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GNU Emacs version 18.55.1
Running on a VAX 8650 under VMS 5.3

Bug: divide by zero under proper circumstances causes fatal error 
	(program is aborted) and VMS traceback

To reproduce bug:

Start GNU Emacs on VMS system with -q option (no init file), then type:

	M-x lisp-interaction-mode<CR>(/ 5 0)<LF><LF>

where <CR> is carriage return character and <LF> is linefeed character.
After the first linefeed, "Arithmetic error" appears in the echo area.
The second linefeed results in the following traceback:

%SYSTEM-F-INTDIV, arithmetic trap, integer divide by zero at PC=000706CF, PSL=03C00002
%TRACE-F-TRACEBACK, symbolic stack dump follows
module name     routine name                     line       rel PC    abs PC

DATA            arith_driver                     2897      000000E3  000706CF
DATA            Fquo                             2946      00000017  0007077F
EVAL            Feval                            2897      0000034A  00075DD6
LREAD           readevalloop                     2393      00000108  0007AAD0
LREAD           Feval_region                     2453      000000BA  0007AC62
EVAL            Ffuncall                         3225      000002EC  000765A8
BYTECODE        Fbyte_code                       1934      00000436  0007F1B6
EVAL            Feval                            2930      00000466  00075EF2
EVAL            Fprogn                           1837      000000E7  0007435F
EVAL            funcall_lambda                   3355      00000196  000769C6
EVAL            Ffuncall                         3245      000003A8  00076664
CALLINT         Fcall_interactively              2393      00000987  00073EAB
KEYBOARD        Fcommand_execute                 4046      00000104  00059D80
KEYBOARD        command_loop_1                   3230      00000458  000592F8
EVAL            internal_condition_case          2528      00000093  0007543F
KEYBOARD        command_loop_2                   2995      00000031  00058D9D
EVAL            internal_catch                   2346      00000063  00074F43
KEYBOARD        Frecursive_edit                  2865      000000E2  00058AA2
EMACS           main                             3056      00000463  000585CF



	Dave Hollenberg
	(213) 822-1511 x704

Internet:	dhollen@isi.edu
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