Re: insight crash

[Fernando Nasser <fnasser@redhat.com>]

The stack trace you posted (although incomplete) seems to indicate
that there was a problem reading the symbols of a C++ program.

Why don't you try calling GDB with the "-nw" parameter and see if it
crashes or not?  This way we can confirm where the problem lies.

Fernando

P.S.: Was this C++ program generated with g++?  Which version?


Barry Branham wrote:
> 
> Hi,
> 
> Insight crashes when I run it on on RedHat 7.0.  I was using it
> previously on RH 6.2 and it ran fine.  I recently upgraded to RH7.0 and
> installed insight+dejagnu-20001213.  It config'd ok, make'd with minor
> warnings and installed ok.
> 
> When I run with an executable as argument, it a long time passes and
> then it seg faults.
> Without an argument it displays an empty source window - no menu bar etc
> but doesn't crash.
> 
> Today I got similiar results with insight+dejagnu-20010106.
> When it crashes, 'gdb /usr/local/bin/gdb core' (regular gdb) gives the
> following:
> 
> [bhb@vger bhb]$ gdb /usr/local/bin/gdb core
> GNU gdb 5.0
> Copyright 2000 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you
> are
> welcome to change it and/or distribute copies of it under certain
> conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for
> details.
> This GDB was configured as "i386-redhat-linux"...
> Core was generated by `/usr/local/bin/gdb /usr/local/bin/Dash'.
> Program terminated with signal 11, Segmentation fault.
> Reading symbols from /usr/lib/libncurses.so.5...done.
> Loaded symbols for /usr/lib/libncurses.so.5
> Reading symbols from /usr/X11R6/lib/libX11.so.6...done.
> Loaded symbols for /usr/X11R6/lib/libX11.so.6
> Reading symbols from /lib/libdl.so.2...done.
> Loaded symbols for /lib/libdl.so.2
> Reading symbols from /lib/libm.so.6...done.
> Loaded symbols for /lib/libm.so.6
> Reading symbols from /lib/libc.so.6...done.
> Loaded symbols for /lib/libc.so.6
> Reading symbols from /lib/ld-linux.so.2...done.
> Loaded symbols for /lib/ld-linux.so.2
> Reading symbols from /lib/libthread_db.so.1...done.
> Loaded symbols for /lib/libthread_db.so.1
> #0  0x401cb245 in chunk_alloc (ar_ptr=0x0, nb=0) at malloc.c:2736
> 2736 malloc.c: No such file or directory.
> (gdb)
> 
> backtrace gives this:
> 
> (gdb) bt
> #0  0x401cb245 in chunk_alloc (ar_ptr=0x0, nb=0) at malloc.c:2736
> #1  0x401cb08e in __libc_malloc (bytes=32) at malloc.c:2704
> #2  0x80d853a in xmmalloc (md=0x0, size=32) at utils.c:1024
> #3  0x80d85a8 in xmalloc (size=32) at utils.c:1059
> #4  0x8185274 in string_need (s=0xbf800290, n=16) at cplus-dem.c:4721
> #5  0x81853c5 in string_appendn (p=0xbf800290,
>     s=0x8569814 "mainWindowWidget__C14VkSimpleWindow", n=16) at
> cplus-dem.c:4808
> #6  0x8184dc2 in demangle_function_name (work=0xbf8002d0,
> mangled=0xbf8002c4,
>     declp=0xbf800290, scan=0x8569824 "__C14VkSimpleWindow") at
> cplus-dem.c:4558
> #7  0x8182963 in iterate_demangle_function (work=0xbf8002d0,
> mangled=0xbf8002c4,
>     declp=0xbf800290, scan=0x8569824 "__C14VkSimpleWindow") at
> cplus-dem.c:2569
> #8  0x8182e5f in demangle_prefix (work=0xbf8002d0, mangled=0xbf8002c4,
>     declp=0xbf800290) at cplus-dem.c:2818
> #9  0x8180c80 in internal_cplus_demangle (work=0xbf8002d0,
>     mangled=0x8569814 "mainWindowWidget__C14VkSimpleWindow") at
> cplus-dem.c:1108
> #10 0x8180971 in cplus_demangle (
>     mangled=0x8569814 "mainWindowWidget__C14VkSimpleWindow", options=3)
>     at cplus-dem.c:928
> #11 0x80960d8 in lookup_symbol (
>     name=0x8569814 "mainWindowWidget__C14VkSimpleWindow",
> block=0x86fc7c8,
>     namespace=VAR_NAMESPACE, is_a_field_of_this=0x0, symtab=0x0) at
> symtab.c:587
> #12 0x8096100 in lookup_symbol (
>     name=0x8569814 "mainWindowWidget__C14VkSimpleWindow",
> block=0x86fc7c8,
>     namespace=VAR_NAMESPACE, is_a_field_of_this=0x0, symtab=0x0) at
> symtab.c:595
> #13 0x8096100 in lookup_symbol (
>     name=0x8569814 "mainWindowWidget__C14VkSimpleWindow",
> block=0x86fc7c8,
> ---Type <return> to continue, or q <return> to quit---q
> 
> subsequent frames repeat...
> 
> So it looks like we're running out of memory.  Running top during this
> shows size getting up to 25Mb before the segfault.
> 
> Any help much appreciated.
> Barry Branham

-- 
Fernando Nasser
Red Hat Canada Ltd.                     E-Mail:  fnasser@redhat.com
2323 Yonge Street, Suite #300
Toronto, Ontario   M4P 2C9