I created a PipeWire node for a I2S DAC on my Raspberry Pi but node have been suspended state since boot time and never be in idle or running state.
I set:
node.pause-on-idle = false
node.suspend-on-idle = false
in /etc/pipewire/minimal.conf
and I run:
/usr/local/bin/pipewire -c /etc/pipewire/minimal.conf
The node was created successfully so I tried to run MPD to connect I2S DAC node and pw-top looked like this:
S ID QUANT RATE WAIT BUSY W/Q B/Q ERR NAME
! 17 0 0 0.0µs 0.0µs 0.00 0.00 0 Onboard I2S DAC
! 20 0 0 0.0µs 0.0µs 0.00 0.00 0 mpd.PipeWire Sound Server
But no sound came out and result of pw-dump showed both I2S DAC node and mpd node was suspended.
Is there any suggestion to fix this issue?
Thanks in advance.
Related
When attempting to run flow graph in GNU Radio Companion, I get the following error:
AttributeError: module 'iio' has no attribute 'pluto_source'
I am running a new VMWare environment, on Windows, for Ubuntu 20.04.
I first installed the drivers and the libiio library for the Pluto and was able to SSH via: ssh root#192.168.21
However, in terminal when I run iio_info -s I get the following output which concerns me.
Library version: 0.21 (git tag: 9d79757)
Compiled with backends: local xml ip usb
Unable to create Local IIO context : No such file or directory (2)
Available contexts:
0: 0456:b673 (Analog Devices Inc. PlutoSDR (ADALM-PLUTO)), serial=1044739659930006f4ff24003edc27135f [usb:1.10.5]
1: 192.168.2.1 (Analog Devices PlutoSDR Rev.B (Z7010-AD9364)), serial=1044739659930006f4ff24003edc27135f [ip:pluto.local]
Running iio_info -u ip:192.168.2.1 I get a few errors which might be related to the above.
Library version: 0.21 (git tag: 9d79757)
Compiled with backends: local xml ip usb
IIO context created with network backend.
Backend version: 0.21 (git tag: v0.21 )
Backend description string: 192.168.2.1 Linux (none) 4.19.0-119999-g6edc6cd #319 SMP PREEMPT Mon Jul 6 15:45:01 CEST 2020 armv7l
IIO context has 9 attributes:
hw_model: Analog Devices PlutoSDR Rev.B (Z7010-AD9364)
hw_model_variant: 0
hw_serial: 1044739659930006f4ff24003edc27135f
fw_version: v0.32
ad9361-phy,xo_correction: 39999954
ad9361-phy,model: ad9364
local,kernel: 4.19.0-119999-g6edc6cd
uri: ip:192.168.2.1
ip,ip-addr: 192.168.2.1
...
...
attr 10: multichip_sync ERROR: Permission denied (13)
attr 11: rssi_gain_step_error value: lna_error: 0 0 0 0
mixer_error: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...
...
debug attr 180: adi,frequency-division-duplex-mode-enable value: 1
debug attr 181: direct_reg_access value: 0x0
No trigger on this device
iio:device2: xadc
10 channels found:
voltage5: vccoddr (input)
...
...
2 debug attributes found:
debug attr 0: pseudorandom_err_check value: CH0 : PN9 : Out of Sync : PN Error
CH1 : PN9 : Out of Sync : PN Error
debug attr 1: direct_reg_access value: 0x0
No trigger on this device
I was unsure what the errors were, so I re-flashed the PlutoSDR with the latest Firmware and tried again. Still same errors.
Any ideas what this would be from?
I had a similar issue with GNU Radio Companion 3.8 (GRC) and Adalm Pluto. The root cause is that GRC requires a "tailored" iio package, which is different from the one you install via "pip install pylibiio." I can suggest the following:
Uninstall the Python iio (if you did, so as to avoid masking)
Make sure you install the gr-iio according to the official guide.
In the guide there are directions about making a copy of gr-iio installation and exporting its location to PYTHONPATH. Alternately, you can see some details from my experience.
