[#345382] Nice algorithm for 'spreading' indexes across an array? — Max Williams <toastkid.williams@...>

Little ruby algorithm puzzle...

13 messages 2009/09/01

[#345407] how to convert string to binary and back in Ruby 1.9? — Joe <ziggurism@...>

I'm using Ruby 1.9.1-p243 on Mac OS X 10.5.8.

10 messages 2009/09/01

[#345437] clogger 0.0.4 - configurable request logging for Rack — Eric Wong <normalperson@...>

* http://clogger.rubyforge.org/

10 messages 2009/09/02
[#345439] Re: [ANN] clogger 0.0.4 - configurable request logging for Rack — Iñaki Baz Castillo <ibc@...> 2009/09/02

2009/9/2 Eric Wong <normalperson@yhbt.net>:

[#345446] rdoc — Oleg Puchinin <ruby_talk@...>

Hello !

17 messages 2009/09/02
[#346260] Ruby 1.9 rdoc never ends (Re: rdoc) — James Britt <james.britt@...> 2009/09/12

Oleg Puchinin wrote:

[#346267] Re: Ruby 1.9 rdoc never ends (Re: rdoc) — Ryan Davis <ryand-ruby@...> 2009/09/12

[#346276] Re: Ruby 1.9 rdoc never ends (Re: rdoc) — Roger Pack <rogerpack2005@...> 2009/09/12

Ryan Davis wrote:

[#345493] What licensing info is needed in code headers? — "Shot (Piotr Szotkowski)" <shot@...>

Disclaimer: I know that some of you live in jurisdictions that do not

10 messages 2009/09/02

[#345535] Simple New Ruby Programmer Problem with $stdin.gets — Mason Kelsey <masonkelsey@...>

I'm having difficulty getting any command to work to pick up input from a

14 messages 2009/09/02

[#345573] Type checking function parameters — Nick Green <cruzmail.ngreen@...>

More or less all my functions look something like

22 messages 2009/09/03
[#345593] Re: Type checking function parameters — Eleanor McHugh <eleanor@...> 2009/09/03

On 3 Sep 2009, at 05:04, Nick Green wrote:

[#345606] Re: Type checking function parameters — Paul Smith <paul@...> 2009/09/03

My first stab at some Ruby started like this too.

[#345667] Re: Type checking function parameters — Nick Green <cruzmail.ngreen@...> 2009/09/03

OK...

[#345676] Re: Type checking function parameters — Eleanor McHugh <eleanor@...> 2009/09/04

On 3 Sep 2009, at 23:47, Nick Green wrote:

[#345687] Re: Type checking function parameters — James Edward Gray II <james@...> 2009/09/04

On Sep 3, 2009, at 7:30 PM, Eleanor McHugh wrote:

[#345745] Re: Type checking function parameters — Eleanor McHugh <eleanor@...> 2009/09/04

On 4 Sep 2009, at 03:56, James Edward Gray II wrote:

[#345828] Re: Type checking function parameters — spiralofhope <spiralofhope@...> 2009/09/06

Along the lines of this thread..

[#345835] Re: Type checking function parameters — "David A. Black" <dblack@...> 2009/09/06

Hi --

[#345773] Rubyscript instead of javascript — Damjan Rems <d_rems@...>

30 messages 2009/09/05
[#345970] Re: Rubyscript instead of javascript — Jg W Mittag <JoergWMittag+Usenet@...> 2009/09/08

David Masover wrote:

[#345774] how to compare two object instances? is "m1.to_yaml.eql?(m2.to_yaml)" a good way? — Greg Hauptmann <greg.hauptmann.ruby@...>

Hi,

8 messages 2009/09/05

[#345848] i need to strip \n and nil — Bigmac Turdsplash <i8igmac@...>

im sending files back and forth form a client and a server using

16 messages 2009/09/06

[#345883] Executing system commands in threads under Ruby 1.8.6 — vhaerun vh <etaern@...>

I tried to write a script that makes use of external binaries. Each

17 messages 2009/09/07
[#345889] Re: Executing system commands in threads under Ruby 1.8.6 — Robert Klemme <shortcutter@...> 2009/09/07

2009/9/7 vhaerun vh <etaern@yahoo.com>:

[#345893] Re: Executing system commands in threads under Ruby 1.8.6 — vhaerun vh <etaern@...> 2009/09/07

