[Fxruby-users] segfault with FXTreeList in Ruby 1.8.0

[Joel V. <vj...@PA...>]

Has anyone seen this? I'm getting a segfault in a finalizer for a 
FXTreeList. It happens in 1.8.0, but not 1.7.3.

Here's the backtrace:

Program received signal SIGSEGV, Segmentation fault.
0x0805947b in rb_longjmp (tag=6, mesg=0) at eval.c:3924
3924        JUMP_TAG(tag);
(gdb) bt
#0  0x0805947b in rb_longjmp (tag=6, mesg=0) at eval.c:3924
#1  0x080594f1 in rb_exc_raise (mesg=1087374512) at eval.c:3931
#2  0x080bfe08 in rb_raise (exc=1075655904,
     fmt=0x80dafe0 "wrong argument type %s (expected %s)") at error.c:694
#3  0x080befb4 in rb_check_type (x=0, t=135298648) at error.c:254
#4  0x40339825 in SWIG_ConvertPtr (obj=1087378452, ptr=0xbfffede0,
     ty=0x406d0580, flags=1) at librb.c:403
#5  0x405a00c2 in _wrap_FXTreeItem_setFocus (argc=1, argv=0xbfffeff0,
     self=1087378452) at treelist_wrap.cpp:685
#6  0x080660b6 in call_cfunc (func=0x405a006c <_wrap_FXTreeItem_setFocus>,
     recv=1087378452, len=0, argc=1, argv=0xbfffeff0) at eval.c:4769
#7  0x0805b37f in rb_call0 (klass=1087138004, recv=1087378452, id=18049,
     oid=0, argc=1, argv=0xbfffeff0, body=0x40cc6460, nosuper=0) at 
eval.c:4906
#8  0x0805bb47 in rb_call (klass=1087138004, recv=1087378452, mid=18049,
     argc=1, argv=0xbfffeff0, scope=1) at eval.c:5123
#9  0x0805bdbd in rb_funcall (recv=1087378452, mid=18049, n=1) at ruby.h:626
#10 0x405392e5 in void FXRbCallVoidMethod<unsigned char>(FXObject*, 
unsigned long, unsigned char) (recv=0x82cc160, func=18049, arg=1 '\001')
     at include/FXRuby.h:285
#11 0x405365a8 in FXRbTreeItem::setFocus(unsigned char) (this=0x82cc160,
     focus=1 '\001') at impl.cpp:901
#12 0x408f9f93 in FXTreeList::removeItem(FXTreeItem*, unsigned char) ()
    from /usr/local/lib/libFOX-1.0.so.0
#13 0x408fa041 in FXTreeList::removeItems(FXTreeItem*, FXTreeItem*, 
unsigned cha---Type <return> to continue, or q <return> to quit---li
r) () from /usr/local/lib/libFOX-1.0.so.0
#14 0x408f9cd6 in FXTreeList::removeItem(FXTreeItem*, unsigned char) ()
    from /usr/local/lib/libFOX-1.0.so.0
#15 0x408fa041 in FXTreeList::removeItems(FXTreeItem*, FXTreeItem*, 
unsigned char) () from /usr/local/lib/libFOX-1.0.so.0
#16 0x408fa08c in FXTreeList::clearItems(unsigned char) ()
    from /usr/local/lib/libFOX-1.0.so.0
#17 0x408fa87a in FXTreeList::~FXTreeList() ()
    from /usr/local/lib/libFOX-1.0.so.0
#18 0x403c47a8 in ~FXRbTreeList (this=0x82c1b70) at 
include/FXRbTreeList.h:193
#19 0x4059a44d in FXRbObject::freefunc(FXObject*) (self=0x82c1b70)
     at markfuncs.cpp:78
#20 0x0806c59a in rb_gc_call_finalizer_at_exit () at gc.c:1607
#21 0x08053609 in ruby_finalize_0 (exp=0xbffff3b0) at eval.c:1333
#22 0x0805377b in ruby_cleanup (ex=0) at eval.c:1368
#23 0x0805388f in ruby_stop (ex=0) at eval.c:1395
#24 0x080538d4 in ruby_run () at eval.c:1407
#25 0x08051c01 in main (argc=2, argv=0xbffff454, envp=0xbffff460) at 
main.c:50
#26 0x400877f7 in __libc_start_main () from /lib/i686/libc.so.6

-- 
Joel VanderWerf                          California PATH, UC Berkeley
mailto:vj...@pa...                     Ph. (510) 231-9446
http://www.path.berkeley.edu                       FAX (510) 231-9565