SolvedMPD io_uring throws and exception

Bug report

Describe the bug

I get a memory allocation exception since yesterday after updating to MPD 0.22. Also, many files went missing in the library.

EDIT: A rescan fixed the data base problems, but it is weird that the data base got scrambled in the first place.


Music Player Daemon 0.22 (0.22)
Copyright 2003-2007 Warren Dukes <>
Copyright 2008-2018 Max Kellermann <>
This is free software; see the source for copying conditions.  There is NO

Database plugins:
 simple proxy upnp

Storage plugins:
 local smbclient udisks nfs curl

Neighbor plugins:
 smbclient upnp udisks

Decoders plugins:
 [mad] mp3 mp2
 [mpg123] mp3
 [vorbis] ogg oga
 [oggflac] ogg oga
 [flac] flac
 [opus] opus ogg oga
 [sndfile] wav aiff aif au snd paf iff svx sf voc w64 pvf xi htk caf sd2
 [audiofile] wav au aiff aif
 [dsdiff] dff
 [dsf] dsf
 [hybrid_dsd] m4a
 [faad] aac
 [mpcdec] mpc
 [wavpack] wv
 [modplug] 669 amf ams dbm dfm dsm far it med mdl mod mtm mt2 okt s3m stm ult umx xm
 [mikmod] amf dsm far gdm imf it med mod mtm s3m stm stx ult uni xm
 [sidplay] sid mus str prg P00
 [wildmidi] mid
 [fluidsynth] mid
 [ffmpeg] 16sv 3g2 3gp 4xm 8svx aa3 aac ac3 adx afc aif aifc aiff al alaw amr anim apc ape asf atrac au aud avi avm2 avs bap bfi c93 cak cin cmv cpk daud dct divx dts dv dvd dxa eac3 film flac flc fli fll flx flv g726 gsm gxf iss m1v m2v m2t m2ts m4a m4b m4v mad mj2 mjpeg mjpg mka mkv mlp mm mmf mov mp+ mp1 mp2 mp3 mp4 mpc mpeg mpg mpga mpp mpu mve mvi mxf nc nsv nut nuv oga ogm ogv ogx oma ogg omg opus psp pva qcp qt r3d ra ram rl2 rm rmvb roq rpl rvc shn smk snd sol son spx str swf tak tgi tgq tgv thp ts tsp tta xa xvid uv uv2 vb vid vob voc vp6 vmd wav webm wma wmv wsaud wsvga wv wve rtp:// rtsp:// rtsps://
 [gme] ay gbs gym hes kss nsf nsfe sap spc vgm vgz

 libsamplerate soxr

Tag plugins:

Output plugins:
 shout null fifo pipe alsa ao oss openal solaris pulse jack httpd recorder

Encoder plugins:
 null vorbis opus lame twolame wave flac

Archive plugins:
 [bz2] bz2
 [zzip] zip
 [iso] iso

Input plugins:
 file io_uring archive alsa tidal qobuz curl ffmpeg smbclient nfs mms cdio_paranoia

Playlist plugins:
 extm3u m3u pls xspf asx rss soundcloud flac cue embcue

 file:// alsa:// cdda:// ftp:// ftps:// gopher:// hls+http:// hls+https:// http:// https:// mms:// mmsh:// mmst:// mmsu:// nfs:// qobuz:// rtmp:// rtmpe:// rtmps:// rtmpt:// rtmpte:// rtmpts:// rtp:// rtsp:// rtsps:// scp:// sftp:// smb:// srtp:// tidal://

Other features:
 avahi dbus udisks epoll icu inotify ipv6 systemd tcp un


Oct 03 17:25:03 blaubaer systemd[765]: Starting Music Player Daemon...
Oct 03 17:25:03 blaubaer mpd[5107]: Failed to initialize io_uring: io_uring_queue_init() failed: Cannot allocate memory
Oct 03 17:25:03 blaubaer systemd[765]: Started Music Player Daemon.
26 Answers

✔️Accepted Answer

Works fine after ulimit -l 65535 which sets the limit to 64 MiB (oh just saw your message). Yeah it's all good.

