************************* hanginfo *************************
  /exports/testreports/49254/testresults/racer-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg302-client-timeout-core (3.10.0-7.9-debug) 
 *** UNINTERRUPTIBLE threads, classified ***

 ==================== Waiting on mutexes ====================
  -- <struct mutex 0xffff880089711180> lustre_inode_cache 
   Owner: pid=4740 cmd=mrename
    ... 2 pids. Youngest,oldest: 5275, 4740  Ran ms ago: 1537990, 1538387
        sorted by ran_ago, youngest first
      [5275, 4740]
  -- <struct mutex 0xffff88012e790180> lustre_inode_cache 
   Owner: pid=5275 cmd=mrename
    ... 15 pids. Youngest,oldest: 17682, 5284  Ran ms ago: 1474175, 1538556
        printing 10 out of 15
        sorted by ran_ago, youngest first
      [17682, 15660, 15062, 8528, 5396, <5 skipped>, 5324, 5344, 5326,
       5304, 5284]
  -- <struct mutex 0xffff8800aa64bc78> kmalloc-2048 
   Owner: pid=4740 cmd=mrename
    ... 7 pids. Youngest,oldest: 6142, 5186  Ran ms ago: 1534870, 1538777
        sorted by ran_ago, youngest first
      [6142, 5378, 4951, 4964, 4929, 4863, 5186]

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

PID=5275  CPU=2 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
{5344, 5284, 5324, 15660, 5326, 8528, 5265, 5553, 17682, 5396, 15062, 5304, 5561, 5240, 5309}

PID=4740  CPU=1 CMD=mrename
  #0   __schedule+0x2e2
  #1   schedule_preempt_disabled+0x39
  #2   __mutex_lock_slowpath+0x13a
  #3   mutex_lock+0x2d
  #4   lock_rename+0xda
  #5   SYSC_renameat2+0x22f
  #6   sys_renameat2+0xe
  #7   sys_rename+0x1e
  #8   system_call_fastpath+0x1f, 477 bytes of data
{4929, 5186, 5378, 4740, 4964, 4951, 5275, 6142, 4863}


+++WARNING+++ Possible hang

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

 ** Execution took   1.63s (real)   1.18s (CPU), Child processes:   0.44s