************************* hanginfo *************************
  /exports/testreports/52418/testresults/racer-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg125-client-timeout-core (3.10.0-7.9-debug) 
 *** UNINTERRUPTIBLE threads, classified ***

 ==================== Waiting on mutexes ====================
  -- <struct mutex 0xffff8800af210188> lustre_inode_cache 
   Owner: pid=785 cmd=mrename
    ... 17 pids. Youngest,oldest: 10545, 796  Ran ms ago: 543500, 586576
        printing 10 out of 17
        sorted by ran_ago, youngest first
      [10545, 7453, 6694, 1247, 1019, <7 skipped>, 823, 827, 818, 821,
       796]
  -- <struct mutex 0xffff8800a95c7c78> kmalloc-2048 
   Owner: pid=759 cmd=mrename
    ... 6 pids. Youngest,oldest: 1062, 851  Ran ms ago: 585933, 586303
        sorted by ran_ago, youngest first
      [1062, 1036, 970, 929, 892, 851]
  -- <struct mutex 0xffff8800af239988> lustre_inode_cache 
   Owner: pid=759 cmd=mrename
    ... 17 pids. Youngest,oldest: 10580, 769  Ran ms ago: 543405, 586641
        printing 10 out of 17
        sorted by ran_ago, youngest first
      [10580, 10528, 10525, 10512, 3631, <7 skipped>, 804, 798, 795,
       784, 769]

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

PID=785  CPU=2 CMD=mrename
  #-1  __pv_queued_spin_lock_slowpath+0x102, 449 bytes of data
  #0   do_raw_spin_lock+0x6d
  #1   _raw_spin_lock_irqsave+0x30
  #2   free_object+0x19
  #3   debug_object_free+0x121
  #4   schedule_timeout+0x156
  #5   wait_woken+0x66
  #6   ptlrpc_set_wait+0x1f1
  #7   ptlrpc_queue_wait+0x86
  #8   mdc_reint+0x22
  #9   mdc_rename+0x3c5
  #10  lmv_rename+0x5fc
  #11  ll_rename+0x555
  #12  vfs_rename+0x885
  #13  SYSC_renameat2+0x4d3
  #14  sys_renameat2+0xe
  #15  sys_rename+0x1e
  #16  system_call_fastpath+0x1f, 477 bytes of data
{827, 835, 836, 837, 963, 839, 796, 7453, 1247, 6694, 812, 10545, 818, 821, 823, 1019, 829}

PID=759  CPU=1 CMD=mrename
  #-1  do_raw_spin_lock+0x37, 449 bytes of data
  #0   _raw_spin_lock_irqsave+0x30
  #1   free_object+0x19
  #2   debug_object_free+0x121
  #3   schedule_timeout+0x156
  #4   wait_woken+0x66
  #5   ptlrpc_set_wait+0x1f1
  #6   ptlrpc_queue_wait+0x86
  #7   mdc_reint+0x22
  #8   mdc_rename+0x3c5
  #9   lmv_rename+0x5fc
  #10  ll_rename+0x555
  #11  vfs_rename+0x885
  #12  SYSC_renameat2+0x4d3
  #13  sys_renameat2+0xe
  #14  sys_rename+0x1e
  #15  system_call_fastpath+0x1f, 477 bytes of data
{769, 834, 966, 970, 1036, 847, 784, 10512, 851, 10580, 795, 10525, 798, 10528, 929, 804, 1062, 1190, 3631, 888, 892, 765, 830}


+++WARNING+++ Possible hang

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

 ** Execution took   2.25s (real)   1.65s (CPU), Child processes:   0.61s