************************* hanginfo *************************
  /exports/testreports/46994/testresults/racer-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg243-client-timeout-core (3.10.0-7.9-debug) 
 *** UNINTERRUPTIBLE threads, classified ***

 ==================== Waiting on mutexes ====================
  -- <struct mutex 0xffff880077982980> lustre_inode_cache 
   Owner: pid=11597 cmd=mrename
    ... 5 pids. Youngest,oldest: 12037, 11597  Ran ms ago: 1125144, 1128317
        sorted by ran_ago, youngest first
      [12037, 11858, 11815, 11994, 11597]
  -- <struct mutex 0xffff88012a540478> kmalloc-2048 
   Owner: pid=11597 cmd=mrename
    ... 10 pids. Youngest,oldest: 11985, 11610  Ran ms ago: 1125142, 1128621
        sorted by ran_ago, youngest first
      [11985, 11788, 11974, 12079, 11965, 11821, 11763, 11738, 11643,
       11610]
  -- <struct mutex 0xffff8800add58980> lustre_inode_cache 
   Owner: pid=12037 cmd=mrename
    ... 8 pids. Youngest,oldest: 19625, 12038  Ran ms ago: 1092882, 1127160
        sorted by ran_ago, youngest first
      [19625, 16103, 14796, 14848, 11968, 12155, 12055, 12038]

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

PID=11597  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
{12037, 11974, 11815, 11788, 11597, 11610, 11821, 12079, 11985, 11858, 11763, 11738, 11994, 11643, 11965}

PID=12037  CPU=3 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
{11968, 14848, 12038, 16103, 19625, 14796, 12055, 12155}


+++WARNING+++ Possible hang

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

 ** Execution took   1.34s (real)   0.99s (CPU), Child processes:   0.34s