Activity log for bug #1087010

Date Who What changed Old value New value Message
2012-12-05 21:52:53 Mio bug added bug
2012-12-05 22:01:03 Brad Figg linux (Ubuntu): status New Confirmed
2012-12-05 22:24:19 Mio description I see high cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. I tested various kernels from Ubuntu and mainline (3.5.0-x, 3.6.x, 3.7.0-rcx) and they all showed the same behaviour. This does not always happen. I wasn't able to determine on which basis it happens. Some observations that may as well be wrong (duh!): On some boot all is fine but once it shows, no matter how many reboots it does not seem to want to go away again. The laptop seems to have to rest a while to have a chance that it won't happen. If it does not happen a reboot will show the behaviour. Ubuntu Quantal ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mio 1965 F.... pulseaudio /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours. No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.5.0-19-generic N/A linux-backports-modules-3.5.0-19-generic N/A linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. I see high cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. I tested various kernels from Ubuntu and mainline (3.5.0-x, 3.6.x, 3.7.0-rcx) and they all showed the same behavior. This does not always happen. I wasn't able to determine on which basis it happens. Some observations that may as well be wrong (duh!): On some boot all is fine but once it shows, no matter how many reboots it does not seem to want to go away again. The laptop seems to have to rest a while to have a chance that it won't happen. If it does not happen a reboot will show the behavior. I saw similar bugs in various places but it seems that this can have a multitude of causes and the presented workaround or fixes did not apply to me. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
2012-12-05 22:25:39 Mio description I see high cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. I tested various kernels from Ubuntu and mainline (3.5.0-x, 3.6.x, 3.7.0-rcx) and they all showed the same behavior. This does not always happen. I wasn't able to determine on which basis it happens. Some observations that may as well be wrong (duh!): On some boot all is fine but once it shows, no matter how many reboots it does not seem to want to go away again. The laptop seems to have to rest a while to have a chance that it won't happen. If it does not happen a reboot will show the behavior. I saw similar bugs in various places but it seems that this can have a multitude of causes and the presented workaround or fixes did not apply to me. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. I see high cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. I tested various kernels from Ubuntu and mainline (3.5.0-x, 3.6.x, 3.7.0-rcx) and they all showed the same behavior. This does not always happen. I wasn't able to determine on which basis it happens. Some observations that may as well be wrong (duh!): On some boot all is fine but once it shows, no matter how many reboots it does not seem to want to go away again. The laptop seems to have to rest a while to have a chance that it won't happen. If it does not happen a reboot will show the behavior. I saw similar bug reports in various places but it seems that this can have a multitude of causes and the presented workarounds or fixes did not apply to me. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
2012-12-06 18:51:15 Joseph Salisbury linux (Ubuntu): importance Undecided Medium
2012-12-06 18:51:16 Joseph Salisbury linux (Ubuntu): status Confirmed Incomplete
2013-01-06 21:37:00 Mauro bug added subscriber Mauro
2013-01-06 21:37:24 Mauro marked as duplicate 887793
2013-01-29 05:49:55 Stefanie Jane 🌠 bug added subscriber Steve Kondik
2013-08-13 13:54:16 fademind bug added subscriber Tomasz Przybył
2013-08-18 18:16:58 penalvch removed duplicate marker 887793
2013-08-18 18:17:14 penalvch tags amd64 apport-bug quantal amd64 apport-bug needs-full-computer-model needs-upstream-testing quantal regression-potential
2013-10-18 04:18:01 Launchpad Janitor linux (Ubuntu): status Incomplete Expired
2013-11-24 08:41:49 Mark Holtzhausen bug added subscriber Mark Holtzhausen
2013-11-24 08:43:04 Mark Holtzhausen tags amd64 apport-bug needs-full-computer-model needs-upstream-testing quantal regression-potential amd64 apport-bug apport-collected needs-full-computer-model needs-upstream-testing quantal regression-potential saucy
2013-11-24 08:43:08 Mark Holtzhausen attachment added AlsaInfo.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915905/+files/AlsaInfo.txt
2013-11-24 08:43:11 Mark Holtzhausen attachment added BootDmesg.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915906/+files/BootDmesg.txt
2013-11-24 08:43:13 Mark Holtzhausen attachment added CRDA.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915907/+files/CRDA.txt
2013-11-24 08:43:15 Mark Holtzhausen attachment added CurrentDmesg.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915908/+files/CurrentDmesg.txt
2013-11-24 08:43:17 Mark Holtzhausen attachment added IwConfig.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915909/+files/IwConfig.txt
