[GRASS-dev] DBMI troubles on Win32

I have tried a GRASS vector map linked to a DFB table.
My test data set also is very small and simple.
I keep running v.info -c on it and after about 10-15 runs it
usually freezes and I have to CTRL+C it.

I will do some more testing using breakpoints to see which
one of the dbmilib functions is causing this.

Strange ...

On Fri, March 9, 2007 09:18, Benjamin Ducke wrote:

Hi all,

I am currently doing a lot of testing for GRASS 6.3. on the mingw/msys

platform (the same that comes with QGIS).

There seems to be a problem related to the DBMI protocol. Modules that

access attribute data via the GRASS DBMI lib have a habit of hanging
once in a while. I have seen this happen on half a dozen different
machines with Win2000 and XP.

An example is v.info -c. The module simply hangs and has to be killed

and restarted until it does its work.

The strange thing is that I cannot find any pattern here: sometimes

dozens of runs show no problems at all and sometimes I have to restart
a module several times until it starts running.

Also, this seems to concern only the first DB access. I have a module

here that does hundreds of DB accesses during each run. If the first
one goes OK, all the others will be fine too ...

I am using the latest 6.3 CVS sources for my tests.

I am at a loss here. Can anyone confirm this problem?

I can't with the native winGRASS (not QGIS), at least not using v.info

-c as a test case within spearfish. But there tables are very small.
Which type of files did you try this on ?

Moritz