Re: [Texmacs-dev] Problem with Ghostscript

[Michèle Garoche]

Hi Joris,

Sorry to have confused you with the name of the files.

I've just copied one file and heavily tortured it with ImageMagick, 
then saved it as ps file without changing the name.

In the first case, I'm working with the files as delivered by the 
release (I mean the files I loaded from the texmacs ftp site. 
Specifically I'm working with the web site tutorial and with the help 
files as they are. gs hangs. So I have to ctrl-C.

In the second case, I just open a new texmacs document and insert an 
image, which I have created on my disk (I mean a copy of a file 
delivered in the release, changed with ImageMagick but then resaved 
with a new name. gs does not hang. No ctrl-C.

I suspect that there is a problem with the way files are saved, though 
I cannot see differences in ImageMagick, which makes texmacs hang in 
the first case and not in the second case.

I've just made another test. Just open tm_gnu1.ps, with ImageMagick, 
resave it under a new name and given it the same owner and permissions 
and location as the original file. The new file loads.

And another one, if I only copy the tm_gnu1.ps under a new name, the 
file does not load, gs hangs.

Le vendredi, 2 mai 2003, à 22:01 Europe/Paris, Joris van der Hoeven a 
écrit :

> Hi Michele,
>
> Thanks for your detailed feedback.
> I am a bit confused by two of your experiments.
> In the first case with tm_gnu1.ps and tm_gnu2.ps,
> you obtain the following:
>
> > I obtain:
> >
> >    501  4285  4284   0  31  0     6176   1020 -      S    std    
> > 0:00.26
> > -tcsh (tcsh)
> >    501  4376  4375   0  31  0     6176   1016 -      Ss    p2    
> > 0:00.23
> > -tcsh (tcsh)
> >    501  4398  4376   0  14  0    20168   8980 -      R+    p2    
> > 0:05.65
> > texmacs.bin
> >
> > texmacs is runnable again. Normal it's loading the fonts and so on.
> >
> > 6 - A few second later, I obtain:
> >
> >    UID   PID  PPID CPU PRI NI      VSZ    RSS WCHAN  STAT  TT       
> > TIME
> > COMMAND
> >    501  4285  4284   0  31  0     6176   1020 -      S    std    
> > 0:00.26
> > -tcsh (tcsh)
> >    501  4376  4375   0  31  0     6176   1016 -      Ss    p2    
> > 0:00.23
> > -tcsh (tcsh)
> >    501  4398  4376   0  26  0    20816   9328 -      S+    p2    
> > 0:05.90
> > texmacs.bin
> >    501  4656  4398   0  27  0    14532   3460 -      S+    p2    
> > 0:00.22
> >   (gs)
> >
> > gs have been launched by texmacs, both are sleeping and in the
> > foreground process group,. gs is trying to process tm_gnu1.ps. Here I
> > suspect that texmacs does not handle gs with signal and timer, in 
> > order
> > to kill gs as apparently it hangs. So I cannot say it's normal, but it
> > reflects the situation: texmacs is waiting for gs to terminate and gs
> > cannot send its terminating signal to texmacs, due possibly to a 
> > signal
> > that is not caught by texmacs (just my guess, I have not browsed the
> > code).
> >
> > 7 - I send a ctrl-C in xterm.
> >
> > I obtain:
> >
> >    UID   PID  PPID CPU PRI NI      VSZ    RSS WCHAN  STAT  TT       
> > TIME
> > COMMAND
> >    501  4285  4284   0  31  0     6176   1020 -      S    std    
> > 0:00.26
> > -tcsh (tcsh)
> >    501  4376  4375   0  31  0     6176   1016 -      Ss    p2    
> > 0:00.23
> > -tcsh (tcsh)
> >    501  4398  4376   0  31  0    20816   9336 -      S+    p2    
> > 0:06.04
> > texmacs.bin
> >    501  4661  4398   0  31  0    14532   3460 -      S+    p2    
> > 0:00.23
> >   (gs)
> >
> > Idem as above with tm_gnu2.ps
> >
> > 8 - I send another ctrl-C in xterm
> >
> > I obtain:
