Documentation/kmsg/s390/cpum_sf

   1 /*?
   2  * Text: "The sampling buffer limits have changed to: min=%lu max=%lu (diag=x%lu)\n"
   3  * Severity: Informational
   4  * Parameter:
   5  *   @1: minimum size in sample-data-blocks
   6  *   @2: maximum size in sample-data-blocks
   7  *   @3: size factor for buffering diagnostic-sampling data entries
   8  * Description:
   9  * The minimum or maximum size limit for the sampling facility buffer was
  10  * changed.  The change is effective immediately.
  11  * User action:
  12  * None.
  13  */
  14
  15 /*?
  16  * Text: "Switching off the sampling facility failed with rc=%i\n"
  17  * Severity: Error
  18  * Parameter:
  19  *   @1: error condition
  20  * Description:
  21  * The CPU-measurement sampling facility could not be switched off and continues
  22  * to run.  For details, see LOAD SAMPLING CONTROLS in
  23  * "The Load-Program-Parameter and the CPU-Measurement Facilities", SA23-2260.
  24  * User action:
  25  * If this problem persists, reboot your Linux instance.
  26  */
  27
  28 /*?
  29  * Text: "Sample data was lost\n"
  30  * Severity: Error
  31  * Description:
  32  * Sample data was lost because of machine-internal high-priority activities.
  33  * The sampling facility is stopped.
  34  * User action:
  35  * End all performance measurement sessions.  Discard the measurement data,
  36  * which are likely to be flawed.  Repeat your measurements.
  37  * If the problem persists, contact your hardware administrator.
  38  */
  39
  40 /*?
  41  * Text: "Sampling facility support for perf is not available: reason=%04x\n"
  42  * Severity: Error
  43  * Parameter:
  44  *   @1: reason code
  45  * Description:
  46  * The device driver could not initialize the sampling facility support.
  47  * Possible reason codes are:
  48  * 0001: The device driver failed to query CPU-measurement sampling facility
  49  *       information.
  50  *
  51  * 0002: The device driver does not support the basic-sampling function that
  52  *       is available on the LPAR within which the Linux instance runs.
  53  *
  54  * 0003: The device driver could not register to receive CPU-measurement alerts.
  55  *       A possible cause of this problem is memory constraints.
  56  *
  57  * 0004: The device driver could not register the Performance Measurement Unit
  58  *       (PMU) for the CPU-measurement sampling facility.
  59  *       A possible cause of this problem is memory constraints.
  60  * User action:
  61  * Consider assigning more memory to your Linux instance.
  62  */
  63
  64 /*?
  65  * Text: "Loading sampling controls failed: op=%i err=%i\n"
  66  * Severity: Error
  67  * Parameter:
  68  *   @1: Type of operation
  69  *   @2: Error condition
  70  * Description:
  71  * The sampling facility support could not load sampling controls to enable
  72  * (operation type 1) or disable (operation type 2) the CPU-measurement sampling
  73  * facility.  For details of the error condition, see LOAD SAMPLING CONTROLS in
  74  * "The Load-Program-Parameter and the CPU-Measurement Facilities", SA23-2260.
  75  * User action:
  76  * If the problem persists, reboot your Linux instance.
  77  */
  78
  79 /*?
  80  * Text: "A sampling buffer entry is incorrect (alert=0x%x)\n"
  81  * Severity: Error
  82  * Parameter:
  83  *   @1: Alert code
  84  * Description:
  85  * An incorrect sampling facility buffer entry was detected. The alert code
  86  * indicates the root cause, for example, an incorrect entry address or an
  87  * incorrect sample-data-block-table entry.
  88  * User action:
  89  * End active performance measurement sessions, for example, perf processes. If
  90  * the problem persists, reboot your Linux instance.
  91  */
  92
  93 /*?
  94  * Text: "Registering for s390dbf failed\n"
  95  * Severity: Error
  96  * Description:
  97  * The device driver failed to register for the s390 debug feature.  You will
  98  * not receive any debug information.  A possible cause of this problem is
  99  * memory constraints.
 100  * User action:
 101  * Consider assigning more memory
 102  * to your Linux instance.
 103  */
 104 /*? Text: "%s: %d output lines suppressed due to ratelimiting\n" */