If you need to use Adalm Pluto with Python, without GRC, I can recommend creating a virtual environment (venv) and installing Python iio there.
My django server is running with port 9000 and I am trying to run ngrok for my local django server with the following command
./ngrok http 192.168.7.171:9000
But it is throwing 2 errors as
reconnecting (dial tcp [2600:1f16:59e:b200:7dc6:8c66:d95b:e236]:443: connect: network is unreachable)
then
reconnecting (read tcp 192.168.7.171:57604->52.15.196.176:443: i/o timeout)
The error is shown as below in terminal,
Session Status reconnecting (read tcp 192.168.7.171:47454->18.216.22.45:443: i/o timeout)
Update update available (version 2.3.27, Ctrl-U to update)
Version 2.2.8
Region United States (us)
Web Interface http://127.0.0.1:4040
Connections ttl opn rt1 rt5 p50 p90
0 0 0.00 0.00 0.00 0.00
Could anyone help me out of this issue?
I have a WHM server on GoDaddy.
I'm receiving quite a lot (3-4 a day) mails about a process failing and recovering itself. Happens mostly to "cphulkd" but also to "lfd".
My server:
WHM version v68.0.33. Contains two websites (One Moodle and one Wordpress). 2GB Ram, 60GB HD.
This is the whole mail:
Server s50-62-22-123.secureserver.net Primary IP Address
50.62.22.123 Service Name cphulkd Service Status failed ⛔ Notification The service “cphulkd” appears to be down. Service Check
Method The system’s command to check or to restart this service
failed. Number of Restart Attempts 1 Service Check Raw Output (XID
ejd2e7) The “cphulkd” service is down.
The subprocess “/usr/local/cpanel/scripts/restartsrv_cphulkd” reported
error number 255 when it ended. Startup Log Starting cPHulkd...
Started. Starting PID 3789: cPhulkd - processor - dormant mode -
accepting connections Memory Information Used 2.43 GB Available
1.57 GB Installed 4 GB Load Information 0.17 0.19 0.18 Uptime 2 days, 18 hours, 59 minutes, and 37 seconds IOStat Information
avg-cpu: %user %nice %system %iowait %steal %idle
0.62 0.11 0.12 0.17 0.00 98.99 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn Top Processes
PID Owner CPU % Memory % Command 18850 root 2.45 2.29 spamd
child 3452 root 0.94 2.35
/usr/local/cpanel/3rdparty/perl/524/bin/perl -T -w
/usr/local/cpanel/3rdparty/bin/spamd --max-spare=1 --max-children=3
--allowed-ips=127.0.0.1,::1 --pidfile=/var/run/spamd.pid --listen=5 1488 mysql 0.52 7.49 /usr/sbin/mysqld --basedir=/usr
--datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=s50-62-22-179.secureserver.net.err --open-files-limit=10000 --pid-file=/var/lib/mysql/s50-62-22-179.secureserver.net.pid 18854 dovecot 0.31 0.06 dovecot/auth 20291 root 0.07 0.71 lfd -
sleeping
Any ideas?
What's weird is that the mail says I have 4GB but I only have 2GB..
Scratching my head here. Hoping someone can help me troubleshoot.
I have a Dell PowerEdge SC1435 server which had been running with a previous version of ubuntu for a while. (I believe it was 13.10 server x64)
I recently reformatted the drive (SSD) and installed ubuntu server 14.04.1 x64.
All seemed fine through the install but the machine hung on first boot at the end of the kernel output, just before I would expect the screen to clear and a logon prompt appear. There were no obvious errors at the end of the kernel output that I saw. (There was a message about "not using cpu thermal sensor that is unreliable" but that appears to be there regardless of whether it boots or not)
I gave it a good 5 minutes and then forced a reboot. To my surprise it booted to the logon prompt in about 1-2 seconds after bios post. I rebooted again and it seemed to pause for a few extra seconds where it hung before, but proceeded to the login screen. Rebooting again it was fast again. So at this point I thought it was just one of those random one-off glitches that I would never explain so I moved on.
I installed a few packages (exact same packages installed on the same OS version on other hardware), did apt upgrade and dist-upgrade then rebooted. It seemed to hang again so I drove to the datacentre and connected a console only to get a blank screen. Forced reboot again. (also setup ipmi for remote rebooting and got rid of the grub recordfail so it would not wait for me to press enter!)
That was very late last night. I came home, did a few reboots with no issue so went to bed.
Today I did a reboot again to check it and again it crashed somewhere. I remotely force rebooted it.
As this point I started digging a little more and immediately noticed something really strange.
top - 14:18:35 up 8 min, 1 user, load average: 1.00, 0.85, 0.45
Tasks: 148 total, 1 running, 147 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.1 us, 0.3 sy, 0.0 ni, 99.6 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 33013620 total, 338928 used, 32674692 free, 9740 buffers
KiB Swap: 3906556 total, 0 used, 3906556 free. 47780 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 root 20 0 33508 2772 1404 S 0.0 0.0 0:03.82 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
6 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kworker/u16:0
8 root 20 0 0 0 0 S 0.0 0.0 0:00.24 rcu_sched
9 root 20 0 0 0 0 S 0.0 0.0 0:00.02 rcuos/0
10 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcuos/1
11 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcuos/2
This server is completely unused and idle, yet it has a 1 minute load average of exactly 1.00?
As I watch the other values - the 5 minute and 15 minute also appear to be heading towards 1.00 so I assume they will all reach 1.00 at some point. (The "1 Running" is the top process)
I have never had this before and since I have no idea what is causing the startup crashing, I am assuming at this point that the two are likely related.
What I would like to do is identify (and hopefully eliminate) what is causing that false load average and my crashing issue.
So far I have been unable to identify what process could be waiting for a resource of some kind to generate that load average.
I would very much appreciate it if someone could help me to try and track it down.
top shows all processes pretty much always sleeping. Some occasionally popping up top but I think that's pretty normal. CPU usage is mostly showing 100% IDLE, with very occasional dips to 99% or so.
nmon doesn't show me much. everything just looks idle.
iotop shows pretty much no traffic whatsoever. (again, very occasional spots of disk access)
interrupt frequency seems low. way below 100/sec from what I can see.
I saw numerous google discussions suggesting this:
echo 100 > /sys/module/ipmi_si/parameters/kipmid_max_busy_us
..no effect.
RAM in the server is ECC and test passes.
Server install was 'minimal' (F4 option) with OpenSSH server ticked during install.
Installed a few packages afterwards including vim, bcache-tools, bridge-utils, qemu, software-properties-common, open-iscsi, qemu-kvm, cpu-checker, socat, ntp and nodejs. (Think that is about it)
I have tried disabling and removing the bcache kernel module. no effect.
stopped iscsi service.. no effect. (although there is absolutely nothing configured on this server yet)
I will leave it there before this gets insanely long. If anyone could help me try to figure this out it would be very much appreciated.
Cheers,
James
the load average of 1.0 is an artefact of bcache write-back thread staying in uninterruptible sleep. It may be corrected in 3.19 kernels or newer. See this Debian bug report for instance.
I tried to setup NAS (Network Audio System ) in RHEL 6 by two methods:
First, by RPM install,
[root#localhost ~]# rpm -Uvh nas-1.9.2-1.el6.x86_64.rpm nas-libs-1.9.2-1.el6.x86_64.rpm
it gets installed, but I cannot find the service in /etc/init.d/ directory.
only /etc/nas/nasd.conf file gets created. And if I run the command
[root#localhost ~]# nasd
Network Audio System Release 1.9.2
Network Audio System Release 1.9.2
Init: Output open(/dev/dsp) failed: No such file or directory
Fatal server error:
could not create audio connection block info
Secondly, by Configuring latest tar-ball nas-1.9.3.src.tar.gz provided by NAS site.
but the problem is same.
