~ gdb /usr/bin/firefox 127 ↵ GNU gdb (GDB) 7.6.2 Copyright (C) 2013 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/lib/firefox/firefox...(no debugging symbols found)...done. (gdb) run Starting program: /usr/bin/firefox warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7ffff7ffa000 warning: Could not load shared library symbols for linux-vdso.so.1. Do you need "set solib-search-path" or "set sysroot"? [Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib/libthread_db.so.1". [New Thread 0x7fffe5fff700 (LWP 6497)] [Thread 0x7fffe5fff700 (LWP 6497) exited] (process:6493): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed [New Thread 0x7fffe5fff700 (LWP 6499)] [New Thread 0x7fffe2bb7700 (LWP 6500)] [New Thread 0x7fffe1fff700 (LWP 6501)] [New Thread 0x7fffe17fe700 (LWP 6502)] [New Thread 0x7fffe0d57700 (LWP 6503)] [New Thread 0x7fffdf9ff700 (LWP 6504)] [New Thread 0x7fffdf1fe700 (LWP 6505)] [New Thread 0x7fffde9fd700 (LWP 6506)] [New Thread 0x7fffde1fc700 (LWP 6507)] [New Thread 0x7fffdd9fb700 (LWP 6508)] [New Thread 0x7fffdd1fa700 (LWP 6509)] [New Thread 0x7fffdc9f9700 (LWP 6510)] [New Thread 0x7fffdc1f8700 (LWP 6511)] [New Thread 0x7fffdb9f7700 (LWP 6512)] [New Thread 0x7fffdb116700 (LWP 6513)] [New Thread 0x7fffda2ff700 (LWP 6514)] [New Thread 0x7fffd166b700 (LWP 6515)] [New Thread 0x7fffd02ff700 (LWP 6516)] [New Thread 0x7fffcfcff700 (LWP 6517)] [New Thread 0x7fffcf4fe700 (LWP 6518)] [New Thread 0x7fffe2356700 (LWP 6519)] [New Thread 0x7fffcccff700 (LWP 6522)] [New Thread 0x7fffcc0ff700 (LWP 6523)] [New Thread 0x7fffcab77700 (LWP 6525)] [New Thread 0x7fffc94ff700 (LWP 6526)] [New Thread 0x7fffc8cfe700 (LWP 6527)] [New Thread 0x7fffc84fd700 (LWP 6528)] [New Thread 0x7fffc7aff700 (LWP 6529)] [Thread 0x7fffc84fd700 (LWP 6528) exited] [Thread 0x7fffdb9f7700 (LWP 6512) exited] [Thread 0x7fffc8cfe700 (LWP 6527) exited] [New Thread 0x7fffbbcff700 (LWP 6530)] [New Thread 0x7fffc84fd700 (LWP 6531)] [New Thread 0x7fffdb9f7700 (LWP 6532)] [New Thread 0x7fffc8cfe700 (LWP 6533)] [New Thread 0x7fffbb4fe700 (LWP 6534)] [New Thread 0x7fffbacfd700 (LWP 6535)] [New Thread 0x7fffba4fc700 (LWP 6536)] [Thread 0x7fffdb9f7700 (LWP 6532) exited] [Thread 0x7fffc8cfe700 (LWP 6533) exited] [Thread 0x7fffbb4fe700 (LWP 6534) exited] [Thread 0x7fffbacfd700 (LWP 6535) exited] [Thread 0x7fffba4fc700 (LWP 6536) exited] [Thread 0x7fffc84fd700 (LWP 6531) exited] [New Thread 0x7fffb98ff700 (LWP 6537)] [New Thread 0x7fffdb9f7700 (LWP 6538)] [Thread 0x7fffc7aff700 (LWP 6529) exited] [New Thread 0x7fffc7aff700 (LWP 6539)] [New Thread 0x7fffc8cfe700 (LWP 6540)] [New Thread 0x7fffbb4fe700 (LWP 6541)] [New Thread 0x7fffbacfd700 (LWP 6542)] [New Thread 0x7fffb90fe700 (LWP 6543)] [New Thread 0x7fffb88fd700 (LWP 6544)] [New Thread 0x7fffb80fc700 (LWP 6545)] [New Thread 0x7fffb78fb700 (LWP 6547)] [New Thread 0x7fffb70fa700 (LWP 6548)] [New Thread 0x7fffb5fff700 (LWP 6549)] [New Thread 0x7fffb9fff700 (LWP 6550)] [New Thread 0x7fffb53ff700 (LWP 6551)] [New Thread 0x7fffb4bfe700 (LWP 6552)] [New Thread 0x7fffb41ff700 (LWP 6553)] [Thread 0x7fffb4bfe700 (LWP 6552) exited] [Thread 0x7fffb41ff700 (LWP 6553) exited] [Thread 0x7fffdb9f7700 (LWP 6538) exited] [New Thread 0x7fffb4bfe700 (LWP 6554)] [Thread 0x7fffb53ff700 (LWP 6551) exited] [New Thread 0x7fffb53ff700 (LWP 6555)] [New Thread 0x7fffb41ff700 (LWP 6556)] [New Thread 0x7fffdb9f7700 (LWP 6557)] [Thread 0x7fffb41ff700 (LWP 6556) exited] [Thread 0x7fffdb9f7700 (LWP 6557) exited] [New Thread 0x7fffb20ff700 (LWP 6558)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffb20ff700 (LWP 6558)] 0x00007ffff590f20d in ?? () from /usr/lib/firefox/libxul.so (gdb) bt #0 0x00007ffff590f20d in ?? () from /usr/lib/firefox/libxul.so #1 0x00007ffff58662b1 in ?? () from /usr/lib/firefox/libxul.so #2 0x00007ffff56d182f in ?? () from /usr/lib/firefox/libxul.so #3 0x00007ffff56d226e in ?? () from /usr/lib/firefox/libxul.so #4 0x00007ffff5791eea in ?? () from /usr/lib/firefox/libxul.so #5 0x00007ffff5793e32 in ?? () from /usr/lib/firefox/libxul.so #6 0x00007ffff5794798 in ?? () from /usr/lib/firefox/libxul.so #7 0x00007ffff4826442 in ?? () from /usr/lib/firefox/libxul.so #8 0x00007ffff48264b4 in ?? () from /usr/lib/firefox/libxul.so #9 0x00007ffff482abc4 in ?? () from /usr/lib/firefox/libxul.so #10 0x00007ffff482be90 in ?? () from /usr/lib/firefox/libxul.so #11 0x00007ffff481c095 in ?? () from /usr/lib/firefox/libxul.so #12 0x00007ffff515ee09 in ?? () from /usr/lib/firefox/libxul.so #13 0x00007ffff511d4b9 in ?? () from /usr/lib/firefox/libxul.so #14 0x00007ffff515f705 in ?? () from /usr/lib/firefox/libxul.so #15 0x00007ffff0b80a71 in ?? () from /usr/lib/libnspr4.so #16 0x00007ffff7bc80a2 in start_thread () from /usr/lib/libpthread.so.0 #17 0x00007ffff70f03dd in clone () from /usr/lib/libc.so.6