Segmentation fault in CvBoost train

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Transferred from http://code.opencv.org/issues/3193

|| antonella cascitelli on 2013-08-05 14:24
|| Priority: Normal
|| Affected: 2.4.0 - 2.4.6
|| Category: ml
|| Tracker: Bug
|| Difficulty: 
|| PR: 
|| Platform: x64 / Linux

Segmentation fault in CvBoost train

When I use train method of CvBoost with update flag equals to true, there is a segmentation fault. I'm on debian and I'm on the master branch.
Try my example (in attachment) to see this issue.
Seems that CvMat data->counts and others structures are not allocated.

History

Victor Kocheganov on 2013-08-08 06:34

Hello Antonella,

thank you for submitting the ticket. We will try to include fix into one of our next releases. But unfortunately we have limited resources at the moment and it would be great and appreciated if you can propose your own solution for this issue. (please see http://code.opencv.org/projects/opencv/wiki/How_to_contribute for detail)

Thank you in advance,
Victor

-   Target version set to 2.4.7
-   Status changed from New to Open

Maria Dimashova on 2013-08-10 04:45

Antonella, thanks for the report. I reproduced the problem, but when I was fixing it, I found that the algorithm of CvBoost updating looks strange and opened opencv/opencv#3208. Your problem will be fixed together with opencv/opencv#3208 (in 3.0 probably).

Alexander Smorkalov on 2013-11-28 06:52

-   Affected version changed from branch 'master' (2.9) to 2.4.0 - 2.4.6
-   Target version changed from 2.4.7 to 2.4.8

Alexander Smorkalov on 2013-12-30 10:38

-   Target version changed from 2.4.8 to 2.4.9

Alexander Smorkalov on 2014-04-30 19:05

-   Target version changed from 2.4.9 to 2.4.10