I have never done any manual Avahi configuration, and this is a fresh install of Ubuntu 16.10 on my new Macbook Pro. Where do the valgrind logs live?
Also, it's doing the 100% cpu thing right now, so bt is below. Note there's a lot of missing debugging symbols, but I don't see any -dbg packages for libavahi or similar. If you can suggest how to get these debugging symbols installed, I imagine it'll make the backtrace more illuminating: $ sudo gdb -p 12169 GNU gdb (Ubuntu 7.11.90.20161005-0ubuntu1) 7.11.90.20161005-git Copyright (C) 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> 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-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word". Attaching to process 12169 Reading symbols from /usr/sbin/avahi-daemon...(no debugging symbols found)...done. Reading symbols from /usr/lib/x86_64-linux-gnu/libavahi-common.so.3...(no debugging symbols found)...done. Reading symbols from /usr/lib/x86_64-linux-gnu/libavahi-core.so.7...(no debugging symbols found)...done. Reading symbols from /usr/lib/x86_64-linux-gnu/libdaemon.so.0...(no debugging symbols found)...done. Reading symbols from /lib/x86_64-linux-gnu/libexpat.so.1...(no debugging symbols found)...done. Reading symbols from /lib/x86_64-linux-gnu/libcap.so.2...(no debugging symbols found)...done. Reading symbols from /lib/x86_64-linux-gnu/libdl.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libdl-2.24.so...done. done. Reading symbols from /lib/x86_64-linux-gnu/libdbus-1.so.3...(no debugging symbols found)...done. Reading symbols from /lib/x86_64-linux-gnu/libpthread.so.0...Reading symbols from /usr/lib/debug/.build-id/71/b2c79a4defc42524ea7e564173f0b65fe89010.debug...done. done. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Reading symbols from /lib/x86_64-linux-gnu/libc.so.6...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libc-2.24.so...done. done. Reading symbols from /lib64/ld-linux-x86-64.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/ld-2.24.so...done. done. Reading symbols from /lib/x86_64-linux-gnu/libsystemd.so.0...(no debugging symbols found)...done. Reading symbols from /lib/x86_64-linux-gnu/libselinux.so.1...(no debugging symbols found)...done. Reading symbols from /lib/x86_64-linux-gnu/librt.so.1...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/librt-2.24.so...done. done. Reading symbols from /lib/x86_64-linux-gnu/liblzma.so.5...(no debugging symbols found)...done. Reading symbols from /lib/x86_64-linux-gnu/libgcrypt.so.20...(no debugging symbols found)...done. Reading symbols from /lib/x86_64-linux-gnu/libpcre.so.3...(no debugging symbols found)...done. Reading symbols from /lib/x86_64-linux-gnu/libgpg-error.so.0...(no debugging symbols found)...done. Reading symbols from /lib/x86_64-linux-gnu/libnss_compat.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnss_compat-2.24.so...done. done. Reading symbols from /lib/x86_64-linux-gnu/libnsl.so.1...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnsl-2.24.so...done. done. Reading symbols from /lib/x86_64-linux-gnu/libnss_nis.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnss_nis-2.24.so...done. done. Reading symbols from /lib/x86_64-linux-gnu/libnss_files.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnss_files-2.24.so...done. done. 0x00007f36c9a08f0a in __mmap (addr=0x0, len=4096, prot=<optimized out>, flags=34, fd=<optimized out>, offset=0) at ../sysdeps/unix/sysv/linux/wordsize-64/mmap.c:34 34 ../sysdeps/unix/sysv/linux/wordsize-64/mmap.c: No such file or directory. (gdb) bt #0 0x00007f36c9a08f0a in __mmap (addr=0x0, len=4096, prot=<optimized out>, flags=34, fd=<optimized out>, offset=0) at ../sysdeps/unix/sysv/linux/wordsize-64/mmap.c:34 #1 0x00007f36c998a5d1 in sysmalloc (nb=nb@entry=32, av=<optimized out>) at malloc.c:2332 #2 0x00007f36c998b50a in _int_malloc (av=av@entry=0x0, bytes=bytes@entry=8) at malloc.c:3862 #3 0x00007f36c998dc0a in __libc_calloc (n=<optimized out>, elem_size=<optimized out>) at malloc.c:3281 #4 0x00007f36c9f0e067 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3 #5 0x00007f36c9f0a9e7 in dbus_message_get_path_decomposed () from /lib/x86_64-linux-gnu/libdbus-1.so.3 #6 0x00007f36c9f0da93 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3 #7 0x00007f36c9eff264 in dbus_connection_dispatch () from /lib/x86_64-linux-gnu/libdbus-1.so.3 #8 0x00005628bc167506 in ?? () #9 0x00007f36cabad5f8 in avahi_simple_poll_dispatch () from /usr/lib/x86_64-linux-gnu/libavahi-common.so.3 #10 0x00005628bc158ebe in ?? () #11 0x00007f36c99273f1 in __libc_start_main (main=0x5628bc158470, argc=2, argv=0x7ffe60321fe8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe60321fd8) at ../csu/libc-start.c:291 #12 0x00005628bc159519 in ?? () -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1638345 Title: avahi-daemon crashes multiple times an hour To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1638345/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs