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Starting mpd-mpris segfaults mpd since mpd/0.22.10 #27

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tsweet64 opened this issue Aug 10, 2021 · 9 comments
Closed

Starting mpd-mpris segfaults mpd since mpd/0.22.10 #27

tsweet64 opened this issue Aug 10, 2021 · 9 comments
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bug Something isn't working help wanted Extra attention is needed

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@tsweet64
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This is on Arch with mpd version 0.22.10 and mpd-mpris 0.3.1. When mpd-mpris is started, both mpd and mpd-mpris crash. mpd-mpris outputs the following:

2021/08/09 21:02:35 local mpd socket found. using that!
2021/08/09 21:02:36 EOF
2021/08/09 21:02:36 mpd-mpris running
panic: connection to mpd is severed: write unix @->/run/user/1000/mpd/socket: write: broken pipe

goroutine 34 [running]:
github.com/natsukagami/mpd-mpris.(*Instance).transformErr(0xc0000a6930, 0x660f80, 0xc00000f8a8, 0x0)
        /home/tim/.cache/paru/clone/mpd-mpris/src/mpd-mpris-0.3.1/errors.go:17 +0x2d9
github.com/natsukagami/mpd-mpris.(*Status).Update(0xc000140008, 0xc000140000, 0x0)
        /home/tim/.cache/paru/clone/mpd-mpris/src/mpd-mpris-0.3.1/player.go:107 +0xc5f
github.com/natsukagami/mpd-mpris.(*Player).createStatus.func1(0xc000140000)
        /home/tim/.cache/paru/clone/mpd-mpris/src/mpd-mpris-0.3.1/player.go:268 +0xc5
created by github.com/natsukagami/mpd-mpris.(*Player).createStatus
        /home/tim/.cache/paru/clone/mpd-mpris/src/mpd-mpris-0.3.1/player.go:264 +0x3f0

And the following occurs with mpd:

Aug 09 20:55:16 ArchDesktop audit[50993]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=3 pid=50993 comm="mpd" exe="/usr/bin/mpd" sig=11 res=1
Aug 09 20:55:16 ArchDesktop kernel: mpd[50993]: segfault at 0 ip 000055960248c0b8 sp 00007ffd175f9a10 error 4 in mpd[55960246d000+ec000]
Aug 09 20:55:16 ArchDesktop kernel: Code: 8b 3c 24 48 8b 58 20 ff 15 2d 92 13 00 48 8b 14 24 4c 89 ff 48 89 c6 ff d3 48 89 04 24 48 85 c0 74 1a 48 8b 58 10 0f 1f 40 00 <80> 3b 2e 74 73 49 8b 07 48 8b 34 24 4c 8>
Aug 09 20:55:16 ArchDesktop kernel: audit: type=1701 audit(1628560516.898:458): auid=1000 uid=1000 gid=1000 ses=3 pid=50993 comm="mpd" exe="/usr/bin/mpd" sig=11 res=1
Aug 09 20:55:16 ArchDesktop audit: BPF prog-id=79 op=LOAD
Aug 09 20:55:16 ArchDesktop audit: BPF prog-id=80 op=LOAD
Aug 09 20:55:16 ArchDesktop kernel: audit: type=1334 audit(1628560516.919:459): prog-id=79 op=LOAD
Aug 09 20:55:16 ArchDesktop kernel: audit: type=1334 audit(1628560516.919:460): prog-id=80 op=LOAD
Aug 09 20:55:16 ArchDesktop kernel: audit: type=1334 audit(1628560516.920:461): prog-id=81 op=LOAD
Aug 09 20:55:16 ArchDesktop audit: BPF prog-id=81 op=LOAD
Aug 09 20:55:16 ArchDesktop systemd[1]: Started Process Core Dump (PID 80825/UID 0).
Aug 09 20:55:16 ArchDesktop kernel: audit: type=1130 audit(1628560516.920:462): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@13-80825-0 comm="systemd" exe="/usr/lib/systemd/systemd" hos>
Aug 09 20:55:16 ArchDesktop audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@13-80825-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? re>
Aug 09 20:55:17 ArchDesktop systemd-coredump[80826]: [🡕] Process 50993 (mpd) of user 1000 dumped core.
                                                     
                                                     Found module linux-vdso.so.1 with build-id: 44f28c9939040f40a3cfe3a646670c2ab66f3891
                                                     
