I have no idea what's going on now: pulseaudio doesn't actually hang and
keeps playing audio, but pavucontrol fails to connect.
# pavucontrol
shm_open() failed: No such file or directory
shm_open() failed: No such file or directory
shm_open() failed: No such file or directory
shm_open() failed: No such file or directory
shm_open() failed: No such file or directory
shm_open() failed: No such file or directory
shm_open() failed: No such file or directory
strace shows:
readlink("/proc/self/exe", "/usr/bin/pavucontrol", 99) = 20
open("/etc/machine-id", O_RDONLY|O_CLOEXEC) = 19
fcntl(19, F_GETFD) = 0x1 (flags FD_CLOEXEC)
fstat(19, {st_mode=S_IFREG|0444, st_size=33, ...}) = 0
read(19, "ca5fda75d3e5458682e02384d9bb0707"..., 4096) = 33
close(19) = 0
sendto(10, "\0\0\0027\377\377\377\377\0\0\0\0\0\0\0\0\0\0\0\0", 20,
MSG_NOSIGNAL, NULL, 0) = 20
sendto(10, "L\0\0\0\tL\0\0\0\1Ptapplication.name\0L\0\0"..., 567, MSG_NOSIGNAL,
NULL, 0) = 567
write(4, "\1\0\0\0\0\0\0\0", 8) = 8
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN},
{fd=10, events=POLLIN}], 4, 0) = 2 ([{fd=4, revents=POLLIN}, {fd=10,
revents=POLLIN}])
read(4, "\2\0\0\0\0\0\0\0", 16) = 8
write(4, "\1\0\0\0\0\0\0\0", 8) = 8
write(4, "\1\0\0\0\0\0\0\0", 8) = 8
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN},
{fd=10, events=POLLIN}], 4, 0) = 2 ([{fd=4, revents=POLLIN}, {fd=10,
revents=POLLIN}])
read(4, "\2\0\0\0\0\0\0\0", 16) = 8
write(4, "\1\0\0\0\0\0\0\0", 8) = 8
recvmsg(10, {msg_name(0)=NULL,
msg_iov(1)=[{"\0\0\0\n\377\377\377\377\0\0\0\0\0\0\0\0\0\0\0\0", 20}],
msg_controllen=56, [{cmsg_len=28, cmsg_level=SOL_SOCKET,
cmsg_type=SCM_CREDENTIALS, {pid=13230, uid=1000, gid=1000}}, {cmsg_len=24,
cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, [19, 20]}], msg_flags=0}, 0) = 20
write(4, "\1\0\0\0\0\0\0\0", 8) = 8
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN},
{fd=10, events=POLLIN}], 4, 0) = 2 ([{fd=4, revents=POLLIN}, {fd=10,
revents=POLLIN}])
read(4, "\2\0\0\0\0\0\0\0", 16) = 8
write(4, "\1\0\0\0\0\0\0\0", 8) = 8
recvmsg(10, {msg_name(0)=NULL, msg_iov(1)=[{"L\0\0\0eL\0\237;p", 10}],
msg_controllen=32, [{cmsg_len=28, cmsg_level=SOL_SOCKET,
cmsg_type=SCM_CREDENTIALS, {pid=13230, uid=1000, gid=1000}}], msg_flags=0}, 0)
= 10
write(4, "\1\0\0\0\0\0\0\0", 8) = 8
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN},
{fd=10, events=POLLIN}], 4, 0) = 2 ([{fd=4, revents=POLLIN}, {fd=10,
revents=POLLIN}])
read(4, "\2\0\0\0\0\0\0\0", 16) = 8
write(4, "\1\0\0\0\0\0\0\0", 8) = 8
recvmsg(10, {msg_name(0)=NULL,
msg_iov(1)=[{"\0\0\0\20\0\0\0\0\0\0\0\0\0\0\0\0\200\200\0\0", 20}],
msg_controllen=32, [{cmsg_len=28, cmsg_level=SOL_SOCKET,
cmsg_type=SCM_CREDENTIALS, {pid=13230, uid=1000, gid=1000}}], msg_flags=0}, 0)
= 20
write(4, "\1\0\0\0\0\0\0\0", 8) = 8
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN},
{fd=10, events=POLLIN}], 4, 0) = 2 ([{fd=4, revents=POLLIN}, {fd=10,
revents=POLLIN}])
read(4, "\2\0\0\0\0\0\0\0", 16) = 8
write(4, "\1\0\0\0\0\0\0\0", 8) = 8
recvmsg(10, {msg_name(0)=NULL,
msg_iov(1)=[{"\0\0\234\2001\240G\201\0\1\0@\0\0\377\300", 16}],
msg_controllen=32, [{cmsg_len=28, cmsg_level=SOL_SOCKET,
cmsg_type=SCM_CREDENTIALS, {pid=13230, uid=1000, gid=1000}}], msg_flags=0}, 0)
= 16
open("/dev/shm/pulse-shm-832587649", O_RDWR|O_NOFOLLOW|O_CLOEXEC) = -1 ENOENT
(No such file or directory)
write(2, "shm_open() failed: No such file "..., 45shm_open() failed: No such
file or directory
) = 45
close(10) = 0
munmap(0x7f725bfff000, 67112960) = 0
unlink("/dev/shm/pulse-shm-1704355089") = 0
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}], 3,
0) = 1 ([{fd=4, revents=POLLIN}])
read(4, "\1\0\0\0\0\0\0\0", 16) = 8
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"\22\0\16\0\3\0`\2\4\2\0\0\6\0\0\0
\4\6\0\10\0\0\0\7\0\0\0\0\0\0\0"..., 320}, {NULL, 0}, {"", 0}], 3) = 320
recvmsg(3, {msg_name(0)=NULL,
msg_iov(1)=[{"\34\0\222\2\3\0`\2\4\2\0\0\304\232R\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0",
4096}], msg_controllen=0, msg_flags=0}, 0) = 32
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}], 3,
0) = 0 (Timeout)
read(4, 0x7ffe2e837070, 16) = -1 EAGAIN (Resource temporarily
unavailable)
recvmsg(3, 0x7ffe2e836d90, 0) = -1 EAGAIN (Resource temporarily
unavailable)
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}], 3,
0) = 0 (Timeout)
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}], 3,
15) = 0 (Timeout)
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{"\22\0\16\0\3\0`\2\4\2\0\0\6\0\0\0
\4\6\0\10\0\0\0\7\0\0\0\0\0\0\0"..., 56}, {NULL, 0}, {"", 0}], 3) = 56
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}], 3,
970) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name(0)=NULL,
msg_iov(1)=[{"\34\0\235\2\3\0`\2\4\2\0\0\324\232R\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0",
4096}], msg_controllen=0, msg_flags=0}, 0) = 32
recvmsg(3, 0x7ffe2e836ee0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
recvmsg(3, 0x7ffe2e836d90, 0) = -1 EAGAIN (Resource temporarily
unavailable)
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}], 3,
970) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name(0)=NULL,
msg_iov(1)=[{"U\2\235\2\231\234R\0\3\4\4\0\0\0\0\0\0\0\0\4\4\4\4\4\0\0\3\37%\2\0\0",
4096}], msg_controllen=0, msg_flags=0}, 0) = 32
recvmsg(3, 0x7ffe2e836ee0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
recvmsg(3, 0x7ffe2e836ec0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}], 3,
518^Cstrace: Process 14800 detached
<detached ...>
pulseverbose.log shows this while that happens:
( 326.703| 0.998) I: [pulseaudio] client.c: Created 179 "Native client (UNIX
socket client)"
( 326.703| 0.000) D: [pulseaudio] protocol-native.c: Protocol version: remote
30, local 30
( 326.703| 0.000) I: [pulseaudio] protocol-native.c: Got credentials:
uid=1000 gid=1000 success=1
( 326.703| 0.000) D: [pulseaudio] protocol-native.c: SHM possible: yes
( 326.703| 0.000) D: [pulseaudio] protocol-native.c: Negotiated SHM: yes
( 326.703| 0.000) D: [pulseaudio] srbchannel.c: SHM block is 65472 bytes,
ringbuffer capacity is 2 * 32712 bytes
( 326.703| 0.000) D: [pulseaudio] protocol-native.c: Enabling srbchannel...
( 326.704| 0.001) D: [pulseaudio] module-augment-properties.c: Looking for
.desktop file for pavucontrol
( 326.704| 0.000) I: [pulseaudio] client.c: Freed 179 "PulseAudio Volume
Control"
( 326.704| 0.000) D: [pulseaudio] core-subscribe.c: Dropped redundant event
due to remove event.
( 326.704| 0.000) I: [pulseaudio] protocol-native.c: Connection died.
( 327.704| 1.000) I: [pulseaudio] client.c: Created 180 "Native client (UNIX
socket client)"
( 327.704| 0.000) D: [pulseaudio] protocol-native.c: Protocol version: remote
30, local 30
( 327.704| 0.000) I: [pulseaudio] protocol-native.c: Got credentials:
uid=1000 gid=1000 success=1
( 327.704| 0.000) D: [pulseaudio] protocol-native.c: SHM possible: yes
( 327.704| 0.000) D: [pulseaudio] protocol-native.c: Negotiated SHM: yes
( 327.704| 0.000) D: [pulseaudio] srbchannel.c: SHM block is 65472 bytes,
ringbuffer capacity is 2 * 32712 bytes
( 327.704| 0.000) D: [pulseaudio] protocol-native.c: Enabling srbchannel...
( 327.705| 0.000) D: [pulseaudio] module-augment-properties.c: Looking for
.desktop file for pavucontrol
( 327.705| 0.000) I: [pulseaudio] client.c: Freed 180 "PulseAudio Volume
Control"
( 327.705| 0.000) D: [pulseaudio] core-subscribe.c: Dropped redundant event
due to remove event.
( 327.705| 0.000) I: [pulseaudio] protocol-native.c: Connection died.
( 328.703| 0.998) I: [pulseaudio] client.c: Created 181 "Native client (UNIX
socket client)"
( 328.704| 0.000) D: [pulseaudio] protocol-native.c: Protocol version: remote
30, local 30
( 328.704| 0.000) I: [pulseaudio] protocol-native.c: Got credentials:
uid=1000 gid=1000 success=1
( 328.704| 0.000) D: [pulseaudio] protocol-native.c: SHM possible: yes
( 328.704| 0.000) D: [pulseaudio] protocol-native.c: Negotiated SHM: yes
( 328.704| 0.000) D: [pulseaudio] srbchannel.c: SHM block is 65472 bytes,
ringbuffer capacity is 2 * 32712 bytes
( 328.704| 0.000) D: [pulseaudio] protocol-native.c: Enabling srbchannel...
( 328.704| 0.000) D: [pulseaudio] module-augment-properties.c: Looking for
.desktop file for pavucontrol
( 328.704| 0.000) I: [pulseaudio] client.c: Freed 181 "PulseAudio Volume
Control"
( 328.704| 0.000) I: [pulseaudio] protocol-native.c: Connection died.
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https://bugs.launchpad.net/bugs/1572493
Title:
pulseaudio 8.0 server frequently hangs
Status in pulseaudio package in Ubuntu:
New
Bug description:
After upgrading from Ubuntu 15.10 to 16.04 (pulseaudio 6 -> 8), I
notice that my audio output stops working every few hours. When this
happens, if I run pavucontrol, it seems to wait forever trying to
connect to pulseaudio. Killing pulseaudio and starting it again fixes
the problem for a little while.
I don't think anything fancy is needed to cause a hang; usually, I'm
just using Chrome.
This never happened with pulseaudio 6 over hundreds of hours of use.
I am using the default pulseaudio config files on an HP EliteBook
8460p, which has this audio sink:
1 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: front-left: 61870 / 94% / -1.50 dB, front-right: 61870 /
94% / -1.50 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 38.86 ms
max request: 6 KiB
max rewind: 64 KiB
monitor source: 0
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 1
configured latency: 40.00 ms; range is 0.50 .. 371.52 ms
card: 1 <alsa_card.pci-0000_00_1b.0>
module: 7
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "92HD81B1X5 Analog"
alsa.id = "92HD81B1X5 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xd4520000 irq 40"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "1c20"
device.product.name = "6 Series/C200 Series Chipset Family High
Definition Audio Controller"
device.form_factor = "internal"
device.string = "front:0"
device.buffering.buffer_size = "65536"
device.buffering.fragment_size = "32768"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
alsa.mixer_name = "IDT 92HD81B1X5"
alsa.components = "HDA:111d7605,103c3588,00100105
HDA:11c11040,103c3066,00100200"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output-lineout: Line Out (priority 9900, latency offset
0 usec, available: no)
properties:
analog-output-speaker: Speakers (priority 10000, latency offset
0 usec, available: unknown)
properties:
device.icon_name = "audio-speakers"
analog-output-headphones: Headphones (priority 9000, latency
offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
active port: <analog-output-speaker>
# dpkg -l | grep pulse
ii libpulse-mainloop-glib0:amd64 1:8.0-0ubuntu3 amd64
PulseAudio client libraries (glib support)
ii libpulse0:amd64 1:8.0-0ubuntu3 amd64
PulseAudio client libraries
ii libpulse0:i386 1:8.0-0ubuntu3 i386
PulseAudio client libraries
ii libpulsedsp:amd64 1:8.0-0ubuntu3 amd64
PulseAudio OSS pre-load library
ii pulseaudio 1:8.0-0ubuntu3 amd64
PulseAudio sound server
ii pulseaudio-utils 1:8.0-0ubuntu3 amd64
Command line tools for the PulseAudio sound server
# uname -a
Linux laptop 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux
# lsb_release -rd
Description: Ubuntu 16.04 LTS
Release: 16.04
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