> They are in a separate archive: > https://wiki.debian.org/AutomaticDebugPackages
totem works again. I ran totem again in gdb, and the backtrace mentioned libavcodec.so.57. libavcodec57 was upgraded on my machine last week 2016-07-12 19:59:08 upgrade libavcodec57:amd64 7:3.0.2-4 7:3.1.1-1 2016-07-13 08:26:22 upgrade libavcodec57:amd64 7:3.1.1-1 7:3.1.1-2 I could not downgrade to the version 3.0.2 easily because totem would be removed by the downgrade. But with some trial and error I found totem install gstreamer1.0-libav. I removed the package and reinstalled it and now totem works! This was the backtrace: #0 0x00007ffff60c11c8 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54 resultvar = 0 pid = 15119 selftid = 15133 #1 0x00007ffff60c264a in __GI_abort () at abort.c:89 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x20, sa_sigaction = 0x20}, sa_mask = {__val = {140736234728888, 140736235985293, 142, 140736234748278, 140735878064032, 8, 140736220803665, 140735878062864, 5993174354767485440, 140736240040192, 140735878064032, 140735878065216, 5993174354767485440, 1136, 140736239850576, 140735878064032}}, sa_flags = -1610292464, sa_restorer = 0x7fffa004e000} sigs = {__val = {32, 0 <repeats 15 times>}} #2 0x00007fffb4fbaf5b in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.57 No symbol table info available. #3 0x00007fffb4fbb026 in avcodec_alloc_context3 () from /usr/lib/x86_64-linux-gnu/libavcodec.so.57 No symbol table info available. #4 0x00007fffb6962540 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstlibav.so No symbol table info available. #5 0x00007fffb6958e53 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstlibav.so No symbol table info available. #6 0x00007ffff698d22d in g_type_class_ref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #7 0x00007ffff4f41da4 in gst_element_register () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #8 0x00007fffb69595b3 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstlibav.so No symbol table info available. #9 0x00007fffb694be20 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstlibav.so No symbol table info available. #10 0x00007ffff4f63537 in ?? () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #11 0x00007ffff4f65425 in ?? () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #12 0x00007ffff4f6612c in gst_plugin_load_by_name () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #13 0x00007ffff4f66a8d in gst_plugin_feature_load () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #14 0x00007ffff4f4146e in gst_element_factory_create () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #15 0x00007fffdab36398 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so No symbol table info available. #16 0x00007fffdab42202 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so No symbol table info available. #17 0x00007fffdab42ab2 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so No symbol table info available. #18 0x00007fffdab42cff in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so No symbol table info available. #19 0x00007ffff696cfa5 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #20 0x00007ffff697efc1 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 ---Type <return> to continue, or q <return> to quit--- No symbol table info available. #21 0x00007ffff6987d5c in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #22 0x00007ffff698808f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #23 0x00007ffff69714d4 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #24 0x00007ffff4f14d44 in ?? () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #25 0x00007ffff6973a79 in g_object_notify_by_pspec () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #26 0x00007ffff4f52fbc in ?? () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #27 0x00007ffff4f5e710 in gst_pad_push_event () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #28 0x00007fffb6b80a1b in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstaudioparsers.so No symbol table info available. #29 0x00007fffb6b8128f in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstaudioparsers.so No symbol table info available. #30 0x00007fffef750963 in ?? () from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0 No symbol table info available. #31 0x00007ffff4f54317 in ?? () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #32 0x00007ffff4f5474e in ?? () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #33 0x00007ffff4f54b90 in ?? () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #34 0x00007ffff4f5283f in ?? () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #35 0x00007ffff4f5e864 in gst_pad_push_event () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #36 0x00007fffda2c654e in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so No symbol table info available. #37 0x00007ffff4f87e71 in ?? () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 No symbol table info available. #38 0x00007ffff66bd70e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #39 0x00007ffff66bcd75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #40 0x00007ffff6436464 in start_thread (arg=0x7fffb759d700) at pthread_create.c:333 __res = <optimized out> pd = 0x7fffb759d700 now = <optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736269506304, 8850530636582190115, 0, 140736513293599, 3, 93824999112112, -8850690322792874973, -8850547168739886045}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = <optimized out> pagesize_m1 = <optimized out> ---Type <return> to continue, or q <return> to quit--- sp = <optimized out> freesize = <optimized out> __PRETTY_FUNCTION__ = "start_thread" #41 0x00007ffff617530d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 No locals.