************************* hanginfo *************************
  /exports/testreports/43114/testresults/racer-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg103-client-timeout-core (3.10.0-7.9-debug) 
 *** UNINTERRUPTIBLE threads, classified ***
<struct mutex 0xffff880077b18180>

 ================= Waiting on inode mutexes =================
  -- <struct inode 0xffff880077b180c8> /mnt/lustre/racer0/19
  -- <struct mutex 0xffff880077b18180> lustre_inode_cache 
   Owner: pid=24459 cmd=mrename
    ... 3 pids. Youngest,oldest: 24454, 24729  Ran ms ago: 323288, 323961
        sorted by ran_ago, youngest first
      [24454, 24459, 24729]

 ==================== Waiting on mutexes ====================
  -- <struct mutex 0xffff88012ab13c78> kmalloc-2048 
   Owner: pid=24459 cmd=mrename
    ... 8 pids. Youngest,oldest: 25352, 24602  Ran ms ago: 321361, 324205
        sorted by ran_ago, youngest first
      [25352, 25261, 25093, 24783, 24659, 24870, 24851, 24602]
  -- <struct mutex 0xffff8800b0b50980> lustre_inode_cache 
   Owner: pid=24729 cmd=mrename
    ... 13 pids. Youngest,oldest: 27841, 24765  Ran ms ago: 313369, 323666
        printing 10 out of 13
        sorted by ran_ago, youngest first
      [27841, 26627, 25087, 25003, 24816, <3 skipped>, 24690, 24749,
       24846, 24769, 24765]

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

PID=24729  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
{24769, 27841, 26627, 24805, 25003, 24749, 24846, 24816, 24690, 24794, 24763, 24765, 25087}

PID=24459  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
{25093, 24454, 24870, 25352, 24459, 25261, 24783, 24851, 24659, 24729, 24602}


+++WARNING+++ Possible hang

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

 ** Execution took   1.16s (real)   0.87s (CPU), Child processes:   0.29s