BC3

Explanation
The JES3 dump job server address space encountered
an error. The abend reason code identifies the specific error. Code
Explanation
01
The ASEXT macro returned a non-zero return code while the dump
job server space was attempting to extract the address space parameters.
Registers 2 and 3 when the BC3 abend is issued contain the return
and reason codes from the ASEXT macro call.
02
The address of the extracted parameter string returned from the
ASEXT macro is zero.
03
The ALESERV macro returned a non-zero return code while the dump
job server space was attempting to add JES3's ALET to its access list.
 Registers 2 and 3 when the BC3 abend is issued contain the return
and reason codes from the ALESERV macro call.
04
The ALESERV macro returned a non-zero return code while the dump
job server address space was attempting to extract its STOKEN.  Registers
2 and 3 when the BC3 abend is issued contain the return and reason
codes from the ALESERV macro call.
05
The ALESERV macro returned a non-zero return code while the dump
job server address space was attempting to extract JES3's STOKEN.
 Registers 2 and 3 when the BC3 abend is issued contain the return
and reason codes from the ALESERV macro call.
06
The STOKEN associated with the JES3 address space that started
the dump job server address space is not the same as the current JES3
address space.
07
The STIMERM macro returned a non-zero return code while the dump
job server address space was attempting to setup status monitoring
for the JES3 address space. Register 2 when the BC3 abend is issued
contains the return code from the STIMERM macro call.
08
The dump job server's ECB was posted with an incorrect function
code. Register 2 when the BC3 abend is issued contains the function
code.

System action
A dump of the JES3 dump job server address and
the JES3 address space is taken. The dump job server address space
ends and the Dump Job DSP in the JES3 address space that controls
the server address space also ends.

Programmer response
Search problem reporting databases for a
fix for the problem. If no fix exists, contact the IBM® Support Center and provide the following
documentation: The BC3 abend reason code.
The information in registers 2 and 3 at the time of error (if
applicable).
The dump taken by the JES3 server address space.
The SYSLOG around the time of error.
The *CALL DJ command that caused the JES3 dump job server address
space to be started.
The dump job DSP log (if available).

Source
JES3