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[Tim Gardner <tim.gardner@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1553171

Title:
  eckd dasd can not be set online when using "use_diag=1" mode

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released

Bug description:
  == Comment: #0 - Peter Schmidt <PSCHMIDT@xxxxxxxxxx> - 2016-03-01 04:41:23 ==
  ---Problem Description---
  eckd dasd can not be set online when using "use_diag=1" mode
   
  Contact Information = pschmidt@xxxxxxxxxx 
   
  ---uname output---
  Linux s3515023 4.4.0-7-generic #22-Ubuntu SMP Thu Feb 18 21:13:28 UTC 2016 s390x s390x s390x GNU/Linux
   
  Machine Type = s390 z/VM Guest 
   
  ---Debugger---
  A debugger is not configured
   
  ---Steps to Reproduce---
   try to set ldl formatted eckd dasd online when use_diag is enabled
  use ldl formatted disk <dasd>
  load driver    "modprobe dasd_diag_mod"
  set dasd offline "chccwdev -d 0.0.<dasd>"
  enable diag mode for this dasd "/sys/bus/ccw/devices/0.0.<dasd># echo 1 > use_diag"
  set dasd online "chccwdev -e 0.0.<dasd>"

  ERROR appears 
  root@xxxxxx:/sys/bus/ccw/devices/0.0.<dasd># chccwdev -e 0.0.<dasd>
  Setting device 0.0.<dasd> online
  Failed (Operation not supported)
  Failed

   
  Stack trace output:
   no
   
  Oops output:
   no
   
  System Dump Info:
    The system is not configured to capture a system dump.
   
  Device driver error code:
   -95

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