Someone else was trying to do something, and I tried something and got
a crash; mabshoff asked me to post a backtrace. (So if it is very
long, don't blame me ;-))
This is probably invalid mathematics that should raise an exception,
but it causes a crash instead on my OS X 10.4. The other person also
had this problem on Linux. mabshoff speculated it is a 32-bit/64-bit
issue, since it raises an exception for him.
Code:
K.<x>=QQ['X']; p=EuclideanDomainElement(K);
q=EuclideanDomainElement(K); (x^3+p*x+q).quo_rem(3*x^2+p)
Backtrace:
{{{
----------------------------------------------------------------------
| SAGE Version 2.10.3, Release Date: 2008-03-11 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
/Applications/sage/local/bin/sage-gdb-pythonstartup
GNU gdb 6.3.50-20050815 (Apple version gdb-696) (Sat Oct 20 18:16:54
GMT 2007)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for
details.
This GDB was configured as "i386-apple-darwin"...Reading symbols for
shared libraries .. done
Reading symbols for shared libraries . done
[snipped]
----------------------------------------------------------------------
| SAGE Version 2.10.3, Release Date: 2008-03-11 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage:
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x00000000
0x00000000 in ?? ()
(gdb) bt full
#0 0x00000000 in ?? ()
No symbol table info available.
#1 0x02b6fe98 in
__pyx_f_4sage_9structure_7element_13ModuleElement__sub_c_impl
(__pyx_v_left=0xb971690, __pyx_v_right=0xa7a1de0) at sage/structure/
element.c:5681
__pyx_r = (struct __pyx_obj_4sage_9structure_7element_ModuleElement
*) 0xb986030
__pyx_1 = (PyObject *) 0xb986030
__pyx_2 = (PyObject *) 0x0
#2 0x02b81fd3 in
__pyx_pf_4sage_9structure_7element_11RingElement___mul__
(__pyx_v_self=0xb971690, __pyx_v_right=0xa7a1de0) at sage/structure/
element.c:16691
__pyx_3 = (PyObject *) 0x0
__pyx_r = (PyObject *) 0x1
__pyx_1 = 1
__pyx_2 = (PyObject *) 0xb971690
#3 0x000066cb in PyObject_Call (func=0xb971550, arg=0xb960b70,
kw=0x0) at Objects/abstract.c:1860
result = (PyObject *) 0x43bc71c
call = (ternaryfunc) 0x2bad440
<__pyx_vtable_4sage_9structure_7element_Element>
func = (PyObject *) 0x43bc720
#4 0x0004d930 in call_maybe (o=0xa7a1de0, name=0xde708 "__rmul__",
nameobj=0x11aa20, format=0xe3618 "(O)") at Objects/typeobject.c:967
va = 0xbfffc680 "ê\026ó\vp\vñ\vp\vñ\v®ó\v‡\035z\n0PP"
args = (PyObject *) 0xb960b70
func = (PyObject *) 0xb971550
retval = (PyObject *) 0x43bc71c
nameobj = (PyObject **) 0x43bc71c
#5 0x0004f275 in slot_nb_multiply (self=0xb971690, other=0xa7a1de0)
at Objects/typeobject.c:4312
cache_str = (PyObject *) 0x505080
rcache_str = (PyObject *) 0x5050a0
do_other = 1
#6 0x00005fe0 in binary_op1 (v=0xb971690, w=0xa7a1de0, op_slot=8) at
