[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: core dump in torture test
From: |
Thomas Dickey |
Subject: |
Re: core dump in torture test |
Date: |
Sat, 19 Oct 2002 16:35:13 -0400 |
User-agent: |
Mutt/1.3.27i |
On Sat, Oct 19, 2002 at 04:02:48PM -0400, Lucas Gonze wrote:
>
> Compile and run the enclosed code in a terminal -- I'm using konsole.
> Grab the right terminal border and resize back and forth, fast, about 20
> times.
>
> Crash.
>
> In the following, the crash only occurs if the window has contents. As it
> stands there is a single label in the window. If I remove the label the
> crash goes away.
Reading quickly, it seems your sigwinch handler is calling code that
can break things (malloc and stdio stuff). There's not much you can
do in a signal handler if you're planning to come back to the interrupted
program, other than set variables to tell that an interrupt occurred.
> void recalc_window(){
>
> if( !cdkscreen )
> return;
>
> // reinitialize the screen to match new coordinates
> destroyCDKScreen (cdkscreen);
> endCDK();
> init_screen();
>
> // redraw to pickup changes
> refreshCDKScreen(cdkscreen);
>
> }
...
> void winchange_handler(int signo){
> signal(SIGCHLD, SIG_IGN); // don't get stuck in a recursive call
> if( victim == NULL ){
> // not initialized yet, so there's no window to change
> signal(SIGWINCH, winchange_handler);
> return;
> }
> victim->recalc_window();
> signal(SIGWINCH, winchange_handler);
> }
...
> int main (int argc, char **argv){
>
> signal(SIGWINCH, winchange_handler);
>
> victim = new TortureTestWindow();
> victim->wait_for_any_key();
> delete victim;
> }
--
Thomas E. Dickey <address@hidden>
http://invisible-island.net
ftp://invisible-island.net
- conflict of include name, Lucas Gonze, 2002/10/19
- Re: conflict of include name, Thomas Dickey, 2002/10/19
- Re: conflict of include name, Lucas Gonze, 2002/10/19
- infinite loop in abort handler, Lucas Gonze, 2002/10/19
- core dump in torture test, Lucas Gonze, 2002/10/19
- Re: core dump in torture test,
Thomas Dickey <=
- Re: core dump in torture test, Lucas Gonze, 2002/10/19
- Re: core dump in torture test, Thomas Dickey, 2002/10/19
- Re: core dump in torture test, Lucas Gonze, 2002/10/19
- Re: core dump in torture test, Thomas Dickey, 2002/10/19
- Re: core dump in torture test, Lucas Gonze, 2002/10/19
- Re: core dump in torture test, Lucas Gonze, 2002/10/20
- CDK color map, Lucas Gonze, 2002/10/20
- \n in swindow has no effect, Lucas Gonze, 2002/10/20
- Re: \n in swindow has no effect, Thomas Dickey, 2002/10/20
- horizontal resize + wide swindow causes core dump, Lucas Gonze, 2002/10/21