It's my lucky day. Pulseaudio has failed several times today. I see this in syslog for only one of the failures:
$ grep -Ei "alsa|pulseaudio|usb" /var/log/syslog Jun 7 14:50:15 phord-x1 pulseaudio[9173]: CLI got EOF from user. Jun 7 14:50:15 phord-x1 pulseaudio[9173]: Freed 27 "UNIX socket client" Jun 7 14:50:15 phord-x1 pulseaudio[9173]: Created 28 "UNIX socket client" Jun 7 14:50:15 phord-x1 pulseaudio[9173]: CLI got EOF from user. Jun 7 14:50:15 phord-x1 pulseaudio[9173]: Freed 28 "UNIX socket client" Jun 7 14:50:32 phord-x1 pulseaudio[9173]: Created 29 "UNIX socket client" Jun 7 15:16:36 phord-x1 pulseaudio[9173]: Got POLLNVAL from ALSA Jun 7 15:16:36 phord-x1 pulseaudio[9173]: Could not recover from POLLERR|POLLNVAL|POLLHUP with snd_pcm_prepare(): No such device Jun 7 15:16:36 phord-x1 kernel: [26867.240852] usb 1-4.1.4: reset full-speed USB device number 18 using xhci_hcd After this I ran pulseaudio manually. An hour or so later it quit. Not much detail, though: $ time LANG=C pulseaudio -vvvv --log-time=1 > ~/pulseverbose.log 2>&1 [1] 17630 killed LANG=C pulseaudio -vvvv --log-time=1 > ~/pulseverbose.log 2>&1 LANG=C pulseaudio -vvvv --log-time=1 > ~/pulseverbose.log 2>&1 32.48s user 29.58s system 1% cpu 1:08:45.80 total I've attached the log from that 2nd failure (PID=17630). I don't have the log from the first one because I had restarted it manually without logs earlier in the day. ** Attachment added: "pulseaudio log from another failure" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1696589/+attachment/4891739/+files/pulseverbose.log.gz -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1696589 Title: [USB-Audio - ThinkPad OneLink Plus Dock Audi, playback] fails after a while Status in alsa-driver package in Ubuntu: New Bug description: On Ubuntu 16.10 The pulseaudio daemon dies occasionally. It's probably caused by audio output activity, but I can't be sure it always stops during playback because I can't always hear it (headphones plugged in but not on my head). It doesn't seem to die as much when I'm not playing audio, however. The included log collected by `ubuntu-bug audio` does not represent the bug. It does not occur frequently enough to capture it while creating this report. But I have capture logs of several crashes in the past. A month or so ago I added this to my /etc/pulse/client.conf: ; Added for debugging pulseaudio failures ; https://wiki.ubuntu.com/PulseAudio/Log ; Maybe related: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1574324 extra-arguments = -vvvv --log-target=newfile:/tmp/pulseverbose.log --log-time=1 I have attached some of the logs up the point of failure to this report. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.8.0-52.55-generic 4.8.17 Uname: Linux 4.8.0-52-generic x86_64 ApportVersion: 2.20.3-0ubuntu8.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC1D0p: phord 9173 F...m pulseaudio /dev/snd/controlC1: phord 9173 F.... pulseaudio /dev/snd/pcmC0D0c: phord 9173 F...m pulseaudio /dev/snd/controlC0: phord 9173 F.... pulseaudio CurrentDesktop: Unity Date: Wed Jun 7 14:48:59 2017 InstallationDate: Installed on 2017-02-17 (110 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_Card: ThinkPad OneLink Plus Dock Audio - ThinkPad OneLink Plus Dock Audi Symptom_Type: Sound works for a while, then breaks Title: [USB-Audio - ThinkPad OneLink Plus Dock Audi, playback] fails after a while UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/02/2016 dmi.bios.vendor: LENOVO dmi.bios.version: N1FET43W (1.17 ) dmi.board.asset.tag: Not Available dmi.board.name: 20FB005LUS dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1FET43W(1.17):bd08/02/2016:svnLENOVO:pn20FB005LUS:pvrThinkPadX1Carbon4th:rvnLENOVO:rn20FB005LUS:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20FB005LUS dmi.product.version: ThinkPad X1 Carbon 4th dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1696589/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
