[Mrtrix-discussion] mrview segmentation fault

[Donald Tournier]

Hi Kerstin,

This is really strange. Can you open the csd.mif file as a regular
image (i.e. using the File->Open dialog)? If you can, then there is
probably something else going on. Someone else had a very similar
issue when running MRtrix within a virtual PC (i.e. an emulator),
which I guess was related to the poor graphics card support and/or the
limited memory available. In any case, it sounded more like a
limitation of the system rather than the software itself. Things might
be different in your case though, since you are able to display some,
but not all your csd.mif files...

Here's a couple of things you can do to try to narrow down the problem:

1. run mrview from the command line with the -debug option, and repeat
the steps taken to get it to crash. Then copy/paste and send me the
command-line output.

2. run mrview within the debugger:
$ gdb mrview
followed by "run" at the gdb prompt"
(gdb) run

then load your csd.mif file to get mrview to crash, at which point the
debugger will print out a message about the error. You can send me a
full diagnostic by typing "bt full" at the prompt and copy/pasting the
output:
(gdb) bt full

If you have the time, BEFORE doing the steps above, you could
recompile a debugging version of MRtrix. This will make the diagnostic
information produced by "bt full" much more comprehensive. To do this,
use these commands (from the MRtrix installation folder):
$ ./build clean
$ ./build -debug
And proceed as per the installation instructions.

Thanks!

Donald.


On Mon, Dec 1, 2008 at 11:23 AM, Kerstin Pannek <k.pannek1 at uq.edu.au> wrote:
> Hi!
> I have a problem looking at the orientation plots of several datasets.
> mrview crashes on opening csd.mif (view->sidebar->orientation
> plot->browse->open --- segmentation fault). This happens only for a few
> datasets. All datasets are processed the same way. Deleting the file and
> rerunning csdeconv doesn't solve the problem. Any ideas?
> Thanks
> Kerstin
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-- 
Jacques-Donald Tournier (PhD)
Brain Research Institute, Melbourne, Australia
Tel: +61 (0)3 9496 4078