Here's a link to the question I asked on SO:

[#345901] Re: Executing system commands in threads under Ruby 1.8.6 — Eleanor McHugh <eleanor@...> 2009/09/07

On 7 Sep 2009, at 09:55, vhaerun vh wrote:

[#345904] Re: Executing system commands in threads under Ruby 1.8.6 — Bertram Scharpf <lists@...> 2009/09/07

Hi,

[#345886] Ruby 1.9, Rubygems, and .gemspec warnings — Rob Sanheim <rsanheim@...>

Hi all

14 messages 2009/09/07

[#346018] Tutorial challenge program help — Chris Logan <t-logan3@...>

Hello all im really new to ruby as in a few days and getting into it. i

20 messages 2009/09/09
[#346023] Re: Tutorial challenge program help — 7stud -- <bbxx789_05ss@...> 2009/09/09

Chris Logan wrote:

[#346027] Re: Tutorial challenge program help — Chris Logan <t-logan3@...> 2009/09/09

7stud -- wrote:

[#346091] How Are Variables Kept Independent of Each Other Yet Pass Values? — Mason Kelsey <masonkelsey@...>

Somewhere in the several books I've been learning Ruby from there was the

14 messages 2009/09/10
[#346096] Re: How Are Variables Kept Independent of Each Other Yet Pass Values? — venkatesh Peddi <venkat.peddi@...> 2009/09/10

[#346099] Re: How Are Variables Kept Independent of Each Other Yet Pass Values? — Yossef Mendelssohn <ymendel@...> 2009/09/10

On Sep 9, 10:50=A0pm, venkatesh Peddi <venkat.pe...@hotmail.com> wrote:

[#346106] Asynchronous http POST? — Ivan Shevanski <ocelot117@...>

Hey everyone, I'm new to Ruby and to the mailing list, so go easy.

14 messages 2009/09/10
[#346166] Re: Asynchronous http POST? — Ezra Zygmuntowicz <ezmobius@...> 2009/09/10

[#346193] populating a hash from an array using inject — Glenn Jackman <glennj@...>

I was looking at this problem on Stack Overflow (this one:

12 messages 2009/09/10

[#346324] module to overwrite method defined via define_method — Gaspard Bucher <gaspard@...>

Hi List !

17 messages 2009/09/13
[#346326] Re: module to overwrite method defined via define_method — "David A. Black" <dblack@...> 2009/09/13

Hi --

[#346328] Re: module to overwrite method defined via define_method — Gaspard Bucher <gaspard@...> 2009/09/13

David A. Black wrote:

[#346347] FasterCSV.foreach loop — Dot Baiki <dot_baiki@...>

Hello community,

16 messages 2009/09/13

[#346367] .map.with_object(3){|v|v+3} #=> 3 Is this a bug? — ErMaker <ermaker@...>

At ruby 1.9.2dev (2009-07-18 trunk 24186) [i386-mswin32_90]

15 messages 2009/09/14

[#346383] Pre-allocate large amount of memory? — Carsten Gehling <carsten@...>

I've created a small daemon, that serves certain data very fast to our

15 messages 2009/09/14
[#346404] Re: Pre-allocate large amount of memory? — Robert Klemme <shortcutter@...> 2009/09/14

2009/9/14 Carsten Gehling <carsten@sarum.dk>:

[#346419] whats the best way to package deploy a Ruby app to windows??? (no UI, also standalone if possible) — Greg Hauptmann <greg.hauptmann.ruby@...>

Hi,

8 messages 2009/09/14

[#346452] Command line — Rong <ron.green@...>

Please forgive this stupid newb question but I thought it was possible

13 messages 2009/09/15

[#346500] Array of Hashes in an array of hashes - Complicated! — Matt Brooks <mattbrooks@...>

I have an unique problem that I can't solve. I am sorry this is long,

17 messages 2009/09/15
[#346505] Re: Array of Hashes in an array of hashes - Complicated! — John W Higgins <wishdev@...> 2009/09/15

Morning Matt,

[#346508] Re: Array of Hashes in an array of hashes - Complicated! — Matt Brooks <mattbrooks@...> 2009/09/15

Hi John,

[#346510] Re: Array of Hashes in an array of hashes - Complicated! — John W Higgins <wishdev@...> 2009/09/15

