#0  0x00007fde34000078 in ?? ()
#1  0x00007fde43b3d09d in ptp_transaction_new (params=0x7fde34009ee0, ptp=0x7fde1e7fbbd0, flags=<optimized out>, sendlen=0, handler=0x7fde1e7fbb60) at ptp.c:152
  [Error: ptp.c was not found in source tree]
#2  0x00007fde43b3d2f9 in ptp_transaction (params=params@entry=0x7fde34009ee0, ptp=ptp@entry=0x7fde1e7fbbd0, flags=flags@entry=2, sendlen=sendlen@entry=0, data=data@entry=0x7fde1e7fbbc8, recvlen=recvlen@entry=0x7fde1e7fbbc4) at ptp.c:400
  [Error: ptp.c was not found in source tree]
#3  0x00007fde43b3ded4 in ptp_getstorageids (params=params@entry=0x7fde34009ee0, storageids=storageids@entry=0x7fde1e7fbc40) at ptp.c:596
  [Error: ptp.c was not found in source tree]
#4  0x00007fde43b32fe4 in LIBMTP_Get_Storage (device=device@entry=0x7fde3401d290, sortby=sortby@entry=0) at libmtp.c:3960
  [Error: libmtp.c was not found in source tree]
#5  0x0000000000405017 in add_cache_entries_for_filename (path=0x1cd3e60 "/Phone", backend=0x1cc10c0) at gvfsbackendmtp.c:208
  203:   int i;
  204: 
  205:   /* Identify Storage */
  206:   LIBMTP_devicestorage_t *storage;
  207: 
  208:   int ret = LIBMTP_Get_Storage (device, LIBMTP_STORAGE_SORTBY_NOTSORTED);
  209:   if (ret != 0) {
  210:     LIBMTP_Dump_Errorstack (device);
  211:     LIBMTP_Clear_Errorstack (device);
  212:     goto exit;
  213:   }
#6  get_cache_entry (backend=0x1cc10c0, path=path@entry=0x1cd3e60 "/Phone") at gvfsbackendmtp.c:269
  264:                                     const char *path)
  265: {
  266:   DEBUG ("(III) get_cache_entry: %s", path);
  267:   CacheEntry *entry = g_hash_table_lookup (backend->file_cache, path);
  268:   if (!entry) {
  269:     add_cache_entries_for_filename (backend, path);
  270:     entry = g_hash_table_lookup (backend->file_cache, path);
  271:   }
  272:   DEBUG ("(III) get_cache_entry done: %p", entry);
  273:   return entry;
  274: }
#7  0x0000000000408577 in do_query_info (backend=0x1cc10c0, job=0x7fde10002490, filename=0x1cd3e60 "/Phone", flags=<optimized out>, info=0x7fde04073e60, matcher=<optimized out>) at gvfsbackendmtp.c:1174
  1169:   device = G_VFS_BACKEND_MTP (backend)->device;
  1170: 
  1171:   if (ne == 2 && elements[1][0] == '\0') {
  1172:     get_device_info (G_VFS_BACKEND_MTP (backend), info);
  1173:   } else if (ne < 3) {
  1174:     CacheEntry *entry = get_cache_entry (G_VFS_BACKEND_MTP (backend),
  1175:                                          filename);
  1176:     if (!entry) {
  1177:       LIBMTP_Dump_Errorstack (device);
  1178:       LIBMTP_Clear_Errorstack (device);
  1179:       g_vfs_job_failed_literal (G_VFS_JOB (job),
#8  0x00007fde44a7f7ba in g_vfs_job_run (job=0x7fde10002490) at gvfsjob.c:197
  192:    * lifetime of the call, as it may disappear when
  193:    * we call g_vfs_job_succeed/fail()
  194:    */
  195:   g_object_ref (job);
  196:   
  197:   class->run (job);
  198:   
  199:   g_object_unref (job);
  200: }
  201: 
  202: gboolean
#9  0x00007fde44a7a1ff in job_handler_callback (data=<optimized out>, user_data=<optimized out>) at gvfsdaemon.c:200
  195: job_handler_callback (gpointer       data,
  196: 		      gpointer       user_data)
  197: {
  198:   GVfsJob *job = G_VFS_JOB (data);
  199: 
  200:   g_vfs_job_run (job);
  201:   g_object_unref (job);
  202: }
  203: 
  204: static void
  205: name_appeared_handler (GDBusConnection *connection,
#10 0x00007fde43de4aa6 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.38.0/./glib/gthreadpool.c:309
  [Error: /build/buildd/glib2.0-2.38.0/./glib/gthreadpool.c was not found in source tree]
#11 0x00007fde43de40e5 in g_thread_proxy (data=0x7fde08002f70) at /build/buildd/glib2.0-2.38.0/./glib/gthread.c:798
  [Error: /build/buildd/glib2.0-2.38.0/./glib/gthread.c was not found in source tree]
#12 0x00007fde43903f6e in start_thread (arg=0x7fde1e7fc700) at pthread_create.c:311
  [Error: pthread_create.c was not found in source tree]
#13 0x00007fde4362eecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
  [Error: ../sysdeps/unix/sysv/linux/x86_64/clone.S was not found in source tree]