16. [79557.300577]  [<ffffffffc0475a1a>] smb_init+0x2a/0x50 [cifs]
  17. [79557.300588]  [<ffffffffc047cc13>] CIFSSMBQPathInfo+0x63/0x2e0 [cifs]
  18. [79557.300602]  [<ffffffffc04a7c3f>] cifs_query_path_info+0x6f/0x1a0 [cifs]
  19. [79557.300605]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  20. [79557.300608]  [<ffffffff811eb813>] ? kmem_cache_alloc_trace+0x183/0x1f0
  21. [79557.300610]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  22. [79557.300623]  [<ffffffffc0496a60>] cifs_get_inode_info+0x390/0x8f0 [cifs]
  23. [79557.300625]  [<ffffffff81218011>] ? unlazy_walk+0xc1/0x150
  24. [79557.300627]  [<ffffffff811ecea9>] ? __kmalloc+0x1b9/0x250
  25. [79557.300639]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  26. [79557.300651]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  27. [79557.300665]  [<ffffffffc0498f55>] cifs_revalidate_dentry_attr+0x1d5/0x250 [cifs]
  28. [79557.300667]  [<ffffffff811eba97>] ? kmem_cache_alloc+0x187/0x1f0
  29. [79557.300680]  [<ffffffffc0499081>] cifs_getattr+0x51/0x110 [cifs]
  30. [79557.300682]  [<ffffffff81211d9c>] vfs_getattr_nosec+0x2c/0x40
  31. [79557.300684]  [<ffffffff81211fb6>] vfs_getattr+0x26/0x30
  32. [79557.300686]  [<ffffffff81212098>] vfs_fstatat+0x78/0xc0
  33. [79557.300687]  [<ffffffff81212641>] SYSC_newlstat+0x31/0x60
  34. [79557.300690]  [<ffffffff8109ec24>] ? task_work_run+0x84/0xa0
  35. [79557.300693]  [<ffffffff81003226>] ? exit_to_usermode_loop+0xa6/0xd0
  36. [79557.300695]  [<ffffffff8121277e>] SyS_newlstat+0xe/0x10
  37. [79557.300697]  [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
  38. [79557.300700] INFO: task ls:7946 blocked for more than 120 seconds.
  39. [79557.300830]       Not tainted 4.4.0-31-generic #50-Ubuntu
  40. [79557.300952] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  41. [79557.301085] ls              D ffff8800ba28f9e8     0  7946      1 0x00000004
  42. [79557.301087]  ffff8800ba28f9e8 0000000000000000 ffffffff81e11500 ffff88010755d780
  43. [79557.301089]  ffff8800ba290000 ffff8801b3284824 ffff88010755d780 00000000ffffffff
  44. [79557.301091]  ffff8801b3284828 ffff8800ba28fa00 ffffffff81829a25 ffff8801b3284820
  45. [79557.301093] Call Trace:
  46. [79557.301096]  [<ffffffff81829a25>] schedule+0x35/0x80
  47. [79557.301098]  [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
  48. [79557.301100]  [<ffffffff8182b909>] __mutex_lock_slowpath+0xb9/0x130
  49. [79557.301102]  [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
  50. [79557.301114]  [<ffffffffc04756cd>] cifs_reconnect_tcon+0x9d/0x340 [cifs]
  51. [79557.301116]  [<ffffffff811eb299>] ? ___slab_alloc+0x1e9/0x460
  52. [79557.301127]  [<ffffffffc0475a1a>] smb_init+0x2a/0x50 [cifs]
  53. [79557.301138]  [<ffffffffc047cc13>] CIFSSMBQPathInfo+0x63/0x2e0 [cifs]
  54. [79557.301152]  [<ffffffffc04a7c3f>] cifs_query_path_info+0x6f/0x1a0 [cifs]
  55. [79557.301155]  [<ffffffff812bfaa0>] ? ext4_encrypted_follow_link+0x230/0x230
  56. [79557.301157]  [<ffffffff811ecef8>] ? __kmalloc+0x208/0x250
  57. [79557.301159]  [<ffffffff811eb813>] ? kmem_cache_alloc_trace+0x183/0x1f0
  58. [79557.301161]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  59. [79557.301174]  [<ffffffffc0496a60>] cifs_get_inode_info+0x390/0x8f0 [cifs]
  60. [79557.301176]  [<ffffffff81218011>] ? unlazy_walk+0xc1/0x150
  61. [79557.301178]  [<ffffffff811ecea9>] ? __kmalloc+0x1b9/0x250
  62. [79557.301190]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  63. [79557.301202]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  64. [79557.301216]  [<ffffffffc0498f55>] cifs_revalidate_dentry_attr+0x1d5/0x250 [cifs]
  65. [79557.301218]  [<ffffffff811eba97>] ? kmem_cache_alloc+0x187/0x1f0
  66. [79557.301231]  [<ffffffffc0499081>] cifs_getattr+0x51/0x110 [cifs]
  67. [79557.301233]  [<ffffffff81211d9c>] vfs_getattr_nosec+0x2c/0x40
  68. [79557.301235]  [<ffffffff81211fb6>] vfs_getattr+0x26/0x30
  69. [79557.301236]  [<ffffffff81212098>] vfs_fstatat+0x78/0xc0
  70. [79557.301238]  [<ffffffff81212641>] SYSC_newlstat+0x31/0x60
  71. [79557.301240]  [<ffffffff8121277e>] SyS_newlstat+0xe/0x10
  72. [79557.301242]  [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
  73. [79677.295161] INFO: task sftp-server:7877 blocked for more than 120 seconds.
  74. [79677.295229]       Not tainted 4.4.0-31-generic #50-Ubuntu
  75. [79677.295358] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  76. [79677.295503] sftp-server     D ffff8800b8dcf9e8     0  7877      1 0x00000000
  77. [79677.295507]  ffff8800b8dcf9e8 ffffffff812222ac ffff8801b8281900 ffff8800bad4b200
  78. [79677.295509]  ffff8800b8dd0000 ffff8801b3284824 ffff8800bad4b200 00000000ffffffff
  79. [79677.295511]  ffff8801b3284828 ffff8800b8dcfa00 ffffffff81829a25 ffff8801b3284820
  80. [79677.295513] Call Trace:
  81. [79677.295520]  [<ffffffff812222ac>] ? do_select+0x77c/0x810
  82. [79677.295525]  [<ffffffff81829a25>] schedule+0x35/0x80
  83. [79677.295527]  [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
  84. [79677.295529]  [<ffffffff8182b909>] __mutex_lock_slowpath+0xb9/0x130
  85. [79677.295532]  [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
  86. [79677.295555]  [<ffffffffc04756cd>] cifs_reconnect_tcon+0x9d/0x340 [cifs]
  87. [79677.295558]  [<ffffffff81224ebd>] ? __d_instantiate+0x2d/0xf0
  88. [79677.295569]  [<ffffffffc0475a1a>] smb_init+0x2a/0x50 [cifs]
  89. [79677.295580]  [<ffffffffc047cc13>] CIFSSMBQPathInfo+0x63/0x2e0 [cifs]
  90. [79677.295594]  [<ffffffffc04a7c3f>] cifs_query_path_info+0x6f/0x1a0 [cifs]
  91. [79677.295597]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  92. [79677.295600]  [<ffffffff811eb813>] ? kmem_cache_alloc_trace+0x183/0x1f0
  93. [79677.295602]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  94. [79677.295615]  [<ffffffffc0496a60>] cifs_get_inode_info+0x390/0x8f0 [cifs]
  95. [79677.295617]  [<ffffffff81218011>] ? unlazy_walk+0xc1/0x150
  96. [79677.295619]  [<ffffffff811ecea9>] ? __kmalloc+0x1b9/0x250
  97. [79677.295631]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  98. [79677.295644]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  99. [79677.295657]  [<ffffffffc0498f55>] cifs_revalidate_dentry_attr+0x1d5/0x250 [cifs]
  100. [79677.295659]  [<ffffffff811eba97>] ? kmem_cache_alloc+0x187/0x1f0
  101. [79677.295673]  [<ffffffffc0499081>] cifs_getattr+0x51/0x110 [cifs]
  102. [79677.295675]  [<ffffffff81211d9c>] vfs_getattr_nosec+0x2c/0x40
  103. [79677.295676]  [<ffffffff81211fb6>] vfs_getattr+0x26/0x30
  104. [79677.295678]  [<ffffffff81212098>] vfs_fstatat+0x78/0xc0
  105. [79677.295680]  [<ffffffff81212641>] SYSC_newlstat+0x31/0x60
  106. [79677.295683]  [<ffffffff8109ec24>] ? task_work_run+0x84/0xa0
  107. [79677.295686]  [<ffffffff81003226>] ? exit_to_usermode_loop+0xa6/0xd0
  108. [79677.295687]  [<ffffffff8121277e>] SyS_newlstat+0xe/0x10
  109. [79677.295689]  [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
  110. [79677.295692] INFO: task ls:7946 blocked for more than 120 seconds.
  111. [79677.295822]       Not tainted 4.4.0-31-generic #50-Ubuntu
  112. [79677.295945] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  113. [79677.296082] ls              D ffff8800ba28f9e8     0  7946      1 0x00000004
  114. [79677.296085]  ffff8800ba28f9e8 0000000000000000 ffffffff81e11500 ffff88010755d780
  115. [79677.296087]  ffff8800ba290000 ffff8801b3284824 ffff88010755d780 00000000ffffffff
  116. [79677.296089]  ffff8801b3284828 ffff8800ba28fa00 ffffffff81829a25 ffff8801b3284820
  117. [79677.296091] Call Trace:
  118. [79677.296094]  [<ffffffff81829a25>] schedule+0x35/0x80
  119. [79677.296096]  [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
  120. [79677.296098]  [<ffffffff8182b909>] __mutex_lock_slowpath+0xb9/0x130
  121. [79677.296100]  [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
  122. [79677.296112]  [<ffffffffc04756cd>] cifs_reconnect_tcon+0x9d/0x340 [cifs]
  123. [79677.296114]  [<ffffffff811eb299>] ? ___slab_alloc+0x1e9/0x460
  124. [79677.296125]  [<ffffffffc0475a1a>] smb_init+0x2a/0x50 [cifs]
  125. [79677.296136]  [<ffffffffc047cc13>] CIFSSMBQPathInfo+0x63/0x2e0 [cifs]
  126. [79677.296150]  [<ffffffffc04a7c3f>] cifs_query_path_info+0x6f/0x1a0 [cifs]
  127. [79677.296153]  [<ffffffff812bfaa0>] ? ext4_encrypted_follow_link+0x230/0x230
  128. [79677.296155]  [<ffffffff811ecef8>] ? __kmalloc+0x208/0x250
  129. [79677.296157]  [<ffffffff811eb813>] ? kmem_cache_alloc_trace+0x183/0x1f0
  130. [79677.296159]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  131. [79677.296173]  [<ffffffffc0496a60>] cifs_get_inode_info+0x390/0x8f0 [cifs]
  132. [79677.296175]  [<ffffffff81218011>] ? unlazy_walk+0xc1/0x150
  133. [79677.296177]  [<ffffffff811ecea9>] ? __kmalloc+0x1b9/0x250
  134. [79677.296189]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  135. [79677.296201]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  136. [79677.296214]  [<ffffffffc0498f55>] cifs_revalidate_dentry_attr+0x1d5/0x250 [cifs]
  137. [79677.296216]  [<ffffffff811eba97>] ? kmem_cache_alloc+0x187/0x1f0
  138. [79677.296230]  [<ffffffffc0499081>] cifs_getattr+0x51/0x110 [cifs]
  139. [79677.296232]  [<ffffffff81211d9c>] vfs_getattr_nosec+0x2c/0x40
  140. [79677.296233]  [<ffffffff81211fb6>] vfs_getattr+0x26/0x30
  141. [79677.296235]  [<ffffffff81212098>] vfs_fstatat+0x78/0xc0
  142. [79677.296237]  [<ffffffff81212641>] SYSC_newlstat+0x31/0x60
  143. [79677.296239]  [<ffffffff8121277e>] SyS_newlstat+0xe/0x10
  144. [79677.296240]  [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
  145. [79677.296243] INFO: task ls:8057 blocked for more than 120 seconds.
