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Audio driver crash on quit - fluidsynth/SDL #7337

nikolas opened this issue Mar 7, 2019 · 4 comments

Audio driver crash on quit - fluidsynth/SDL #7337

nikolas opened this issue Mar 7, 2019 · 4 comments


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@nikolas nikolas commented Mar 7, 2019

Version of OpenTTD

master (3d4736c)

Expected result

No crash on quit

Actual result

fluidsynth: warning: Failed to pin the sample data to RAM; swapping is possible.
^CCrash encountered, generating crash log...
*** OpenTTD Crash Report ***

Crash at: Thu Mar 7 01:52:15 2019
In game date: 1960-01-04 (49) 

Crash reason:
Signal: Segmentation fault (11)
Message: <none>

OpenTTD version:
Version: 20190306-master-g3d4736cedd (0)
NewGRF ver: 1a006d64
Bits: 64
Endian: little
Dedicated: no
Build date: Mar 6 2019 19:48:56

[00] ./bin/openttd-sdl1.2(_ZNK12CrashLogUnix13LogStacktraceEPcPKc+0x40) [0x5586e36a5bb0]
[01] ./bin/openttd-sdl1.2(_ZNK8CrashLog12FillCrashLogEPcPKc+0xf0) [0x5586e3574390]
[02] ./bin/openttd-sdl1.2(_ZNK8CrashLog12MakeCrashLogEv+0x63) [0x5586e3574613]
[03] ./bin/openttd-sdl1.2(+0x389ad5) [0x5586e36a5ad5]
[04] /lib/x86_64-linux-gnu/ [0x7f04120e4940]
[05] /usr/lib/x86_64-linux-gnu/ [0x7f04125a35f0]
[06] /usr/lib/x86_64-linux-gnu/ [0x7f04125a2db7]
[07] /usr/lib/x86_64-linux-gnu/ [0x7f04125a9245]
[08] ./bin/openttd-sdl1.2(+0x2fbed1) [0x5586e3617ed1]
[09] ./bin/openttd-sdl1.2(_Z12MxMixSamplesPvj+0x8a) [0x5586e3615a2a]
[10] /usr/lib/x86_64-linux-gnu/ [0x7f0412df18ba]
[11] /usr/lib/x86_64-linux-gnu/ [0x7f0412dfaf28]
[12] /usr/lib/x86_64-linux-gnu/ [0x7f0412e3a0d9]
[13] /lib/x86_64-linux-gnu/ [0x7f0412e87fa3]
[14] /lib/x86_64-linux-gnu/ [0x7f04121a680f]

Operating system: 
Name: Linux
Release: 4.19.0-2-amd64 
Version: #1 SMP Debian 4.19.16-1 (2019-01-17) 
Machine: x86_64
Compiler: GCC 8.2.0 "8.2.0"

Blitter: 32bpp-sse2-anim
Graphics set: original_windows (0) 
Language: /home/nik/src/OpenTTD/bin/lang/english_US.lng
Music driver: fluidsynth
Music set: OpenMSX (96) 
Network: no 
Sound driver: sdl 
Sound set: original_windows (0)
Video driver: sdl

Small: sprite
Medium: sprite
Large: sprite
Mono: sprite

AI Configuration (local: 0):
0: Human

FontConfig: 2.13.1
FreeType: 2.9.1
LZMA: 5.2.4
LZO: 2.10
PNG: 1.6.36
SDL: 1.2.15
Zlib: 1.2.11

---- gamelog start ----
Tick 0: new game started
Revision text changed to g3d4736cedda5f, savegame version 208, not modified, _openttd_newgrf_version = 0x1a006d64 
New game mode: 1 landscape: 0
---- gamelog end ----

Recent news messages:

*** End of OpenTTD Crash Report ***

Crash log generated.

Writing crash log to disk...
Crash log written to /home/nik/.openttd/crash.log. Please add this file to any bug reports. 

Writing crash savegame...
Crash savegame written to /home/nik/.openttd/crash.sav. Please add this file and the last (auto)save to any bug reports. 

Writing crash screenshot...
Crash screenshot written to /home/nik/.openttd/crash.png. Please add this file to any bug reports. 

Segmentation fault

Steps to reproduce

It's kind of tricky to reproduce, but I can reproduce this crash with following these steps, done quickly, using OpenMSX:

  • Start OpenTTD, start new game with default options
  • Open sound/music window
  • Lower music volume to half
  • Open "quit game" dialog
  • Raise music volume to full
  • Confirm the quit game dialog


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@nielsmh nielsmh commented Mar 7, 2019

Maybe _midi.synth needs to be NULLed after delete here? And possibly a mutex needs to be added around some of all the global objects.

void MusicDriver_FluidSynth::Stop()

@nielsmh nielsmh self-assigned this Mar 7, 2019
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@nielsmh nielsmh commented Mar 30, 2019

I had the same crash happen to me just now. Haven't tested yet how often it occurs.

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@LordAro LordAro commented Feb 16, 2020

@nielsmh Did you make any further progress with this? Seems like it could be an easy fix...

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@nielsmh nielsmh commented Feb 17, 2020

Might even be fixed by the changed made in #7983, since this is most likely caused by a race condition.

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