Yesterday I needed to turn on gtf tracing to catch a problem involving about 80
address spaces. I am tracing user records issued at a really rapid rate by
those 80 asids.
Unfortunately GTF terminates itself with a dump of title DUMP OF GTF MODULE
AHLTUSR. Again unfortunately, that dump does not contain any system trace
table. All I have for debugging is the (2) logrec entries for this:
PSW: 04041001 80000000 00000000 05D02EB8
INSTRUCTION LENGTH: 06 INTERRUPT CODE: 0038
FAILING INSTRUCTION TEXT: 0090B904 0085D9F8 66B4E000
TRANSLATION EXCEPTION ADDRESS: 1E909E74_00023000
BREAKING EVENT ADDRESS: 00000000_05D02E90
AR/GR 0-1 008FE040/00000000_01FF1EA8 00000000/0000001C_1C000000
AR/GR 2-3 00000000/20202020_021AB028 00000000/0C0C0C0C_02184400
AR/GR 4-5 00000000/7F3EF44E_02184988 00000000/00000000_0000008D
AR/GR 6-7 00000000/00000000_02184400 00000000/7F3EF5A4_00000000
AR/GR 8-9 00000000/00000000_0000008D 00000000/24080028_00F96650
AR/GR 10-11 00000000/00000000_8296F76E 00000000/00000000_02184988
AR/GR 12-13 00000000/00000000_05D027A8 00000000/00000000_0244A048
AR/GR 14-15 00000000/1E909E74_00023858 00000000/00000000_00000100
HOME ASID: 00A1 PRIMARY ASID: 00A1 SECONDARY ASID: 00A1
PKM: 00C0 AX: 0000 EAX: 0000
THIS TASK'S ASID/TCB: 00A1/008E33D0
The error occurs on an MVCK instruction. The problem is R14, which contains
'1E909E74_00023858', obviously a 64bit address that isn't getmained. The code
that does the gtrace macros reliably fails on a 1.13 system, but runs on 1.12
and below. There is no maintenance that I could find that describes such an
abend. UA60894 (the only one that might fit despite running only one instance
of gtf) is installed.
Has anbody else seen this? Or has an idea how RE could get corrupted by invalid
gtrace invocations? Or is this a real, new bug, and I have to find someone who
would open a PMR (we are a business partner running on an ADCD system and don't
have a customer number to open PMRs with).
Thanks in advance, Barbara
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN
