Re: [Texmacs-dev] Problem with Ghostscript

[Joris van der Hoeven]

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?