ERROR: thread attach failed

What does "ERROR: thread attach failed" mean?
http://groups.google.com/group/android-developers/browse_thread/thread/addd2a507ea8b166

If you're starting your app from the command line, with the "am"
command, then you're seeing a race condition in "am".  In short, one
part of the command is trying to create a bunch of threads while the
main part is shutting down, so the VM rejects the attempt to attach a
new thread.  (The message comes from javaAttachThread() in frameworks/
base/core/jni/AndroidRuntime.cpp.)
The message has been toned down a bit for a future release.
So you can ignore it!