Objects/abstract.c:392
x = (PyObject *) 0x4f1e8
slotv = (binaryfunc) 0x2b81b77
<__pyx_pf_4sage_9structure_7element_11RingElement___mul__>
slotw = (binaryfunc) 0x4f1e8 <slot_nb_multiply>
#7 0x00008a0b in PyNumber_Multiply (v=0xb971690, w=0xa7a1de0) at
Objects/abstract.c:669
result = (PyObject *) 0xb971690
v = (PyObject *) 0xb971690
w = (PyObject *) 0xa7a1de0
#8 0x0006d410 in PyEval_EvalFrameEx (f=0xba20760, throwflag=0) at
Python/ceval.c:1072
stack_pointer = (PyObject **) 0xba20750
next_instr = (unsigned char *) 0xb91fb32 "\027e\a"
opcode = 194451088
oparg = 0
why = WHY_NOT
err = 0
x = (PyObject *) 0x1631c80
v = (PyObject *) 0xb971690
w = (PyObject *) 0xb971690
u = (PyObject *) 0xb971690
t = (PyObject *) 0xb971690
stream = (PyObject *) 0x16264b0
fastlocals = (PyObject **) 0xba20898
freevars = (PyObject **) 0xba20898
retval = (PyObject *) 0x0
tstate = (PyThreadState *) 0x600170
co = (PyCodeObject *) 0xb96f140
instr_ub = -1
instr_lb = 0
instr_prev = -1
first_instr = (unsigned char *) 0xb91fae4 "e"
names = (PyObject *) 0xb9841b0
consts = (PyObject *) 0xb917a80
#9 0x00070b8e in PyEval_EvalCodeEx (co=0xb96f140, globals=0xb965e40,
locals=0xb965e40, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0,
defcount=0, closure=0x0) at Python/ceval.c:2831
f = (PyFrameObject *) 0xba20760
retval = (PyObject *) 0x0
fastlocals = (PyObject **) 0xba20898
freevars = (PyObject **) 0xba20898
tstate = (PyThreadState *) 0x600170
x = (PyObject *) 0x2bad440
u = (PyObject *) 0x0
co = (PyCodeObject *) 0xb96f140
globals = (PyObject *) 0xb971690
locals = (PyObject *) 0x43bc720
args = (PyObject **) 0x0
argcount = 0
kws = (PyObject **) 0x0
kwcount = 0
defs = (PyObject **) 0x0
defcount = 0
closure = (PyObject *) 0x0
#10 0x0006edff in PyEval_EvalFrameEx (f=0xba1d980, throwflag=0) at
Python/ceval.c:494
v = (PyObject *) 0xb965e40
plain = 0
stack_pointer = (PyObject **) 0x0
next_instr = (unsigned char *) 0x66bcb8 "Wd\002"
opcode = 194403904
oparg = 0
why = WHY_NOT
err = 0
x = (PyObject *) 0x0
v = (PyObject *) 0xb965e40
w = (PyObject *) 0xb965e40
u = (PyObject *) 0xb971690
t = (PyObject *) 0xb965e40
stream = (PyObject *) 0x0
fastlocals = (PyObject **) 0xba1dab8
freevars = (PyObject **) 0xba1dad4
retval = (PyObject *) 0x0
tstate = (PyThreadState *) 0x600170
co = (PyCodeObject *) 0x162b7b8
instr_ub = -1
instr_lb = 0
instr_prev = -1
first_instr = (unsigned char *) 0x66bc64 "e"
names = (PyObject *) 0x162a810
consts = (PyObject *) 0x161ab20
#11 0x00070b8e in PyEval_EvalCodeEx (co=0x162b7b8, globals=0x1626030,
locals=0x0, args=0xba12cac, argcount=2, kws=0xba12cb4, kwcount=0,
defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:2831
f = (PyFrameObject *) 0xba1d980
retval = (PyObject *) 0x0
fastlocals = (PyObject **) 0xba1dab8
freevars = (PyObject **) 0xba1dad4
