A fix is available
APAR status
Closed as program error.
Error description
ABENDPRG004 after configuring an FCP channel path offline from the HMC. The FCP channel path was in use by an EDEVICE and when it was removed a protection exception occurred while trying to store data in the associated channel activity block (CHABK) because the address found for it was zero.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of EDEVICEs * **************************************************************** * PROBLEM DESCRIPTION: * **************************************************************** * RECOMMENDATION: APPLY PTF * **************************************************************** While an FCP channel path is in use by at least one EDEVICE, configuring the channel path offline may result in ABENDPRG004. Code added by VM66095 to track chpid activity (even when Monitor is not running) incorrectly uses a field in the RDEV which is zero. This results in using an address of zero for the CHABK to log the chpid activity which results in the protection exception.
Problem conclusion
The code in HCPSZP has been corrected. When RDEVCHP0 is zero and RDEVPAM indicates there is no valid path available, the chpid activity will not be recorded.
Temporary fix
********* * HIPER * ********* FOR RELEASE VM/ESA CP/ESA R640 : PREREQ: VM66095 CO-REQ: NONE IF-REQ: NONE FOR RELEASE VM/ESACP/ESAR710 : PREREQ: NONE CO-REQ: NONE IF-REQ: NONE
Comments
APAR Information
APAR number
VM66304
Reported component name
VM CP
Reported component ID
568411202
Reported release
640
Status
CLOSED PER
PE
YesPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-07-09
Closed date
2019-07-17
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:
UM35491 UM35492
Modules/Macros
HCPSZP
Fix information
Fixed component name
VM CP
Fixed component ID
568411202
Applicable component levels
Fix is available
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Document Information
Modified date:
12 January 2021