digikam 5.1.0 start-up hanging on OSX

Dirk Großkopf dirkg68 at web.de
Sun Aug 21 16:28:25 BST 2016


Hi Gilles

I tried to follow your suggestion to catch any exception in lldb, but failed. Anyway I was able to capture more details in the thread dump from the kill report:


Heaviest stack for the main thread of the target process:
  11  start + 1 (libdyld.dylib + 13741) [0x7fff9c74a5ad]
  11  main + 7343 (digikam + 72575) [0x10446db7f]
  11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 712625) [0x104526fb1]
  11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3377338) [0x1047b18ba]
  11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3379145) [0x1047b1fc9]
  11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3383314) [0x1047b3012]
  11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3378248) [0x1047b1c48]
  11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3497949) [0x1047cefdd]
  11  ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2267030) [0x10b2ce796]
  4   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3118263) [0x1047724b7]
  4   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3055469) [0x104762f6d]
  4   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1701696) [0x10b244740]
  4   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2885774) [0x10b36588e]
  4   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2267030) [0x10b2ce796]
  4   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1858819) [0x10b26ad03]
  4   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1825542) [0x10b262b06]
  4   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1822902) [0x10b2620b6]
  4   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1701696) [0x10b244740]
  4   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2885774) [0x10b36588e]
  4   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2267030) [0x10b2ce796]
  4   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3254947) [0x104793aa3]
  4   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3251765) [0x104792e35]
  4   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3251306) [0x104792c6a]
  4   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3251613) [0x104792d9d]
  4   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3059109) [0x104763da5]
  4   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3058913) [0x104763ce1]
  4   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2885277) [0x10b36569d]
  4   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2267030) [0x10b2ce796]
  4   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4759519) [0x1054b3fdf]
  2   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4048020) [0x105406494]
  2   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4049608) [0x105406ac8]
  1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 110432) [0x105044f60]
  1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 110757) [0x1050450a5]
  1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 73605) [0x10503bf85]
  1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 73660) [0x10503bfbc] (running)


Process:         digikam [752]
Path:            /opt/digikam/*/digikam.app/Contents/MacOS/digikam
Architecture:    x86_64
Parent:          launchd [1]
UID:             501
Task size:       57625 pages (+48)
CPU Time:        0.974s
Note:            Unresponsive for 45 seconds before sampling

  Thread 0xbced           DispatchQueue 1         11 samples (1-11)       priority 46 (base 46)   cpu time 0.974s
  <thread QoS user interactive (requested user interactive), process unclamped, process received importance donation from WindowServer [262], IO policy important>
  11  start + 1 (libdyld.dylib + 13741) [0x7fff9c74a5ad] 1-11
    11  main + 7343 (digikam + 72575) [0x10446db7f] 1-11
      11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 712625) [0x104526fb1] 1-11
        11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3377338) [0x1047b18ba] 1-11
          11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3379145) [0x1047b1fc9] 1-11
            11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3383314) [0x1047b3012] 1-11
              11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3378248) [0x1047b1c48] 1-11
                11  ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3497949) [0x1047cefdd] 1-11
                  11  ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2267030) [0x10b2ce796] 1-11
                    1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3127715) [0x1047749a3] 1
                      1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3047053) [0x104760e8d] 1
                        1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3045541) [0x1047608a5] 1
                          1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3416825) [0x1047bb2f9] 1
                            1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3436067) [0x1047bfe23] 1
                              1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3485898) [0x1047cc0ca] 1
                                1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 573237) [0x10b130f35] 1
                                  1   malloc + 42 (libsystem_malloc.dylib + 4300) [0x7fff942780cc] 1
                                    1   malloc_zone_malloc + 71 (libsystem_malloc.dylib + 9633) [0x7fff942795a1] 1
                                      1   szone_malloc_should_clear + 292 (libsystem_malloc.dylib + 9989) [0x7fff94279705] 1
                                        1   tiny_malloc_from_free_list + 484 (libsystem_malloc.dylib + 14496) [0x7fff9427a8a0] (running) 1
                    3   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3118263) [0x1047724b7] 2-4
                      3   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3055469) [0x104762f6d] 2-4
                        3   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1701696) [0x10b244740] 2-4
                          3   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2885774) [0x10b36588e] 2-4
                            3   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2267030) [0x10b2ce796] 2-4
                              3   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1858819) [0x10b26ad03] 2-4
                                3   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1825542) [0x10b262b06] 2-4
                                  3   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1822902) [0x10b2620b6] 2-4
                                    3   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1701696) [0x10b244740] 2-4
                                      3   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2885774) [0x10b36588e] 2-4
                                        3   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2267030) [0x10b2ce796] 2-4
                                          3   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3254947) [0x104793aa3] 2-4
                                            3   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3251765) [0x104792e35] 2-4
                                              3   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3251306) [0x104792c6a] 2-4
                                                3   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3251613) [0x104792d9d] 2-4
                                                  3   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3059109) [0x104763da5] 2-4
                                                    3   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3058913) [0x104763ce1] 2-4
                                                      3   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2885277) [0x10b36569d] 2-4
                                                        3   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2267030) [0x10b2ce796] 2-4
                                                          3   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4759519) [0x1054b3fdf] 2-4
                                                            1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4048088) [0x1054064d8] 2
                                                              1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4049741) [0x105406b4d] 2
                                                                1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 866146) [0x10b178762] 2
                                                                  1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 574136) [0x10b1312b8] 2
                                                                    1   szone_free_definite_size + 1278 (libsystem_malloc.dylib + 18556) [0x7fff9427b87c] (running) 2
                                                            1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4048020) [0x105406494] 3
                                                              1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4049608) [0x105406ac8] 3
                                                                1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 110432) [0x105044f60] 3
                                                                  1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 110757) [0x1050450a5] 3
                                                                    1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 73605) [0x10503bf85] 3
                                                                      1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 73660) [0x10503bfbc] (running) 3
                                                            1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4048088) [0x1054064d8] 4
                                                              1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4049741) [0x105406b4d] 4
                                                                1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 574049) [0x10b131261] (running) 4
                    2   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3515607) [0x1047d34d7] 5-6
                      2   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3279009) [0x1047998a1] 5-6
                        2   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1526803) [0x10b219c13] 5-6
                          2   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1525824) [0x10b219840] 5-6
                            1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2829674) [0x10b357d6a] 5
                              1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2831526) [0x10b3584a6] 5
                                1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1174316) [0x10b1c3b2c] 5
                                  1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1168399) [0x10b1c240f] 5
                                    1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1170734) [0x10b1c2d2e] 5
                                      1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1636133) [0x10b234725] 5
                                        1   readdir_r$INODE64 + 67 (libsystem_c.dylib + 184594) [0x7fffa041d112] 5
                                          1   __getdirentries64 + 10 (libsystem_kernel.dylib + 91882) [0x7fff97c446ea] 5
                                           *1   hndl_unix_scall64 + 22 (kernel + 2018662) [0xffffff80003ecd66] 5
                                             *1   unix_syscall64 + 593 (kernel + 6457089) [0xffffff8000828701] 5
                                               *1   getdirentries64 + 55 (kernel + 3189799) [0xffffff800050ac27] 5
                                                 *1   ??? (kernel + 3236700) [0xffffff800051635c] 5
                                                   *1   vnode_readdir64 + 130 (kernel + 3188690) [0xffffff800050a7d2] 5
                                                     *1   hfs_vnop_readdir + 1333 (kernel + 5482837) [0xffffff800073a955] 5
                                                       *1   cat_getdirentries + 1111 (kernel + 5221063) [0xffffff80006faac7] 5
                                                         *1   BTIterateRecords + 1768 (kernel + 5525160) [0xffffff8000744ea8] 5
                                                           *1   GetBTreeBlock + 198 (kernel + 5192198) [0xffffff80006f3a06] 5
                                                             *1   buf_biowait + 124 (kernel + 3019132) [0xffffff80004e117c] 5
                                                               *1   ??? (kernel + 5988643) [0xffffff80007b6123] 5
                                                                 *1   lck_mtx_sleep + 132 (kernel + 946676) [0xffffff80002e71f4] 5
                                                                   *1   thread_block_reason + 175 (kernel + 986671) [0xffffff80002f0e2f] 5
                                                                     *1   ??? (kernel + 1000220) [0xffffff80002f431c] 5
                                                                       *1   machine_switch_context + 316 (kernel + 1875900) [0xffffff80003c9fbc] 5
                            1   stat$INODE64 + 10 (libsystem_kernel.dylib + 100178) [0x7fff97c46752] 6
