Error during GC: how can I find out more?

Error during GC: how can I find out more?

[Gregory Marton]

Hi folks,

We are working with dbi postgres and suspect that we may have made a 
mistake while modifying it that causes guile occasionally to die with
    Guile: error during GC.
from what looks like line 88 of error.c here:
    http://guile-1.8.sourcearchive.com/documentation/1.8.5plus-p1/error_8c-source.html

Is it possible to invoke garbage collection from within Scheme so we can 
more easily write a test case to isolate the problem?

Are there other ways in which we might get more hints as to the nature of 
the error, or the nature of the data structures it was trying to collect at 
the time?

Thanks,
Grem

-- 
------ __@   Gregory A. Marton                 http://csail.mit.edu/~gremio
--- _`\<,_                                                     617-775-3005
-- (*)/ (*)            Make friends with freedom and uncertainty.
~~~~~~~~~~~~~~~~-~~~~~~~~_~~~_~~~~~v~~~~^^^^~~~~~--~~~~~~~~~~~~~~~++~~~~~~~

Re: Error during GC: how can I find out more?

[dsmich]

---- Gregory Marton <gremio@csail.mit.edu> wrote: 
> Hi folks,
> 
> We are working with dbi postgres and suspect that we may have made a 
> mistake while modifying it that causes guile occasionally to die with
>     Guile: error during GC.

> Is it possible to invoke garbage collection from within Scheme so we can 
> more easily write a test case to isolate the problem?

Sure.  Just call (gc) whereever you want.

-Dale

Re: Error during GC: how can I find out more?

[Ludovic Courtès]

Hello,

Gregory Marton <gremio@csail.mit.edu> writes:

> Are there other ways in which we might get more hints as to the nature
> of the error, or the nature of the data structures it was trying to
> collect at the time?

You could get a backtrace from GDB, that will show you the call site of
`scm_error ()'.

Hope this helps,
Ludo'.