************************* hanginfo *************************
  /exports/testreports/42096/testresults/racer-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg218-client-timeout-core (3.10.0-7.9-debug) 
 *** UNINTERRUPTIBLE threads, classified ***

 ==================== Waiting on mutexes ====================
  -- <struct mutex 0xffff8800b09d1180> lustre_inode_cache 
   Owner: pid=32213 cmd=mrename
    ... 9 pids. Youngest,oldest: 32261, 32227  Ran ms ago: 20, 134
        sorted by ran_ago, youngest first
      [32261, 32257, 32253, 32252, 32251, 32166, 32239, 32231, 32227]
  -- <struct mutex 0xffff8800b0a11180> lustre_inode_cache 
   Owner: pid=32255 cmd=touch
    ... 3 pids. Youngest,oldest: 32265, 32260  Ran ms ago: 19, 27
        sorted by ran_ago, youngest first
      [32265, 32264, 32260]
  -- <struct mutex 0xffff8800b09d1980> lustre_inode_cache 
   Owner: pid=32209 cmd=mrename
    ... 10 pids. Youngest,oldest: 32259, 32212  Ran ms ago: 41, 181
        sorted by ran_ago, youngest first
      [32259, 32246, 32178, 32234, 32232, 32228, 32220, 32222, 32216,
       32212]
  -- <struct mutex 0xffff8800b0a11980> lustre_inode_cache 
   Owner: pid=21846 cmd=mrename
    ... 15 pids. Youngest,oldest: 23601, 21888  Ran ms ago: 239469, 244115
        printing 10 out of 15
        sorted by ran_ago, youngest first
      [23601, 22744, 22710, 22683, 22037, <5 skipped>, 5199, 21904,
       21901, 21896, 21888]
  -- <struct mutex 0xffff88008eac7180> lustre_inode_cache 
   Owner: pid=21846 cmd=mrename
    ... 1 pids. Youngest,oldest: 21846, 21846  Ran ms ago: 243870, 243870
        sorted by ran_ago, youngest first
      [21846]
  -- <struct mutex 0xffff8800aa6d6478> kmalloc-2048 
   Owner: pid=32178 cmd=mrename
    ... 1 pids. Youngest,oldest: 32199, 32199  Ran ms ago: 38, 38
        sorted by ran_ago, youngest first
      [32199]
  -- <struct mutex 0xffff8800b60e8c78> kmalloc-2048 
   Owner: pid=21846 cmd=mrename
    ... 8 pids. Youngest,oldest: 22500, 21855  Ran ms ago: 242611, 244005
        sorted by ran_ago, youngest first
      [22500, 22445, 22167, 22079, 22076, 21937, 21862, 21855]

 =============== Waiting in schedule_timeout ================
    ... 1 pids. Youngest,oldest: 5262, 5262  Ran ms ago: 24, 24
        sorted by ran_ago, youngest first
      [5262]

*** Threads that own resources the other threads are waiting on ***

PID=32209  CPU=0 CMD=mrename
  #0   __schedule+0x2e2
  #1   schedule+0x29
  #2   schedule_timeout+0x13f
  #3   ptlrpc_set_wait+0x7cf
  #4   ptlrpc_queue_wait+0x86
  #5   ldlm_cli_enqueue+0x424
  #6   mdc_enqueue_base+0x37a
  #7   mdc_intent_lock+0x135
  #8   lmv_intent_remote+0x5de
  #9   lmv_intent_lookup+0x9f9
  #10  lmv_intent_lock+0x26f
  #11  ll_lookup_it.constprop.42+0x727
  #12  ll_lookup_nd+0xb3
  #13  lookup_real+0x1d
  #14  __lookup_hash+0x42
  #15  lookup_slow+0x42
  #16  link_path_walk+0x81f
  #17  path_lookupat+0x7a
  #18  filename_lookup+0x2b
  #19  user_path_parent+0x47
  #20  SYSC_renameat2+0x97
  #21  sys_renameat2+0xe
  #22  sys_rename+0x1e
  #23  system_call_fastpath+0x1f, 477 bytes of data
{32259, 32228, 32232, 32234, 32178, 32212, 32246, 32216, 32220, 32222}

PID=32178  CPU=0 CMD=mrename
  #0   __schedule+0x2e2
  #1   schedule_preempt_disabled+0x39
  #2   __mutex_lock_slowpath+0x13a
  #3   mutex_lock+0x2d
  #4   lock_rename+0x93
  #5   SYSC_renameat2+0x22f
  #6   sys_renameat2+0xe
  #7   sys_rename+0x1e
  #8   system_call_fastpath+0x1f, 477 bytes of data
{32199}

PID=32213  CPU=1 CMD=mrename
  #0   __schedule+0x2e2
  #1   schedule+0x29
  #2   schedule_timeout+0x13f
  #3   ptlrpc_set_wait+0x7cf
  #4   ptlrpc_queue_wait+0x86
  #5   ldlm_cli_enqueue+0x424
  #6   mdc_enqueue_base+0x37a
  #7   mdc_intent_lock+0x135
  #8   lmv_intent_remote+0x5de
  #9   lmv_intent_lookup+0x9f9
  #10  lmv_intent_lock+0x26f
  #11  ll_lookup_it.constprop.42+0x727
  #12  ll_lookup_nd+0x110
  #13  lookup_real+0x1d
  #14  __lookup_hash+0x42
  #15  SYSC_renameat2+0x248
  #16  sys_renameat2+0xe
  #17  sys_rename+0x1e
  #18  system_call_fastpath+0x1f, 477 bytes of data
{32257, 32227, 32261, 32166, 32231, 32239, 32251, 32252, 32253}

PID=21846  CPU=0 CMD=mrename
  #0   __schedule+0x2e2
  #1   schedule_preempt_disabled+0x39
  #2   __mutex_lock_slowpath+0x13a
  #3   mutex_lock+0x2d
  #4   vfs_rename+0x41d
  #5   SYSC_renameat2+0x4d3
  #6   sys_renameat2+0xe
  #7   sys_rename+0x1e
  #8   system_call_fastpath+0x1f, 477 bytes of data
{21888, 21958, 21896, 21901, 5199, 21904, 22037, 21846, 22167, 22744, 22683, 21855, 21921, 21922, 21985, 22500, 21862, 21932, 22445, 23601, 21937, 22710, 22076, 22079}

PID=32255  CPU=3 CMD=touch
  #0   __schedule+0x2e2
  #1   schedule+0x29
  #2   schedule_timeout+0x13f
  #3   ptlrpc_set_wait+0x7cf
  #4   ptlrpc_queue_wait+0x86
  #5   ldlm_cli_enqueue+0x424
  #6   mdc_enqueue_base+0x37a
  #7   mdc_intent_lock+0x135
  #8   lmv_intent_lookup+0x30b
  #9   lmv_intent_lock+0x26f
  #10  ll_lookup_it.constprop.42+0x727
  #11  ll_lookup_nd+0xb3
  #12  lookup_real+0x1d
  #13  __lookup_hash+0x42
  #14  lookup_slow+0x42
  #15  link_path_walk+0x81f
  #16  path_openat+0xae
  #17  do_filp_open+0x4d
  #18  do_sys_open+0x124
  #19  sys_open+0x1e
  #20  system_call_fastpath+0x1f, 477 bytes of data
{32264, 32265, 32260}

*** System activities other threads are waiting for ***
  --- Doing schedule_timeout ---
{5262}


+++WARNING+++ Possible hang

******************************************************************************
************************ A Summary Of Problems Found *************************
******************************************************************************
-------------------- A list of all +++WARNING+++ messages --------------------
    Possible hang
------------------------------------------------------------------------------

 ** Execution took   2.42s (real)   1.74s (CPU), Child processes:   0.67s