2010/12/1 Marc Feeley <feeley@iro.umontreal.ca>

On 2010-11-30, at 11:59 AM, Tim Lavoie wrote:

> Greetings,
>
> I'll start off with a caveat: I'm new to Gambit and add-ons such as
> Black Hole, but have been exploring and having a good time so far.
>
> One of the modules I would like to make use of is net/http-client, so
> that I can use Gambit-C to fetch data from CouchDB. I believe I have
> everything installed OK, but I receive immediate deadlock errors when
> attempting to make a request. (Any request, URL doesn't matter.)
>
> I have appended the request, error and stack dump below; please let me
> know if I'm doing something wrong, or have stumbled onto a bug.
>
> Thanks,
> Tim

It is hard for me to analyze this problem with so little information. Deadlock problems are often hard to debug because they are caused by a combination of factors.

Is this a multithreaded program? Are you trying to contact the server from the same Scheme thread? Are the client and the server in the same OS process?

>From your backtrace it seems that the current-thread is trying to lock a mutex that is already locked (perhaps by the same thread), and no other thread is currently executable. Please check your program logic.

Marc

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