Subject: bug#44820: closed (Re: bug#44820: MPD fails after respawning too often)

From: [email-masked] (GNU bug Tracking System)
Date: Mon, 07 Dec 2020 08:45:01 +0000

Your bug report

#44820: MPD fails after respawning too often

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
44820: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=44820
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: Re: bug#44820: MPD fails after respawning too often
From: Ludovic Courtès <[email-masked]>
To: Martin Becze <[email-masked]>
Cc: [email-masked]
Date: Mon, 07 Dec 2020 09:44:13 +0100
List-Id: <debbugs-submit.debbugs.gnu.org>

Hi!

I believe this is fixed by ce3b5e5a8d8566162201cb778c4586f94a626dfa.

Thanks,
Ludo’.

Subject: MPD fails after respawning too often
From: Simon <[email-masked]>
To: [email-masked]
Date: Mon, 23 Nov 2020 14:24:54 +0100
List-Id: <debbugs-submit.debbugs.gnu.org>

On a recent pull, MPD will not start any more.

Herd status reports:
--8<---------------cut here---------------start------------->8---
Status of mpd:
  It is stopped.
  It is disabled.
  Provides (mpd).
  Requires (user-processes).
  Conflicts with ().
  Will be respawned.
  Last respawned on Mon Nov 23 10:22:07+0100 2020.
--8<---------------cut here---------------end--------------->8---

Reading my messages, I find:
--8<---------------cut here---------------start------------->8---
Nov 23 10:22:07 localhost shepherd[1]: Respawning mpd.
Nov 23 10:22:07 localhost shepherd[1]: Service mpd has been started.
Nov 23 10:22:07 localhost shepherd[1]: Respawning mpd.
Nov 23 10:22:07 localhost shepherd[1]: Service mpd has been started.
Nov 23 10:22:07 localhost shepherd[1]: Respawning mpd.
Nov 23 10:22:07 localhost shepherd[1]: Service mpd has been started.
Nov 23 10:22:07 localhost shepherd[1]: Respawning mpd.
Nov 23 10:22:07 localhost shepherd[1]: Service mpd has been started.
Nov 23 10:22:07 localhost shepherd[1]: Respawning mpd.
Nov 23 10:22:07 localhost shepherd[1]: Service mpd has been started.
Nov 23 10:22:07 localhost shepherd[1]: Respawning mpd.
Nov 23 10:22:07 localhost shepherd[1]: Service mpd has been started.
Nov 23 10:22:07 localhost shepherd[1]: Service mpd has been disabled.
Nov 23 10:22:07 localhost shepherd[1]:   (Respawning too fast.)
--8<---------------cut here---------------end--------------->8---

Unfortunately, there are no further messages as to why the service is
disabled, or why the daemon is respawning too often.