  146. [79677.296371]       Not tainted 4.4.0-31-generic #50-Ubuntu
  147. [79677.296495] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  148. [79677.296630] ls              D ffff8801b72ab9e8     0  8057      1 0x00000004
  149. [79677.296632]  ffff8801b72ab9e8 0000000000000000 ffffffff81e11500 ffff8801b6cf5780
  150. [79677.296634]  ffff8801b72ac000 ffff8801b3284824 ffff8801b6cf5780 00000000ffffffff
  151. [79677.296636]  ffff8801b3284828 ffff8801b72aba00 ffffffff81829a25 ffff8801b3284820
  152. [79677.296638] Call Trace:
  153. [79677.296641]  [<ffffffff81829a25>] schedule+0x35/0x80
  154. [79677.296643]  [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
  155. [79677.296645]  [<ffffffff8182b909>] __mutex_lock_slowpath+0xb9/0x130
  156. [79677.296647]  [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
  157. [79677.296659]  [<ffffffffc04756cd>] cifs_reconnect_tcon+0x9d/0x340 [cifs]
  158. [79677.296669]  [<ffffffffc0475a1a>] smb_init+0x2a/0x50 [cifs]
  159. [79677.296681]  [<ffffffffc047cc13>] CIFSSMBQPathInfo+0x63/0x2e0 [cifs]
  160. [79677.296695]  [<ffffffffc04a7c3f>] cifs_query_path_info+0x6f/0x1a0 [cifs]
  161. [79677.296697]  [<ffffffff812bfaa0>] ? ext4_encrypted_follow_link+0x230/0x230
  162. [79677.296699]  [<ffffffff811ecef8>] ? __kmalloc+0x208/0x250
  163. [79677.296701]  [<ffffffff811eb813>] ? kmem_cache_alloc_trace+0x183/0x1f0
  164. [79677.296703]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  165. [79677.296717]  [<ffffffffc0496a60>] cifs_get_inode_info+0x390/0x8f0 [cifs]
  166. [79677.296719]  [<ffffffff81218011>] ? unlazy_walk+0xc1/0x150
  167. [79677.296721]  [<ffffffff811ecea9>] ? __kmalloc+0x1b9/0x250
  168. [79677.296733]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  169. [79677.296745]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  170. [79677.296759]  [<ffffffffc0498f55>] cifs_revalidate_dentry_attr+0x1d5/0x250 [cifs]
  171. [79677.296761]  [<ffffffff811eba97>] ? kmem_cache_alloc+0x187/0x1f0
  172. [79677.296774]  [<ffffffffc0499081>] cifs_getattr+0x51/0x110 [cifs]
  173. [79677.296776]  [<ffffffff81211d9c>] vfs_getattr_nosec+0x2c/0x40
  174. [79677.296778]  [<ffffffff81211fb6>] vfs_getattr+0x26/0x30
  175. [79677.296779]  [<ffffffff81212098>] vfs_fstatat+0x78/0xc0
  176. [79677.296781]  [<ffffffff81212641>] SYSC_newlstat+0x31/0x60
  177. [79677.296783]  [<ffffffff8121277e>] SyS_newlstat+0xe/0x10
  178. [79677.296785]  [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
  179. [79797.290340] INFO: task sftp-server:7877 blocked for more than 120 seconds.
