[Gnuplot-bugs] Re: gnuplot cvs x11 terminal bug

[Michael A. P. <mp...@ma...>]

On Sun, 2005-09-18 at 21:10 -0700, Ethan A Merritt wrote:
> On Sunday 18 September 2005 08:41 pm, you wrote:
> > Is this more revealing?
> 
> Well, no.
> That's a trace of gnuplot itself. But it's the auxilliary program 
> gnuplot_x11 that is actually crashing.  So all this trace tells us is that
> gnuplot is unhappy that gnuplot_x11 crashed.
> 
> > If it is not, what can I do to make it more revealing?
> 
> Here is what you can do to isolate gnuplot_x11, and trace
> its behaviour.
> 
> First save the stream of commands that would normally go from
> gnuplot to gnuplot_x11. Put them in a separate file:
> 
>   gnuplot>   set term xlib

Ouch - that results in a problem too.

gnuplot> set term xlib
Terminal type set to 'xlib'
Options are '0'
gnuplot> *** buffer overflow detected ***: gnuplot_x11 terminated
======= Backtrace: =========
/lib/libc.so.6(__chk_fail+0x41)[0x1eec45]
gnuplot_x11[0x804aaa2]
gnuplot_x11[0x80576b6]
gnuplot_x11[0x8059319]
/lib/libc.so.6(__libc_start_main+0xdf)[0x125d5f]
gnuplot_x11[0x804a851]
======= Memory map: ========
00111000-00234000 r-xp 00000000 fd:00 1637568    /lib/libc-2.3.5.so
00234000-00236000 r-xp 00123000 fd:00 1637568    /lib/libc-2.3.5.so
00236000-00238000 rwxp 00125000 fd:00 1637568    /lib/libc-2.3.5.so
00238000-0023a000 rwxp 00238000 00:00 0 
0038e000-00397000 r-xp 00000000 fd:00
1637574    /lib/libgcc_s-4.0.1-20050727.so
.1
00397000-00398000 rwxp 00009000 fd:00
1637574    /lib/libgcc_s-4.0.1-20050727.so
.1
0048b000-004a5000 r-xp 00000000 fd:00 1637567    /lib/ld-2.3.5.so
004a5000-004a6000 r-xp 00019000 fd:00 1637567    /lib/ld-2.3.5.so
004a6000-004a7000 rwxp 0001a000 fd:00 1637567    /lib/ld-2.3.5.so
00595000-00596000 r-xp 00595000 00:00 0 
005d4000-005f7000 r-xp 00000000 fd:00 1637569    /lib/libm-2.3.5.so
005f7000-005f8000 r-xp 00022000 fd:00 1637569    /lib/libm-2.3.5.so
005f8000-005f9000 rwxp 00023000 fd:00 1637569    /lib/libm-2.3.5.so
005fb000-005fd000 r-xp 00000000 fd:00 1637570    /lib/libdl-2.3.5.so
005fd000-005fe000 r-xp 00001000 fd:00 1637570    /lib/libdl-2.3.5.so
005fe000-005ff000 rwxp 00002000 fd:00 1637570    /lib/libdl-2.3.5.so
00616000-006e6000 r-xp 00000000 fd:00
1283972    /usr/X11R6/lib/libX11.so.6.2
006e6000-006ea000 rwxp 000cf000 fd:00
1283972    /usr/X11R6/lib/libX11.so.6.2
006ec000-006fa000 r-xp 00000000 fd:00
1284197    /usr/X11R6/lib/libXext.so.6.4
006fa000-006fb000 rwxp 0000e000 fd:00
1284197    /usr/X11R6/lib/libXext.so.6.4
008eb000-008f2000 r-xp 00000000 fd:00
1284362    /usr/X11R6/lib/libXrender.so.1.
2.2
008f2000-008f3000 rwxp 00007000 fd:00
1284362    /usr/X11R6/lib/libXrender.so.1.
2.2
00c89000-00c92000 r-xp 00000000 fd:00
1286027    /usr/X11R6/lib/libXcursor.so.1.
0.2
00c92000-00c93000 rwxp 00008000 fd:00
1286027    /usr/X11R6/lib/libXcursor.so.1.
0.2
00d02000-00d03000 r-xp 00000000 fd:00
1441346    /usr/X11R6/lib/X11/locale/lib/c
ommon/xlcUTF8Load.so.2
00d03000-00d04000 rwxp 00000000 fd:00
1441346    /usr/X11R6/lib/X11/locale/lib/c
ommon/xlcUTF8Load.so.2
08048000-0805e000 r-xp 00000000 fd:00
196093     /opt/gnuplot/libexec/gnuplot/4.
1/gnuplot_x11
0805e000-08060000 rw-p 00015000 fd:00
196093     /opt/gnuplot/libexec/gnuplot/4.
1/gnuplot_x11
08060000-08063000 rw-p 08060000 00:00 0 
0885d000-08893000 rw-p 0885d000 00:00 0          [heap]
b7d7b000-b7d81000 r--s 00000000 fd:00
1339777    /usr/lib/gconv/gconv-modules.ca
che
b7d81000-b7f81000 r--p 00000000 fd:00
1285084    /usr/lib/locale/locale-archive
b7f81000-b7f83000 rw-p b7f81000 00:00 0 
bf879000-bf88e000 rw-p bf879000 00:00 0          [stack]
gnuplot>

-=-

I'm going to ask for help on the Fedora Devel list, it very well may be
a gcc 4.0.1 problem.
Hopefully a fedora developer who knows a little bit more about tracing
these kind of issues will be able to figure out how to isolate the
issue.

There was a huge bug in xorg-x11 that was caused by a bug in gcc that
took awhile for the gcc team to acknowledge was their bug, I will
compile using an older version of gcc and see if that works out better.

Thanks for your time, and thanks for the effort on gnuplot. I don't
qualify for student version of Mathematica - and I certainly can't
afford the non student version, gnuplot has met my needs exceedingly
well (pslatex is virtually all I use, this bug - yours or gcc, doesn't
really affect me)