Re: ddd crash on Red Hat Linux 7.4

[Zaiwen Gong]

Hi Michael,

I have got ddd to work on my RH 7.4 by upgrading the motif rpm from 
motif-2.3.4-8.1.el7_3.x86_64 to motif-2.3.4-12.el7_4.x86_64.

Thanks,
Zaiwen

On 11/22/17 09:20, Zaiwen Gong wrote:
> Hi Michael,
>
> Well that's interesting ..... use a debugger to debug a debugger :-)
>
> Here's what I get but I don't think it will help ex it crashes in X
>
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x00007ffff724a1a9 in _XtWindowedAncestor () from /lib64/libXt.so.6
> (gdb) bt full
>
> #0  0x00007ffff724a1a9 in _XtWindowedAncestor () from /lib64/libXt.so.6
> No symbol table info available.
> #1  0x00007ffff724ab31 in XtWindowOfObject () from /lib64/libXt.so.6
> No symbol table info available.
> #2  0x00007ffff7aa9808 in _XmEventDispatcher () from /lib64/libXm.so.4
> No symbol table info available.
> #3  0x00007ffff7243a39 in XtDispatchEvent () from /lib64/libXt.so.6
> No symbol table info available.
> #4  0x00005555555ac5aa in process_next_event() ()
> No symbol table info available.
> #5  0x00005555556669e5 in ddd_main_loop() ()
>
>
> Again, thank you so much for helping me!
>
> Thanks,
>
> Zaiwen
>
>
> On 11/21/17 17:13, Michael Eager wrote:
> > Hi Zaiwen --
> >
> > Third thing to try is to run DDD under GDB, repeat your test, and see 
> > where (or if) it is crashing.
> >
> > If it crashes, then you can get a backtrace in GDB.  That might give 
> > a hint about why it is crashing and possibly answer your question 
> > about your configuration.  (I see a variety of odd behaviors with DDD 
> > on CentOS 7.4, the most common being that it stalls waiting for GDB.)
> >
> > Hope this helps.  I've done very little internal work with DDD and 
> > most of the problems seem to be in the Motif interface, which is (to 
> > me, at least) unclear.
> >
> >
> > On 11/21/2017 12:46 PM, Zaiwen Gong wrote:
> > > Hi Michael,
> > >
> > > Thank you very much for the reply.
> > >
> > > First, I tried to to do the same operation without DDD, using GDB 
> > > from the command line:
> > >
> > >     #gdb ./simpleProg
> > >     GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-100.el7
> > >     Copyright (C) 2013 Free Software Foundation, Inc.
> > >     License GPLv3+: GNU GPL version 3 or later
> > >     <http://gnu.org/licenses/gpl.html>
> > >     This is free software: you are free to change and redistribute it.
> > >     There is NO WARRANTY, to the extent permitted by law. Type "show
> > >     copying"
> > >     and "show warranty" for details.
> > >     This GDB was configured as "x86_64-redhat-linux-gnu".
> > >     For bug reporting instructions, please see:
> > >     <http://www.gnu.org/software/gdb/bugs/>...
> > >     Reading symbols from /cfs/ad/binello/test/simpleProg...done.
> > >     (gdb) br main
> > >     Breakpoint 1 at 0x4005f5: file simpleProg.cxx, line 5.
> > >     (gdb) run
> > >     Starting program: /cfs/ad/binello/test/./simpleProg
> > >     in cshrc
> > >     xterm-256color
> > >     C
> > >
> > >     Breakpoint 1, main () at simpleProg.cxx:5
> > >     5         int x = 1;
> > >     Missing separate debuginfos, use: debuginfo-install
> > >     glibc-2.17-196.el7.x86_64 libgcc-4.8.5-16.el7.x86_64
> > >     libstdc++-4.8.5-16.el7.x86_64
> > >     (gdb) p x
> > >     $1 = 0
> > >
> > > so far so good, but the action next (type anything into the debugger 
> > > at the gdb prompt) is a GUI action and I can't do it on the command 
> > > line.
> > >
> > > Second, I  tried to remove my ~/.ddd directory, but same problem.
> > >
> > > I am glad you confirmed that you are using ddd-3.3.12 on CentOS 7.4 
> > > without crashing. There may be something wrong in my configuration?
> > >
> > >
> > > Thanks,
> > >
> > > Zaiwen
> > >
> > >
> > > On 11/21/17 14:58, Michael Eager wrote:
> > > > Hi Zaiwen --
> > > >
> > > > First, try to do the same operation without DDD, using GDB from the 
> > > > command line.  That will help decide whether this is a DDD problem 
> > > > or GDB problem.
> > > >
> > > > Second, remove your ~/.ddd directory and try re-running your test.
> > > >
> > > > If it is any consolation, I run ddd-3.3.12 on CentOS 7.4 without 
> > > > crashing.
> > > >
> > > > On 11/21/2017 10:05 AM, Zaiwen Gong wrote:
> > > > > Hi,
> > > > >
> > > > > I am using ddd-3.3.12-20.el7.x86_64 on Red Hat Linux 7.4 
> > > > > (3.10.0-693.2.1.el7.x86_64).
> > > > >
> > > > > I would like to know if it is supported?
> > > > >
> > > > > Below is a simple program. It will crash if in ddd I right click 
> > > > > on x and select print and then later try to type anything into the 
> > > > > debugger at the gdb prompt
> > > > >
> > > > >      #include <stdio.h>
> > > > >
> > > > >      int main ()
> > > > >      {
> > > > >          int x = 1;
> > > > >          printf ("%d",x );
> > > > >
> > > > >          return 0;
> > > > >        }
> > > > >
> > > > > #To build ....
> > > > > #g++ -g simpleProg.cxx -o simpleProg
> > > > >
> > > > > Has anyone been using ddd in Red Hat Linux 7.4 and encountered the 
> > > > > same crash?
> > > > >
> > > > > I have opened an issue here:
> > > > >
> > > > >   * https://savannah.gnu.org/support/index.php?109420
> > > > >
> > > > > Any reply will be highly appreciated.
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Zaiwen
> > > > >
> > > > > --
> > > > > Zaiwen Gong
> > > > > System Administration Group
> > > > > Controls Systems Section
> > > > > Collider-Accelerator Department
> > > > > Brookhaven National Laboratory
> > > > > Telephone: (631)344-2938
> > > > > email:address@hidden