tstate = (PyThreadState *) 0x600170
x = (PyObject *) 0x2bad440
u = (PyObject *) 0x0
co = (PyCodeObject *) 0x162b7b8
globals = (PyObject *) 0xb971690
locals = (PyObject *) 0x43bc720
args = (PyObject **) 0x0
argcount = 2
kws = (PyObject **) 0xba12cb4
kwcount = 0
defs = (PyObject **) 0x0
defcount = 0
closure = (PyObject *) 0x0
#12 0x0006e465 in PyEval_EvalFrameEx (f=0xba12b60, throwflag=0) at
Python/ceval.c:3660
co = (PyCodeObject *) 0x162b7b8
nd = 71026464
globals = (PyObject *) 0x1626030
argdefs = (PyObject *) 0x2bad440
d = (PyObject **) 0x2
n = 2
pfunc = (PyObject **) 0xba12cac
w = (PyObject *) 0xb971690
sp = (PyObject **) 0xba12cb4
stack_pointer = (PyObject **) 0x6a2fc
next_instr = (unsigned char *) 0x162831e "d\005"
opcode = 2
oparg = 1
why = WHY_NOT
err = 0
x = (PyObject *) 0xf6a60
v = (PyObject *) 0x2
w = (PyObject *) 0x2
u = (PyObject *) 0xb971690
t = (PyObject *) 0x2
stream = (PyObject *) 0xb960b70
fastlocals = (PyObject **) 0xba12c98
freevars = (PyObject **) 0xba12cac
retval = (PyObject *) 0x0
tstate = (PyThreadState *) 0x600170
co = (PyCodeObject *) 0x162b728
instr_ub = -1
instr_lb = 0
instr_prev = -1
first_instr = (unsigned char *) 0x162828c "|\001"
names = (PyObject *) 0x162b6f0
consts = (PyObject *) 0x16247b0
#13 0x00070b8e in PyEval_EvalCodeEx (co=0x162b728, globals=0x1626030,
locals=0x0, args=0xba115a8, argcount=3, kws=0xba115b4, kwcount=0,
defs=0x16d24ec, defcount=2, closure=0x0) at Python/ceval.c:2831
f = (PyFrameObject *) 0xba12b60
retval = (PyObject *) 0x0
fastlocals = (PyObject **) 0xba12c98
freevars = (PyObject **) 0xba12cac
tstate = (PyThreadState *) 0x600170
x = (PyObject *) 0x2bad440
u = (PyObject *) 0x0
co = (PyCodeObject *) 0x162b728
globals = (PyObject *) 0xb971690
locals = (PyObject *) 0x43bc720
args = (PyObject **) 0x16d24f4
argcount = 3
kws = (PyObject **) 0xba115b4
kwcount = 0
defs = (PyObject **) 0x16d24ec
defcount = 2
closure = (PyObject *) 0x0
#14 0x0006e465 in PyEval_EvalFrameEx (f=0xba11460, throwflag=0) at
Python/ceval.c:3660
co = (PyCodeObject *) 0x162b728
nd = 71026464
globals = (PyObject *) 0x1626030
argdefs = (PyObject *) 0x2bad440
d = (PyObject **) 0x3
n = 3
pfunc = (PyObject **) 0xba115a8
w = (PyObject *) 0xb971690
sp = (PyObject **) 0xba115b4
stack_pointer = (PyObject **) 0x0
next_instr = (unsigned char *) 0x141aede "}\003"
opcode = 3
oparg = 2
why = WHY_NOT
err = 0
x = (PyObject *) 0x0
v = (PyObject *) 0x3
w = (PyObject *) 0x3
u = (PyObject *) 0xb971690
t = (PyObject *) 0x3
stream = (PyObject *) 0x0
fastlocals = (PyObject **) 0xba11598
freevars = (PyObject **) 0xba115a8
retval = (PyObject *) 0x0
tstate = (PyThreadState *) 0x600170
co = (PyCodeObject *) 0x162b800
instr_ub = -1
instr_lb = 0
instr_prev = -1
first_instr = (unsigned char *) 0x141ae8c "x!"
