z/VM: System Messages and Codes Š CP - z/VM - IBM

ISC001 IUB001
will not be totally cleared as requested.
Examine the internal trace table and storage dump to
determine why a return code other than 8 was received
from HCPIOSFD.
ISC001
Explanation: (soft abend) The address of the prefix
page could not be found for a request to update control
register 6 for a dedicated processor.
User Response: Verify register 1 contains a valid
processing unit address. Contact the IBM support
personnel.
IST001
Explanation: The RDEV for the DASD on which the
SYSRES volume is mounted cannot be located or is not
an owned volume.
User Response: Verify that the volume serial number
on the SYSRES volume from which the IPL was
attempted is the same as that specified in the field
SYSVOL. If the volume serial number is not the same, a
stand-alone utility (such as DDRXA) may have altered
it, or the image of the same nucleus saved on the
SYSRES may have been partially destroyed and the
SYSRES specification altered. Load or restore the
nucleus from a backup copy to the SYSRES volume
and try to IPL again.
IST002
Explanation: The RDEV block for the IPLed device is
not type CLASDASD or it does not have the same
device type the user specified at system generation
time.
User Response: Check the SYSDTYP in the SYSCM
area against the SYSRES volume from which the IPL
was attempted. If the RDEV does not indicate the actual
device type correctly, mount the pack elsewhere and try
again. If SYSDTYP does not indicate the device type
correctly, load and restore the nucleus from a backup
copy to the SYSRES volume and try to IPL again.
IST003
Explanation: A call to HCPPTRSA to get a PGMBK
for a segment was made with an incorrect address in
R1. HCPPTRSA returned a condition code of 1.
User Response: Examine the contents of the dump.
Check the validity of the address in R1.
ISU001
Explanation: The system time-of-day (TOD) clock is
not operational.
User Response: Contact your IBM support personnel
58 z/VM: System Messages and Codes — CP
for hardware support to fix the clock.
ITM003
Explanation: The system time-of-day (TOD) clock is
not operational.
User Response: Contact your IBM support personnel
for hardware support to fix the clock.
IUA001
Explanation: (soft abend) An IUCV function was
issued from CP (either by a CP system service or by
IUCV itself), and CP detected a program check
condition. If a virtual machine issued the IUCV function,
CP would issue a program check. However, since the
IUCV function was issued from within CP, this soft
abend was issued instead of the exception.
User Response: Determine the function executing and
who invoked IUCV (a CP system service or IUCV itself)
using the IUSBK pointed to by R8. Refer to z/VM: CP
Programming Services to determine the CP system
service associated with the code found in the IUSBK. If
the code is 0, a virtual machine issued the function
using IUCV. Examine the value in R0 to find the
program interrupt code.
IUA002
Explanation: (soft abend) A CP system service
invoked an IUCV function that required a buffer, but the
CP system service did not supply one.
User Response: Determine the CP system service
that invoked IUCV and the function executing using the
IUSBK pointed to by R8. Refer to z/VM: CP
Programming Services to determine the CP system
service associated with the code found in the IUSBK.
IUA003
Explanation: (soft abend) An IUCV function was
issued by a system service while an IUCV RTRVBFR
was in progress.
User Response: Identify the system service that is
behaving incorrectly. R10 holds the IUCVB of the
system service. R9 holds the address of the CCTBK of
the system service. Also check the contents of
SAVEWRK1, pointed to by R13, which holds the unique
function code of the system service.
IUB001
Explanation: (soft abend) The IUCV PDEBK structure
is incorrect. The target’s side does not correspond with
the invoker’s side.
User Response: Determine who invoked IUCV using
the IUSBK pointed to by R10. Examine the condition
code: