Re: Program run at startup hogs cpu?

[Bruce Steers <bsteers4@xxxxxxxxx>]

On Tue, 11 Mar 2025 at 16:43, Benoît Minisini <
benoit.minisini@xxxxxxxxxxxxxxxx> wrote:

> Le 11/03/2025 à 12:17, Bruce Steers a écrit :
> >
> > Here's a peculiar problem...
> > My launcher program Desktop-ish does something strange.
> >
> > For some reason the program hogs the cpu , my fans blow hard and the
> > program uses 98% cpu.
> >
> > If i close it then re-run it from the desktop icon it runs fine and does
> > not hog cpu.
> > If i do not launch it at startup and just run it from the icon it is
> okay.
> >
> > But for some reason launching it from ~/.config/autostart/ makes
> > something go loop-de-loo.
> >
> > Anyone seen anything like this before?
> > Know what might cause it,  know what to do?
> > gmail.txt archive is 600k so I cannot attach.
> > It's on git though...
> > git clone https://gitlab.com/bsteers4/desktop-ish.git <https://
> > gitlab.com/bsteers4/desktop-ish.git>
> >
> > Respects
> > BruceS
>
> Use 'gdb' to know where the infinite loop is:
>
> $ sudo gdb gbr3 <process id of my program>
> ...
> (gdb) bt
> (gdb) p DEBUG_get_current_position()
>
> And send the result of the two last gdb commands.
>
> Regards,
>
> --
> Benoît Minisini.


Thanks Benoit...
(gdb) bt
#0  0x00007ebbe051b4cd in __GI___poll (fds=0x5852867fdf90, nfds=6,
timeout=229) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ebbdd76466e in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ebbdd704a53 in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ebbdddfec19 in gtk_main_iteration () at
/lib/x86_64-linux-gnu/libgtk-3.so.0
#4  0x00007ebbdebc7ae5 in MAIN_do_iteration
(do_not_block=do_not_block@entry=false)
at main.cpp:703
#5  0x00007ebbdebc7b2e in hook_loop () at main.cpp:579
#6  0x0000585246e395ff in main (argc=<optimised out>, argv=<optimised out>)
at gbx.c:520
(gdb) p DEBUG_get_current_position()
$1 = 0x585246e9102d "?"
(gdb)

On closer inspection it does not start at high cpu usage it slowly steadily
increases until eventually maxed out.

Respects
BruceS