[Python-Dev] bug in python arm-linux?: start_new_thread fails after popen (original) (raw)

Jeff Epler jepler at unpythonic.net
Wed Dec 17 10:14:50 EST 2003

On Wed, Dec 17, 2003 at 03:01:00PM +0100, Michael Lauer wrote:

Hi, I have a python program which works fine on x86 but doesn't work on any of my arm-linux devices (Zaurus, Ipaq, SIMpad) - all of them are running Python 2.3.2 on top of glibc 2.3.2+linuxthreads on top of kernel 2.4.18-rmk6-pxa3 respectively kernel 2.4.19-rmk7.

Using threads and fork together seems to be a big smelly armpit in Python. There are also problems on redhat9, where signals in a fork+exec'd subprocess are blocked, for instance. This seemed to be a consequence of blocking all signals in thread_pthread.h:PyThread_start_new_thread(). Perhaps pthread_atfork() could be used to fix this problem, though I know next to nothing about pthreads beyond the documentation I glanced at back when I first became aware of my thread+fork problem and before writing this message.

Jeff

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