Segfault on eql

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 454-5900

Hi,

It happens clisp (compiled on archlinux from the latest source - no multi-threading)  to crash. It does not happened all the time and is not perfectly reproducible.
When run under gdb, backtrace is:

#1  0x0000000000598baa in equal (obj1=..., obj2=...) at ../src/predtype.d:122
#2  0x000000000046a6d4 in sym_function (sym=..., env=...) at ../src/eval.d:1023
#3  0x000000000046b6f1 in macroexp (form=..., venv=..., fenv=...) at ../src/eval.d:1418
#4  0x0000000000473a73 in eval1 (form=...) at ../src/eval.d:3054
#5  0x000000000047362b in eval (form=...) at ../src/eval.d:2966
#6  0x00000000004939b3 in C_cond () at ../src/control.d:1251
#7  0x00000000004746f0 in eval_fsubr (fun=..., args=...) at ../src/eval.d:3263
#8  0x0000000000473cb3 in eval1 (form=...) at ../src/eval.d:3101
#9  0x000000000047362b in eval (form=...) at ../src/eval.d:2966
#10 0x0000000000490df3 in C_let () at ../src/control.d:692
#11 0x00000000004746f0 in eval_fsubr (fun=..., args=...) at ../src/eval.d:3263
#12 0x0000000000473cb3 in eval1 (form=...) at ../src/eval.d:3101
#13 0x000000000047362b in eval (form=...) at ../src/eval.d:2966
#14 0x0000000000472737 in funcall_iclosure (closure=..., args_pointer=0x7ffff6ab26c0, argcount=0) at ../src/eval.d:2744
#15 0x0000000000478e8c in eval_closure (closure=...) at ../src/eval.d:3935
#16 0x0000000000473c38 in eval1 (form=...) at ../src/eval.d:3091
#17 0x000000000047362b in eval (form=...) at ../src/eval.d:2966
#18 0x00000000004939b3 in C_cond () at ../src/control.d:1251
#19 0x00000000004746f0 in eval_fsubr (fun=..., args=...) at ../src/eval.d:3263

(gdb) print obj1
Cannot access memory at address 0x7fffff7fefe0
(gdb) print obj2
Cannot access memory at address 0x7fffff7fefd0
but

(gdb) up
#1  0x0000000000598baa in equal (obj1=..., obj2=...) at ../src/predtype.d:122
(gdb) print obj1
$7 = {one_o = 1125913662696264}
(gdb) print obj2
$8 = {one_o = 1125899916347576}

Would you suggest how to investigate further?
Is there a way to decipher these obj1 and obj2?

Regards, AngelP