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Since changeset b99c54acb22d, the ARM Ubuntu buildbot has been hanging in test_ssl:
 http://www.python.org/dev/buildbot/all/builders/ARM%20Ubuntu%203.x/builds/250/steps/test/logs/stdio
I've been able to reproduce this behaviour on my AMD64 Ubuntu 11.10 machine.
The last output before it hangs is:
 test_protocol_sslv3 (test.test_ssl.ThreadedTests)
 Connecting to an SSLv3 server with various client options ... 
 SSLv3->SSLv3 CERT_NONE
 SSLv3->SSLv3 CERT_OPTIONAL
 SSLv3->SSLv3 CERT_REQUIRED
 {SSLv23->SSLv3} CERT_NONE
No such problem has shown up on the x86 Ubuntu Shared builder. This is probably
because it runs Ubuntu 8.04, whereas the ARM bot runs 11.10.

The ARM Ubuntu 3.2 buildbot is having the same problem:
 http://www.python.org/dev/buildbot/all/builders/ARM%20Ubuntu%203.2/builds/158/steps/test/logs/stdio
The 2.7 bot is fine, though.

Can you try the following patch?

With the patch applied on 3.2 (it doesn't apply on default), the test passes,
but it also prints out this exception traceback:
 test_protocol_sslv3 (test.test_ssl.ThreadedTests)
 Connecting to an SSLv3 server with various client options ... 
 SSLv3->SSLv3 CERT_NONE
 SSLv3->SSLv3 CERT_OPTIONAL
 SSLv3->SSLv3 CERT_REQUIRED
 {SSLv23->SSLv3} CERT_NONE
 Exception in thread Thread-8:
 Traceback (most recent call last):
 File "/home/nadeem/src/cpython/3.2/Lib/threading.py", line 741, in _bootstrap_inner
 self.run()
 File "/home/nadeem/src/cpython/3.2/Lib/test/test_ssl.py", line 810, in run
 if not self.wrap_conn():
 File "/home/nadeem/src/cpython/3.2/Lib/test/test_ssl.py", line 764, in wrap_conn
 self.sock, server_side=True)
 File "/home/nadeem/src/cpython/3.2/Lib/ssl.py", line 189, in wrap_socket
 _context=self)
 File "/home/nadeem/src/cpython/3.2/Lib/ssl.py", line 276, in __init__
 raise x
 File "/home/nadeem/src/cpython/3.2/Lib/ssl.py", line 272, in __init__
 self.do_handshake()
 File "/home/nadeem/src/cpython/3.2/Lib/ssl.py", line 451, in do_handshake
 self._sslobj.do_handshake()
 socket.error: [Errno 104] Connection reset by peer
 {TLSv1->SSLv3} CERT_NONE
 SSLv23->SSLv3 CERT_NONE
 ok
I'm assuming it's unrelated, though - I get the same traceback on earlier
revisions (before the test started hanging). Should I file a separate bug?

> I'm assuming it's unrelated, though - I get the same traceback on earlier
> revisions (before the test started hanging). Should I file a separate bug?
Yes, please.

New changeset 10c79f29e417 by Antoine Pitrou in branch '3.2':
Issue #13895: fix test_ssl hanging under Ubuntu
http://hg.python.org/cpython/rev/10c79f29e417
New changeset db0c717cbc01 by Antoine Pitrou in branch 'default':
Issue #13895: fix test_ssl hanging under Ubuntu
http://hg.python.org/cpython/rev/db0c717cbc01 

Hopefully it's fixed now, thank you.