2013-11-24 08:43:20 Mark Holtzhausen attachment added Lspci.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915910/+files/Lspci.txt
2013-11-24 08:43:21 Mark Holtzhausen attachment added Lsusb.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915911/+files/Lsusb.txt
2013-11-24 08:43:23 Mark Holtzhausen attachment added ProcCpuinfo.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915912/+files/ProcCpuinfo.txt
2013-11-24 08:43:25 Mark Holtzhausen attachment added ProcEnviron.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915913/+files/ProcEnviron.txt
2013-11-24 08:43:28 Mark Holtzhausen attachment added ProcInterrupts.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915914/+files/ProcInterrupts.txt
2013-11-24 08:43:30 Mark Holtzhausen attachment added ProcModules.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915915/+files/ProcModules.txt
2013-11-24 08:43:33 Mark Holtzhausen attachment added PulseList.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915916/+files/PulseList.txt
2013-11-24 08:43:34 Mark Holtzhausen attachment added RfKill.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915917/+files/RfKill.txt
2013-11-24 08:43:39 Mark Holtzhausen attachment added UdevDb.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915918/+files/UdevDb.txt
2013-11-24 08:43:46 Mark Holtzhausen attachment added UdevLog.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915919/+files/UdevLog.txt
2013-11-24 08:43:55 Mark Holtzhausen attachment added WifiSyslog.txt https://bugs.launchpad.net/bugs/1087010/+attachment/3915920/+files/WifiSyslog.txt
2013-11-24 14:11:06 penalvch tags amd64 apport-bug apport-collected needs-full-computer-model needs-upstream-testing quantal regression-potential saucy amd64 apport-bug needs-full-computer-model needs-upstream-testing quantal regression-potential
2013-11-24 14:11:08 penalvch attachment removed WifiSyslog.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915920/+files/WifiSyslog.txt
2013-11-24 14:11:09 penalvch attachment removed UdevLog.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915919/+files/UdevLog.txt
2013-11-24 14:11:10 penalvch attachment removed RfKill.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915917/+files/RfKill.txt
2013-11-24 14:11:12 penalvch attachment removed UdevDb.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915918/+files/UdevDb.txt
2013-11-24 14:11:13 penalvch attachment removed ProcModules.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915915/+files/ProcModules.txt
2013-11-24 14:11:14 penalvch attachment removed PulseList.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915916/+files/PulseList.txt
2013-11-24 14:11:16 penalvch attachment removed ProcInterrupts.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915914/+files/ProcInterrupts.txt
2013-11-24 14:11:17 penalvch attachment removed ProcCpuinfo.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915912/+files/ProcCpuinfo.txt
2013-11-24 14:11:18 penalvch attachment removed ProcEnviron.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915913/+files/ProcEnviron.txt
2013-11-24 14:11:19 penalvch attachment removed Lsusb.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915911/+files/Lsusb.txt
2013-11-24 14:11:19 penalvch attachment removed Lspci.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915910/+files/Lspci.txt
2013-11-24 14:11:21 penalvch attachment removed IwConfig.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915909/+files/IwConfig.txt
2013-11-24 14:11:23 penalvch attachment removed CRDA.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915907/+files/CRDA.txt
2013-11-24 14:11:23 penalvch attachment removed BootDmesg.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915906/+files/BootDmesg.txt
2013-11-24 14:11:25 penalvch attachment removed AlsaInfo.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915905/+files/AlsaInfo.txt
2013-11-24 14:11:25 penalvch attachment removed CurrentDmesg.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/3915908/+files/CurrentDmesg.txt
2014-02-11 07:58:13 Vladimir Scherbaev linux (Ubuntu): status Expired New
2014-02-11 08:00:15 Brad Figg linux (Ubuntu): status New Confirmed
2014-02-15 11:10:41 penalvch linux (Ubuntu): status Confirmed Incomplete
2014-04-17 04:17:17 Launchpad Janitor linux (Ubuntu): status Incomplete Expired
2015-03-07 18:30:45 Gökçen Eraslan bug added subscriber Gökçen Eraslan
2018-05-18 16:44:25 Mio tags amd64 apport-bug needs-full-computer-model needs-upstream-testing quantal regression-potential amd64 apport-bug apport-collected bionic needs-full-computer-model needs-upstream-testing quantal regression-potential
2018-05-18 16:44:26 Mio description I see high cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. I tested various kernels from Ubuntu and mainline (3.5.0-x, 3.6.x, 3.7.0-rcx) and they all showed the same behavior. This does not always happen. I wasn't able to determine on which basis it happens. Some observations that may as well be wrong (duh!): On some boot all is fine but once it shows, no matter how many reboots it does not seem to want to go away again. The laptop seems to have to rest a while to have a chance that it won't happen. If it does not happen a reboot will show the behavior. I saw similar bug reports in various places but it seems that this can have a multitude of causes and the presented workarounds or fixes did not apply to me. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. I see high cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. I tested various kernels from Ubuntu and mainline (3.5.0-x, 3.6.x, 3.7.0-rcx) and they all showed the same behavior. This does not always happen. I wasn't able to determine on which basis it happens. Some observations that may as well be wrong (duh!): On some boot all is fine but once it shows, no matter how many reboots it does not seem to want to go away again. The laptop seems to have to rest a while to have a chance that it won't happen. If it does not happen a reboot will show the behavior. I saw similar bug reports in various places but it seems that this can have a multitude of causes and the presented workarounds or fixes did not apply to me. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
2018-05-18 16:44:27 Mio attachment added AlsaInfo.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141314/+files/AlsaInfo.txt
2018-05-18 16:44:28 Mio attachment added CRDA.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141315/+files/CRDA.txt
2018-05-18 16:44:29 Mio attachment added CurrentDmesg.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141316/+files/CurrentDmesg.txt
2018-05-18 16:44:30 Mio attachment added IwConfig.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141317/+files/IwConfig.txt
2018-05-18 16:44:32 Mio attachment added Lspci.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141318/+files/Lspci.txt
2018-05-18 16:44:33 Mio attachment added Lsusb.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141319/+files/Lsusb.txt
2018-05-18 16:44:34 Mio attachment added ProcCpuinfo.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141320/+files/ProcCpuinfo.txt
2018-05-18 16:44:35 Mio attachment added ProcCpuinfoMinimal.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141321/+files/ProcCpuinfoMinimal.txt
2018-05-18 16:44:37 Mio attachment added ProcEnviron.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141322/+files/ProcEnviron.txt
2018-05-18 16:44:37 Mio attachment added ProcInterrupts.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141323/+files/ProcInterrupts.txt
2018-05-18 16:44:39 Mio attachment added ProcModules.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141324/+files/ProcModules.txt
2018-05-18 16:44:40 Mio attachment added PulseList.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141325/+files/PulseList.txt
2018-05-18 16:44:41 Mio attachment added RfKill.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141326/+files/RfKill.txt
2018-05-18 16:44:43 Mio attachment added UdevDb.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141327/+files/UdevDb.txt
2018-05-18 16:44:45 Mio attachment added WifiSyslog.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141328/+files/WifiSyslog.txt
2018-05-18 16:48:03 Mio linux (Ubuntu): status Expired New
2018-05-18 16:57:27 Mio description I see high cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. I tested various kernels from Ubuntu and mainline (3.5.0-x, 3.6.x, 3.7.0-rcx) and they all showed the same behavior. This does not always happen. I wasn't able to determine on which basis it happens. Some observations that may as well be wrong (duh!): On some boot all is fine but once it shows, no matter how many reboots it does not seem to want to go away again. The laptop seems to have to rest a while to have a chance that it won't happen. If it does not happen a reboot will show the behavior. I saw similar bug reports in various places but it seems that this can have a multitude of causes and the presented workarounds or fixes did not apply to me. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. I see high cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. I tested various kernels from Ubuntu and mainline (3.5.0-x, 3.6.x, 3.7.0-rcx) and they all showed the same behavior. This does not always happen. I wasn't able to determine on which basis it happens. Some observations that may as well be wrong (duh!): On some boot all is fine but once it shows, no matter how many reboots it does not seem to want to go away again. The laptop seems to have to rest a while to have a chance that it won't happen. If it does not happen a reboot will show the behavior. I saw similar bug reports in various places but it seems that this can have a multitude of causes and the presented workarounds or fixes did not apply to me. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
2018-05-18 16:57:27 Mio attachment added AlsaInfo.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141333/+files/AlsaInfo.txt
2018-05-18 16:57:28 Mio attachment added CRDA.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141334/+files/CRDA.txt
2018-05-18 16:57:30 Mio attachment added CurrentDmesg.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141335/+files/CurrentDmesg.txt
2018-05-18 16:57:32 Mio attachment added IwConfig.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141336/+files/IwConfig.txt
2018-05-18 16:57:32 Mio attachment added Lspci.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141337/+files/Lspci.txt
2018-05-18 16:57:33 Mio attachment added Lsusb.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141338/+files/Lsusb.txt
2018-05-18 16:57:34 Mio attachment added ProcCpuinfo.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141339/+files/ProcCpuinfo.txt
2018-05-18 16:57:35 Mio attachment added ProcCpuinfoMinimal.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141340/+files/ProcCpuinfoMinimal.txt
2018-05-18 16:57:35 Mio attachment added ProcEnviron.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141341/+files/ProcEnviron.txt
2018-05-18 16:57:36 Mio attachment added ProcInterrupts.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141342/+files/ProcInterrupts.txt
2018-05-18 16:57:37 Mio attachment added ProcModules.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141343/+files/ProcModules.txt
2018-05-18 16:57:39 Mio attachment added PulseList.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141344/+files/PulseList.txt
2018-05-18 16:57:39 Mio attachment added RfKill.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141345/+files/RfKill.txt
2018-05-18 16:57:41 Mio attachment added UdevDb.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141346/+files/UdevDb.txt
2018-05-18 16:57:41 Mio attachment added WifiSyslog.txt https://bugs.launchpad.net/bugs/1087010/+attachment/5141347/+files/WifiSyslog.txt
2018-05-18 17:00:09 Ubuntu Kernel Bot linux (Ubuntu): status New Confirmed
2018-05-18 17:43:15 Mio tags amd64 apport-bug apport-collected bionic needs-full-computer-model needs-upstream-testing quantal regression-potential amd64 apport-bug apport-collected bionic kernel-bug-exists-upstream kernel-bug-exists-upstream-4.17.0-rc4 needs-full-computer-model quantal regression-potential
2018-05-18 17:45:39 Mio tags amd64 apport-bug apport-collected bionic kernel-bug-exists-upstream kernel-bug-exists-upstream-4.17.0-rc4 needs-full-computer-model quantal regression-potential amd64 apport-bug apport-collected bionic kernel-bug-exists-upstream kernel-bug-exists-upstream-4.17-rc4 needs-full-computer-model quantal regression-potential
2018-05-18 17:47:10 Mio tags amd64 apport-bug apport-collected bionic kernel-bug-exists-upstream kernel-bug-exists-upstream-4.17-rc4 needs-full-computer-model quantal regression-potential amd64 apport-bug apport-collected bionic kernel-bug-exists-upstream kernel-bug-exists-upstream-4.17-rc4 quantal regression-potential
2018-05-18 19:19:22 penalvch description I see high cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. I tested various kernels from Ubuntu and mainline (3.5.0-x, 3.6.x, 3.7.0-rcx) and they all showed the same behavior. This does not always happen. I wasn't able to determine on which basis it happens. Some observations that may as well be wrong (duh!): On some boot all is fine but once it shows, no matter how many reboots it does not seem to want to go away again. The laptop seems to have to rest a while to have a chance that it won't happen. If it does not happen a reboot will show the behavior. I saw similar bug reports in various places but it seems that this can have a multitude of causes and the presented workarounds or fixes did not apply to me. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. I see high (70-90%) cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. This does not always happen. On some boots all is fine but once it shows, rebooting does not make it go away. WORKAROUND: Execute: echo "disable" > /sys/firmware/acpi/interrupts/gpe13 ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions:  linux-restricted-modules-4.15.0-20-generic N/A  linux-backports-modules-4.15.0-20-generic N/A  linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions:  linux-restricted-modules-4.15.0-20-generic N/A  linux-backports-modules-4.15.0-20-generic N/A  linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
2018-05-18 19:30:59 penalvch linux (Ubuntu): importance Medium Low
2018-05-18 19:30:59 penalvch linux (Ubuntu): status Confirmed Triaged
2018-05-19 07:49:48 Mio description I see high (70-90%) cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. This does not always happen. On some boots all is fine but once it shows, rebooting does not make it go away. WORKAROUND: Execute: echo "disable" > /sys/firmware/acpi/interrupts/gpe13 ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions:  linux-restricted-modules-4.15.0-20-generic N/A  linux-backports-modules-4.15.0-20-generic N/A  linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions:  linux-restricted-modules-4.15.0-20-generic N/A  linux-backports-modules-4.15.0-20-generic N/A  linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. I see high cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. I tested various kernels from Ubuntu and mainline (3.5.0-x, 3.6.x, 3.7.0-rcx) and they all showed the same behavior. This does not always happen. I wasn't able to determine on which basis it happens. Some observations that may as well be wrong (duh!): On some boot all is fine but once it shows, no matter how many reboots it does not seem to want to go away again. The laptop seems to have to rest a while to have a chance that it won't happen. If it does not happen a reboot will show the behavior. Full computer model is Samsung Chronos 7 NP700Z7C-S02DE Edit: workaround is echo disable > /sys/firmware/acpi/interrupts/gpe13 ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions:  linux-restricted-modules-4.15.0-20-generic N/A  linux-backports-modules-4.15.0-20-generic N/A  linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions:  linux-restricted-modules-4.15.0-20-generic N/A  linux-backports-modules-4.15.0-20-generic N/A  linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