names = (PyObject *) 0x16247f0
consts = (PyObject *) 0x1629dc8
#15 0x0007038a in PyEval_EvalFrameEx (f=0xba1f140, throwflag=0) at
Python/ceval.c:3650
fastlocals = (PyObject **) 0xba11598
i = 2
f = (PyFrameObject *) 0xba11460
tstate = (PyThreadState *) 0x600170
stack = (PyObject **) 0xb971690
co = (PyCodeObject *) 0x162b800
nd = 71026464
globals = (PyObject *) 0x1626030
argdefs = (PyObject *) 0x2bad440
d = (PyObject **) 0xba11460
n = 2
pfunc = (PyObject **) 0xba1f290
w = (PyObject *) 0xb971690
sp = (PyObject **) 0xba1f298
stack_pointer = (PyObject **) 0xba1f130
next_instr = (unsigned char *) 0x18ffa01 "}\003"
opcode = 195105888
oparg = 1
why = WHY_NOT
err = 0
x = (PyObject *) 0xba11460
v = (PyObject *) 0xba11460
w = (PyObject *) 0xba11460
u = (PyObject *) 0xb971690
t = (PyObject *) 0xba11460
stream = (PyObject *) 0x0
fastlocals = (PyObject **) 0xba1f278
freevars = (PyObject **) 0xba1f290
retval = (PyObject *) 0x0
tstate = (PyThreadState *) 0x600170
co = (PyCodeObject *) 0x162b458
instr_ub = -1
instr_lb = 0
instr_prev = -1
first_instr = (unsigned char *) 0x18ff814 "|"
names = (PyObject *) 0x162e030
consts = (PyObject *) 0x162b420
#16 0x00070b8e in PyEval_EvalCodeEx (co=0x162b458, globals=0x1626030,
locals=0x0, args=0xba13fa0, argcount=2, kws=0xba13fa8, kwcount=0,
defs=0x16d051c, defcount=1, closure=0x0) at Python/ceval.c:2831
f = (PyFrameObject *) 0xba1f140
retval = (PyObject *) 0x0
fastlocals = (PyObject **) 0xba1f278
freevars = (PyObject **) 0xba1f290
tstate = (PyThreadState *) 0x600170
x = (PyObject *) 0x2bad440
u = (PyObject *) 0x0
co = (PyCodeObject *) 0x162b458
globals = (PyObject *) 0xb971690
locals = (PyObject *) 0x43bc720
args = (PyObject **) 0x0
argcount = 2
kws = (PyObject **) 0xba13fa8
kwcount = 0
defs = (PyObject **) 0x16d051c
defcount = 1
closure = (PyObject *) 0x0
#17 0x0006e465 in PyEval_EvalFrameEx (f=0xba13e60, throwflag=0) at
Python/ceval.c:3660
co = (PyCodeObject *) 0x162b458
nd = 71026464
globals = (PyObject *) 0x1626030
argdefs = (PyObject *) 0x2bad440
d = (PyObject **) 0x2
n = 2
pfunc = (PyObject **) 0xba13fa0
w = (PyObject *) 0xb971690
sp = (PyObject **) 0xba13fa8
stack_pointer = (PyObject **) 0xba13e50
next_instr = (unsigned char *) 0x13f3fd1 "\001d\002"
opcode = 2
oparg = 1
why = WHY_NOT
err = 0
x = (PyObject *) 0x1800000
v = (PyObject *) 0x2
w = (PyObject *) 0x2
u = (PyObject *) 0xb971690
t = (PyObject *) 0x2
stream = (PyObject *) 0x18c
fastlocals = (PyObject **) 0xba13f98
freevars = (PyObject **) 0xba13fa0
retval = (PyObject *) 0x0
tstate = (PyThreadState *) 0x600170
co = (PyCodeObject *) 0x162b338
instr_ub = -1
instr_lb = 0
instr_prev = -1
first_instr = (unsigned char *) 0x13f3f4c "|"
names = (PyObject *) 0x162b300
consts = (PyObject *) 0x1629ad0
