[issue10923] Python 2.7 hangs on Unicode+threading
Piotr Maślanka
report at bugs.python.org
Mon Jan 17 04:07:45 CET 2011
Piotr Maślanka <piotr.maslanka at henrietta.com.pl> added the comment:
I runned it over again with code:
print 'Acquiring lock'
self.loglock.acquire()
print 'Attempting to convert'
if type(text) == unicode: text = text.encode('utf8', errors='strict')
print 'Opening '+threadspecific
with open(threadspecific, 'ab') as x: x.write(text+'\r\n')
print 'Closing '+threadspecific
self.loglock.release()
print 'Releasing lock'
It behaves erratically, sometimes working and yielding:
Acquiring lock
Acquiring lock
Attempting to convert
Opening threadspecific_master
Closing threadspecific_master
Releasing lock
Attempting to convert
Opening threadspecific_slave
Closing threadspecific_slave
Releasing lock
And sometimes hanging with:
Acquiring lock
Attempting to convert
Acquiring lock
Looks like a particularly nasty race condition. It gives off no exceptions. Platform is Windows 7 x64, running with admin privileges.
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type: -> crash
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<http://bugs.python.org/issue10923>
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