Comment # 5 on bug 1099886 from Jon Nelson

It's happened four more times since my most recent update:

Mon 2018-07-02 19:07:59 CDT   31809     0     0   6 present  
/usr/sbin/snapperd
Tue 2018-07-03 10:56:06 CDT   26865     0     0   6 present  
/usr/sbin/snapperd
Tue 2018-07-03 11:18:22 CDT    3377     0     0   6 present  
/usr/sbin/snapperd
Tue 2018-07-03 22:46:34 CDT   30419     0     0   6 present  
/usr/sbin/snapperd


snapper ls, and other uses of snapper from the commandline don't appear to
cause issues.

Here are some logs that might be useful:

2018-07-03T10:56:06.689925-05:00 turnip systemd-coredump[28117]: Process 26865
(snapperd) of user 0 dumped core.
2018-07-03T10:57:22.979236-05:00 turnip dbus-daemon[1190]: [system] Activating
service name='org.opensuse.Snapper' requested by ':1.1864' (uid=0 pid=
28318 comm="snapper list-configs ") (using servicehelper)
2018-07-03T11:00:01.730956-05:00 turnip dbus-daemon[1190]: [system] Activating
service name='org.opensuse.Snapper' requested by ':1.1872' (uid=0 pid=
29187 comm="/usr/lib/snapper/systemd-helper --timeline ") (using servicehelper)
2018-07-03T11:17:17.633994-05:00 turnip [RPM][3402]: install
snapper-debugsource-0.5.4-lp150.3.3.1.x86_64: success
2018-07-03T11:17:17.636282-05:00 turnip [RPM][3402]: install
snapper-debugsource-0.5.4-lp150.3.3.1.x86_64: success
2018-07-03T11:17:18.987389-05:00 turnip [RPM][3404]: install
snapper-debuginfo-0.5.4-lp150.3.3.1.x86_64: success
2018-07-03T11:17:18.989263-05:00 turnip [RPM][3404]: install
snapper-debuginfo-0.5.4-lp150.3.3.1.x86_64: success
2018-07-03T11:18:22.551995-05:00 turnip systemd-coredump[3581]: Process 3377
(snapperd) of user 0 dumped core.


(ironically dumping core as a result of installing snapper-debuginfo)


*Most* (automatic!) invocations don't seem to cause issues, but this one did:

2018-07-03T22:00:01.359923-05:00 turnip dbus-daemon[1190]: [system] Activating
service name='org.opensuse.Snapper' requested by ':1.2755' (uid=0 pid=19502
comm="/usr/lib/snapper/systemd-helper --timeline ") (using servicehelper)
2018-07-03T22:46:34.476313-05:00 turnip systemd-coredump[30869]: Process 30419
(snapperd) of user 0 dumped core.




PID 30419 has this backtrace:


t(gdb) bt
#0  0x00007f8d61fde0e0 in raise () from /lib64/libc.so.6
#1  0x00007f8d61fdf6c1 in abort () from /lib64/libc.so.6
#2  0x00007f8d62612485 in __gnu_cxx::__verbose_terminate_handler() () from
/usr/lib64/libstdc++.so.6
#3  0x00007f8d62610276 in ?? () from /usr/lib64/libstdc++.so.6
#4  0x00007f8d6260f239 in ?? () from /usr/lib64/libstdc++.so.6
#5  0x00007f8d6260fba8 in __gxx_personality_v0 () from
/usr/lib64/libstdc++.so.6
#6  0x00007f8d623723c3 in ?? () from /lib64/libgcc_s.so.1
#7  0x00007f8d62372bee in _Unwind_Resume () from /lib64/libgcc_s.so.1
#8  0x00007f8d630095f0 in snapper::logStreamClose(snapper::LogLevel, char
const*, unsigned int, char const*, std::__cxx11::basic_ostringstream<char,
std::char_traits<char>, std::allocator<char> >*) () from
/usr/lib64/libsnapper.so.4
#9  0x00007f8d62fd9774 in snapper::Snapper::~Snapper() () from
/usr/lib64/libsnapper.so.4
#10 0x00005614c4a88eeb in MetaSnapper::~MetaSnapper (this=0x5614c578ea90,
__in_chrg=<optimized out>) at MetaSnapper.cc:105
#11 0x00005614c4a88ffc in __gnu_cxx::new_allocator<std::_List_node<MetaSnapper>
>::destroy<MetaSnapper> (this=<optimized out>, __p=<optimized out>)
    at /usr/include/c++/7/ext/new_allocator.h:140
#12 std::allocator_traits<std::allocator<std::_List_node<MetaSnapper> >
>::destroy<MetaSnapper> (__a=..., __p=<optimized out>)
    at /usr/include/c++/7/bits/alloc_traits.h:487
#13 std::__cxx11::_List_base<MetaSnapper, std::allocator<MetaSnapper>
>::_M_clear (this=0x5614c4ca3ba0 <meta_snappers>)
    at /usr/include/c++/7/bits/list.tcc:76
#14 std::__cxx11::_List_base<MetaSnapper, std::allocator<MetaSnapper>
>::~_List_base (this=0x5614c4ca3ba0 <meta_snappers>, 
    __in_chrg=<optimized out>) at /usr/include/c++/7/bits/stl_list.h:442
#15 std::__cxx11::list<MetaSnapper, std::allocator<MetaSnapper> >::~list
(this=0x5614c4ca3ba0 <meta_snappers>, __in_chrg=<optimized out>)
    at /usr/include/c++/7/bits/stl_list.h:733
#16 MetaSnappers::~MetaSnappers (this=0x5614c4ca3ba0 <meta_snappers>,
__in_chrg=<optimized out>) at MetaSnapper.cc:184
#17 0x00007f8d61fe0cf8 in __run_exit_handlers () from /lib64/libc.so.6
#18 0x00007f8d61fe0d4a in exit () from /lib64/libc.so.6
#19 0x00007f8d61fc8f51 in __libc_start_main () from /lib64/libc.so.6
#20 0x00005614c4a6d96a in _start () at ../sysdeps/x86_64/start.S:120
(gdb)