#18 0x00070b8e in PyEval_EvalCodeEx (co=0x162b338, globals=0x1626030,
locals=0x0, args=0x685264, argcount=2, kws=0x68526c, kwcount=0,
defs=0x16d04fc, defcount=1, closure=0x0) at Python/ceval.c:2831
f = (PyFrameObject *) 0xba13e60
retval = (PyObject *) 0x0
fastlocals = (PyObject **) 0xba13f98
freevars = (PyObject **) 0xba13fa0
tstate = (PyThreadState *) 0x600170
x = (PyObject *) 0x2bad440
u = (PyObject *) 0x0
co = (PyCodeObject *) 0x162b338
globals = (PyObject *) 0xb971690
locals = (PyObject *) 0x43bc720
args = (PyObject **) 0x0
argcount = 2
kws = (PyObject **) 0x68526c
kwcount = 0
defs = (PyObject **) 0x16d04fc
defcount = 1
closure = (PyObject *) 0x0
#19 0x0006e465 in PyEval_EvalFrameEx (f=0x685120, throwflag=0) at
Python/ceval.c:3660
co = (PyCodeObject *) 0x162b338
nd = 71026464
globals = (PyObject *) 0x1626030
argdefs = (PyObject *) 0x2bad440
d = (PyObject **) 0x2
n = 2
pfunc = (PyObject **) 0x685264
w = (PyObject *) 0xb971690
sp = (PyObject **) 0x68526c
stack_pointer = (PyObject **) 0xb602004
next_instr = (unsigned char *) 0x15f32cb "\001|\001"
opcode = 2
oparg = 1
why = WHY_NOT
err = 0
x = (PyObject *) 0x1
v = (PyObject *) 0x2
w = (PyObject *) 0x2
u = (PyObject *) 0xb971690
t = (PyObject *) 0x2
stream = (PyObject *) 0xb603c4e
fastlocals = (PyObject **) 0x685258
freevars = (PyObject **) 0x685264
retval = (PyObject *) 0x0
tstate = (PyThreadState *) 0x600170
co = (PyCodeObject *) 0x15f3260
instr_ub = -1
instr_lb = 0
instr_prev = -1
first_instr = (unsigned char *) 0x15f32bc "|"
names = (PyObject *) 0x15f2660
consts = (PyObject *) 0x15f4610
#20 0x00070b8e in PyEval_EvalCodeEx (co=0x15f3260, globals=0x15f0c00,
locals=0x0, args=0x60e638, argcount=1, kws=0x60e63c, kwcount=2,
defs=0x16051f4, defcount=2, closure=0x0) at Python/ceval.c:2831
f = (PyFrameObject *) 0x685120
retval = (PyObject *) 0x0
fastlocals = (PyObject **) 0x685258
freevars = (PyObject **) 0x685264
tstate = (PyThreadState *) 0x600170
x = (PyObject *) 0x2bad440
u = (PyObject *) 0x0
co = (PyCodeObject *) 0x15f3260
globals = (PyObject *) 0xb971690
locals = (PyObject *) 0x43bc720
args = (PyObject **) 0x16051fc
argcount = 1
kws = (PyObject **) 0x60e63c
kwcount = 2
defs = (PyObject **) 0x16051f4
defcount = 2
closure = (PyObject *) 0x0
#21 0x0006e465 in PyEval_EvalFrameEx (f=0x60e500, throwflag=0) at
Python/ceval.c:3660
co = (PyCodeObject *) 0x15f3260
nd = 71026464
globals = (PyObject *) 0x15f0c00
argdefs = (PyObject *) 0x2bad440
d = (PyObject **) 0x1
n = 5
pfunc = (PyObject **) 0x60e638
w = (PyObject *) 0xb971690
sp = (PyObject **) 0x60e64c
stack_pointer = (PyObject **) 0x60e4f0
next_instr = (unsigned char *) 0x51143a "\001d\002"
opcode = 1
oparg = 512
why = WHY_NOT
err = 0
x = (PyObject *) 0x0
v = (PyObject *) 0x1
