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https://github.com/nodejs/node-v0.x-archive.git
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30e5366b29
Starting the debugger directly in the SIGUSR1 signal handler results in a malloc lock contention ~1% of the time. It hangs the test, which is annoying on a daily basis to all of us, but it also is pretty terrible if you actually want to debug a node process that has gone sideways. Credit to @bnoordhuis for most of this. I just added the unref which keeps it from messing up the event loop for other stuff.
Evented I/O for V8 javascript. 
To build:
Prerequisites (Unix only):
* Python 2.6 or 2.7
* GNU Make 3.81 or newer
* libexecinfo (FreeBSD and OpenBSD only)
Unix/Macintosh:
./configure
make
make install
If your python binary is in a non-standard location or has a non-standard name, run the following instead:
export PYTHON=/path/to/python
$PYTHON ./configure
make
make install
Windows:
vcbuild.bat
To run the tests:
Unix/Macintosh:
make test
Windows:
vcbuild.bat test
To build the documentation:
make doc
To read the documentation:
man doc/node.1