Re: Emacs hangs on X11 paste--how to diagnose?

[Tom Tromey]

>> If it persists then file a bug-report about it.

GM> s/file a bug report/check for bug reports/

GM> http://debbugs.gnu.org/16737   and several friends.

GM> I don't know what is needed to make progress fixing it,
GM> but it's obviously a problem.

See comment #76.
It's been a while since I looked at this but it seemed to be an issue
with the events arriving "too late" -- either some bug in the SIGIO code
or a missing call to gobble_input.

Tom