This all seems to be a side-effect of r30942 -- see:
On Mar 12, 2014, at 5:13 AM, <tmishima_at_[hidden]> wrote:
> Hi Ralph,
> I installed openmpi-1.7.5rc2 and applied r31019 to it.
> As far as I confirmed, rmaps framework worked fine.
> However, by chance, I noticed that single ctrl+c typing could
> not terminate a running job. Twice typing was necessary.
> Is this your expected behavior?
> I didn't use ctrl+c to abort for a while, I don't know when
> it started. At least I can terminate the job by single ctrl+c
> if I use openmpi-1.7.4.
> And, for your information, when I hit ctrl+c with more than 5
> seconds interval, I get the message below:
> Abort is in progress...hit ctrl-c again within 5 seconds to forcibly
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