2018-05-19 08:11:53 penalvch description I see high cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. I tested various kernels from Ubuntu and mainline (3.5.0-x, 3.6.x, 3.7.0-rcx) and they all showed the same behavior. This does not always happen. I wasn't able to determine on which basis it happens. Some observations that may as well be wrong (duh!): On some boot all is fine but once it shows, no matter how many reboots it does not seem to want to go away again. The laptop seems to have to rest a while to have a chance that it won't happen. If it does not happen a reboot will show the behavior. Full computer model is Samsung Chronos 7 NP700Z7C-S02DE Edit: workaround is echo disable > /sys/firmware/acpi/interrupts/gpe13 ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions:  linux-restricted-modules-4.15.0-20-generic N/A  linux-backports-modules-4.15.0-20-generic N/A  linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions:  linux-restricted-modules-4.15.0-20-generic N/A  linux-backports-modules-4.15.0-20-generic N/A  linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. I see high (70-90%) cpu usage from a kworker thread. Usually kworker/0:1 or kworker/0:2. This does not always happen. On some boots all is fine but once it shows, rebooting does not make it go away. WORKAROUND: Execute: echo "disable" > /sys/firmware/acpi/interrupts/gpe13 ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-19-generic 3.5.0-19.30 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1965 F.... pulseaudio  /dev/snd/pcmC0D0p: mio 1965 F...m pulseaudio Date: Wed Dec 5 22:37:00 2012 HibernationDevice: RESUME=UUID=a371882c-0fe7-45e5-9adb-83da8374bc11 InstallationDate: Installed on 2012-10-10 (55 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C MarkForUpload: True ProcEnviron:  TERM=xterm  PATH=(custom, no user)  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=79674508-93de-43e0-b313-f6a9b480c606 ro crashkernel=384M-2G:64M,2G-:128M acpi_osi=Linux pcie_aspm=force i915.modeset=1 i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.semaphores=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7 PulseList:  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/mio not ours.  No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions:  linux-restricted-modules-3.5.0-19-generic N/A  linux-backports-modules-3.5.0-19-generic N/A  linux-firmware 1.95 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-10-11 (55 days ago) dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions:  linux-restricted-modules-4.15.0-20-generic N/A  linux-backports-modules-4.15.0-20-generic N/A  linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: mio 1568 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=3f9af81f-77f0-4438-9a4b-6722de269cbb InstallationDate: Installed on 2018-05-09 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z7C Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=7c436149-ab84-40d0-919f-032364393f9b ro quiet splash video=VGA1:d nouveau.runpm=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions:  linux-restricted-modules-4.15.0-20-generic N/A  linux-backports-modules-4.15.0-20-generic N/A  linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/02/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P04AAE dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP04AAE:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z7C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.family: ChiefRiver System dmi.product.name: 700Z7C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
2018-05-19 15:09:57 Mio bug watch added https://bugzilla.kernel.org/show_bug.cgi?id=53071
2018-05-19 15:09:57 Mio attachment added dmidecode output https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/5141627/+files/dmidecode.txt
2018-05-19 16:49:55 penalvch tags amd64 apport-bug apport-collected bionic kernel-bug-exists-upstream kernel-bug-exists-upstream-4.17-rc4 quantal regression-potential amd64 apport-bug apport-collected bionic kernel-bug-exists-upstream kernel-bug-exists-upstream-4.17-rc4 needs-filing-upstream quantal
2018-05-22 01:57:37 penalvch tags amd64 apport-bug apport-collected bionic kernel-bug-exists-upstream kernel-bug-exists-upstream-4.17-rc4 needs-filing-upstream quantal amd64 apport-bug apport-collected bionic kernel-bug-exists-upstream kernel-bug-exists-upstream-4.17-rc6 quantal
2018-05-24 16:39:58 Mio attachment added acpidump.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/5143923/+files/acpidump.txt
2019-07-24 21:19:35 Brad Figg tags amd64 apport-bug apport-collected bionic kernel-bug-exists-upstream kernel-bug-exists-upstream-4.17-rc6 quantal amd64 apport-bug apport-collected bionic cscc kernel-bug-exists-upstream kernel-bug-exists-upstream-4.17-rc6 quantal