Re: [Bug-apl] Segmentation fault with Emacs mode

Here is what I got:

]xterm off

]log 39

Log facility ')LOAD and )SAVE details ' is now ON

'libemacs' ⎕FX 'EMACS'

EMACS

EMACS[1] 0

Network listener started. Connection information: mode:tcp addr:40663

)load Devices

Loading file /home/blake/workspaces/Devices.xml

read_Workspace()

read_Value() vid=0

read_Value() vid=1

read_Value() vid=2

read_Value() vid=3

read_Value() vid=4

read_Value() vid=5

read_Value() vid=6

read_Value() vid=7

read_Value() vid=8

read_Value() vid=9

read_Value() vid=10

read_Value() vid=11

read_Value() vid=12

read_Value() vid=13

read_Value() vid=14

read_Value() vid=15

read_Value() vid=16

read_Value() vid=17

read_Value() vid=18

read_Value() vid=19

read_Value() vid=20

read_Value() vid=21

read_Value() vid=22

read_Value() vid=23

read_Value() vid=24

read_Value() vid=25

read_Value() vid=26

read_Value() vid=27

read_Value() vid=28

read_Value() vid=29

read_Value() vid=30

read_Value() vid=31

read_Value() vid=32

read_Value() vid=33

read_Value() vid=34

read_Value() vid=35

read_Value() vid=36

read_Value() vid=37

read_Value() vid=38

read_Value() vid=39

read_Value() vid=40

read_Value() vid=41

read_Value() vid=42

read_Value() vid=43

read_Value() vid=44

read_Value() vid=45

read_Value() vid=46

read_Value() vid=47

read_Value() vid=48

read_Value() vid=49

read_Value() vid=50

read_Value() vid=51

read_Value() vid=52

read_Value() vid=53

read_Value() vid=54

read_Value() vid=55

read_Value() vid=56

read_Value() vid=57

read_Value() vid=58

read_Value() vid=59

read_Value() vid=60

read_Value() vid=61

read_Value() vid=62

read_Value() vid=63

read_Value() vid=64

read_Value() vid=65

read_Value() vid=66

read_Value() vid=67

read_Value() vid=68

read_Value() vid=69

read_Value() vid=70

read_Value() vid=71

read_Value() vid=72

read_Value() vid=73

read_Value() vid=74

read_Value() vid=75

read_Value() vid=76

read_Value() vid=77

read_Value() vid=78

read_Value() vid=79

read_Value() vid=80

read_Value() vid=81

read_Value() vid=82

read_Value() vid=83

read_Value() vid=84

read_Value() vid=85

read_Value() vid=86

read_Value() vid=87

read_Value() vid=88

read_Value() vid=89

read_Value() vid=90

read_Value() vid=91

read_Value() vid=92

read_Value() vid=93

read_Value() vid=94

read_Value() vid=95

read_Value() vid=96

read_Value() vid=97

read_Value() vid=98

read_Value() vid=99

read_Value() vid=100

read_Value() vid=101

read_Value() vid=102

read_Value() vid=103

read_Value() vid=104

read_Value() vid=105

read_Value() vid=106

read_Value() vid=107

read_Value() vid=108

read_Value() vid=109

read_Value() vid=110

read_Value() vid=111

read_Value() vid=112

read_Value() vid=113

read_Value() vid=114

read_Value() vid=115

read_Value() vid=116

read_Value() vid=117

read_Value() vid=118

read_Value() vid=119

read_Value() vid=120

read_Value() vid=121

read_Value() vid=122

read_Value() vid=123

read_Value() vid=124

read_Value() vid=125

read_Value() vid=126

read_Value() vid=127

read_Value() vid=128

read_Value() vid=129

read_Value() vid=130

read_Value() vid=131

read_Value() vid=132

read_Value() vid=133

read_Value() vid=134

read_Value() vid=135

read_Value() vid=136

read_Value() vid=137

read_Value() vid=138

read_Value() vid=139

read_Value() vid=140

read_Value() vid=141

read_Value() vid=142

