AMPX036I Assertion Failure Checking Error Starting OSD Device
APAR Identifier ...... PQ75472 Last Changed ........ 04/01/20
AMPX036I ASSERTION FAILURE CHECKING ERROR STARTING OSD DEVICE
Symptom ...... IN INCORROUT Status ........... CLOSED PER
Severity ................... 3 Date Closed ......... 04/01/20
Component .......... 5735FAL00 Duplicate of ........
Reported Release ......... 3A0 Fixed Release ............ 999
Component Name TCP/IP V2 FOR V Special Notice
Current Target Date .. Flags
SCP ...................
Platform ............
Status Detail: APARCLOSURE - APAR is being closed.
PE PTF List:
PTF List:
Release 3A0 : PTF not available yet
Release 430 : PTF not available yet
Parent APAR:
Child APAR list:
ERROR DESCRIPTION:
OSD devices intermittently fail to initialize to a READY state.
The z/VM TCPIP server console shows the following Pascal
assertion error when this condition is detected:
AMPX036I ASSERTION FAILURE CHECKING ERROR
TRACE BACK OF CALLED ROUTINES
ROUTINE STMT AT ADDRESS IN MODULE
STARTOSDWRITE 3 00C5F640 TCTOOSD_TOO
SENDIPREQUEST 37 00C62226 TCTOOSD_TOO
INITSETIP 2 00C6206C TCTOOSD_TOO
PROCESSREADINT 95 00C60806 TCTOOSD_TOO
TOOSD 77 00C64EBC TCTOOSD_TOO
SCHEDULER 128 00BD97DC TCSCHED_SCH
<MAIN-PROGRAM> 22 00B43284 TCPIP
VSPASCAL 00CCCFC2
LOCAL FIX:
PROBLEM SUMMARY:
****************************************************************
* USERS AFFECTED: All TCP/IP users of OSA-Express OSD devices *
****************************************************************
* PROBLEM DESCRIPTION: *
****************************************************************
* RECOMMENDATION: APPLY PTF *
****************************************************************
The OSD device driver expects that interrupts for READ and WRITE
control responses will come back in the same order that the
requests were sent out. If this is not the case, an assertion
failure can occur or a response is lost.
PROBLEM CONCLUSION:
The OSD device driver was updated to support responses for
READ and WRITE control requests coming in any order. Requests
will be queued with a sequence number and responses will be
matched up to the sequence number when the response arrives.
In addition, the StartLAN and Query IP Assist requests were
changed to use the OSD scheduler (rather than being "stand
alone" requests issued during initialization).
TEMPORARY FIX:
COMMENTS:
MODULES/MACROS: ALLMACRO MSTCP TCBASTY TCIPUP TCMPCOCO
TCPEQUAT TCPIP TCPOCO TCPRINT TCTOOSD
SRLS: NONE
RTN CODES:
CIRCUMVENTION:
MESSAGE TO SUBMITTER:
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