greenlet solaris crasher Upon interrupting this (^C) this crashes reliably: $ pybin/bin/python test2.py ^CException in thread Thread-14: Traceback (most recent call last): File "/export/home/flub/issue546/greenlet-issue14/pybin/lib/python2.7/threading.py", line 551, in __bootstrap_inner self.run() File "test2.py", line 23, in run gt.switch() Sys…

gistfile1.py

import sys
import threading
import time

import greenlet


sys.setcheckinterval(0)


class HubThread(threading.Thread):
    """A thread running multiple greenlets and switching between them"""

    def run(self):
        self.main_gt = greenlet.getcurrent()
        while True:
            coros = set()
            for i in range(42):
                coros.add(greenlet.greenlet(self.function_a))
                coros.add(greenlet.greenlet(self.function_b))
            while coros:
                gt = coros.pop()
                gt.switch()
                if gt:
                    coros.add(gt)

    def function_a(self, n=5):
        """A function just to have some frames on the stack"""
        msg = 'A variable allocated on the stack'
        # if n == 5:
        #     print 'a',
        if (n % 2) == 0:
            self.main_gt.switch()
        if n > 0:
            return self.function_b(n - 1)
        else:
            return msg

    def function_b(self, n=5):
        """A second function to have some frames on the stack

        We use 2 functions to not have a purely recursive stack.
        """
        msg = 'A variable allocated on the stack'
        # if n == 5:
        #     print 'b',
        if (n % 2) == 0:
            self.main_gt.switch()
        if n > 0:
            return self.function_a(n - 1)
        else:
            return msg


def main():
    threads = set()
    for i in range(42):
        t = HubThread()
        t.daemon = True
        threads.add(t)
    for t in threads:
        t.start()
    while True:
        time.sleep(100)


if __name__ == '__main__':
    try:
        main()
    except KeyboardInterrupt:
        print
        print '%s running threads' % len(threading.enumerate())
        print 'the end'