w = (PyObject *) 0x1
u = (PyObject *) 0xb971690
t = (PyObject *) 0x1
stream = (PyObject *) 0x0
fastlocals = (PyObject **) 0x60e638
freevars = (PyObject **) 0x60e638
retval = (PyObject *) 0x0
tstate = (PyThreadState *) 0x600170
co = (PyCodeObject *) 0x54bc38
instr_ub = -1
instr_lb = 0
instr_prev = -1
first_instr = (unsigned char *) 0x5113c4 "d"
names = (PyObject *) 0x55a530
consts = (PyObject *) 0x516ee0
#22 0x00070b8e in PyEval_EvalCodeEx (co=0x54bc38, globals=0x51fd20,
locals=0x51fd20, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0,
defcount=0, closure=0x0) at Python/ceval.c:2831
f = (PyFrameObject *) 0x60e500
retval = (PyObject *) 0x0
fastlocals = (PyObject **) 0x60e638
freevars = (PyObject **) 0x60e638
tstate = (PyThreadState *) 0x600170
x = (PyObject *) 0x2bad440
u = (PyObject *) 0x0
co = (PyCodeObject *) 0x54bc38
globals = (PyObject *) 0xb971690
locals = (PyObject *) 0x43bc720
args = (PyObject **) 0x0
argcount = 0
kws = (PyObject **) 0x0
kwcount = 0
defs = (PyObject **) 0x0
defcount = 0
closure = (PyObject *) 0x0
#23 0x00070d42 in PyEval_EvalCode (co=0x54bc38, globals=0x51fd20,
locals=0x51fd20) at Python/ceval.c:494
co = (PyCodeObject *) 0x2bad440
globals = (PyObject *) 0x2bad440
locals = (PyObject *) 0x2bad440
#24 0x00093e47 in PyRun_FileExFlags (fp=0xa000bda0,
filename=0xbfffed64 "/Applications/sage/local/bin/sage-gdb-
pythonstartup", start=257, globals=0x51fd20, locals=0x51fd20,
closeit=0, flags=0xbfffe09c) at Python/pythonrun.c:1271
co = (PyCodeObject *) 0x54bc38
ret = (PyObject *) 0x18494b8
mod = (mod_ty) 0x18494b8
arena = (struct _arena *) 0x60b630
#25 0x000941e1 in PyRun_SimpleFileExFlags (fp=0xa000bda0,
filename=0xbfffed64 "/Applications/sage/local/bin/sage-gdb-
pythonstartup", closeit=0, flags=0xbfffe09c) at Python/pythonrun.c:877
m = (PyObject *) 0x2bad440
d = (PyObject *) 0x51fd20
v = (PyObject *) 0xa000bda0
ext = 0xbfffed93 "rtup"
#26 0x00005d10 in Py_Main (argc=0, argv=0xbfffe124) at Modules/main.c:
134
fp = (FILE *) 0xa000bda0
startup = 0xbfffed64 "/Applications/sage/local/bin/sage-gdb-
pythonstartup"
c = 45798464
sts = -1610564192
command = 0x0
filename = 0x0
module = 0x0
fp = (FILE *) 0xa0001be0
p = 0x2bad440 "£\003∑\002Ü\001∑\002›<∏\002í0∏\002Z~∂\002Ïˇ∂\002«T∏
\002nW∏\002\025Z∏\002º\\∏\002c_∏\002Eˇ∂\002"
inspect = 1
unbuffered = 0
skipfirstline = 0
stdin_is_interactive = 1
help = 0
version = 0
saw_inspect_flag = 1
saw_unbuffered_flag = 0
cf = {
cf_flags = 0
}
#27 0x0000235e in _start ()
No symbol table info available.
#28 0x00002285 in start ()
No symbol table info available.
(gdb) The program is running. Exit anyway? (y or n)
--~--~---------~--~----~------------~-------~--~----~
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