Related Issues:

MPD io_uring throws and exception
Works fine after ulimit -l 65535 which sets the limit to 64 MiB (oh just saw your message) Yeah it's...
react player Error parsing header X-XSS-Protection: 1; When playing youtube videos
It's a known bug in current Google Chrome and Chromium:
tenacity Transparency and trust
Hi I can understand your concerns; maybe explaining the background behind the decision AudioBakery w...
allegro5 Android build fails due to deprecated 'android' command
I have searched and found no replacement for the android update project command ...
mumble macOS Mojave: passing the null port to CGEventTapEnable() segfaults
This is because the accessibility access for Mumble gets disabled on upgrade Trying to run Mumble-1....
mpv Better scaletempo (on high speed x1.5-x3)
@TiGR @wiiaboo I've fine tuned the settings a bit and this is what I got I've been watching some tal...
AudioKit AKMicrophone fails to initialize
Sounds good For anyone else who may be experiencing this issue with this version (4.5.2) ...
eqMac Bug: Driver failed to activate with new version 0.3.2 (beta): still problems
As a workaround I quit eqMac executed this from the Terminal reopend eqMac and allowed it to reinsta...
mpv [Feature request?] Play multiple videos sides by sides
Awesome! “Probably slow” is no issue for me it’s 1000×800@5fps streams that I have ;) Thanks both of...
speech_recognition Install/compilation of PyAudio failed
Tried those apt commands ( I left our libportaudio2 as apt informed me it was already installed) $ s...
tenacity Detach from audacity's repository
I think we should detach Is your feature request related to a problem? Please describe This fork as ...
使用flv.js 播放flv时,出现跨域问题。 在srs_app_http_stream.cpp#485后添加w->header()->set(Access-Control-Allow-Origin ...
srs Disable -Werror for http parser.
You should change the source code: the file http_parser.c in 3rdparty/ change to ...
pulseaudio modules bt Building DEB package
PPA source here I've managed to get a wor...
pulseaudio modules bt PPA Ubuntu 19.10
So more Docker hacking and I have the emulated bluetooth device functioning which results in a worki...
eqMac Beta eqMac2 v2.3 - possible fix for static/sync loss and Catalina install issue
@andrewmorner Had exact same problem Looks like more of the liscio ring buffer code needed to be cop...
sonic pi Mac OS 11.0.1 Big Sur (not loading)
Hi @duncangeere! I traced back the behaviour the week before last in my Big Sur test VM to a specifi...
mpv [Request] Hotkey to copy currently displayed subtitles text to clipboard
Linux: (needs xclip to be installed) add the following to ~/.config/mpv/input.conf Ctrl+c run /bin/b...
aeneas /usr/bin/ld: cannot find -lespeak
Thanks for the tip frish1 This installation solved my install failure Installing espeak wasn't enoug...
audioplayers E/MediaPlayerNative( 6767): error (1, -2147483648)
Currently having the same issue pub upgrade not working for me I am using AudioCache to play every 1...
qTox Choosing camera in settings causing qTox to crashing
Hey guys I was pointed to issues with your project in the MSDN forum thread linked above and I decid...
snapcast [Question] JSON RPC API
curl didn't work for me Hi I don't really understand how to remotely get or set the status or volume...
snapcast Snapclient with multiple audio hardware
@gerroon I am sorry that it does not work for you! Let me summarize what I did to make it work Maybe...
audioplayers update path_provider dependency version
A quirky and potentially hazardous fix until it is solved: Need to update the version of path_provid...
mpv DTS/AC3 passthrough via coax S/PDIF
I would like to add that you can force the output of the lavcac3enc filter to be passthrough to the ...
Google Play Music Desktop Player UNOFFICIAL Stuck on "Loading music library"
Fix available (for Windows at least): Install 7zip (at your own risk) Install Asar7z (at your own ri...
spotify downloader ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] on Ubuntu 18.04.1
I had a similar problem on one of my Linux machines What is the purpose of your issue? Script won't ...
spotify downloader Can't figure out how to run it...
i had the same problem today on my Linux : maybe that's not the same problem/issue here but may help...
scdl HTTPError: 401 Client Error: Unauthorized for url
I also have this error but this fixed it: Have used scdl flawlessly before but now seem to be gettin...
Tone.js AudioContext "not allowed to start"
a simple solution is to add this: inside your mousedown listener System: Windows 10.0.16299 Pro x64 ...
spotify downloader Download Error "as no match could be found on youtube"
I'm working on a fix on my fork( and will make PR when ...
spotify downloader urllib.error.HTTPError: Getting 404 Not Found
I've tried to use this fix just replace the old from pytube with this code and it works for ...
spotify downloader mutagen.MutagenError: [Errno 2] No such file or directory: 'song.mp3'
I've released v1.2.1! Update your installation with: and everything should work properly now. ...