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From: | Marcus Müller |
Subject: | Re: [Discuss-gnuradio] "Run to completion" not working with message passing blocks |
Date: | Wed, 01 Apr 2015 12:10:41 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 |
Hi Piotr, nice to hear you got a step ahead! so, I did that and what I obtained was: --------------------------------------------------------------------------------------- 16 Thread 0x7fffbdffb700 (LWP 13462) "python" pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 3 Thread 0x7fffe9720700 (LWP 13449) "gsm_clock_offs1" pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 * 1 Thread 0x7ffff7fc7740 (LWP 13444) "python" 0x00007ffff78e8da3 in select () at ../sysdeps/unix/syscall-template.S:81 --------------------------------------------------------------------------------------- I'd have a blind guess: Thread 16 might be the "surviving" part of a python-spawned Timer() thread, which caused a message _post at another thread, which might be something that hangs if that block's thread no longer exists. Can you switch to that thread: thread 16 and then try to get a python backtrace [1] py-bt and maybe a simple C-style backtrace bt that might give you some information what is actually waiting on a condition (which is what I guess from "pthread_cond_wait"). Greetings, Marcus [1] for this to work, you might need to follow these instructions from http://gnuradio.org/redmine/projects/gnuradio/wiki/TutorialsGDB: ... make sure that the python development package is installed ( python-devel
on Redhatoids, python2.7-dev on Debianoids); for some
systems, you should append the content of /usr/share/doc/{python-devel,python2.7-dev}/gdbinit[.gz]
to your ~/.gdbinit , and re-start gdb . |
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