If I manually call the daemon with `$ ./mpd --no-daemon --stdout
--verbose' from the store, I get:
--8<---------------cut here---------------start------------->8---
config_file: loading file /home/user/.config/mpd/mpd.conf
libsamplerate: libsamplerate converter 'Fastest Sinc Interpolator'
vorbis: Xiph.Org libVorbis 1.3.6
opus: libopus 1.3.1
sndfile: libsndfile-1.0.30
hybrid_dsd: The Hybrid DSD decoder is disabled because it was not explicitly enabled
simple_db: reading DB
curl: version 7.71.0
curl: with GnuTLS/3.6.14
state_file: Loading state file /home/user/.mpd/state
exception: RTIOThread could not get realtime scheduling, continuing anyway: sched_setscheduler failed: Operation not permitted
playlist: queue song 7:"Can/CAN/08 Can Be.mp3"
decoder_thread: probing plugin ffmpeg
exception: OutputThread could not get realtime scheduling, continuing anyway: sched_setscheduler failed: Operation not permitted
ffmpeg/mp3: Format mp3 probed with size=65536 and score=51
ffmpeg/mp3: pad 576 1788
ffmpeg/mp3: Skipping 0 bytes of junk at 37617.
ffmpeg: detected input format 'mp3' (MP2/3 (MPEG audio layer 2/3))
ffmpeg/mp3: Before avformat_find_stream_info() pos: 37617 bytes read:65536 seeks:0 nb_streams:2
ffmpeg/mjpeg: marker=d8 avail_size_in_buf=34312
ffmpeg/mjpeg: marker parser used 0 bytes (0 bits)
ffmpeg/mjpeg: marker=e0 avail_size_in_buf=34310
ffmpeg/mjpeg: marker parser used 16 bytes (128 bits)
ffmpeg/mjpeg: marker=db avail_size_in_buf=34292
ffmpeg/mjpeg: index=0
ffmpeg/mjpeg: qscale[0]: 2
ffmpeg/mjpeg: marker parser used 67 bytes (536 bits)
ffmpeg/mjpeg: marker=db avail_size_in_buf=34223
ffmpeg/mjpeg: index=1
ffmpeg/mjpeg: qscale[1]: 5
ffmpeg/mjpeg: marker parser used 67 bytes (536 bits)
ffmpeg/mjpeg: marker=c0 avail_size_in_buf=34154
ffmpeg/mjpeg: Changing bps from 0 to 8
ffmpeg/mjpeg: sof0: picture: 622x622
ffmpeg/mjpeg: component 0 2:2 id: 0 quant:0
ffmpeg/mjpeg: component 1 1:1 id: 1 quant:1
ffmpeg/mjpeg: component 2 1:1 id: 2 quant:1
ffmpeg/mjpeg: pix fmt id 22111100
ffmpeg/mjpeg: Format yuvj420p chosen by get_format().
ffmpeg/mjpeg: marker parser used 17 bytes (136 bits)
ffmpeg/mjpeg: marker=c4 avail_size_in_buf=34135
ffmpeg/mjpeg: marker parser used 0 bytes (0 bits)
ffmpeg/mjpeg: marker=c4 avail_size_in_buf=34102
ffmpeg/mjpeg: marker parser used 0 bytes (0 bits)
ffmpeg/mjpeg: marker=c4 avail_size_in_buf=33919
ffmpeg/mjpeg: marker parser used 0 bytes (0 bits)
ffmpeg/mjpeg: marker=c4 avail_size_in_buf=33886
ffmpeg/mjpeg: marker parser used 0 bytes (0 bits)
ffmpeg/mjpeg: escaping removed 102 bytes
ffmpeg/mjpeg: marker=da avail_size_in_buf=33703
ffmpeg/mjpeg: marker parser used 33601 bytes (268808 bits)
ffmpeg/mjpeg: marker=d9 avail_size_in_buf=0
ffmpeg/mjpeg: decode frame unused 0 bytes
ffmpeg/mp3: demuxer injecting skip 1105 / discard 0
ffmpeg/mp3float: skip 1105 / discard 0 samples due to side data
ffmpeg/mp3float: skip 1105/1152 samples
ffmpeg/mp3: All info found
ffmpeg/mp3: stream 0: start_time: 0.0250567 duration: 22.3869
ffmpeg/mp3: stream 1: start_time: 0.0250556 duration: 22.3869
ffmpeg/mp3: format: start_time: 0.025056 duration: 22.3869 (estimate from stream) bitrate=333 kb/s
ffmpeg/mp3: After avformat_find_stream_info() pos: 90865 bytes read:98304 seeks:0 frames:51
ffmpeg: codec 'mp3'
decoder: audio_format=44100:f:2, seekable=true
ffmpeg/mp3: demuxer injecting skip 1105 / discard 0
client: [0] opened from 127.0.0.1:40210
client: [0] process command "status"
client: [0] command returned 0
client: [0] process command "plchanges "0""
client: [0] command returned 0
client: [0] process command "decoders"
client: [0] command returned 0
client: [0] process command "idle"
client: [0] command returned 1
^Cstate_file: Saving state file /home/user/.mpd/state
player: played "Can/CAN/07 Ping Pong.mp3"
fifo_output: Removing FIFO "/tmp/mpd.fifo"
--8<---------------cut here---------------end--------------->8---

Hence the daemon will run it manually from the store, but there are no
hints as to why it fails at boot time.

Any help is appreciated.

Cheers,
Simon