GNU gdb (GDB) 7.3.1 Copyright (C) 2011 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-unknown-linux-gnu". For bug reporting instructions, please see: ... Reading symbols from /usr/bin/python2...(no debugging symbols found)...done. (gdb) run Starting program: /usr/bin/python2 test.py [Thread debugging using libthread_db enabled] Program received signal SIGSEGV, Segmentation fault. 0x00007ffff5f4fd82 in cache_node_lookup (cache=0x0, key=0x7fffffffaab0 "iso-8859-1:UTF-8", use=1) at cache.c:110 110 node = g_hash_table_lookup (cache->node_hash, key); (gdb) bt #0 0x00007ffff5f4fd82 in cache_node_lookup (cache=0x0, key=0x7fffffffaab0 "iso-8859-1:UTF-8", use=1) at cache.c:110 #1 0x00007ffff5f2759c in g_mime_iconv_open (to=0x761ef0 "UTF-8", from=0x83d590 "iso-8859-1") at gmime-iconv.c:261 #2 0x00007ffff5f4633f in rfc2047_decode_word (in=0x82f350 "=?ISO-8859-1?Q?Fran=E7ois_Boulogne?=", inlen=36) at gmime-utils.c:1839 #3 0x00007ffff5f46ad1 in g_mime_utils_header_decode_phrase (phrase=0x82f350 "=?ISO-8859-1?Q?Fran=E7ois_Boulogne?=") at gmime-utils.c:2084 #4 0x00007ffff5f4a759 in _internet_address_decode_name (ia=0x83d630, name=0x88fae0) at internet-address.c:1367 #5 0x00007ffff5f4afab in decode_address (in=0x7fffffffad60) at internet-address.c:1659 #6 0x00007ffff5f4b003 in internet_address_list_parse_string (str=0x766530 "\"=?ISO-8859-1?Q?Fran=E7ois_Boulogne?=\" ") at internet-address.c:1692 #7 0x00007ffff61915d7 in _thread_add_message (thread=0x6d99d0, message=0x6d9330) at lib/thread.cc:236 #8 0x00007ffff6191dd7 in _notmuch_thread_create (ctx=0x7d54e0, notmuch=0x6e01d0, seed_doc_id=213092, match_set=0x83c888, sort=NOTMUCH_SORT_NEWEST_FIRST) at lib/thread.cc:470 #9 0x00007ffff61906b7 in notmuch_threads_get (threads=0x83c870) at lib/query.cc:392 #10 0x00007ffff65a7e34 in ffi_call_unix64 () from /usr/lib/libffi.so.5 #11 0x00007ffff65a7855 in ffi_call () from /usr/lib/libffi.so.5 #12 0x00007ffff67bb1f7 in _ctypes_callproc () from /usr/lib/python2.7/lib-dynload/_ctypes.so #13 0x00007ffff67b4a86 in ?? () from /usr/lib/python2.7/lib-dynload/_ctypes.so #14 0x00007ffff7a66683 in PyObject_Call () from /usr/lib/libpython2.7.so.1.0 #15 0x00007ffff7afbbda in PyEval_EvalFrameEx () from /usr/lib/libpython2.7.so.1.0 #16 0x00007ffff7afe8ef in PyEval_EvalCodeEx () from /usr/lib/libpython2.7.so.1.0 #17 0x00007ffff7a8b15c in function_call () from /usr/lib/libpython2.7.so.1.0 #18 0x00007ffff7a66683 in PyObject_Call () from /usr/lib/libpython2.7.so.1.0 #19 0x00007ffff7a752bf in instancemethod_call () from /usr/lib/libpython2.7.so.1.0 #20 0x00007ffff7a66683 in PyObject_Call () from /usr/lib/libpython2.7.so.1.0 #21 0x00007ffff7abc002 in call_method () from /usr/lib/libpython2.7.so.1.0 #22 0x00007ffff7af8b1f in PyEval_EvalFrameEx () from /usr/lib/libpython2.7.so.1.0 #23 0x00007ffff7afe8ef in PyEval_EvalCodeEx () from /usr/lib/libpython2.7.so.1.0 #24 0x00007ffff7afea22 in PyEval_EvalCode () from /usr/lib/libpython2.7.so.1.0 #25 0x00007ffff7b18d8c in run_mod () from /usr/lib/libpython2.7.so.1.0 #26 0x00007ffff7b19b90 in PyRun_FileExFlags () from /usr/lib/libpython2.7.so.1.0 #27 0x00007ffff7b1a60f in PyRun_SimpleFileExFlags () from /usr/lib/libpython2.7.so.1.0 #28 0x00007ffff7b2bd25 in Py_Main () from /usr/lib/libpython2.7.so.1.0 #29 0x00007ffff747e38d in __libc_start_main () from /lib/libc.so.6 #30 0x00000000004006a1 in _start () (gdb) frame 1 #1 0x00007ffff5f2759c in g_mime_iconv_open (to=0x761ef0 "UTF-8", from=0x83d590 "iso-8859-1") at gmime-iconv.c:261 261 if ((node = (IconvCacheNode *) cache_node_lookup (iconv_cache, key, TRUE))) { (gdb) list 256 key = g_alloca (strlen (from) + strlen (to) + 2); 257 sprintf (key, "%s:%s", from, to); 258 259 ICONV_CACHE_LOCK (); 260 261 if ((node = (IconvCacheNode *) cache_node_lookup (iconv_cache, key, TRUE))) { 262 if (node->used) { 263 if ((cd = iconv_open (to, from)) == (iconv_t) -1) 264 goto exception; 265 } else { (gdb) print iconv_cache $1 = (Cache *) 0x0 (gdb)