Please help me to install this properly, as I want to get enable the audio for qt based applications, and qt uses NAS for its audio functionalities.
Tried Very much by NAS but not succeed to resolve my problem.
Then i used Phonon library to resolve sound issue !!
Thanx anyways for helping me! :)
okay. well it's been a while but...
you dont have enough perms to open the underlying socket.
me#dev $ strace -o ./nasd.txt nasd -aa -config ./nasd.conf
Network Audio System Release 1.9.3
Network Audio System Release 1.9.3
Error binding unix socket: /var/run/nasd/audio0
: Address already in use
Fatal server error:
Cannot establish unix listening socket
the appropriate bit is here from the strace
ioctl(0, SIOCGIFCONF, {96, {{"lo", {AF_INET, inet_addr("127.0.0.1")}}, {"wlan0", {AF_INET, inet_addr("192.168.1.69")}}, {"usb0", {AF_INET, inet_addr("192.168.15.100")}}}}) = 0
umask(0) = 022
mkdir("/var/run/nasd", 0777) = -1 EEXIST (File exists)
unlink("/var/run/nasd/audio0") = -1 EPERM (Operation not permitted)
socket(PF_FILE, SOCK_STREAM, 0) = 1
bind(1, {sa_family=AF_FILE, path="/var/run/nasd/audio0"}, 22) = -1 EADDRINUSE (Address already in use)
The unlink("/var/run/nasd/audio0") = -1 EPERM (Operation not permitted) is the clue.
if we copy the nasd.conf locally and tweak the debug value to 1 and run it as root
me#dev $ sudo nasd -aa -config ./nasd.conf
config: Maxfrags set to 3
config: Minfrags set to 2
config: Fragsize set to 256
config: Maxfrags set to 3
config: Minfrags set to 2
config: Fragsize set to 256
Network Audio System Release 1.9.3
Network Audio System Release 1.9.3
AuInitPhysicalDevices();
Init: will close device when finished with stream.
Init: will keep mixer device open.
Init: Leaving the mixer device options alone at startup.
Init: openDevice OUT /dev/snd/pcmC1D0p mode 1
Init: openDevice(1) IN /dev/snd/pcmC1D0c mode 0
setupSoundcard(...);
++ Setting up Output device (/dev/snd/pcmC1D0p)
+++ requesting wordsize of 16, got 8
+++ requesting 2 channel(s), got 1 channel(s)
+++ Requesting minimum sample rate of 5000, got 5000
+++ Requesting maximum sample rate of 44100, got 44100
setupSoundcard(...);
++ Setting up Input device (/dev/snd/pcmC1D0c)
+++ requesting wordsize of 8, got 8
+++ requesting 2 channel(s), got 1 channel(s)
+++ Requesting minimum sample rate of 4000, got 4000
+++ Requesting maximum sample rate of 44100, got 44100
initMixer: could not open output mixer device /dev/mixer: No such file or directory
Init: initMixer failed
createServerComponents(...);
closeDevice: out
closeDevice OUT /dev/snd/pcmC1D0p mode 1
closeDevice: in
closeDevice IN /dev/snd/pcmC1D0c mode 0
closeDevice: mixer
closeDevice: leaving mixer device(s) open
in my case looks like I need to setup the mixer section but that should nerf your error.
EDIT: initMixer: could not open output mixer device /dev/mixer: No such file or directory
This can be fixed by placing mixer ="" in the nasd.conf (even though the docs state it won't be honoured, it is)
Also: remember to set your AUDIOSERVER env variable
export AUDIOSERVER=tcp/localhost:8000
Is the default but never hurts to be certain...
Final thoughts:
by default many x server now -nolisten tcp and that could be an issue in implementation to consider.
nmap is your friend.
And, for the record, I still haven't actually got an end-to-end system working...
Hopefully some other kind soul will jump in and point out anything I have missed.
Hope it helps.
I don't have a rhel box... but it's probably the same perms issue.
The docs are "thin" at best