X applications seg faulting

[Adam K Kirchhoff]

Adam K Kirchhoff wrote:
> Rene Ladan wrote:
>> Adam K Kirchhoff schreef:
>>  
>>> So I'm hoping for a little more guidance.  I've managed to get the
>>> modular X server up and running from the ports tree.  I did not install
>>> the entire xorg metapackage due to problems with some of the input
>>> drivers, so I just manually installed the necessary drivers.  I've
>>> installed some X11 client applications from the ports tree, 
>>> including rxvt.
>>>
>>> Though I can launch the X server, any X clients will automatically
>>> segfault, including xinit.  In fact, this is clearly completely
>>> unrelated to the X server as those client apps segfault when being
>>> launched on a remote X server.  If I ssh in, and try to launch rxvt, I
>>> get a segfault.  The backtrace shows:
>>>
>>> (gdb) run
>>> Starting program: /usr/X11R6/bin/rxvt
>>> (no debugging symbols found)...(no debugging symbols found)...(no
>>> debugging symbols found)...
>>> Program received signal SIGSEGV, Segmentation fault.
>>> 0x08240250 in ?? ()
>>> (gdb) bt
>>> #0  0x08240250 in ?? ()
>>> #1  0x280dd81f in _XReply () from /usr/X11R6/lib/libX11.so.6
>>> #2  0x280ba20e in XListFonts () from /usr/X11R6/lib/libX11.so.6
>>> #3  0x2810af86 in get_font_name () from /usr/X11R6/lib/libX11.so.6
>>> #4  0x2810b4f8 in parse_fontdata () from /usr/X11R6/lib/libX11.so.6
>>> #5  0x2810c5ef in create_oc () from /usr/X11R6/lib/libX11.so.6
>>> #6  0x280c5c54 in XCreateOC () from /usr/X11R6/lib/libX11.so.6
>>> #7  0x280bad14 in XCreateFontSet () from /usr/X11R6/lib/libX11.so.6
>>> #8  0x0804d5a3 in ?? ()
>>> #9  0x08210800 in ?? ()
>>> #10 0x08290240 in ?? ()
>>> #11 0xbfbfeac0 in ?? ()
>>> #12 0xbfbfeac4 in ?? ()
>>> #13 0xbfbfeac8 in ?? ()
>>> #14 0x0805aaa9 in ?? ()
>>> #15 0xbfbfeac8 in ?? ()
>>> #16 0x281d4b15 in __detect_path_locale () from /lib/libc.so.7
>>> #17 0x0804d603 in ?? ()
>>> #18 0x00e00002 in ?? ()
>>> #19 0x00000000 in ?? ()
>>> #20 0x00000001 in ?? ()
>>> #21 0xbfbfeb88 in ?? ()
>>> #22 0x00000001 in ?? ()
>>> #23 0x00000000 in ?? ()
>>> #24 0xbfbfeb38 in ?? ()
>>> #25 0x080517f4 in ?? ()
>>> #26 0x00000001 in ?? ()
>>> #27 0xbfbfeb88 in ?? ()
>>> #28 0x00000000 in ?? ()
>>> #29 0xbfbfec04 in ?? ()
>>> #30 0x2826c520 in _nsyyin () from /lib/libc.so.7
>>> #31 0x28089600 in ?? ()
>>> #32 0xbfbfeb30 in ?? ()
>>> #33 0x00000001 in ?? ()
>>> #34 0xbfbfeb90 in ?? ()
>>> #35 0x2806288c in fetch_ventry () from /libexec/ld-elf.so.1
>>> Previous frame inner to this frame (corrupt stack?)
>>>
>>> Does anyone have any ideas?  Thanks!
>>>
>>> Adam
>>>
>>>
>>>     
>> 1.  Which version of libX11 do you have?  1.0.99.2 is troublesome (at
>> least for me).
>>
>> 2. backtraces are only useful with debugging symbols (add -g to CFLAGS
>> in /etc/make.conf and recompile X).
>>
>> Regards,
>> Rene
>>   
>
> So here's a backtrace of xterm after recompiling everything with 
