[Xastir-dev] Segfault on list close

[John Ronan]

On 28 Jul 2010, at 07:55, Curt, WE7U wrote:

> On Thu, 22 Jul 2010, Robert Mead wrote:
> 
>> Using the latest CVS of Xastir, I get a segfault on closing any of
>> the station list dialog boxes. I'm running Mac OS X 10.6.4 on a
>> multiprocessor machine, which I mention since it seems to be
>> related to threading. While doing a GDB step-through of
>> list_gui.c:station_list_destroy_shell, it does not crash.
>> 
>> I can't find the offending line, since I think I'm segfaulting
>> somewhere in the Xt code after something's been mistakenly free'd
>> and my gdb-fu is not strong.
> 
> Any Mac people seeing the same, or can help him debug this?
I can confirm it's happening with me as well (10.6.4).  I don't normally go in there, so I hadn't spotted it up to now.

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x000000000000002b
0x0000000100dc643f in SortChildren ()
(gdb) bt
#0  0x0000000100dc643f in SortChildren ()
#1  0x0000000100fdbb8b in XtPhase2Destroy ()
#2  0x0000000100fdbd62 in _XtDoPhase2Destroy ()
#3  0x0000000100fdf46f in XtDispatchEvent ()
#4  0x0000000100fdf571 in XtAppMainLoop ()
#5  0x00000001000bdf77 in main (argc=1, argv=0x7fff5fbff8f8, envp=<value temporarily unavailable, due to optimizations>) at ../../xastir/src/main.c:27950
(gdb)