Parallell run of git gc hangs

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Parallell run of git gc hangs

[GoogleCodeExporter]

After some more debugging I've concluded that this is caused by a deadlock in 
python when fork is used in a threaded program, as reported in 
http://bugs.python.org/issue13817. A fix for this is integrated in 2.7.3.

So, please close this issue.

Original comment by [email protected] on 29 Nov 2012 at 3:21

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For the record:

The problem is that thread local storage is emulated in some versions of python 
and every access is guarded by a global mutex, the thread local storage is 
re-initialized right after a fork() syscall, which is done with the mutex held. 
So if any other thread holds the global mutex over the fork() call a deadlock 
will occur.

This is fixed by cleaning up the order that things are re-initialized after the 
fork() call.

So any python application calling fork while having other threads running is 
likely to hit this issue sooner or later.

For the python 2.7 series, that my machine runs, the issue is corrected in 
2.7.3.

Original comment by [email protected] on 30 Nov 2012 at 1:38