read_Value() vid=143

read_Value() vid=144

read_Value() vid=145

read_Value() vid=146

read_Value() vid=147

read_Value() vid=148

read_Value() vid=149

read_Value() vid=150

read_Value() vid=151

read_Value() vid=152

read_Value() vid=153

read_Value() vid=154

read_Value() vid=155

read_Value() vid=156

read_Value() vid=157

read_Ravel() vid=0

read_Ravel() vid=1

read_Ravel() vid=2

read_Ravel() vid=3

read_Ravel() vid=4

read_Ravel() vid=5

read_Ravel() vid=6

read_Ravel() vid=7

read_Ravel() vid=8

read_Ravel() vid=9

read_Ravel() vid=10

read_Ravel() vid=11

read_Ravel() vid=12

read_Ravel() vid=13

read_Ravel() vid=14

read_Ravel() vid=15

read_Ravel() vid=16

read_Ravel() vid=17

read_Ravel() vid=18

read_Ravel() vid=19

read_Ravel() vid=20

read_Ravel() vid=21

read_Ravel() vid=22

read_Ravel() vid=23

read_Ravel() vid=24

read_Ravel() vid=25

read_Ravel() vid=26

read_Ravel() vid=27

read_Ravel() vid=28

read_Ravel() vid=29

read_Ravel() vid=30

read_Ravel() vid=31

read_Ravel() vid=32

read_Ravel() vid=33

read_Ravel() vid=34

read_Ravel() vid=35

read_Ravel() vid=36

read_Ravel() vid=37

read_Ravel() vid=38

read_Ravel() vid=39

read_Ravel() vid=40

read_Ravel() vid=41

read_Ravel() vid=42

read_Ravel() vid=43

read_Ravel() vid=44

read_Ravel() vid=45

read_Ravel() vid=46

read_Ravel() vid=47

read_Ravel() vid=48

read_Ravel() vid=49

read_Ravel() vid=50

read_Ravel() vid=51

read_Ravel() vid=52

read_Ravel() vid=53

read_Ravel() vid=54

read_Ravel() vid=55

read_Ravel() vid=56

read_Ravel() vid=57

read_Ravel() vid=58

read_Ravel() vid=59

read_Ravel() vid=60

read_Ravel() vid=61

read_Ravel() vid=62

read_Ravel() vid=63

read_Ravel() vid=64

read_Ravel() vid=65

read_Ravel() vid=66

read_Ravel() vid=67

read_Ravel() vid=68

read_Ravel() vid=69

read_Ravel() vid=70

read_Ravel() vid=71

read_Ravel() vid=72

read_Ravel() vid=73

read_Ravel() vid=74

read_Ravel() vid=75

read_Ravel() vid=76

read_Ravel() vid=77

read_Ravel() vid=78

read_Ravel() vid=79

read_Ravel() vid=80

read_Ravel() vid=81

read_Ravel() vid=82

read_Ravel() vid=83

read_Ravel() vid=84

read_Ravel() vid=85

read_Ravel() vid=86

read_Ravel() vid=87

read_Ravel() vid=88

read_Ravel() vid=89

read_Ravel() vid=90

read_Ravel() vid=91

read_Ravel() vid=92

read_Ravel() vid=93

read_Ravel() vid=94

read_Ravel() vid=95

read_Ravel() vid=96

read_Ravel() vid=97

read_Ravel() vid=98

read_Ravel() vid=99

read_Ravel() vid=100

read_Ravel() vid=101

read_Ravel() vid=102

read_Ravel() vid=103

read_Ravel() vid=104

read_Ravel() vid=105

read_Ravel() vid=106

read_Ravel() vid=107

read_Ravel() vid=108

read_Ravel() vid=109

read_Ravel() vid=110

read_Ravel() vid=111

read_Ravel() vid=112

read_Ravel() vid=113

read_Ravel() vid=114

read_Ravel() vid=115

read_Ravel() vid=116

read_Ravel() vid=117

read_Ravel() vid=118

read_Ravel() vid=119

read_Ravel() vid=120

read_Ravel() vid=121

read_Ravel() vid=122

read_Ravel() vid=123

read_Ravel() vid=124

read_Ravel() vid=125

read_Ravel() vid=126

read_Ravel() vid=127

read_Ravel() vid=128

read_Ravel() vid=129

read_Ravel() vid=130

read_Ravel() vid=131

read_Ravel() vid=132

read_Ravel() vid=133

read_Ravel() vid=134

read_Ravel() vid=135

read_Ravel() vid=136

read_Ravel() vid=137

read_Ravel() vid=138

read_Ravel() vid=139

read_Ravel() vid=140

read_Ravel() vid=141

read_Ravel() vid=142

read_Ravel() vid=143

