Fix for OpenMP thread affinity crashes on Android devices#1521
Merged
derselbst merged 4 commits intoFluidSynth:masterfrom Apr 9, 2025
Merged
Fix for OpenMP thread affinity crashes on Android devices#1521derselbst merged 4 commits intoFluidSynth:masterfrom
derselbst merged 4 commits intoFluidSynth:masterfrom
Conversation
|
derselbst
approved these changes
Mar 29, 2025
Member
derselbst
left a comment
There was a problem hiding this comment.
Excellent finding, thanks! I moved your code to fluid_synth_init(), which will be executed before the first synth instance is created. This will ensure the workaround getting applied, no matter how people are using fluidsynth (i.e. executable vs. via API only).
Feel free to test it. Android binaries will shortly become available here: https://dev.azure.com/tommbrt/tommbrt/_build/results?buildId=12127&view=artifacts&pathAsName=false&type=publishedArtifacts
dangowrt
added a commit
to dangowrt/packages
that referenced
this pull request
Apr 26, 2025
fluidsynth 2.4.5
Prebuilt Windows Binaries were missing SDL3.dll
(FluidSynth/fluidsynth#1510)
Fix SDL3 intercepting signals, causing CTRL+C to not quit fluidsynth
(FluidSynth/fluidsynth#1509)
Fix a few flaws in the AWE32 NRPN implementation
(FluidSynth/fluidsynth#1452, FluidSynth/fluidsynth#1473)
A regression introduced in 2.4.4 broke drum preset selection for XG
MIDIs (FluidSynth/fluidsynth#1508)
Fix for OpenMP thread affinity crashes on Android devices
(FluidSynth/fluidsynth#1521, thanks to @looechao)
Fix fluidsynth's systemd user daemon being unable to create lock
file on some distros (FluidSynth/fluidsynth#1527, thanks to
@andrew-sayers)
Fix fluidsynth ignoring initialFilterFc generator limits
(FluidSynth/fluidsynth#1502)
A regression introduced in 2.3.6 prevented SF2 NRPN messages from
being processed correctly (FluidSynth/fluidsynth#1536)
fluidsynth 2.4.4
Support for SDL3 has been added, support for SDL2 has been
deprecated (FluidSynth/fluidsynth#1485, FluidSynth/fluidsynth#openwrt#1478,
thanks to @andyvand)
Soundfonts that are not respecting the 46 zero-sample padding-space
previously sounded incorrect when
synth.dynamic-sample-loading was active (FluidSynth/fluidsynth#1484)
Allow drum channels to profit from Soundfont Bank Offsets by no
longer ignoring MSB Bank changes (FluidSynth/fluidsynth#1475)
Revise the preset fallback logic for drum channels
(FluidSynth/fluidsynth#1486)
A regression introduced in 2.4.1 may have caused interrupted
real-time playback when voices were using the lowpass filter
(FluidSynth/fluidsynth#1481)
Improve multi-user experience when running fluidsynth as systemd
service (FluidSynth/fluidsynth#1491, thanks to @andrew-sayers)
Fix ordering and dependencies of fluidsynth's systemd service
(FluidSynth/fluidsynth#1500, thanks to @fabiangreffrath)
Revise fluidsynth's man page (FluidSynth/fluidsynth#1499, thanks to
@fabiangreffrath)
fluidsynth 2.4.3
It was discovered, that exclusive class note terminations were too
slow (FluidSynth/fluidsynth#1467, thanks to @mrbumpy409)
Fix a regression introduced in 2.4.0 that allowed the amplitude of a
voice playing in delay phase to rise infinitely
(FluidSynth/fluidsynth#1451)
MSGS drum-style note-cut has been converted to an opt-in setting
synth.note-cut (FluidSynth/fluidsynth#1466)
Support for SDL2 has been disabled by default*
(FluidSynth/fluidsynth#1472)
Fix a regression introduced in 2.4.1 that could have caused infinite
audio gain output for some MIDI files under certain configurations
(FluidSynth/fluidsynth#1464)
Silence a warning issued by Systemd v254+
(FluidSynth/fluidsynth#1474, thanks to @andrew-sayers)
fluidsynth 2.4.2
Fix audible clicks when turning off voices while using a high filter
resonance (FluidSynth/fluidsynth#1427)
Fix a build failure with MSYS2 and MinGW when processing
VersionResource.rc (FluidSynth/fluidsynth#1448, thanks to @pedrolcl)
Fix a crash on startup when there are no MIDI devices available on
Windows (FluidSynth/fluidsynth#1446, thanks to @pedrolcl)
Restore discovery of libsndfile (FluidSynth/fluidsynth#1445)
Fix a race condition when loading SF3 files containing multiple
uncompressed samples (FluidSynth/fluidsynth#1457)
fluidsynth 2.4.1
Enable libsndfile to use filename with non-ASCII characters on
Windows (FluidSynth/fluidsynth#1416, thanks to @pedrolcl and
@stardusteyes)
Fix a few commandline encoding related issues on Windows
(FluidSynth/fluidsynth#1388, FluidSynth/fluidsynth#openwrt#1421, thanks to
@pedrolcl)
Fix build errors on Windows (FluidSynth/fluidsynth#1419,
FluidSynth/fluidsynth#openwrt#1422, thanks to @carlo-bramini)
Fix clicks and pops caused when changing parameters of the lowpass
filter (FluidSynth/fluidsynth#1415, FluidSynth/fluidsynth#openwrt#1417,
FluidSynth/fluidsynth#openwrt#1424)
Minor adjustment to AWE32 NRPN behavior (FluidSynth/fluidsynth#1430)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
dangowrt
added a commit
to dangowrt/packages
that referenced
this pull request
Apr 26, 2025
fluidsynth 2.4.5
Prebuilt Windows Binaries were missing SDL3.dll
(FluidSynth/fluidsynth#1510)
Fix SDL3 intercepting signals, causing CTRL+C to not quit fluidsynth
(FluidSynth/fluidsynth#1509)
Fix a few flaws in the AWE32 NRPN implementation
(FluidSynth/fluidsynth#1452, FluidSynth/fluidsynth#1473)
A regression introduced in 2.4.4 broke drum preset selection for XG
MIDIs (FluidSynth/fluidsynth#1508)
Fix for OpenMP thread affinity crashes on Android devices
(FluidSynth/fluidsynth#1521, thanks to @looechao)
Fix fluidsynth's systemd user daemon being unable to create lock
file on some distros (FluidSynth/fluidsynth#1527, thanks to
@andrew-sayers)
Fix fluidsynth ignoring initialFilterFc generator limits
(FluidSynth/fluidsynth#1502)
A regression introduced in 2.3.6 prevented SF2 NRPN messages from
being processed correctly (FluidSynth/fluidsynth#1536)
fluidsynth 2.4.4
Support for SDL3 has been added, support for SDL2 has been
deprecated (FluidSynth/fluidsynth#1485, FluidSynth/fluidsynth#1478,
thanks to @andyvand)
Soundfonts that are not respecting the 46 zero-sample padding-space
previously sounded incorrect when
synth.dynamic-sample-loading was active (FluidSynth/fluidsynth#1484)
Allow drum channels to profit from Soundfont Bank Offsets by no
longer ignoring MSB Bank changes (FluidSynth/fluidsynth#1475)
Revise the preset fallback logic for drum channels
(FluidSynth/fluidsynth#1486)
A regression introduced in 2.4.1 may have caused interrupted
real-time playback when voices were using the lowpass filter
(FluidSynth/fluidsynth#1481)
Improve multi-user experience when running fluidsynth as systemd
service (FluidSynth/fluidsynth#1491, thanks to @andrew-sayers)
Fix ordering and dependencies of fluidsynth's systemd service
(FluidSynth/fluidsynth#1500, thanks to @fabiangreffrath)
Revise fluidsynth's man page (FluidSynth/fluidsynth#1499, thanks to
@fabiangreffrath)
fluidsynth 2.4.3
It was discovered, that exclusive class note terminations were too
slow (FluidSynth/fluidsynth#1467, thanks to @mrbumpy409)
Fix a regression introduced in 2.4.0 that allowed the amplitude of a
voice playing in delay phase to rise infinitely
(FluidSynth/fluidsynth#1451)
MSGS drum-style note-cut has been converted to an opt-in setting
synth.note-cut (FluidSynth/fluidsynth#1466)
Support for SDL2 has been disabled by default*
(FluidSynth/fluidsynth#1472)
Fix a regression introduced in 2.4.1 that could have caused infinite
audio gain output for some MIDI files under certain configurations
(FluidSynth/fluidsynth#1464)
Silence a warning issued by Systemd v254+
(FluidSynth/fluidsynth#1474, thanks to @andrew-sayers)
fluidsynth 2.4.2
Fix audible clicks when turning off voices while using a high filter
resonance (FluidSynth/fluidsynth#1427)
Fix a build failure with MSYS2 and MinGW when processing
VersionResource.rc (FluidSynth/fluidsynth#1448, thanks to @pedrolcl)
Fix a crash on startup when there are no MIDI devices available on
Windows (FluidSynth/fluidsynth#1446, thanks to @pedrolcl)
Restore discovery of libsndfile (FluidSynth/fluidsynth#1445)
Fix a race condition when loading SF3 files containing multiple
uncompressed samples (FluidSynth/fluidsynth#1457)
fluidsynth 2.4.1
Enable libsndfile to use filename with non-ASCII characters on
Windows (FluidSynth/fluidsynth#1416, thanks to @pedrolcl and
@stardusteyes)
Fix a few commandline encoding related issues on Windows
(FluidSynth/fluidsynth#1388, FluidSynth/fluidsynth#1421, thanks to
@pedrolcl)
Fix build errors on Windows (FluidSynth/fluidsynth#1419,
FluidSynth/fluidsynth#1422, thanks to @carlo-bramini)
Fix clicks and pops caused when changing parameters of the lowpass
filter (FluidSynth/fluidsynth#1415, FluidSynth/fluidsynth#1417,
FluidSynth/fluidsynth#1424)
Minor adjustment to AWE32 NRPN behavior (FluidSynth/fluidsynth#1430)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
dangowrt
added a commit
to openwrt/packages
that referenced
this pull request
Apr 26, 2025
fluidsynth 2.4.5
Prebuilt Windows Binaries were missing SDL3.dll
(FluidSynth/fluidsynth#1510)
Fix SDL3 intercepting signals, causing CTRL+C to not quit fluidsynth
(FluidSynth/fluidsynth#1509)
Fix a few flaws in the AWE32 NRPN implementation
(FluidSynth/fluidsynth#1452, FluidSynth/fluidsynth#1473)
A regression introduced in 2.4.4 broke drum preset selection for XG
MIDIs (FluidSynth/fluidsynth#1508)
Fix for OpenMP thread affinity crashes on Android devices
(FluidSynth/fluidsynth#1521, thanks to @looechao)
Fix fluidsynth's systemd user daemon being unable to create lock
file on some distros (FluidSynth/fluidsynth#1527, thanks to
@andrew-sayers)
Fix fluidsynth ignoring initialFilterFc generator limits
(FluidSynth/fluidsynth#1502)
A regression introduced in 2.3.6 prevented SF2 NRPN messages from
being processed correctly (FluidSynth/fluidsynth#1536)
fluidsynth 2.4.4
Support for SDL3 has been added, support for SDL2 has been
deprecated (FluidSynth/fluidsynth#1485, FluidSynth/fluidsynth#1478,
thanks to @andyvand)
Soundfonts that are not respecting the 46 zero-sample padding-space
previously sounded incorrect when
synth.dynamic-sample-loading was active (FluidSynth/fluidsynth#1484)
Allow drum channels to profit from Soundfont Bank Offsets by no
longer ignoring MSB Bank changes (FluidSynth/fluidsynth#1475)
Revise the preset fallback logic for drum channels
(FluidSynth/fluidsynth#1486)
A regression introduced in 2.4.1 may have caused interrupted
real-time playback when voices were using the lowpass filter
(FluidSynth/fluidsynth#1481)
Improve multi-user experience when running fluidsynth as systemd
service (FluidSynth/fluidsynth#1491, thanks to @andrew-sayers)
Fix ordering and dependencies of fluidsynth's systemd service
(FluidSynth/fluidsynth#1500, thanks to @fabiangreffrath)
Revise fluidsynth's man page (FluidSynth/fluidsynth#1499, thanks to
@fabiangreffrath)
fluidsynth 2.4.3
It was discovered, that exclusive class note terminations were too
slow (FluidSynth/fluidsynth#1467, thanks to @mrbumpy409)
Fix a regression introduced in 2.4.0 that allowed the amplitude of a
voice playing in delay phase to rise infinitely
(FluidSynth/fluidsynth#1451)
MSGS drum-style note-cut has been converted to an opt-in setting
synth.note-cut (FluidSynth/fluidsynth#1466)
Support for SDL2 has been disabled by default*
(FluidSynth/fluidsynth#1472)
Fix a regression introduced in 2.4.1 that could have caused infinite
audio gain output for some MIDI files under certain configurations
(FluidSynth/fluidsynth#1464)
Silence a warning issued by Systemd v254+
(FluidSynth/fluidsynth#1474, thanks to @andrew-sayers)
fluidsynth 2.4.2
Fix audible clicks when turning off voices while using a high filter
resonance (FluidSynth/fluidsynth#1427)
Fix a build failure with MSYS2 and MinGW when processing
VersionResource.rc (FluidSynth/fluidsynth#1448, thanks to @pedrolcl)
Fix a crash on startup when there are no MIDI devices available on
Windows (FluidSynth/fluidsynth#1446, thanks to @pedrolcl)
Restore discovery of libsndfile (FluidSynth/fluidsynth#1445)
Fix a race condition when loading SF3 files containing multiple
uncompressed samples (FluidSynth/fluidsynth#1457)
fluidsynth 2.4.1
Enable libsndfile to use filename with non-ASCII characters on
Windows (FluidSynth/fluidsynth#1416, thanks to @pedrolcl and
@stardusteyes)
Fix a few commandline encoding related issues on Windows
(FluidSynth/fluidsynth#1388, FluidSynth/fluidsynth#1421, thanks to
@pedrolcl)
Fix build errors on Windows (FluidSynth/fluidsynth#1419,
FluidSynth/fluidsynth#1422, thanks to @carlo-bramini)
Fix clicks and pops caused when changing parameters of the lowpass
filter (FluidSynth/fluidsynth#1415, FluidSynth/fluidsynth#1417,
FluidSynth/fluidsynth#1424)
Minor adjustment to AWE32 NRPN behavior (FluidSynth/fluidsynth#1430)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
BKPepe
pushed a commit
to openwrt/packages
that referenced
this pull request
Sep 13, 2025
fluidsynth 2.4.5
Prebuilt Windows Binaries were missing SDL3.dll
(FluidSynth/fluidsynth#1510)
Fix SDL3 intercepting signals, causing CTRL+C to not quit fluidsynth
(FluidSynth/fluidsynth#1509)
Fix a few flaws in the AWE32 NRPN implementation
(FluidSynth/fluidsynth#1452, FluidSynth/fluidsynth#1473)
A regression introduced in 2.4.4 broke drum preset selection for XG
MIDIs (FluidSynth/fluidsynth#1508)
Fix for OpenMP thread affinity crashes on Android devices
(FluidSynth/fluidsynth#1521, thanks to @looechao)
Fix fluidsynth's systemd user daemon being unable to create lock
file on some distros (FluidSynth/fluidsynth#1527, thanks to
@andrew-sayers)
Fix fluidsynth ignoring initialFilterFc generator limits
(FluidSynth/fluidsynth#1502)
A regression introduced in 2.3.6 prevented SF2 NRPN messages from
being processed correctly (FluidSynth/fluidsynth#1536)
fluidsynth 2.4.4
Support for SDL3 has been added, support for SDL2 has been
deprecated (FluidSynth/fluidsynth#1485, FluidSynth/fluidsynth#1478,
thanks to @andyvand)
Soundfonts that are not respecting the 46 zero-sample padding-space
previously sounded incorrect when
synth.dynamic-sample-loading was active (FluidSynth/fluidsynth#1484)
Allow drum channels to profit from Soundfont Bank Offsets by no
longer ignoring MSB Bank changes (FluidSynth/fluidsynth#1475)
Revise the preset fallback logic for drum channels
(FluidSynth/fluidsynth#1486)
A regression introduced in 2.4.1 may have caused interrupted
real-time playback when voices were using the lowpass filter
(FluidSynth/fluidsynth#1481)
Improve multi-user experience when running fluidsynth as systemd
service (FluidSynth/fluidsynth#1491, thanks to @andrew-sayers)
Fix ordering and dependencies of fluidsynth's systemd service
(FluidSynth/fluidsynth#1500, thanks to @fabiangreffrath)
Revise fluidsynth's man page (FluidSynth/fluidsynth#1499, thanks to
@fabiangreffrath)
fluidsynth 2.4.3
It was discovered, that exclusive class note terminations were too
slow (FluidSynth/fluidsynth#1467, thanks to @mrbumpy409)
Fix a regression introduced in 2.4.0 that allowed the amplitude of a
voice playing in delay phase to rise infinitely
(FluidSynth/fluidsynth#1451)
MSGS drum-style note-cut has been converted to an opt-in setting
synth.note-cut (FluidSynth/fluidsynth#1466)
Support for SDL2 has been disabled by default*
(FluidSynth/fluidsynth#1472)
Fix a regression introduced in 2.4.1 that could have caused infinite
audio gain output for some MIDI files under certain configurations
(FluidSynth/fluidsynth#1464)
Silence a warning issued by Systemd v254+
(FluidSynth/fluidsynth#1474, thanks to @andrew-sayers)
fluidsynth 2.4.2
Fix audible clicks when turning off voices while using a high filter
resonance (FluidSynth/fluidsynth#1427)
Fix a build failure with MSYS2 and MinGW when processing
VersionResource.rc (FluidSynth/fluidsynth#1448, thanks to @pedrolcl)
Fix a crash on startup when there are no MIDI devices available on
Windows (FluidSynth/fluidsynth#1446, thanks to @pedrolcl)
Restore discovery of libsndfile (FluidSynth/fluidsynth#1445)
Fix a race condition when loading SF3 files containing multiple
uncompressed samples (FluidSynth/fluidsynth#1457)
fluidsynth 2.4.1
Enable libsndfile to use filename with non-ASCII characters on
Windows (FluidSynth/fluidsynth#1416, thanks to @pedrolcl and
@stardusteyes)
Fix a few commandline encoding related issues on Windows
(FluidSynth/fluidsynth#1388, FluidSynth/fluidsynth#1421, thanks to
@pedrolcl)
Fix build errors on Windows (FluidSynth/fluidsynth#1419,
FluidSynth/fluidsynth#1422, thanks to @carlo-bramini)
Fix clicks and pops caused when changing parameters of the lowpass
filter (FluidSynth/fluidsynth#1415, FluidSynth/fluidsynth#1417,
FluidSynth/fluidsynth#1424)
Minor adjustment to AWE32 NRPN behavior (FluidSynth/fluidsynth#1430)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit dd8780e)
liudf0716
pushed a commit
to liudf0716/packages
that referenced
this pull request
Oct 23, 2025
fluidsynth 2.4.5
Prebuilt Windows Binaries were missing SDL3.dll
(FluidSynth/fluidsynth#1510)
Fix SDL3 intercepting signals, causing CTRL+C to not quit fluidsynth
(FluidSynth/fluidsynth#1509)
Fix a few flaws in the AWE32 NRPN implementation
(FluidSynth/fluidsynth#1452, FluidSynth/fluidsynth#1473)
A regression introduced in 2.4.4 broke drum preset selection for XG
MIDIs (FluidSynth/fluidsynth#1508)
Fix for OpenMP thread affinity crashes on Android devices
(FluidSynth/fluidsynth#1521, thanks to @looechao)
Fix fluidsynth's systemd user daemon being unable to create lock
file on some distros (FluidSynth/fluidsynth#1527, thanks to
@andrew-sayers)
Fix fluidsynth ignoring initialFilterFc generator limits
(FluidSynth/fluidsynth#1502)
A regression introduced in 2.3.6 prevented SF2 NRPN messages from
being processed correctly (FluidSynth/fluidsynth#1536)
fluidsynth 2.4.4
Support for SDL3 has been added, support for SDL2 has been
deprecated (FluidSynth/fluidsynth#1485, FluidSynth/fluidsynth#1478,
thanks to @andyvand)
Soundfonts that are not respecting the 46 zero-sample padding-space
previously sounded incorrect when
synth.dynamic-sample-loading was active (FluidSynth/fluidsynth#1484)
Allow drum channels to profit from Soundfont Bank Offsets by no
longer ignoring MSB Bank changes (FluidSynth/fluidsynth#1475)
Revise the preset fallback logic for drum channels
(FluidSynth/fluidsynth#1486)
A regression introduced in 2.4.1 may have caused interrupted
real-time playback when voices were using the lowpass filter
(FluidSynth/fluidsynth#1481)
Improve multi-user experience when running fluidsynth as systemd
service (FluidSynth/fluidsynth#1491, thanks to @andrew-sayers)
Fix ordering and dependencies of fluidsynth's systemd service
(FluidSynth/fluidsynth#1500, thanks to @fabiangreffrath)
Revise fluidsynth's man page (FluidSynth/fluidsynth#1499, thanks to
@fabiangreffrath)
fluidsynth 2.4.3
It was discovered, that exclusive class note terminations were too
slow (FluidSynth/fluidsynth#1467, thanks to @mrbumpy409)
Fix a regression introduced in 2.4.0 that allowed the amplitude of a
voice playing in delay phase to rise infinitely
(FluidSynth/fluidsynth#1451)
MSGS drum-style note-cut has been converted to an opt-in setting
synth.note-cut (FluidSynth/fluidsynth#1466)
Support for SDL2 has been disabled by default*
(FluidSynth/fluidsynth#1472)
Fix a regression introduced in 2.4.1 that could have caused infinite
audio gain output for some MIDI files under certain configurations
(FluidSynth/fluidsynth#1464)
Silence a warning issued by Systemd v254+
(FluidSynth/fluidsynth#1474, thanks to @andrew-sayers)
fluidsynth 2.4.2
Fix audible clicks when turning off voices while using a high filter
resonance (FluidSynth/fluidsynth#1427)
Fix a build failure with MSYS2 and MinGW when processing
VersionResource.rc (FluidSynth/fluidsynth#1448, thanks to @pedrolcl)
Fix a crash on startup when there are no MIDI devices available on
Windows (FluidSynth/fluidsynth#1446, thanks to @pedrolcl)
Restore discovery of libsndfile (FluidSynth/fluidsynth#1445)
Fix a race condition when loading SF3 files containing multiple
uncompressed samples (FluidSynth/fluidsynth#1457)
fluidsynth 2.4.1
Enable libsndfile to use filename with non-ASCII characters on
Windows (FluidSynth/fluidsynth#1416, thanks to @pedrolcl and
@stardusteyes)
Fix a few commandline encoding related issues on Windows
(FluidSynth/fluidsynth#1388, FluidSynth/fluidsynth#1421, thanks to
@pedrolcl)
Fix build errors on Windows (FluidSynth/fluidsynth#1419,
FluidSynth/fluidsynth#1422, thanks to @carlo-bramini)
Fix clicks and pops caused when changing parameters of the lowpass
filter (FluidSynth/fluidsynth#1415, FluidSynth/fluidsynth#1417,
FluidSynth/fluidsynth#1424)
Minor adjustment to AWE32 NRPN behavior (FluidSynth/fluidsynth#1430)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit dd8780e)
(cherry picked from commit 8587135)
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Issue
FluidSynth crashes on multiple Android devices (predominantly Xiaomi models) when loading SoundFonts.
These crashes occur when OpenMP attempts to set thread affinity during parallel sample loading in
fluid_defsfont_load_all_sampledata().
Crash stack trace shows failure in KMPNativeAffinity::Mask::set_system_affinity() with EINVAL error.
Root Cause
This is a documented issue in Android NDK's OpenMP implementation. When thread affinity setting fails on certain devices, libomp.so terminates the process instead of handling the error gracefully. The issue (Android NDK #1180) remains unresolved as it's difficult to reproduce. It still affects Xiaomi/Redmi devices.
Solution
Disable KMP_AFFINITY on Android by setting the environment variable early in initialization. This approach is successfully used in other libraries (e.g., Tencent's ncnn).
Affected Devices
References
Note: While setting KMP_AFFINITY=disabled in JNI_OnLoad successfully resolves the crashes in our application, I have not yet verified if placing this setting within FluidSynth's initialization will have the same effect. This issue is raised to bring attention to the problem and propose a potential solution that worked at the application level.