I cannot reproduce this anymore on a9dc553893dcd26f047afecc8dc84d30c9bdcde6.
So closing.
On 20 Jun 2016, at 18:19, Andy Wingo <wi...@pobox.com> wrote:
> On Fri 18 Mar 2016 16:35, Daniel Llorens <daniel.llor...@bluewin.ch> writes:
>
>> The error seems to happen in the error reporting, not actually because of
>> the shift.
>>
>> The following backtrace is with Guile compiled with -O1 -g, the same error
>> happens with -O2.
>>
>> GNU Guile 2.1.1.125-ae0380-dirty
>> Copyright (C) 1995-2014 Free Software Foundation, Inc.
>>
>> Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
>> This program is free software, and you are welcome to redistribute it
>> under certain conditions; type `,show c' for details.
>>
>> Enter `,help' for help.
>> scheme@(guile-user)> (import (ice-9 control))
>> scheme@(guile-user)> (shift k 9)
>>
>> Thread 1 "guile" received signal SIGSEGV, Segmentation fault.
>> 0x00007ffff7b3e02a in scm_is_pair (x=0x61900000300) at
>> ../../src4/libguile/pairs.h:159
>> 159 return SCM_I_CONSP (x);
>> (gdb) backtrace
>> #0 0x00007ffff7b3e02a in scm_is_pair (x=0x61900000300) at
>> ../../src4/libguile/pairs.h:159
>> #1 scm_iprlist (hdr=<optimized out>, hdr@entry=0x7ffff7b9799d "(",
>> exp=exp@entry=0x7ffff7fb0748, tlr=tlr@entry=41, port=port@entry=0x98b3c0,
>> pstate=pstate@entry=0x7e9b00) at ../../src4/libguile/print.c:1427
>
> Still happens on 2.1.3.