  180. [79797.290647]       Not tainted 4.4.0-31-generic #50-Ubuntu
  181. [79797.290902] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  182. [79797.291045] sftp-server     D ffff8800b8dcf9e8     0  7877      1 0x00000000
  183. [79797.291049]  ffff8800b8dcf9e8 ffffffff812222ac ffff8801b8281900 ffff8800bad4b200
  184. [79797.291051]  ffff8800b8dd0000 ffff8801b3284824 ffff8800bad4b200 00000000ffffffff
  185. [79797.291053]  ffff8801b3284828 ffff8800b8dcfa00 ffffffff81829a25 ffff8801b3284820
  186. [79797.291055] Call Trace:
  187. [79797.291084]  [<ffffffff812222ac>] ? do_select+0x77c/0x810
  188. [79797.291102]  [<ffffffff81829a25>] schedule+0x35/0x80
  189. [79797.291105]  [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
  190. [79797.291107]  [<ffffffff8182b909>] __mutex_lock_slowpath+0xb9/0x130
  191. [79797.291114]  [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
  192. [79797.291141]  [<ffffffffc04756cd>] cifs_reconnect_tcon+0x9d/0x340 [cifs]
  193. [79797.291144]  [<ffffffff81224ebd>] ? __d_instantiate+0x2d/0xf0
  194. [79797.291155]  [<ffffffffc0475a1a>] smb_init+0x2a/0x50 [cifs]
  195. [79797.291166]  [<ffffffffc047cc13>] CIFSSMBQPathInfo+0x63/0x2e0 [cifs]
  196. [79797.291180]  [<ffffffffc04a7c3f>] cifs_query_path_info+0x6f/0x1a0 [cifs]
  197. [79797.291188]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  198. [79797.291196]  [<ffffffff811eb813>] ? kmem_cache_alloc_trace+0x183/0x1f0
  199. [79797.291198]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  200. [79797.291212]  [<ffffffffc0496a60>] cifs_get_inode_info+0x390/0x8f0 [cifs]
  201. [79797.291215]  [<ffffffff81218011>] ? unlazy_walk+0xc1/0x150
  202. [79797.291217]  [<ffffffff811ecea9>] ? __kmalloc+0x1b9/0x250
  203. [79797.291229]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  204. [79797.291241]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  205. [79797.291255]  [<ffffffffc0498f55>] cifs_revalidate_dentry_attr+0x1d5/0x250 [cifs]
  206. [79797.291257]  [<ffffffff811eba97>] ? kmem_cache_alloc+0x187/0x1f0
  207. [79797.291270]  [<ffffffffc0499081>] cifs_getattr+0x51/0x110 [cifs]
  208. [79797.291273]  [<ffffffff81211d9c>] vfs_getattr_nosec+0x2c/0x40
  209. [79797.291274]  [<ffffffff81211fb6>] vfs_getattr+0x26/0x30
  210. [79797.291276]  [<ffffffff81212098>] vfs_fstatat+0x78/0xc0
  211. [79797.291278]  [<ffffffff81212641>] SYSC_newlstat+0x31/0x60
  212. [79797.291291]  [<ffffffff8109ec24>] ? task_work_run+0x84/0xa0
  213. [79797.291303]  [<ffffffff81003226>] ? exit_to_usermode_loop+0xa6/0xd0
  214. [79797.291305]  [<ffffffff8121277e>] SyS_newlstat+0xe/0x10
  215. [79797.291307]  [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
  216. [79797.291310] INFO: task ls:7946 blocked for more than 120 seconds.
  217. [79797.291441]       Not tainted 4.4.0-31-generic #50-Ubuntu
  218. [79797.291565] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  219. [79797.291705] ls              D ffff8800ba28f9e8     0  7946      1 0x00000004
  220. [79797.291708]  ffff8800ba28f9e8 0000000000000000 ffffffff81e11500 ffff88010755d780
  221. [79797.291710]  ffff8800ba290000 ffff8801b3284824 ffff88010755d780 00000000ffffffff
  222. [79797.291711]  ffff8801b3284828 ffff8800ba28fa00 ffffffff81829a25 ffff8801b3284820
  223. [79797.291713] Call Trace:
  224. [79797.291717]  [<ffffffff81829a25>] schedule+0x35/0x80
  225. [79797.291719]  [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
  226. [79797.291721]  [<ffffffff8182b909>] __mutex_lock_slowpath+0xb9/0x130
  227. [79797.291723]  [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
