[Pkg-mpd-maintainers] Bug#998310: mpd: fails to start with "Assertion `sockets.empty()' failed."

[Benjamin Francois]

On Wed%2C 3 Nov 2021 07%3A08%3A23 %2B0100 Max Kellermann wrote%3A
> Thanks%2C that was almost helpful - but you did not install mpd-dbgsym%2C

Whoops :'D let's try one more time then.
❯ sudo gdb --args mpd --stderr --no-daemon --verbose
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Reading symbols from mpd...
Reading symbols from /usr/lib/debug/.build-id/26/be37e73d656eddadb9ab98d3becf1abd7d1696.debug...
(gdb) catch throw
Catchpoint 1 (throw)
(gdb) run
Starting program: /usr/bin/mpd --stderr --no-daemon --verbose
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
config_file: loading file /etc/mpd.conf
path: SetFSCharset: fs charset is
libsamplerate: libsamplerate converter 'Fastest Sinc Interpolator'
vorbis: Xiph.Org libVorbis 1.3.7
opus: libopus 1.3.1
sndfile: libsndfile-1.0.31
adplug: adplug 2.3.3
simple_db: reading DB

Catchpoint 1 (exception thrown), 0x00007ffff36a5322 in __cxa_throw () from /lib/x86_64-linux-gnu/libstdc++.so.6
(gdb) bt
#0 0x00007ffff36a5322 in __cxa_throw () at /lib/x86_64-linux-gnu/libstdc++.so.6
#1 0x000055555559e71f in db_load_internal(TextFile&, Directory&) (file=<optimized out>, music_root=<optimized out>) at ../src/db/plugins/simple/DatabaseSave.cxx:112
#2 0x000055555565fa6c in SimpleDatabase::Load() (this=0x55555578a040) at ../src/db/plugins/simple/SimpleDatabasePlugin.cxx:158
#3 0x0000555555660721 in SimpleDatabase::Open() (this=0x55555578a040) at ../src/db/plugins/simple/SimpleDatabasePlugin.cxx:178
#4 0x00005555555a4aed in glue_db_init_and_load (config=..., instance=...) at ../src/Main.cxx:221
#5 InitDatabaseAndStorage (config=..., instance=...) at ../src/Main.cxx:244
#6 MainConfigured(options const&, ConfigData const&) (options=<optimized out>, raw_config=...) at ../src/Main.cxx:444
#7 0x00005555555a4d4d in MainOrThrow(int, char**) (argc=<optimized out>, argv=<optimized out>) at ../src/Main.cxx:650
#8 0x00005555555a302a in mpd_main(int, char**) (argv=<optimized out>, argc=<optimized out>) at ../src/Main.cxx:656
#9 main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ../src/Main.cxx:668
(gdb) cont
Continuing.
exception: Tag list mismatch, discarding database file
curl: version 7.74.0
curl: with GnuTLS/3.7.2

Catchpoint 1 (exception thrown), 0x00007ffff36a5322 in __cxa_throw () from /lib/x86_64-linux-gnu/libstdc++.so.6
(gdb) bt
#0 0x00007ffff36a5322 in __cxa_throw () at /lib/x86_64-linux-gnu/libstdc++.so.6
#1 0x000055555558ba6e in PidFile::PidFile(AllocatedPath const&) (path=<optimized out>, this=<optimized out>) at ../src/unix/PidFile.hxx:46
#2 daemonize_commit() () at ../src/unix/Daemon.cxx:212
#3 0x00005555555a44ed in MainConfigured(options const&, ConfigData const&) (options=<optimized out>, raw_config=...) at ../src/Main.cxx:468
#4 0x00005555555a4d4d in MainOrThrow(int, char**) (argc=<optimized out>, argv=<optimized out>) at ../src/Main.cxx:650
#5 0x00005555555a302a in mpd_main(int, char**) (argv=<optimized out>, argc=<optimized out>) at ../src/Main.cxx:656
#6 main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ../src/Main.cxx:668
(gdb) cont
Continuing.
mpd: ../src/event/Loop.cxx:60: EventLoop::~EventLoop(): Assertion `sockets.empty()' failed.

Program received signal SIGABRT, Aborted.
__GI_raise (sig=sig at entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
49 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0 __GI_raise (sig=sig at entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
#1 0x00007ffff32db536 in __GI_abort () at abort.c:79
#2 0x00007ffff32db41f in __assert_fail_base
(fmt=0x7ffff34426b0 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x55555569afa2 "sockets.empty()", file=0x55555569af5c "../src/event/Loop.cxx", line=60, function=<optimized out>) at assert.c:92
#3 0x00007ffff32ea7f2 in __GI___assert_fail
(assertion=0x55555569afa2 "sockets.empty()", file=0x55555569af5c "../src/event/Loop.cxx", line=60, function=0x55555569af44 "EventLoop::~EventLoop()")
at assert.c:101
#4 0x00005555555e5458 in EventLoop::~EventLoop() (this=this at entry=0x7fffffffcbc8, __in_chrg=<optimized out>) at ../src/event/Loop.cxx:60
#5 0x00005555555b7c56 in EventThread::~EventThread() (this=0x7fffffffcbc8, __in_chrg=<optimized out>) at ../src/event/Thread.hxx:43
#6 Instance::~Instance() (this=this at entry=0x7fffffffc310, __in_chrg=<optimized out>) at ../src/Instance.cxx:75
#7 0x00005555555867a1 in MainConfigured(options const&, ConfigData const&) (options=<optimized out>, raw_config=<optimized out>) at ../src/Main.cxx:578
#8 0x00005555555a4d4d in MainOrThrow(int, char**) (argc=<optimized out>, argv=<optimized out>) at ../src/Main.cxx:650
#9 0x00005555555a302a in mpd_main(int, char**) (argv=<optimized out>, argc=<optimized out>) at ../src/Main.cxx:656
#10 main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ../src/Main.cxx:668
(gdb) cont
Continuing.

Program terminated with signal SIGABRT, Aborted.
The program no longer exists.
(gdb)

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