Re: [RP] Ratpoison makes xterm segfault

[Jonathan Walther]

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the LANG=C thing didn't help; sorry.

Here is the backtrace from gdb on the corefile with -ggdb3 enabled:
The version of xterm is 150.

address@hidden djw]$ bin/xterm
Segmentation fault (core dumped)
address@hidden djw]$ gdb bin/xterm core
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This GDB was configured as "i386-redhat-linux"...
Core was generated by `bin/xterm'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/X11R6/lib/libXaw.so.6...done.
Reading symbols from /usr/X11R6/lib/libXmu.so.6...done.
Reading symbols from /usr/X11R6/lib/libXext.so.6...done.
Reading symbols from /usr/X11R6/lib/libXt.so.6...done.
Reading symbols from /usr/X11R6/lib/libSM.so.6...done.
Reading symbols from /usr/X11R6/lib/libICE.so.6...done.
Reading symbols from /usr/X11R6/lib/libX11.so.6...done.
Reading symbols from /lib/libnsl.so.1...done.
Reading symbols from /lib/libtermcap.so.2...done.
Reading symbols from /lib/libc.so.6...done.
Reading symbols from /lib/ld-linux.so.2...done.
Reading symbols from /lib/libnss_files.so.2...done.
#0  0x80709b0 in handle_translated_exposure (screen=0x809a3bc, rect_x=0, 
rect_y=0, rect_width=1280, rect_height=1024) at ./util.c:1113
1113            leftcol = (rect_x - OriginX(screen))
(gdb) bt
#0  0x80709b0 in handle_translated_exposure (screen=0x809a3bc, rect_x=0, 
rect_y=0, rect_width=1280, rect_height=1024) at ./util.c:1113
#1  0x807072d in HandleExposure (screen=0x809a3bc, event=0xbfffe5e0) at 
./util.c:1060
#2  0x805632b in VTExpose (w=0x809a340, event=0xbfffe5e0, region=0x0) at 
./charproc.c:3973
#3  0x8066eab in Redraw () at ./misc.c:763
#4  0x806d269 in ScrollBarOn (xw=0x809a340, init=0, doalloc=1) at 
./scrollbar.c:430
#5  0x805843f in VTRealize (w=0x809a340, valuemask=0xbfffe744, 
values=0xbfffe758) at ./charproc.c:4759
#6  0x400933db in RealizeWidget () from /usr/X11R6/lib/libXt.so.6
#7  0x400935dd in RealizeWidget () from /usr/X11R6/lib/libXt.so.6
#8  0x400936b4 in XtRealizeWidget () from /usr/X11R6/lib/libXt.so.6
#9  0x8056758 in VTInit () at ./charproc.c:4128
#10 0x806288b in spawn () at ./main.c:2620
#11 0x8061f7a in main (argc=0, argv=0xbffffce8) at ./main.c:1895
(gdb)

On Fri, 16 Feb 2001, Gergely Nagy wrote:
> Thus spoke Jonathan Walther <address@hidden> on 2001-02-13 16:07:12:
> [snip]
> > QTDIR=/usr/lib/qt-2.1.0
> 
> This is Evil. :>
> 
> [snip]
> > LANG=en_US
> [snip]
> 
> Hmm... I heard about some Xlib - GLibc locale conflict...
> Could you try it with LANG=C ? Very unlikely that that would
> cause this, but let's hope...
> 
> [snip]
> 
> I couldn't figure out anything from the strace/gdb output :(.
> Could you please send me your xterm binary ? Or better, if we
> could meet on IRC somewhere, that would be the best...
> 
> In the mean time, if you have plenty of time & you have the
> resources, you could try compiling an xterm with debugging
> symbols (CFLAGS=-ggdb3 or something like that should do the
> trick), and retry with gdb...
> 
> Furthermore, something like this (in gdb) could help a little:
> > break main
> > run
> [if it segfaults, before main, I have no idea...]
> [if it does not, then there's still hope :]
> > next
> [repeat until it segfaults...]
> 
> Now try a show [whatever variable was given to the function that
> segfaulted] & things like that.

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