Hi
The error persists on a ubuntu 12.04.2 from-source install:
;;;
;;; Detected access to protected memory, also kwown as 'bus or segmentation
fault'.
;;; Jumping to the outermost toplevel prompt
;;;
./sage: line 135: 5791 Segmentation fault "$SAGE_ROOT/spkg/bin/sage"
"$@"
Now I can sage -gdb the from-source install:
sage: solve([(a*x+b*y)*x*y/c==1,3*log(a + b + c) -
log(27*a*b*x*y)],x,y,solution_dict=True)
Program received signal SIGSEGV, Segmentation fault.
ecl_bds_unwind (env=0x7ffff7fed000, new_bds_top_index=<optimised out>)
at
/srv/local/Disk_Space/jan/sage-5.7/spkg/build/ecl-12.12.1.p1/src/src/c/stacks.d:173
173
/srv/local/Disk_Space/jan/sage-5.7/spkg/build/ecl-12.12.1.p1/src/src/c/stacks.d:
No such file or directory.
(gdb)
The build directory is empty.
Some references from a quick google search of ecl + access to protected
memory:
http://www.mail-archive.com/[email protected]/msg02367.html
http://trac.sagemath.org/sage_trac/ticket/13364
Regards,
Jan
On 24 February 2013 11:12, Jan Groenewald <[email protected]> wrote:
> Hi
>
> I also get this on Ubuntu 12.04.2 sage 5.7 64bit (binary).
>
>
> ;;;
> ;;; Detected access to protected memory, also kwown as 'bus or
> segmentation fault'.
> ;;; Jumping to the outermost toplevel prompt
> ;;;
>
> Right after running solve, this message appears many times (several
> seconds long)
> until
>
> ;;;
> ;;; Detected access to protected memory, also kwown as 'bus or
> segmentation fault'.
> ;;; Jumping to the outermost toplevel prompt
> ;;;
>
> /usr/bin/sage: line 135: 6511 Segmentation fault
> "$SAGE_ROOT/spkg/bin/sage" "$@"
>
> Also note this error when running sage -gdb
>
> 0 jan@osprey:~$sage -gdb
> ----------------------------------------------------------------------
> | Sage Version 5.7, Release Date: 2013-02-19 |
> | Type "notebook()" for the browser-based notebook interface. |
> | Type "help()" for help. |
> ----------------------------------------------------------------------
> GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2.1) 7.4-2012.04
> Copyright (C) 2012 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <
> http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law. Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-linux-gnu".
> For bug reporting instructions, please see:
> <http://bugs.launchpad.net/gdb-linaro/>...
> Reading symbols from /usr/lib/sagemath/local/bin/python...(no debugging
> symbols found)...done.
> /tmp/tmpThUpcH:4: Error in sourced command file:
> /home/buildbot/build/sage/snapperkob/snapperkob_binary/build/sage-5.7/local/bin/python:
> No such file or directory.
> /usr/lib/sagemath/local/bin/sage-gdb-commands:1: Error in sourced command
> file:
> No executable file specified.
> Use the "file" or "exec-file" command.
> (gdb)
>
> This is from the PPA repackage of the binary built on buildbot, the
> buildbot's hostname is snapperkob.
>
> I will test it on a from-source compile once it has compiled.
>
> Regards,
> Jan
>
>
>
>
> On 24 February 2013 11:03, Rolandb <[email protected]> wrote:
>
>> Hi,
>>
>> Using 5.7 in Windows 64, I got the following message:
>>
>> solution=solve([(a*x+b*y)*x*y/c==1,3*log(a + b + c) -
>> log(27*a*b*x*y)],x,y,solution_dict=True)
>> for sol in solution: show(sol)
>>
>>
>>
>> ;;;
>> ;;; Detected access to protected memory, also kwown as 'bus or
>> segmentation fault'.
>> ;;; Jumping to the outermost toplevel prompt
>> ;;;
>>
>>
>> Roland
>>
>> --
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>>
>>
>>
>
>
>
> --
> .~.
> /V\ Jan Groenewald
> /( )\ www.aims.ac.za
> ^^-^^
>
--
.~.
/V\ Jan Groenewald
/( )\ www.aims.ac.za
^^-^^
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