Amaury Forgeot d'Arc <[EMAIL PROTECTED]> added the comment:
I could reproduce the problem, and it appears that it is the same as
#1608818, corrected by r65037:
on posix platforms, listdir() used to check for errno only at the end of
the list; the problem is that the trace function creates a thread, and
this sets errno (harmlessly) somewhere when playing with locks.
In the python codebase, every function that checks errno should set it
to zero before the system call.
The above fix could be backported.
As a workaround, I suggest to put a line like
int('0')
near the end of the trace funtion (at least after the creation of the
thread) because it has the nice side-effect to reset errno.
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Python tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue3494>
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