A fix is available
APAR status
Closed as program error.
Error description
Abend 018A in module BHIP1CCW with reason code 3BF20101 in Reg. 0 and reason code 10 in reg. 15. 3BF20101 - A program check occurred when the paging services was accessing the caller's service list (SL) entry. 10 - The input ECB, TCB, or PSL/SSL failed validity checks. ANALYSIS: Register 3: If branch entry, caller's return address. Register 4: If LIST-FORMAT entry, address of the caller's erroneous page service list entry (PSL) Register 11: If LIST-FORMAT entry, address of the caller's first PSL/SSL entry. BHIP1CCW issues the ?PGSER macro with a FIX or FREE using a PSL. If the frame backing the PSL is stolen, a page fault can be encountered leading to the abend. This is more likely to occur on a system that is memory constrained. VERIFICATION STEPS: In syslog, check for a PGM that is on the same page as the PSL Example from customer case: Reg. 11 7DEBCC88. 7DEBCB88 7DEBCC87 00000200 2317E800 2317E817 00000000 7DEBCCA0. 23659000 236598B7 80000000 00000000 00000000 00000000 Reg. 4 7DEBCC94. 2317E800 From the Syslog: 009C2E88 PGM 011 00000000_01BD20B6 00060011 04041001 80000000 7DEBC800 <--- page with PSL. 009C2E88 *RCVY PROG 8403C000 2D000810 00000000
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: Users at HBB77A0 and above that use z/OS * * HyperSwap * **************************************************************** * PROBLEM DESCRIPTION: ABEND18A RSN 3BF20101 in BHIP1CCW * **************************************************************** * RECOMMENDATION: * **************************************************************** BHIP1CCW was using non-page fixed storage for a parameter list to PGSER and could encounter ABEND18A reason code 3BF20101.
Problem conclusion
BHIP1CCW is changed to use fixed storage for the parameter list when page fixing the CCW storage.
Temporary fix
Comments
APAR Information
APAR number
OA56387
Reported component name
IOS
Reported component ID
5752SC1C3
Reported release
7A0
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-10-25
Closed date
2019-02-07
Last modified date
2019-03-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UA98494 UA98495
Modules/Macros
BHIP1CCW
Fix information
Fixed component name
IOS
Fixed component ID
5752SC1C3
Applicable component levels
Fix is available
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Document Information
Modified date:
01 March 2019