Bug#877289: pulseaudio: core-util.c failed to acquire high-priority scheduling
bug.reporter at mail.sheugh.com
bug.reporter at mail.sheugh.com
Sat Sep 30 07:44:54 UTC 2017
Package: pulseaudio
Version: 10.0-1+deb9u1
Severity: normal
Dear Maintainer,
I upgraded from jessie to stretch and find that the
"stable" system is a lot less stable than before, I'll
get to systemd eventually, but I had to deal with minor
issues like pulseaudio taking about 20 minutes to start,
and other problems reported in the logs. Systemctl reports other
failures I have to resolve, but pulseaudio is the start.
After searching for solutions on the internet, I
ran $ pulseaudio -vvvv with this line in the output (among others)
core-util.c failed to acquire high-priority scheduling
The full message is this :
$ pulseaudio -vvvv
I: [pulseaudio] main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operation not permitted
I: [pulseaudio] main.c: setrlimit(RLIMIT_RTPRIO, (9, 9)) failed: Operation not permitted
D: [pulseaudio] core-rtclock.c: Timer slack is set to 50 us.
I: [pulseaudio] core-util.c: Failed to acquire high-priority scheduling: Input/output error
I: [pulseaudio] main.c: This is PulseAudio 10.0
D: [pulseaudio] main.c: Compilation host: x86_64-pc-linux-gnu
D: [pulseaudio] main.c: Compilation CFLAGS: -g -O2 -fdebug-prefix-map=/build/pulseaudio-ZMrhzG/pulseaudio-10.0=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -W -Wextra -pipe -Wno-long-long -Wno-overlength-strings -Wunsafe-loop-optimizations -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security -Wmissing-include-dirs -Wformat-nonliteral -Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal -Wmissing-prototypes -Wredundant-decls -Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align -Wstrict-aliasing -Wwrite-strings -Wno-unused-parameter -ffast-math -fno-common -fdiagnostics-show-option -fdiagnostics-color=auto
D: [pulseaudio] main.c: Running on host: Linux x86_64 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u5 (2017-09-19)
D: [pulseaudio] main.c: Found 4 CPUs.
I: [pulseaudio] main.c: Page size is 4096 bytes
D: [pulseaudio] main.c: Compiled with Valgrind support: no
D: [pulseaudio] main.c: Running in valgrind mode: no
D: [pulseaudio] main.c: Running in VM: no
D: [pulseaudio] main.c: Optimized build: yes
D: [pulseaudio] main.c: FASTPATH defined, only fast path asserts disabled.
I: [pulseaudio] main.c: Machine ID is .
I: [pulseaudio] main.c: Using runtime directory .
I: [pulseaudio] main.c: Using state directory .
I: [pulseaudio] main.c: Using modules directory /usr/lib/pulse-10.0/modules.
I: [pulseaudio] main.c: Running in system mode: no
E: [pulseaudio] pid.c: Daemon already running.
E: [pulseaudio] main.c: pa_pid_file_create() failed.
Taking advice, I added the following to /etc/security/limits.conf
@audio - rtprio 99
@audio - nice -20
@audio - memlock 4000000
@pulse-rt - rtprio 99
@pulse-rt - nice -15
I now get this after a reboot:
$ pulseaudio -vvvv
D: [pulseaudio] core-rtclock.c: Timer slack is set to 50 us.
D: [pulseaudio] core-util.c: setpriority() worked.
I: [pulseaudio] core-util.c: Successfully gained nice level -11.
I: [pulseaudio] main.c: This is PulseAudio 10.0
D: [pulseaudio] main.c: Compilation host: x86_64-pc-linux-gnu
D: [pulseaudio] main.c: Compilation CFLAGS: -g -O2 -fdebug-prefix-map=/build/pulseaudio-ZMrhzG/pulseaudio-10.0=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -W -Wextra -pipe -Wno-long-long -Wno-overlength-strings -Wunsafe-loop-optimizations -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security -Wmissing-include-dirs -Wformat-nonliteral -Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal -Wmissing-prototypes -Wredundant-decls -Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align -Wstrict-aliasing -Wwrite-strings -Wno-unused-parameter -ffast-math -fno-common -fdiagnostics-show-option -fdiagnostics-color=auto
D: [pulseaudio] main.c: Running on host: Linux x86_64 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u5 (2017-09-19)
D: [pulseaudio] main.c: Found 4 CPUs.
I: [pulseaudio] main.c: Page size is 4096 bytes
D: [pulseaudio] main.c: Compiled with Valgrind support: no
D: [pulseaudio] main.c: Running in valgrind mode: no
D: [pulseaudio] main.c: Running in VM: no
D: [pulseaudio] main.c: Optimized build: yes
D: [pulseaudio] main.c: FASTPATH defined, only fast path asserts disabled.
I: [pulseaudio] main.c: Machine ID is .
I: [pulseaudio] main.c: Session ID is 1.
I: [pulseaudio] main.c: Using runtime .
I: [pulseaudio] main.c: Using state directory .
I: [pulseaudio] main.c: Using modules directory /usr/lib/pulse-10.0/modules.
I: [pulseaudio] main.c: Running in system mode: no
E: [pulseaudio] pid.c: Daemon already running.
E: [pulseaudio] main.c: pa_pid_file_create() failed.
It looks like a bug in the source code in this line:
I: [pulseaudio] main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operation not permitted
I haven't checked to see if this is resolved in later versions of pulseaudio.
HopeThisHelps
-- Package-specific info:
File '/etc/default/pulseaudio' does not exist
-- System Information:
Debian Release: 9.1
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.9.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages pulseaudio depends on:
pn adduser <none>
pn libasound2 <none>
pn libasound2-plugins <none>
pn libc6 <none>
pn libcap2 <none>
pn libdbus-1-3 <none>
ii libgcc1 1:6.3.0-18
pn libice6 <none>
pn libltdl7 <none>
pn liborc-0.4-0 <none>
pn libpulse0 <none>
pn libsm6 <none>
pn libsndfile1 <none>
pn libsoxr0 <none>
pn libspeexdsp1 <none>
ii libstdc++6 6.3.0-18
pn libsystemd0 <none>
pn libtdb1 <none>
pn libudev1 <none>
pn libwebrtc-audio-processing1 <none>
pn libx11-6 <none>
pn libx11-xcb1 <none>
pn libxcb1 <none>
pn libxtst6 <none>
pn lsb-base <none>
pn pulseaudio-utils <none>
Versions of packages pulseaudio recommends:
ii rtkit 0.11-4+b1
Versions of packages pulseaudio suggests:
pn paman <none>
pn paprefs <none>
pn pavucontrol <none>
pn pavumeter <none>
pn udev <none>
-- no debconf information
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