  228. [79797.291734]  [<ffffffffc04756cd>] cifs_reconnect_tcon+0x9d/0x340 [cifs]
  229. [79797.291737]  [<ffffffff811eb299>] ? ___slab_alloc+0x1e9/0x460
  230. [79797.291747]  [<ffffffffc0475a1a>] smb_init+0x2a/0x50 [cifs]
  231. [79797.291759]  [<ffffffffc047cc13>] CIFSSMBQPathInfo+0x63/0x2e0 [cifs]
  232. [79797.291773]  [<ffffffffc04a7c3f>] cifs_query_path_info+0x6f/0x1a0 [cifs]
  233. [79797.291787]  [<ffffffff812bfaa0>] ? ext4_encrypted_follow_link+0x230/0x230
  234. [79797.291790]  [<ffffffff811ecef8>] ? __kmalloc+0x208/0x250
  235. [79797.291792]  [<ffffffff811eb813>] ? kmem_cache_alloc_trace+0x183/0x1f0
  236. [79797.291794]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  237. [79797.291808]  [<ffffffffc0496a60>] cifs_get_inode_info+0x390/0x8f0 [cifs]
  238. [79797.291810]  [<ffffffff81218011>] ? unlazy_walk+0xc1/0x150
  239. [79797.291812]  [<ffffffff811ecea9>] ? __kmalloc+0x1b9/0x250
  240. [79797.291824]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  241. [79797.291836]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  242. [79797.291850]  [<ffffffffc0498f55>] cifs_revalidate_dentry_attr+0x1d5/0x250 [cifs]
  243. [79797.291852]  [<ffffffff811eba97>] ? kmem_cache_alloc+0x187/0x1f0
  244. [79797.291866]  [<ffffffffc0499081>] cifs_getattr+0x51/0x110 [cifs]
  245. [79797.291868]  [<ffffffff81211d9c>] vfs_getattr_nosec+0x2c/0x40
  246. [79797.291869]  [<ffffffff81211fb6>] vfs_getattr+0x26/0x30
  247. [79797.291871]  [<ffffffff81212098>] vfs_fstatat+0x78/0xc0
  248. [79797.291873]  [<ffffffff81212641>] SYSC_newlstat+0x31/0x60
  249. [79797.291875]  [<ffffffff8121277e>] SyS_newlstat+0xe/0x10
  250. [79797.291877]  [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
  251. [79797.291879] INFO: task ls:8057 blocked for more than 120 seconds.
  252. [79797.292010]       Not tainted 4.4.0-31-generic #50-Ubuntu
  253. [79797.292138] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  254. [79797.292268] ls              D ffff8801b72ab9e8     0  8057      1 0x00000004
  255. [79797.292271]  ffff8801b72ab9e8 0000000000000000 ffffffff81e11500 ffff8801b6cf5780
  256. [79797.292273]  ffff8801b72ac000 ffff8801b3284824 ffff8801b6cf5780 00000000ffffffff
  257. [79797.292274]  ffff8801b3284828 ffff8801b72aba00 ffffffff81829a25 ffff8801b3284820
  258. [79797.292276] Call Trace:
  259. [79797.292279]  [<ffffffff81829a25>] schedule+0x35/0x80
  260. [79797.292281]  [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
  261. [79797.292283]  [<ffffffff8182b909>] __mutex_lock_slowpath+0xb9/0x130
  262. [79797.292285]  [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
  263. [79797.292297]  [<ffffffffc04756cd>] cifs_reconnect_tcon+0x9d/0x340 [cifs]
  264. [79797.292308]  [<ffffffffc0475a1a>] smb_init+0x2a/0x50 [cifs]
  265. [79797.292319]  [<ffffffffc047cc13>] CIFSSMBQPathInfo+0x63/0x2e0 [cifs]
  266. [79797.292333]  [<ffffffffc04a7c3f>] cifs_query_path_info+0x6f/0x1a0 [cifs]
  267. [79797.292336]  [<ffffffff812bfaa0>] ? ext4_encrypted_follow_link+0x230/0x230
  268. [79797.292338]  [<ffffffff811ecef8>] ? __kmalloc+0x208/0x250
  269. [79797.292340]  [<ffffffff811eb813>] ? kmem_cache_alloc_trace+0x183/0x1f0
  270. [79797.292342]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  271. [79797.292355]  [<ffffffffc0496a60>] cifs_get_inode_info+0x390/0x8f0 [cifs]
  272. [79797.292358]  [<ffffffff81218011>] ? unlazy_walk+0xc1/0x150
  273. [79797.292359]  [<ffffffff811ecea9>] ? __kmalloc+0x1b9/0x250