> >
> >   UID   PID  PPID CPU PRI NI      VSZ    RSS WCHAN  STAT  TT       
> > TIME
> > COMMAND
> >    501  4285  4284   0  31  0     6176   1020 -      S    std    
> > 0:00.26
> > -tcsh (tcsh)
> >    501  4376  4375   0  31  0     6176   1016 -      Ss    p2    
> > 0:00.23
> > -tcsh (tcsh)
> >    501  4398  4376   0  31  0    20552   9212 -      R+    p2    
> > 0:06.15
> > texmacs.bin
> >
> > Ok, gs is killed, texmacs is runnable again.
>
> In the second case, a 3.2Mb ps file, you obtain:
>
> > > (In order to check this, you may create a postscript
> > > file which needs a long to be displayed and carefully
> > > track what happens when opening it from TeXmacs).
> > I've tried it with a 3.2 Mo ps file, running from gs
> >
> > I obtain:
> >
> > 1 - first
> >    UID   PID  PPID CPU PRI NI      VSZ    RSS WCHAN  STAT  TT       
> > TIME
> > COMMAND
> >    501  4285  4284   0  31  0     6176   1020 -      S    std    
> > 0:00.36
> > -tcsh (tcsh)
> >    501  4376  4375   0  31  0     6176   1024 -      Ss    p2    
> > 0:00.29
> > -tcsh (tcsh)
> >    501  4714  4376   0  14  0     7272   3512 -      R+    p2    
> > 0:02.29
> > gs balloon-2.en.ps
> >
> > 2 - thereafter
> >    UID   PID  PPID CPU PRI NI      VSZ    RSS WCHAN  STAT  TT       
> > TIME
> > COMMAND
> >    501  4285  4284   0  31  0     6176   1020 -      S    std    
> > 0:00.37
> > -tcsh (tcsh)
> >    501  4376  4375   0  31  0     6176   1024 -      Ss    p2    
> > 0:00.29
> > -tcsh (tcsh)
> >    501  4714  4376   0  31  0     7196   3436 -      S+    p2    
> > 0:02.35
> > gs balloon-2.en.ps
> >
> > When running inside texmacs (insert an image):
> >
> > 1 -
> >    UID   PID  PPID CPU PRI NI      VSZ    RSS WCHAN  STAT  TT       
> > TIME
> > COMMAND
> >    501  4285  4284   0  31  0     6176   1020 -      S    std    
> > 0:00.37
> > -tcsh (tcsh)
> >    501  4376  4375   0  31  0     6176   1024 -      Ss    p2    
> > 0:00.31
> > -tcsh (tcsh)
> >    501  4719  4376   0  28  0    27088  14140 -      R+    p2    
> > 0:09.92
> > texmacs.bin
> >
> > 2 -
> >    UID   PID  PPID CPU PRI NI      VSZ    RSS WCHAN  STAT  TT       
> > TIME
> > COMMAND
> >    501  4285  4284   0  31  0     6176   1020 -      S    std    
> > 0:00.39
> > -tcsh (tcsh)
> >    501  4376  4375   0  31  0     6176   1024 -      Ss    p2    
> > 0:00.31
> > -tcsh (tcsh)
> >    501  4719  4376   0  31  0    27088  14188 -      S+    p2    
> > 0:15.31
> > texmacs.bin
> >    501  4911  4719   0   0  0    14628   3560 -      R+    p2    
> > 0:00.61
> >   (gs)
> >
> > 3-
> >    UID   PID  PPID CPU PRI NI      VSZ    RSS WCHAN  STAT  TT       
> > TIME
> > COMMAND
> >    501  4285  4284   0  31  0     6176   1020 -      S    std    
> > 0:00.39
> > -tcsh (tcsh)
> >    501  4376  4375   0  31  0     6176   1024 -      Ss    p2    
> > 0:00.31
> > -tcsh (tcsh)
> >    501  4719  4376   0  23  0    27088  14188 -      R+    p2    
> > 0:15.45
> > texmacs.bin
> >
> > 4-
> >    UID   PID  PPID CPU PRI NI      VSZ    RSS WCHAN  STAT  TT       
> > TIME
> > COMMAND
> >    501  4285  4284   0  31  0     6176   1020 -      S    std    
> > 0:00.42
> > -tcsh (tcsh)
> >    501  4376  4375   0  31  0     6176   1024 -      Ss    p2    
> > 0:00.31
> > -tcsh (tcsh)
> >    501  4719  4376   0  31  0    22988  10844 -      S+    p2    
> > 0:16.10
> > texmacs.bin
>
> Now in the last case, the gs process has automagically disappeared,
> although TeXmacs did not return to R+. Is that normal,
> or did you press Ctrl-C?
Here it is normal, the file loads correctly, gs does not hang.

Michèle
<http://micmacfr.homeunix.org/>