00E50002

Explanation
  A release latch request was issued for a latch
not held by the requesting execution unit. This is a DB2® subsystem error.

System action
  The requesting execution unit is abended.

Operator response
  Notify the system programmer of the abend.

System programmer response
  Collect the necessary
diagnostic material. If you suspect an error in DB2, you might need to report the problem. For information about identifying and reporting the
problem, see Collecting diagnostic data.

Problem determination
  This abend is issued
from within the in-line expansions of the latch release macros DSNVUNLS
and DSNVUNLX and from module DSNVXUL0.
  At the time of the
abend, diagnostic information is placed in general registers 2 through
5.
  If the abend is issued from the in-line expansion macros,
then the registers are set as follows: Register
Contents
2
Latch class number (1-32)
3
Address of the latch
4, 5
Latch class name (1-8 characters, left justified)

  If the abend is issued from DSNVXUL0, then
the registers are set as follows: Register
Contents
2
Latch class number (1-32)
3
Address of the latch
4
Address of the holder of the latch
5
First waiter for the latch

  Registers 2-12 of the abending module were
saved in the save area pointed to by register 13 at the time the error
was detected.
  It is the responsibility of the requesting resource
manager to have functional recovery in place while holding a latch.
A record is written to SYS1.LOGREC, and a DB2 SVC dump is requested. Examine SYS1.LOGREC
and, if available, the SVC dump to determine the subcomponent and
module requesting the latch.