  274. [79797.292372]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  275. [79797.292384]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  276. [79797.292397]  [<ffffffffc0498f55>] cifs_revalidate_dentry_attr+0x1d5/0x250 [cifs]
  277. [79797.292400]  [<ffffffff811eba97>] ? kmem_cache_alloc+0x187/0x1f0
  278. [79797.292413]  [<ffffffffc0499081>] cifs_getattr+0x51/0x110 [cifs]
  279. [79797.292415]  [<ffffffff81211d9c>] vfs_getattr_nosec+0x2c/0x40
  280. [79797.292417]  [<ffffffff81211fb6>] vfs_getattr+0x26/0x30
  281. [79797.292418]  [<ffffffff81212098>] vfs_fstatat+0x78/0xc0
  282. [79797.292420]  [<ffffffff81212641>] SYSC_newlstat+0x31/0x60
  283. [79797.292422]  [<ffffffff8121277e>] SyS_newlstat+0xe/0x10
  284. [79797.292424]  [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
  285. [79917.285664] INFO: task sftp-server:7877 blocked for more than 120 seconds.
  286. [79917.286102]       Not tainted 4.4.0-31-generic #50-Ubuntu
  287. [79917.286274] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  288. [79917.286410] sftp-server     D ffff8800b8dcf9e8     0  7877      1 0x00000000
  289. [79917.286414]  ffff8800b8dcf9e8 ffffffff812222ac ffff8801b8281900 ffff8800bad4b200
  290. [79917.286416]  ffff8800b8dd0000 ffff8801b3284824 ffff8800bad4b200 00000000ffffffff
  291. [79917.286418]  ffff8801b3284828 ffff8800b8dcfa00 ffffffff81829a25 ffff8801b3284820
  292. [79917.286420] Call Trace:
  293. [79917.286428]  [<ffffffff812222ac>] ? do_select+0x77c/0x810
  294. [79917.286433]  [<ffffffff81829a25>] schedule+0x35/0x80
  295. [79917.286435]  [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
  296. [79917.286437]  [<ffffffff8182b909>] __mutex_lock_slowpath+0xb9/0x130
  297. [79917.286441]  [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
  298. [79917.286463]  [<ffffffffc04756cd>] cifs_reconnect_tcon+0x9d/0x340 [cifs]
  299. [79917.286466]  [<ffffffff81224ebd>] ? __d_instantiate+0x2d/0xf0
  300. [79917.286476]  [<ffffffffc0475a1a>] smb_init+0x2a/0x50 [cifs]
  301. [79917.286488]  [<ffffffffc047cc13>] CIFSSMBQPathInfo+0x63/0x2e0 [cifs]
  302. [79917.286502]  [<ffffffffc04a7c3f>] cifs_query_path_info+0x6f/0x1a0 [cifs]
  303. [79917.286505]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  304. [79917.286508]  [<ffffffff811eb813>] ? kmem_cache_alloc_trace+0x183/0x1f0
  305. [79917.286510]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  306. [79917.286523]  [<ffffffffc0496a60>] cifs_get_inode_info+0x390/0x8f0 [cifs]
  307. [79917.286525]  [<ffffffff81218011>] ? unlazy_walk+0xc1/0x150
  308. [79917.286528]  [<ffffffff811ecea9>] ? __kmalloc+0x1b9/0x250
  309. [79917.286540]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  310. [79917.286552]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  311. [79917.286565]  [<ffffffffc0498f55>] cifs_revalidate_dentry_attr+0x1d5/0x250 [cifs]
  312. [79917.286567]  [<ffffffff811eba97>] ? kmem_cache_alloc+0x187/0x1f0
  313. [79917.286581]  [<ffffffffc0499081>] cifs_getattr+0x51/0x110 [cifs]
  314. [79917.286583]  [<ffffffff81211d9c>] vfs_getattr_nosec+0x2c/0x40
  315. [79917.286585]  [<ffffffff81211fb6>] vfs_getattr+0x26/0x30
  316. [79917.286586]  [<ffffffff81212098>] vfs_fstatat+0x78/0xc0
  317. [79917.286588]  [<ffffffff81212641>] SYSC_newlstat+0x31/0x60
  318. [79917.286591]  [<ffffffff8109ec24>] ? task_work_run+0x84/0xa0
  319. [79917.286594]  [<ffffffff81003226>] ? exit_to_usermode_loop+0xa6/0xd0
  320. [79917.286596]  [<ffffffff8121277e>] SyS_newlstat+0xe/0x10
  321. [79917.286604]  [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
  322. [79917.286607] INFO: task ls:7946 blocked for more than 120 seconds.
  323. [79917.286737]       Not tainted 4.4.0-31-generic #50-Ubuntu
  324. [79917.286861] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  325. [79917.287532] ls              D ffff8800ba28f9e8     0  7946      1 0x00000004
  326. [79917.287535]  ffff8800ba28f9e8 0000000000000000 ffffffff81e11500 ffff88010755d780
  327. [79917.287537]  ffff8800ba290000 ffff8801b3284824 ffff88010755d780 00000000ffffffff
  328. [79917.287539]  ffff8801b3284828 ffff8800ba28fa00 ffffffff81829a25 ffff8801b3284820
  329. [79917.287541] Call Trace:
  330. [79917.287544]  [<ffffffff81829a25>] schedule+0x35/0x80
  331. [79917.287547]  [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
  332. [79917.287548]  [<ffffffff8182b909>] __mutex_lock_slowpath+0xb9/0x130
  333. [79917.287550]  [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
  334. [79917.287562]  [<ffffffffc04756cd>] cifs_reconnect_tcon+0x9d/0x340 [cifs]
  335. [79917.287565]  [<ffffffff811eb299>] ? ___slab_alloc+0x1e9/0x460
  336. [79917.287575]  [<ffffffffc0475a1a>] smb_init+0x2a/0x50 [cifs]
  337. [79917.287587]  [<ffffffffc047cc13>] CIFSSMBQPathInfo+0x63/0x2e0 [cifs]
  338. [79917.287601]  [<ffffffffc04a7c3f>] cifs_query_path_info+0x6f/0x1a0 [cifs]
  339. [79917.287604]  [<ffffffff812bfaa0>] ? ext4_encrypted_follow_link+0x230/0x230
  340. [79917.287606]  [<ffffffff811ecef8>] ? __kmalloc+0x208/0x250
  341. [79917.287608]  [<ffffffff811eb813>] ? kmem_cache_alloc_trace+0x183/0x1f0
  342. [79917.287610]  [<ffffffff81218224>] ? lookup_fast+0x184/0x330
  343. [79917.287623]  [<ffffffffc0496a60>] cifs_get_inode_info+0x390/0x8f0 [cifs]
  344. [79917.287626]  [<ffffffff81218011>] ? unlazy_walk+0xc1/0x150
  345. [79917.287628]  [<ffffffff811ecea9>] ? __kmalloc+0x1b9/0x250
  346. [79917.287640]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  347. [79917.287652]  [<ffffffffc0489ba1>] ? build_path_from_dentry+0xb1/0x2d0 [cifs]
  348. [79917.287665]  [<ffffffffc0498f55>] cifs_revalidate_dentry_attr+0x1d5/0x250 [cifs]
  349. [79917.287667]  [<ffffffff811eba97>] ? kmem_cache_alloc+0x187/0x1f0
  350. [79917.287681]  [<ffffffffc0499081>] cifs_getattr+0x51/0x110 [cifs]
  351. [79917.287683]  [<ffffffff81211d9c>] vfs_getattr_nosec+0x2c/0x40
  352. [79917.287684]  [<ffffffff81211fb6>] vfs_getattr+0x26/0x30
  353. [79917.287686]  [<ffffffff81212098>] vfs_fstatat+0x78/0xc0
  354. [79917.287688]  [<ffffffff81212641>] SYSC_newlstat+0x31/0x60
  355. [79917.287690]  [<ffffffff8121277e>] SyS_newlstat+0xe/0x10
  356. [79917.287692]  [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
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