bug#11350: Nasty hangup

[Antoine Levitt <antoine.levitt@gmail.com>]

Hi,

I'm seeing a very nasty bug, description below. I use bzr trunk and
update it quite regularly, but the last commits seem pretty harmless
... the only change I can see in my environment is that I started using
org-clock today. The bugs happened when I was working, using python with
a comint interaction buffer.

So anyway, when it happens, I get 100% CPU usage, and emacs just
hangs. I can only get out of it by sending it a SIGUSR2. In which case
it gives out a useless backtrace (saying it's at top level, as if it
wasn't doing anything). Once I quit the debugger or access a python
buffer, it hangs again. The only solution I have is to kill it.

Sorry I can't provide more information, it only happens sporadically
(three times today ...)

Antoine