************************* hanginfo *************************
  /exports/testreports/47154/testresults/racer-zfs-centos7_x86_64-centos7_x86_64/oleg138-client-timeout-core (3.10.0-7.9-debug) 
 *** UNINTERRUPTIBLE threads, classified ***

 ================== Waiting in io_schedule ==================
    ... 18 pids. Youngest,oldest: 11332, 9766  Ran ms ago: 317230, 928698
        printing 10 out of 18
        sorted by ran_ago, youngest first
      [11332, 11262, 13541, 10027, 31164, <8 skipped>, 10497, 10276,
       10206, 5311, 9766]

 ==================== Waiting on mutexes ====================
  -- <struct mutex 0xffff88012e6d03e0> lustre_inode_cache 
   Owner: pid=10497 cmd=dd
    ... 16 pids. Youngest,oldest: 21737, 10556  Ran ms ago: 916358, 927909
        printing 10 out of 16
        sorted by ran_ago, youngest first
      [21737, 21728, 21422, 21300, 10880, <6 skipped>, 10696, 10682,
       10580, 10573, 10556]


 ********  Non-classified UN Threads ********** 1 in total

------- 1 stacks like that: ----------
  #0   __schedule
  #1   schedule
  #2   vvp_io_write_start
  #3   cl_io_start
  #4   cl_io_loop
  #5   ll_file_io_generic
  #6   do_file_write_iter
  #7   ll_file_write_iter
  #8   ll_file_aio_write
  #9   ll_file_write
  #10  vfs_write
  #11  sys_write
  #12  system_call_fastpath

   ........................
     dd                             1 times

   ... PIDs ... 
      10105 

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

PID=10497  CPU=2 CMD=dd
  #0   __schedule+0x2e2
  #1   schedule+0x29
  #2   schedule_timeout+0x209
  #3   io_schedule_timeout+0xad
  #4   io_schedule+0x18
  #5   bit_wait_io+0x11
  #6   __wait_on_bit_lock+0x5f
  #7   __lock_page+0x74
  #8   truncate_inode_pages_range+0x79a
  #9   truncate_pagecache+0x47
  #10  vvp_io_setattr_end+0xa4
  #11  cl_io_end+0x5c
  #12  cl_io_loop+0xad
  #13  cl_setattr_ost+0x2af
  #14  ll_setattr_raw+0x1430
  #15  ll_setattr+0x56
  #16  notify_change+0x309
  #17  do_truncate+0x75
  #18  do_sys_ftruncate.constprop.17+0x120
  #19  sys_ftruncate+0xe
  #20  system_call_fastpath+0x1f, 477 bytes of data
{10880, 10562, 11076, 10696, 10573, 10580, 11035, 10912, 21728, 10855, 21737, 21422, 21300, 10682, 11259, 10556}

*** System activities other threads are waiting for ***
  --- Doing io_schedule ---
{10497, 11332, 10908, 10461, 10206, 17251, 10276, 13541, 9766, 10214, 10027, 11373, 10035, 15862, 9403, 31164, 11262, 5311}


+++WARNING+++ Possible hang

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

 ** Execution took   2.35s (real)   1.69s (CPU), Child processes:   0.63s