Re: [Freevo-devel] kaa-metadata + gtk main loop + subprocess = when child exits, 100% CPU usage

[Juan M. S. <vic...@gm...>]

On Thu, Dec 30, 2010 at 2:06 PM, Jason Tackaberry <ta...@ur...> wrote:

> On Thu, 2010-12-30 at 14:05 -0300, Juan Manuel Santos wrote:
> > Alright, keep me posted and let me know if you need anything else of
> > me.
>
> Yeah, can you still check out strace for me? :)
>
>
When I run strace on my app, I see it hanging here (after I press the button
and the popen call gets executed):

poll([{fd=5, events=POLLIN}, {fd=4, events=POLLIN}, {fd=3, events=POLLIN}],
3, -1) = 1 ([{fd=3, revents=POLLIN}])
read(4, 0x864c620, 4096)                = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=5, events=POLLIN}, {fd=4, events=POLLIN}, {fd=3, events=POLLIN}],
3, -1) = 1 ([{fd=3, revents=POLLIN}])
read(4, 0x864c620, 4096)                = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=5, events=POLLIN}, {fd=4, events=POLLIN}, {fd=3, events=POLLIN}],
3, -1) = 1 ([{fd=3, revents=POLLIN}])
read(4, 0x864c620, 4096)                = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=5, events=POLLIN}, {fd=4, events=POLLIN}, {fd=3, events=POLLIN}],
3, -1) = 1 ([{fd=3, revents=POLLIN}])
read(4, 0x864c620, 4096)                = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=5, events=POLLIN}, {fd=4, events=POLLIN}, {fd=3, events=POLLIN}],
3, -1) = 1 ([{fd=3, revents=POLLIN}])
read(4, 0x864c620, 4096)                = -1 EAGAIN (Resource temporarily
unavailable)

Is this useful? I just ran "strace python algo.py", sorry if I am quite a
rookie with strace, never really used it a lot.