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[tmodes <1362170@xxxxxxxxxxxxxxxxxx>]

** Changed in: hugin
    Milestone: None => 2016.0beta1

** Changed in: hugin
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1362170

Title:
  nona GPU for remapping : seg fault

Status in Hugin:
  Fix Released

Bug description:
  If i activate the  GPU for remapping, it's always crash :

  
  ===========================================================================
  ***************  Panorama makefile generated by Hugin       ***************
  ===========================================================================
  System information
  ===========================================================================
  Operating system: GNU/Linux
  Release: 3.14.14-gentoo
  Kernel version: #1 SMP Thu Aug 14 21:23:51 CEST 2014
  Machine: x86_64
  Disc usage
  Sys. de fichiers Taille Utilisé Dispo Uti% Monté sur
  /dev/sda2           23G     19G  3,1G  86% /
  devtmpfs           3,9G       0  3,9G   0% /dev
  tmpfs              3,9G    320K  3,9G   1% /dev/shm
  tmpfs              3,9G    1,1M  3,9G   1% /run
  tmpfs              3,9G       0  3,9G   0% /sys/fs/cgroup
  tmpfs              3,9G    2,1M  3,9G   1% /tmp
  /dev/sda3          212G    173G   28G  87% /home
  /dev/sdb2          816G    677G   98G  88% /Backup
  /dev/sdc2          241G    136G   93G  60% /home/roumano/Musique
  /dev/sdc3          1,3T    1,2T   17G  99% /home/roumano/Vidéos
  tmpfs              796M     52K  796M   1% /run/user/500
  Memory usage
               total       used       free     shared    buffers     cached
  Mem:          7956       5647       2308         28        117        820
  -/+ buffers/cache:       4710       3245
  Swap:         3906       1775       2130
  ===========================================================================
  Output options
  ===========================================================================
  Hugin Version: 2014.0.0.51ff237f209e
  Project file: /tmp/huginpto_L9TZUg
  Output prefix: test
  Projection: Cylindrical (1)
  Field of view: 124 x 57
  Canvas dimensions: 6491 x 3246
  Crop area: (235,872) - (6306,3122)
  Output exposure value: 13.82
  Output stacks minimum overlap: 0.700
  Output layers maximum Ev difference: 0.50
  Selected outputs
  Normal panorama
  * Blended panorama
  Using GPU for remapping
  ===========================================================================
  Input images
  ===========================================================================
  Number of images in project file: 3
  Number of active images: 3
  Image 0: /home/roumano/raw/pano/2014-08-06--17.48.49.CR2.tif
  Image 0: Size 5196x3462, Exposure: 13.95
  Image 1: /home/roumano/raw/pano/2014-08-06--17.48.51.CR2.tif
  Image 1: Size 5196x3462, Exposure: 13.80
  Image 2: /home/roumano/raw/pano/2014-08-06--17.48.53.CR2.tif
  Image 2: Size 5196x3462, Exposure: 13.72
  ===========================================================================
  Testing programs
  ===========================================================================
  Checking nona...[OK]
  Checking enblend...[OK]
  Checking enfuse...[OK]
  Checking hugin_hdrmerge...[OK]
  Checking exiftool...[OK]
  ===========================================================================
  Stitching panorama
  ===========================================================================
  nona -g  -z LZW -r ldr -m TIFF_m -o test -i 0 /tmp/huginpto_L9TZUg
  nona: using graphics card: ATI Technologies Inc. AMD Radeon HD 7900 Series  
  make: *** [test0000.tif] Erreur de segmentation
  make: *** Suppression du fichier « test0000.tif »

  
  My card it's a ATI 7950 ( lspci : AMD/ATI] Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280] )
  Driver used : ati-drivers-14.6_beta1
  on another exemple, OpenCL on my computer is working great (much faster than via the pcu ) via darktable
  Debug information from darktable :  ( if it's can help ) 
  [opencl_init] device 0 `Tahiti' supports image sizes of 16384 x 16384
  [opencl_init] device 0 `Tahiti' allows GPU memory allocations of up to 1024MB
  [opencl_init] device 0: Tahiti 
       GLOBAL_MEM_SIZE:          2392MB
       MAX_WORK_GROUP_SIZE:      256
       MAX_WORK_ITEM_DIMENSIONS: 3
       MAX_WORK_ITEM_SIZES:      [ 256 256 256 ]
       DRIVER_VERSION:           1526.3 (VM)
       DEVICE_VERSION:           OpenCL 1.2 AMD-APP (1526.3)

  Don't known how to provide more information :
  - I have recompiled higin with debug information (no more information in the GUI)
  - don't known how to test nona from the commande line

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