read_Ravel() vid=144

read_Ravel() vid=145

read_Ravel() vid=146

read_Ravel() vid=147

read_Ravel() vid=148

read_Ravel() vid=149

read_Ravel() vid=150

read_Ravel() vid=151

read_Ravel() vid=152

read_Ravel() vid=153

read_Ravel() vid=154

read_Ravel() vid=155

read_Ravel() vid=156

read_Ravel() vid=157

read_SymbolTable() vid=

read_Symbol() name=CAL

read_Function() native=-1

read_Symbol() name=CS

read_Function() native=-1

read_Symbol() name=Cms

read_Symbol() name=Delim

read_Symbol() name=Dn

read_Symbol() name=EHN

read_Function() native=-1

read_Symbol() name=EN0

read_Symbol() name=EN1

read_Symbol() name=EN2

read_Symbol() name=EN3

read_Symbol() name=ER

read_Function() native=-1

read_Symbol() name=ER1

read_Symbol() name=Fm

read_Symbol() name=Fv

read_Symbol() name=JUL

read_Function() native=-1

read_Symbol() name=LP

read_Symbol() name=Lck

read_Function() native=-1

read_Symbol() name=Lib

read_Symbol() name=Lu

read_Symbol() name=Omega

read_Function() native=-1

read_Symbol() name=PI

read_Function() native=-1

read_Symbol() name=Pad

read_Symbol() name=Parse

read_Function() native=-1

read_Symbol() name=Pin

read_Function() native=-1

read_Symbol() name=Pn

read_Symbol() name=Pt

read_Symbol() name=Sset

read_Symbol() name=VI

read_Function() native=-1

read_Symbol() name=a

read_Symbol() name=auto

read_Function() native=-1

read_Symbol() name=c

read_Symbol() name=d

read_Symbol() name=l

read_Symbol() name=m

read_Symbol() name=n

read_Symbol() name=p

read_Symbol() name=q

read_Symbol() name=r

read_Symbol() name=start

read_Symbol() name=t

read_Symbol() name=v

read_Symbol() name=y

read_Symbol() name=z

read_Symbol() name=λ

read_Symbol() name=χ

read_Symbol() name=∆

read_Function() native=-1

read_Symbol() name=⍵

read_Symbol() name=⍶

read_Symbol() name=⍹

read_Symbol() name=⍺

read_Symbol() name=⎕AI

read_Variable() vid=156 name=⎕AI

read_Symbol() name=⎕ARG

read_Symbol() name=⎕AV

read_Variable() vid=155 name=⎕AV

read_Symbol() name=⎕EM

read_Symbol() name=⎕ET

read_Symbol() name=⎕LC

read_Variable() vid=154 name=⎕LC

read_Symbol() name=⎕PT

read_Variable() vid=153 name=⎕PT

read_Symbol() name=⎕SVE

read_Variable() vid=152 name=⎕SVE

read_Symbol() name=⎕TC

read_Variable() vid=151 name=⎕TC

read_Symbol() name=⎕TS

read_Variable() vid=150 name=⎕TS

read_Symbol() name=⎕UL

read_Variable() vid=149 name=⎕UL

read_Symbol() name=⎕WA

read_Variable() vid=148 name=⎕WA

read_Symbol() name=⎕CT

read_Variable() vid=77 name=⎕CT

read_Symbol() name=⎕FC

read_Variable() vid=147 name=⎕FC

read_Symbol() name=⎕IO

read_Variable() vid=76 name=⎕IO

read_Symbol() name=⎕L

read_Variable() vid=146 name=⎕L

read_Symbol() name=⎕LX

read_Variable() vid=25 name=⎕LX

read_Symbol() name=⎕NLT

read_Variable() vid=145 name=⎕NLT

read_Symbol() name=⎕PP

read_Variable() vid=75 name=⎕PP

read_Symbol() name=⎕PR

read_Variable() vid=74 name=⎕PR

read_Symbol() name=⎕PS

read_Variable() vid=73 name=⎕PS

read_Symbol() name=⎕PW

read_Variable() vid=24 name=⎕PW

read_Symbol() name=⎕R

read_Variable() vid=144 name=⎕R

read_Symbol() name=⎕RL

read_Variable() vid=72 name=⎕RL

read_Symbol() name=⎕SYL

read_Variable() vid=143 name=⎕SYL

read_Symbol() name=⎕TZ

read_Variable() vid=71 name=⎕TZ

read_Symbol() name=⍺

read_Symbol() name=⍶

read_Symbol() name=χ

read_Symbol() name=λ

read_Symbol() name=⍵

read_Symbol() name=⍹

