Re: Core dump in the latest CDK

[Thomas Dickey]

On Tue, 3 Jan 2006, Fu Steve X wrote:

> Thomas,
>
> I started to look at version 20051230. Some fixes works well such as the
> setCDKFocusFirst function and getting rid of multiple highlighted widgets
> when first popping up. Thanks so much!
>
> Please take a look at the core dump below. Thanks.

Is this with Solaris curses?  There could be some place where it returns
a null WINDOW pointer that ncurses does not.  A quick check with ncurses
and valgrind isn't showing me a problem.

The quick fix of course would be to add a null-pointer check in 
fixCursorPosition(), but it would also be good to fix whatever problem is
producing the null-pointer check.

thanks

> Steve Fu
>
> ------------------------ cut here -----------------
>
> program terminated by signal SEGV (no mapping at the fault address)
> 0xffffffff7e225d50: wmove+0x0020:       ldsh     [%i0 + 6], %g4
> Current function is fixCursorPosition
>  215      wmove(InputWindowOf(widget), ypos, xpos);
> (dbx) where
>
>  [1] wmove(0x0, 0x1, 0x1, 0x1b, 0x232d, 0x0), at 0xffffffff7e225d50
> =>[2] fixCursorPosition(widget = 0x100280670), line 215 in "scroll.c"
>  [3] _injectCDKScroll(object = 0x100280670, input = 27U), line 375 in
> "scroll.c"
>  [4] traverseCDKOnce(screen = 0x100185950, curobj = 0x100280670, keyCode =
> 27, functionKey = 0, funcMenuKey = 0x10005c1c0 =
> &`assn.exe`traverse.c`checkMenuKey(int keyCode, int functionKey)), line 291
> in "traverse.c"
>  [5] traverseCDKScreen(screen = 0x100185950), line 370 in "traverse.c"

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net