Matt,

[#346515] Re: Array of Hashes in an array of hashes - Complicated! — Aldric Giacomoni <aldric@...> 2009/09/15

+1 on object creation

[#346574] string to array — Re BR <rereis@...>

Hello all,

15 messages 2009/09/16

[#346611] block issues... — Dylan Lukes <revenantphoenix@...>

In the following block, each plugin in the constant hash PLUGINS is

17 messages 2009/09/16

[#346621] Monkey Patching 2 Methods, Overrides One Method, Not The Other — MaggotChild <hsomob1999@...>

I'm monkey patching 2 methods of an existing module: some_method() and

18 messages 2009/09/17

[#346645] Mucking about with dynamically adding methods to objects — Paul Smith <paul@...>

I've been toying with Ruby for a while, but only now am I beginning to

12 messages 2009/09/17
[#346652] Re: Mucking about with dynamically adding methods to objects — Jes俍 Gabriel y Gal疣 <jgabrielygalan@...> 2009/09/17

On Thu, Sep 17, 2009 at 11:44 AM, Paul Smith <paul@pollyandpaul.co.uk> wrot=

[#346665] Re: Mucking about with dynamically adding methods to objects — Paul Smith <paul@...> 2009/09/17

2009/9/17 Jes=FAs Gabriel y Gal=E1n <jgabrielygalan@gmail.com>:

[#346676] Value isn't appended in puts statement(appears on next line) — Mrmaster Mrmaster <mrsolarlife@...>

Hello,

13 messages 2009/09/17
[#346678] Re: Value isn't appended in puts statement(appears on next line) — Jes俍 Gabriel y Gal疣 <jgabrielygalan@...> 2009/09/17

On Thu, Sep 17, 2009 at 8:51 PM, Mrmaster Mrmaster

[#346759] Newbie: Are Ruby regexp's a subset, superset, or equal to Perl's? — Harry <simonsharry@...>

Hi,

13 messages 2009/09/18

[#346774] Exceptional Rails Developer — Richard Price <richard.price100@...>

Hi all,

32 messages 2009/09/18
[#347451] Re: Exceptional Rails Developer — Ilan Berci <ilan.berci@...> 2009/09/30

Richard Price wrote:

[#347452] Re: Exceptional Rails Developer — Zundra Daniel <zundra.daniel@...> 2009/09/30

At least he didn't say "Rockstar" or "Ninja"

[#347476] Re: Exceptional Rails Developer — David Masover <ninja@...> 2009/09/30

On Wednesday 30 September 2009 01:45:27 pm Zundra Daniel wrote:

[#347477] Re: Exceptional Rails Developer — Greg Donald <gdonald@...> 2009/09/30

On Wed, Sep 30, 2009 at 6:44 PM, David Masover <ninja@slaphack.com> wrote:

[#347482] Re: Exceptional Rails Developer — David Masover <ninja@...> 2009/10/01

On Wednesday 30 September 2009 06:54:16 pm Greg Donald wrote:

[#347514] Re: Exceptional Rails Developer — Eleanor McHugh <eleanor@...> 2009/10/01

On 1 Oct 2009, at 01:32, David Masover wrote:

[#347551] Re: Exceptional Rails Developer — David Masover <ninja@...> 2009/10/01

On Thursday 01 October 2009 08:20:26 am Eleanor McHugh wrote:

[#347592] Re: Exceptional Rails Developer — Eleanor McHugh <eleanor@...> 2009/10/02

On 1 Oct 2009, at 19:15, David Masover wrote:

[#347596] Re: Exceptional Rails Developer — Aldric Giacomoni <aldric@...> 2009/10/02

[#346775] Determining if a file is binary or text — James Masters <james.d.masters@...>

Hi all,

15 messages 2009/09/18

[#346891] Incrementing variable names in a loop? — Matt Brooks <mattbrooks@...>

I have a function write_log that takes in a string and it prints to

10 messages 2009/09/21

[#347044] the great ruby editor and ide roundup — Martin DeMello <martindemello@...>

https://spreadsheets.google.com/ccc?key=0Al_hzYODcgxwdG9tUFhqcVVoUDVaLTlqT2YtNjV1N0E&hl=en

26 messages 2009/09/23
[#347045] Re: the great ruby editor and ide roundup — Rajinder Yadav <devguy.ca@...> 2009/09/23