[big long list of modules, let me know if it is needed]

                                                     Stack trace of thread 50993:
                                                     #0  0x000055960248c0b8 n/a (mpd + 0x4b0b8)
                                                     #1  0x000055960248ad2e n/a (mpd + 0x49d2e)
                                                     #2  0x0000559602496852 n/a (mpd + 0x55852)
                                                     #3  0x00005596024c1019 n/a (mpd + 0x80019)
                                                     #4  0x00005596024c1275 n/a (mpd + 0x80275)
                                                     #5  0x00005596024c2191 n/a (mpd + 0x81191)
                                                     #6  0x00005596024910c3 n/a (mpd + 0x500c3)
                                                     #7  0x0000559602492240 n/a (mpd + 0x51240)
                                                     #8  0x0000559602487f4c n/a (mpd + 0x46f4c)
                                                     #9  0x00007f50632d9b25 __libc_start_main (libc.so.6 + 0x27b25)
                                                     #10 0x000055960248823e n/a (mpd + 0x4723e)
                                                     
                                                     Stack trace of thread 50995:
                                                     #0  0x00007f50633b092e epoll_wait (libc.so.6 + 0xfe92e)
                                                     #1  0x00005596024c20ed n/a (mpd + 0x810ed)
                                                     #2  0x00005596024bd684 n/a (mpd + 0x7c684)
                                                     #3  0x00007f5063487259 start_thread (libpthread.so.0 + 0x9259)
                                                     #4  0x00007f50633b05e3 __clone (libc.so.6 + 0xfe5e3)
                                                     
                                                     Stack trace of thread 50996:
                                                     #0  0x00007f50634938ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                                                     #1  0x00007f506348d270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                                                     #2  0x00007f50636ccf01 __gthread_cond_wait (libstdc++.so.6 + 0xccf01)
                                                     #3  0x00005596024a62b2 n/a (mpd + 0x652b2)
                                                     #4  0x00005596024bd684 n/a (mpd + 0x7c684)
                                                     #5  0x00007f5063487259 start_thread (libpthread.so.0 + 0x9259)
                                                     #6  0x00007f50633b05e3 __clone (libc.so.6 + 0xfe5e3)
                                                     
                                                     Stack trace of thread 50997:
                                                     #0  0x00007f50634938ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                                                     #1  0x00007f506348d270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                                                     #2  0x00007f50636ccf01 __gthread_cond_wait (libstdc++.so.6 + 0xccf01)
                                                     #3  0x0000559602494d4d n/a (mpd + 0x53d4d)
                                                     #4  0x000055960249e218 n/a (mpd + 0x5d218)
                                                     #5  0x0000559602510c6e n/a (mpd + 0xcfc6e)
                                                     #6  0x0000559602493ba2 n/a (mpd + 0x52ba2)
                                                     #7  0x000055960249d108 n/a (mpd + 0x5c108)
                                                     #8  0x000055960249da5b n/a (mpd + 0x5ca5b)
                                                     #9  0x00005596024bd684 n/a (mpd + 0x7c684)
                                                     #10 0x00007f5063487259 start_thread (libpthread.so.0 + 0x9259)
                                                     #11 0x00007f50633b05e3 __clone (libc.so.6 + 0xfe5e3)
                                                     
                                                     Stack trace of thread 51002:
                                                     #0  0x00007f50633a5b2f __poll (libc.so.6 + 0xf3b2f)
                                                     #1  0x00007f50657f4ae4 n/a (libpulse.so.0 + 0x33ae4)
                                                     #2  0x00007f50657de4b9 pa_mainloop_poll (libpulse.so.0 + 0x1d4b9)
                                                     #3  0x00007f50657e8709 pa_mainloop_iterate (libpulse.so.0 + 0x27709)
...skipping...
                                                     #8  0x000055960249da5b n/a (mpd + 0x5ca5b)
                                                     #9  0x00005596024bd684 n/a (mpd + 0x7c684)
                                                     #10 0x00007f5063487259 start_thread (libpthread.so.0 + 0x9259)
                                                     #11 0x00007f50633b05e3 __clone (libc.so.6 + 0xfe5e3)
                                                     