> debugging symbols:
>
> (gdb) run
> Starting program: /usr/X11R6/bin/xterm
> warning: Unable to get location for thread creation breakpoint: 
> generic error
> [New LWP 100105]
> [New Thread 0x82502e0 (LWP 100163)]
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x82502e0 (LWP 100169)]
> 0x00000000 in ?? ()
> (gdb) bt
> #0  0x00000000 in ?? ()
> #1  0x281ae8bf in _XReply (dpy=0x8291000, rep=0xbfbfe9a0, 
> extra=136376640, discard=1) at xcb_io.c:290
> #2  0x281929b4 in XInternAtom (dpy=0x8291000, name=0x28333678 "Custom 
> Init", onlyIfExists=0) at IntAtom.c:185
> #3  0x28305b5e in InitPerDisplay (dpy=0x8291000, app=0x8220580, 
> name=0xbfbfed97 "xterm", classname=0x807abc8 "XTerm") at Display.c:229
> #4  0x28305c8e in XtOpenDisplay (app=0x8220580, displayName=0x0, 
> applName=0xbfbfed97 "xterm", className=0x807abc8 "XTerm", 
> urlist=0x8083aa0,
>    num_urs=136, argc=0xbfbfec50, argv=0xbfbfec9c) at Display.c:284
> #5  0x283061ce in _XtAppInit (app_context_return=0xbfbfeabc, 
> application_class=0x807abc8 "XTerm", options=0x8083aa0, num_options=136,
>    argc_in_out=0xbfbfec50, argv_in_out=0xbfbfeb14, 
> fallback_resources=0x8083a60) at Display.c:331
> #6  0x2830f5f9 in XtOpenApplication (app_context_return=0x808b4fc, 
> application_class=0x807abc8 "XTerm", options=0x8083aa0, num_options=136,
>    argc_in_out=0xbfbfec50, argv_in_out=0xbfbfec9c, 
> fallback_resources=0x8083a60, widget_class=0x28339140, args_in=0x0, 
> num_args_in=0)
>    at Initialize.c:979
> #7  0x0806386f in ?? ()
> #8  0x0808b4fc in environ ()
> #9  0x0807abc8 in ?? ()
> #10 0x08083aa0 in __progname ()
> #11 0x00000088 in ?? ()
> #12 0xbfbfec50 in ?? ()
> #13 0xbfbfec9c in ?? ()
> #14 0x08083a60 in __progname ()
> #15 0x28339140 in sessionShellWidgetClass () from 
> /usr/X11R6/lib/libXt.so.6
> #16 0x00000000 in ?? ()
> #17 0x00000000 in ?? ()
> #18 0xbfbfec48 in ?? ()
> #19 0x08063830 in ?? ()
> #20 0x00000019 in ?? ()
> #21 0x00000012 in ?? ()
> #22 0x283b7689 in __error () from /lib/libpthread.so.2
> #23 0x0804d1ce in ?? ()
> #24 0x00000001 in ?? ()
> #25 0xbfbfec9c in ?? ()
> #26 0xbfbfeca4 in ?? ()
> #27 0x082502e0 in ?? ()
> #28 0x08076944 in ?? ()
> #29 0x00000000 in ?? ()
> #30 0x00000000 in ?? ()
> #31 0x280868f2 in .rtld_start () from /libexec/ld-elf.so.1
> #32 0xbfbfec98 in ?? ()
> #33 0xbfbfec80 in ?? ()
> #34 0xbfbfec84 in ?? ()
> #35 0x00000000 in ?? ()
> #36 0x2808788c in fetch_ventry () from /libexec/ld-elf.so.1
> #37 0x00000001 in ?? ()
> (gdb) quit
> The program is running.  Exit anyway? (y or n) y
> %exit
>
> When I get a chance today, I'll try and grab a different version of 
> libX11 to see if it makes a difference.

FYI all,

    I grabbed the latest libX11 from freedesktop's git repo, installed 
it on top of the already installed version, and it appears to be working 
fine now.  Thanks for your help!

Adam