                             *1   hndl_unix_scall64 + 22 (kernel + 2018662) [0xffffff80003ecd66] 6
                               *1   unix_syscall64 + 593 (kernel + 6457089) [0xffffff8000828701] 6
                                 *1   stat64 + 58 (kernel + 3180650) [0xffffff800050886a] 6
                                   *1   ??? (kernel + 3224759) [0xffffff80005134b7] 6
                                     *1   nameiat + 133 (kernel + 3169733) [0xffffff8000505dc5] 6
                                       *1   namei + 2200 (kernel + 3090504) [0xffffff80004f2848] 6
                                         *1   lookup + 910 (kernel + 3092638) [0xffffff80004f309e] 6
                                           *1   hfs_vnop_lookup + 1517 (kernel + 5306925) [0xffffff800070fa2d] 6
                                             *1   cat_lookup + 229 (kernel + 5200453) [0xffffff80006f5a45] 6
                                               *1   bcopy + 22 (kernel + 18446744073708560534) [0xffffff800010e096] (running) 6
                    2   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3127715) [0x1047749a3] 7-8
                      2   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3047053) [0x104760e8d] 7-8
                        2   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3045541) [0x1047608a5] 7-8
                          1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3416866) [0x1047bb322] 7
                            1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3342375) [0x1047a9027] 7
                              1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3329312) [0x1047a5d20] (running) 7
                          1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3416803) [0x1047bb2e3] 8
                            1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3330608) [0x1047a6230] 8
                              1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 73341) [0x10448ae7d] 8
                                1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 76946) [0x10448bc92] 8
                                  1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 77058) [0x10448bd02] 8
                                    1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 77105) [0x10448bd31] 8
                                      1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 77326) [0x10448be0e] (running) 8
                    1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3515607) [0x1047d34d7] 9
                      1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3278948) [0x104799864] 9
                        1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 181987) [0x1044a56e3] 9
                          1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 862149) [0x10b1777c5] 9
                            1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 803064) [0x10b1690f8] 9
                              1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 777645) [0x10b162dad] (running) 9
                    1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3118263) [0x1047724b7] 10
                      1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3055469) [0x104762f6d] 10
                        1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1701696) [0x10b244740] 10
                          1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2885774) [0x10b36588e] 10
                            1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2267030) [0x10b2ce796] 10
                              1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1858819) [0x10b26ad03] 10
                                1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1825542) [0x10b262b06] 10
                                  1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1822902) [0x10b2620b6] 10
                                    1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1701696) [0x10b244740] 10
                                      1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2885774) [0x10b36588e] 10
                                        1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2267030) [0x10b2ce796] 10
                                          1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3254947) [0x104793aa3] 10
                                            1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3251765) [0x104792e35] 10
                                              1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3251306) [0x104792c6a] 10
                                                1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3251613) [0x104792d9d] 10
                                                  1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3059109) [0x104763da5] 10
                                                    1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3058913) [0x104763ce1] 10
                                                      1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2885277) [0x10b36569d] 10
                                                        1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2267030) [0x10b2ce796] 10
                                                          1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4759519) [0x1054b3fdf] 10
                                                            1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4048020) [0x105406494] 10
                                                              1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 4049608) [0x105406ac8] 10
                                                                1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 110587) [0x105044ffb] 10
                                                                  1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 111332) [0x1050452e4] 10
                                                                    1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 76349) [0x10503ca3d] 10
                                                                      1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 76466) [0x10503cab2] 10
                                                                        1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 76521) [0x10503cae9] 10
                                                                          1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 73605) [0x10503bf85] 10
                                                                            1   ??? (<AF1B03E4-C08D-3649-9482-E742EEDB523B> + 73721) [0x10503bff9] (running) 10
                    1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3515607) [0x1047d34d7] 11
                      1   ??? (<44130343-5D3B-3BC4-B853-00AE122DA68D> + 3279009) [0x1047998a1] 11
                        1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1526803) [0x10b219c13] 11
                          1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1525824) [0x10b219840] 11
                            1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2829674) [0x10b357d6a] 11
                              1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 2831526) [0x10b3584a6] 11
                                1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1174316) [0x10b1c3b2c] 11
                                  1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1168399) [0x10b1c240f] 11
                                    1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1170734) [0x10b1c2d2e] 11
                                      1   ??? (<92CAC82F-5CA4-35B1-A4BF-78268E053E4B> + 1636133) [0x10b234725] 11
                                        1   readdir_r$INODE64 + 67 (libsystem_c.dylib + 184594) [0x7fffa041d112] 11
                                          1   __getdirentries64 + 10 (libsystem_kernel.dylib + 91882) [0x7fff97c446ea] 11
                                           *1   hndl_unix_scall64 + 22 (kernel + 2018662) [0xffffff80003ecd66] 11
                                             *1   unix_syscall64 + 593 (kernel + 6457089) [0xffffff8000828701] 11
                                               *1   getdirentries64 + 55 (kernel + 3189799) [0xffffff800050ac27] 11
                                                 *1   ??? (kernel + 3236700) [0xffffff800051635c] 11
                                                   *1   vnode_readdir64 + 130 (kernel + 3188690) [0xffffff800050a7d2] 11
                                                     *1   hfs_vnop_readdir + 1333 (kernel + 5482837) [0xffffff800073a955] 11
                                                       *1   cat_getdirentries + 1111 (kernel + 5221063) [0xffffff80006faac7] 11
                                                         *1   BTIterateRecords + 1768 (kernel + 5525160) [0xffffff8000744ea8] 11
                                                           *1   GetBTreeBlock + 198 (kernel + 5192198) [0xffffff80006f3a06] 11
                                                             *1   buf_biowait + 124 (kernel + 3019132) [0xffffff80004e117c] 11
                                                               *1   ??? (kernel + 5988643) [0xffffff80007b6123] 11
                                                                 *1   lck_mtx_sleep + 132 (kernel + 946676) [0xffffff80002e71f4] 11
                                                                   *1   thread_block_reason + 175 (kernel + 986671) [0xffffff80002f0e2f] 11
                                                                     *1   ??? (kernel + 1000220) [0xffffff80002f431c] 11
                                                                       *1   machine_switch_context + 316 (kernel + 1875900) [0xffffff80003c9fbc] 11

