A fix is available
APAR status
Closed as program error.
Error description
An HTT001 abend will occur in the first level z/VM system when running on a Z15 or LinuxONE III machine when a second level guest issues a CP IPL <vdev> DUMP command to a SCSI device. This only occurs with the combination of Z15 hardware and a SCSI standalone dump device. Other levels of hardware and ECKD standalone dump devices are not affected.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: Users on an IBM z15 or LinuxONE III trying * * to use standalone dump to a SCSI device for * * a second level z/VM system are susceptible * * to this problem. * **************************************************************** * PROBLEM DESCRIPTION: * **************************************************************** * RECOMMENDATION: APPLY PTF * **************************************************************** When executing a standalone dump to SCSI DASD of a second level z/VM guest, the z/VM host system abended. This only occurs on IBM Z15 or IBM LinuxOne III machines.
Problem conclusion
A loop was changed such that at the last time through, counters would not be updated that might go past the end of the maximum area size.
Temporary fix
********* * HIPER * ********* FOR RELEASE VM/ESA CP/ESA R640 : PREREQ: VM66248 CO-REQ: NONE IF-REQ: NONE FOR RELEASE VM/ESACP/ESAR710 : PREREQ: VM66248 CO-REQ: NONE IF-REQ: NONE
Comments
APAR Information
APAR number
VM66321
Reported component name
VM CP
Reported component ID
568411202
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-09-13
Closed date
2019-10-02
Last modified date
2020-12-16
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UM35543 UM35544
Modules/Macros
HCPSDT
Fix information
Fixed component name
VM CP
Fixed component ID
568411202
Applicable component levels
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG27M","label":"APARs - z\/VM environment"},"Platform":[{"code":"PF054","label":"z\/OS"}],"Version":"710","Line of Business":{"code":"LOB16","label":"Mainframe HW"}}]
Document Information
Modified date:
12 January 2021