On Wed, Sep 23, 2009 at 4:02 PM, Martin DeMello <martindemello@gmail.com> wrote:

[#347058] How do you limit the line length of the output commands? Where is pqueue library documented? — Mason Kelsey <masonkelsey@...>

There must be an easy way to solve the problem of controlling the length of

12 messages 2009/09/23

[#347156] Roulette & rand — Semih Ozkoseoglu <ozansemih@...>

Hi,

22 messages 2009/09/25
[#347161] Re: Roulette & rand — Stefano Crocco <stefano.crocco@...> 2009/09/25

On Friday 25 September 2009, Semih Ozkoseoglu wrote:

[#347164] Re: Roulette & rand — Semih Ozkoseoglu <ozansemih@...> 2009/09/25

Hi again Stefano,

[#347171] Re: Roulette & rand — Stefano Crocco <stefano.crocco@...> 2009/09/25

On Friday 25 September 2009, Semih Ozkoseoglu wrote:

[#347173] Re: Roulette & rand — Semih Ozkoseoglu <ozansemih@...> 2009/09/25

Stefano, Paul,

[#347179] Re: Roulette & rand — Semih Ozkoseoglu <ozansemih@...> 2009/09/25

Hi again,

[#347193] How to remove duplicate elements in a 2D array — Li Chen <chen_li3@...>

Hi all,

20 messages 2009/09/25

[#347202] Backporting Enumerator.new { ... } to Ruby 1.8.7 — "Shot (Piotr Szotkowski)" <shot@...>

Hello, good people of ruby-talk.

12 messages 2009/09/25

[#347260] handling of regexp objects that aren't referenced by variables, arrays, tables or objects — ThomasW <x.zupftom@...>

Hi,

12 messages 2009/09/27

[#347354] How do I use nitpick — "Michael W. Ryder" <_mwryder@...>

I was looking for a program like lint in C and came across nitpick. I

23 messages 2009/09/29
[#347366] Re: How do I use nitpick — Hassan Schroeder <hassan.schroeder@...> 2009/09/29

On Mon, Sep 28, 2009 at 9:25 PM, Michael W. Ryder

[#347397] Re: How do I use nitpick — "Michael W. Ryder" <_mwryder@...> 2009/09/29

Hassan Schroeder wrote:

[#347398] Re: How do I use nitpick — Ryan Davis <ryand-ruby@...> 2009/09/29

[#347364] Group by unique entries of a hash — Ne Scripter <stuart.clarke@...>

I have two data sets loaded into a hash to give the following output

15 messages 2009/09/29

[#347443] Get current working copy version in subversion/git — Anthony Metcalf <anthony.metcalf@...>

Hi,

11 messages 2009/09/30

[#347456] SystemStackError: stack level too deep > how make it deeper? — Joshua Muheim <forum@...>

Hi all

15 messages 2009/09/30
[#347459] Re: SystemStackError: stack level too deep > how make it deeper? — Jason Roelofs <jameskilton@...> 2009/09/30

On Wed, Sep 30, 2009 at 3:47 PM, Joshua Muheim <forum@josh.ch> wrote:

Odd random segfaults in 1.9.2dev with gem method

From: Nikolai Lugovoi <nlugovoi@...>
Date: 2009-09-03 22:19:00 UTC
List: ruby-talk #345663
Got some segfault errors when trying to run rake test for rails.

Minimal code example to reproduce is: ruby -e 'gem "rake"'

the odd thing is that these segfaults are not 100% reproducible,
sometimes it works as expected:

-----8<----------
$ ruby -e 'gem "rake"'
<internal:gem_prelude>:187:in `push_gem_version_on_load_path': Could
not find RubyGem rake (>=3D 0) (Gem::LoadError)
=A0=A0=A0=A0=A0=A0=A0 from /home/nlugovoi/lib/ruby/1.9.1/rubygems/defaults.=
rb:0:in
`rescue in default_exec_format'
=A0=A0=A0=A0=A0=A0=A0 from -e:1:in `<main>'
-----8<----------

But sometimes it just fails:

-----8<----------
$ ruby -e 'gem "rake"'
/home/nlugovoi/lib/ruby/1.9.1/rubygems.rb:1093: [BUG] Segmentation fault
ruby 1.9.2dev (2009-09-04 trunk 24743) [i686-linux]

