[Openmcl-devel] #407 : reiterating interest in ccl on ec2

Gary Byers gb at clozure.com
Mon Mar 1 09:46:28 PST 2010

The person who reported the bug originally opened a report in Amazon's
bug tracking system; I've seen the report but can't find the URL at the

The little C test program demonstrates that a program that executes an
'int $0xc5' instruction while running on EC2 hangs without invoking a
handler for the signal that that instruction is expected to generate.

It might be interesting to someone that aynchronous signals sent to
some thread in the process cause a handler to be invoked or that 'int
$n' instructions for other values of n cause synchronous signals to be
raised, but that isn't really the issue here, is it ?

On Mon, 1 Mar 2010, R. Matthew Emerson wrote:

> On Mar 1, 2010, at 9:21 AM, james anderson wrote:
>> good morning;
>> i have re-opened #407 in the hope to progress towards running ccl on
>> ec2.
>> i added a note to the report, with my observations when i tried the
>> sample code.
>> if one can suggest further tests, please advise.
> Shouldn't you be taking this up with Amazon?  It's their bug.
> Reopening http://trac.clozure.com/ccl/ticket/407 implies that you think there is something the ccl maintainers can or should do;  it's not clear to me what that something might be.
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