"malloc double free" on creating many communicators

joshmoore

We are trying to debug a "too many files" issue that we're having related to too many communicator's open in a single django process. While testing we ran into this:

6859
6860
6861
6862
6863
6864
6865
6866
Python(24600,0xa000d000) malloc: *** error for object 0x845e5890: double free
Python(24600,0xa000d000) malloc: *** set a breakpoint in szone_error to debug
Traceback (most recent call last):
  File "oa.py", line 6, in <module>
    ic = Ice.initialize()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/Ice.py", line 368, in initialize
    communicator = IcePy.Communicator(args, data)
Ice.UnknownException: exception ::Ice::UnknownException
{
    unknown = Thread.cpp:445: IceUtil::ThreadSyscallException:
syscall exception: Resource temporarily unavailable
}

# oa.py
import Ice
oas = []
for i in range(10000):
    print i
    ic = Ice.initialize()
    #oa = ic.createObjectAdapterWithEndpoints("A%s"%i,"tcp -p %s" % (10000+i))
    #oa.activate()
    #oas.append(oa)
    #oa.deactivate()
    #ic.destroy()

which may or may not be of interest.

Python: 2.5.4
Mac OSX: 10.4
Ice: 3.3.0

Best wishes,
~J.

mes

Thanks, we'll take a look at that.

Regards,
Mark