-- control frame ----------
c:0012 p:---- s:0043 b:0043 l:000042 d:000042 CFUNC=A0 :require
c:0011 p:0209 s:0039 b:0039 l:000038 d:000038 TOP
/home/nlugovoi/lib/ruby/1.9.1/rubygems.rb:1093
c:0010 p:---- s:0036 b:0036 l:000035 d:000035 FINISH
c:0009 p:---- s:0034 b:0034 l:000033 d:000033 CFUNC=A0 :require
c:0008 p:0092 s:0030 b:0030 l:000029 d:000029 METHOD <internal:gem_prelude>=
:159
c:0007 p:0017 s:0027 b:0027 l:000026 d:000026 METHOD <internal:gem_prelude>=
:279
c:0006 p:---- s:0023 b:0023 l:000022 d:000022 FINISH
c:0005 p:0043 s:0021 b:0020 l:000019 d:000019 METHOD <internal:gem_prelude>=
:187
Segmentation fault
-----8<----------

From gdb I get:

-----8<----------
#0=A0 0x0813a387 in vm_backtrace_push (arg=3D0xbfffa0ec, file=3D0,
line_no=3D0, name=3D0) at vm.c:755
#1=A0 0x0813a2db in vm_backtrace_each (th=3D0x81faa98, lev=3D-2,
iter=3D0x813a363 <vm_backtrace_push>, arg=3D0xbfffa0ec) at vm.c:733
#2=A0 0x0813a44c in vm_backtrace (th=3D0x81faa98, lev=3D-1) at vm.c:768
#3=A0 0x08138ac7 in rb_make_backtrace () at vm_eval.c:1426
#4=A0 0x0805b8ac in rb_longjmp (tag=3D6, mesg=3D140818900) at eval.c:363
#5=A0 0x0805bb5e in rb_exc_raise (mesg=3D140818900) at eval.c:419
#6=A0 0x0816d319 in rb_raise (exc=3D136482940, fmt=3D0x81a3676 "no such fil=
e
to load -- %s") at error.c:1132
#7=A0 0x0816f580 in load_failed (fname=3D140824860) at load.c:532

754=A0=A0=A0=A0=A0=A0=A0=A0 bt =3D rb_enc_sprintf(rb_enc_compatible(file, n=
ame), "%s:%d:in `%s'",
755=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0 RSTRING_PTR(file), line_no, RSTRING_PTR(name));
(gdb) up
#1=A0 0x0813a2db in vm_backtrace_each (th=3D0x81faa98, lev=3D-2,
iter=3D0x813a363 <vm_backtrace_push>, arg=3D0xbfffa0ec) at vm.c:733
733=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if ((*iter)=
(arg, file, line_no, iseq->name)) break;
(gdb) l
728=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if (cfp->pc !=3D 0) {
729=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 rb_iseq_t *=
iseq =3D cfp->iseq;
730
731=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 line_no =3D=
 rb_vm_get_sourceline(cfp);
732=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 file =3D is=
eq->filename;
733=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 if ((*iter)=
(arg, file, line_no, iseq->name)) break;
734=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 }
-----8<----------

My theory is that when method Kernel#gem, originally defined in
gem_prelude,=A0 is redefined/discarded in rubygems.rb, then original
iseq for method becomes orphaned and is freed by garbage collector.
But it is still referenced from control frame, so segfault.

I tried  quick&dirty patch to explicitly mark iseq objects, not sure
if it is correct way:
-----8<----------
--- a/vm.c
+++ b/vm.c
@@ -1415,7 +1415,21 @@ static int
 vm_mark_each_thread_func(st_data_t key, st_data_t value, st_data_t dummy)
 {
     VALUE thval =3D (VALUE)key;
+    rb_thread_t *th;
+    rb_control_frame_t *cfp;
+
+    GetThreadPtr(thval, th);
+
+    cfp =3D th->cfp;
+    while (!RUBY_VM_CONTROL_FRAME_STACK_OVERFLOW_P(th, cfp)) {
+       if (RUBY_VM_NORMAL_ISEQ_P(cfp->iseq)) {
+               rb_gc_mark(cfp->iseq->self);
+       }
+       cfp =3D RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp);
+    }
+
     rb_gc_mark(thval);
+
     return ST_CONTINUE;
 }
-----8<----------
and that seemed to eliminate such segfaults

Any other explanations or fixes?

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