read_StateIndicator()

SAVED 2014-4-27 16:11:45 (GMT-5)

VALUE ERROR

auto[11] start

====================================================

SEGMENTATION FAULT

Segmentation fault

address@hidden ~ $

On Wed, Apr 30, 2014 at 8:01 AM, Elias Mårtenson <address@hidden> wrote:

You don't need Emacs to reproduce. All it takes is to have the backend active. You can start it my loading the library:

'libemacs' ⎕FX 'EMACS'

and then start the server:

EMACS[1] 0

That's all it takes. After that it should be easy to reproduce the problem.

Regards,
Elias

On 30 April 2014 20:56, Juergen Sauermann <address@hidden> wrote:

Hi,

problem on my machine is that I don't have emacs installed.
And without it is difficult to reproduce. Maybe Elias can help
to narrow this down a little.

If you are not getting a "vid=" printout then the fault is probably not where I thought it would be.

The thing is that based on the information so far I can't really see what happened.
To get more info, for example if this is happening during or after loading of the workspace
file you could try the following:

1. 'make develop clean all' on top level (or ./configure DYNAMIC_LOG_WANTED=yes

2. after that you can enable different logging facilities on APL level (in the case of workspace
loading that would be 39); ]log without an argument shows the numbers:

      ]log 39
      )LOAD Devices

This way we can figure step by step where the problem is. May take a while.

/// Jürgen

On 04/30/2014 02:31 PM, Blake McBride wrote:

Isn't this just such an example?

On Wed, Apr 30, 2014 at 7:17 AM, Elias Mårtenson <address@hidden> wrote:

The Emacs mode should not be hiding the output on standard error. If anyone happens to see it do that, please let me know because that would mean you've come across a bug.

Regards,
Elias

On 30 Apr 2014 20:04, "Juergen Sauermann" <address@hidden> wrote:

Hi Blake,

if the problem is that stderr gets lost, then it might help if you change
Archive.cc line 1348:

        CERR << "vid=" << vid << endl;
        FIXME;

from CERR to COUT. That should at least show the vid that tells me where in the
.apl file this happens. Just a guess because i am not that familiar with emacs mode.

/// Jürgen

On 04/29/2014 10:19 PM, Blake McBride wrote:

I don't know how to get the vid printed on stderr since I only get the error running through Emacs. If someone can give me a way of simulating this error without emacs, I'd be glad to do that.

Thanks.

Blake

On Tue, Apr 29, 2014 at 8:45 AM, Juergen Sauermann <address@hidden> wrote:

Hi,

I managed to reproduce this once with )LOAD Devices (and without emacs), but after turning Archive related
logging on and off again I did not happen again. I have added some more printout so that I
can see which value ID is causing this (SVN 237). If it happens again, please send me the
.xml (if it is a different one) and the vid printed on stderr.

/// Jürgen

On 04/28/2014 05:11 PM, Blake McBride wrote:

Here is the workspace.

On Mon, Apr 28, 2014 at 10:06 AM, Juergen Sauermann <address@hidden> wrote:

Hi,

I have initialized current_char in SVN 234, but can't see either how this would
make a difference. I would be interested in the workspace file as well if the error persists.

/// Jürgen

From:	Blake McBride
Subject:	Re: [Bug-apl] Segmentation fault with Emacs mode
Date:	Wed, 30 Apr 2014 08:26:41 -0500