Do you see any obvious? 
Anyway I will try to follow your README file and build digikam from the sources next week and try to debug it since I have some 20+ years knowledge in software development, but didn’t used C++ for eons ;-)

Best Regards Dirk 

> Am 20.08.2016 um 22:19 schrieb Gilles Caulier <caulier.gilles at gmail.com>:
> 
> if you catch C++ exception before to run digiKam in lldb (as under gdb), it's not better to see where application hand ?
> 
> Gilles Caulier
> 
> 
> 
> 2016-08-20 21:45 GMT+02:00 Dirk Großkopf <dirkg68 at web.de <mailto:dirkg68 at web.de>>:
> I know
> I was looking for some log files but didn’t found anythings
> well Using the OS/X debugger does not provide any suitable, because the app launcher simply launches another process and exists doesn’t it.
> 
> Here’s the console output
> mac-mini:~ dirkg$ lldb /opt/digikam/Applications/digiKam/digikam.app/Contents/MacOS/applet 
> (lldb) target create "/opt/digikam/Applications/digiKam/digikam.app/Contents/MacOS/applet"
> Current executable set to '/opt/digikam/Applications/digiKam/digikam.app/Contents/MacOS/applet' (x86_64).
> (lldb) run
> Process 669 launched: '/opt/digikam/Applications/digiKam/digikam.app/Contents/MacOS/applet' (x86_64)
> Process 669 exited with status = 0 (0x00000000) 
> 
> to be more precise:
> digiKam scans the defined/configured picture folder on startup and creates the database
> Then the boot logo occurs and then stalls at step 3: Reading the database and waits forever
> 
> BTW: there is no executable digicam in /opt/digikam/Applications/digiKam/digikam.app/Contents/MacOS/
> 
> Regards Dirk
>> Am 20.08.2016 um 21:06 schrieb Gilles Caulier <caulier.gilles at gmail.com <mailto:caulier.gilles at gmail.com>>:
>> 
>> Well these information are not very suitable.
>> 
>> What do you see as debug traces when you start digiKam from a terminal ? Look here for more details :
>> 
>> https://www.digikam.org/contrib <https://www.digikam.org/contrib>
>> 
>> Gilles Caulier
>> 
>> 2016-08-20 16:10 GMT+02:00 Dirk Großkopf <dirkg68 at web.de <mailto:dirkg68 at web.de>>:
>> I'm experiencing the same issue on a fresh 5.1.0 install on OS/X 10.11.6
>> 
>> First the collection is created by walking through the users Picture folder and then the digiKam boot screen/logo is displayed.
>> 
>> OS/X complains that the process hangs and after killing the process the following report header is created:
>> Date/Time:       2016-08-20 16:02:00 +0200
>> OS Version:      Mac OS X 10.11.6 (Build 15G31)
>> Architecture:    x86_64
>> Report Version:  22
>> 
>> Command:         digikam
>> Path:            /opt/digikam/*/digikam.app/Contents/MacOS/digikam
>> Version:         5.1.0 (5.1.0)
>> Parent:          launchd [1]
>> PID:             713
>> 
>> Event:           hang
>> Duration:        1.10s (process was unresponsive for 98 seconds before sampling)
>> Steps:           11 (100ms sampling interval)
>> 
>> Regards Dirk
>> 
> 
> 

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