                                                     Stack trace of thread 51002:
                                                     #0  0x00007f50633a5b2f __poll (libc.so.6 + 0xf3b2f)
                                                     #1  0x00007f50657f4ae4 n/a (libpulse.so.0 + 0x33ae4)
                                                     #2  0x00007f50657de4b9 pa_mainloop_poll (libpulse.so.0 + 0x1d4b9)
                                                     #3  0x00007f50657e8709 pa_mainloop_iterate (libpulse.so.0 + 0x27709)
                                                     #4  0x00007f50657e87c1 pa_mainloop_run (libpulse.so.0 + 0x277c1)
                                                     #5  0x00007f50657f8c9e n/a (libpulse.so.0 + 0x37c9e)
                                                     #6  0x00007f50545a7403 n/a (libpulsecommon-15.0.so + 0x5c403)
                                                     #7  0x00007f5063487259 start_thread (libpthread.so.0 + 0x9259)
                                                     #8  0x00007f50633b05e3 __clone (libc.so.6 + 0xfe5e3)
                                                     
                                                     Stack trace of thread 55772:
                                                     #0  0x00007f50634938ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                                                     #1  0x00007f506348d270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                                                     #2  0x00007f50636ccf01 __gthread_cond_wait (libstdc++.so.6 + 0xccf01)
                                                     #3  0x00005596024edbaf n/a (mpd + 0xacbaf)
                                                     #4  0x00005596024bd684 n/a (mpd + 0x7c684)
                                                     #5  0x00007f5063487259 start_thread (libpthread.so.0 + 0x9259)
                                                     #6  0x00007f50633b05e3 __clone (libc.so.6 + 0xfe5e3)
                                                     
                                                     Stack trace of thread 51001:
                                                     #0  0x00007f50634938ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                                                     #1  0x00007f506348d842 pthread_cond_clockwait (libpthread.so.0 + 0xf842)
                                                     #2  0x00005596024ed3b3 n/a (mpd + 0xac3b3)
                                                     #3  0x00005596024ed89e n/a (mpd + 0xac89e)
                                                     #4  0x00005596024bd684 n/a (mpd + 0x7c684)
                                                     #5  0x00007f5063487259 start_thread (libpthread.so.0 + 0x9259)
                                                     #6  0x00007f50633b05e3 __clone (libc.so.6 + 0xfe5e3)
                                                     
                                                     Stack trace of thread 50998:
                                                     #0  0x0000000000000000 n/a (n/a + 0x0)
                                                     #1  0x00007ffd00000005 n/a (n/a + 0x0)
Aug 09 20:55:17 ArchDesktop systemd[1]: systemd-coredump@13-80825-0.service: Deactivated successfully.

Any ideas what could be causing this and how to fix it? Thanks for this project btw!
@natsukagami
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I currently don't have a Linux box available to me at the moment (will do in a month); but I think this happened once before with an older version of mpd

@samhh
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samhh commented Aug 11, 2021

For the avoidance of doubt I can confirm that I'm seeing the same on Arch with the same versions.

@natsukagami natsukagami added bug Something isn't working help wanted Extra attention is needed labels Aug 12, 2021
@tsweet64
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It might be related to MusicPlayerDaemon/MPD#1224 / MusicPlayerDaemon/MPD#1225

@natsukagami
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natsukagami commented Aug 16, 2021 via email •
edited

@Ram-Z
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Ram-Z commented Aug 16, 2021

I can't speak for mpd-mpris, but I was seeing this issue when my own crudely written mpd client tried to access mpd and requested albumart. If mpd-mpris is attempting to get albumart, it might be running into the same issue.

If you're on Arch, you may try this PKGBUILD of mpd with the patch applied. mpd-0.22.10-2.src.tar.gz

@natsukagami
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If mpd-mpris is attempting to get albumart, it might be running into the same issue.

As of v0.3.0 mpd-mpris does use albumart to attempt to pull the album art for display.

@natsukagami
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If someone can confirm that mpd and mpd-mpris doesn't crash with the patch applied, I can happily close the issue :)

@samhh
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samhh commented Aug 16, 2021

The patch via @Ram-Z's PKGBUILD has fixed the issue for me 🎊

@natsukagami
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Great! Closing the issue then. Future readers, please checkout MusicPlayerDaemon/MPD#1225, MusicPlayerDaemon/MPD#1227 and @Ram-Z's patch above.

@GK-774 GK-774 mentioned this issue Aug 17, 2021
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@Ram-Z @samhh @natsukagami @tsweet64