Public bug reported: I have quite a lot of these and they look bad.
The machine is sometimes abruptly powering off, has suspend/resume failures, and reliability issues with the Intel HD5500 X driver. Here is context: Mar 22 07:43:56 raven kernel: [ 1698.857711] PM: Preparing system for mem sleep Mar 22 07:43:56 raven kernel: [ 1698.858208] Freezing user space processes ... (elapsed 0.205 seconds) done. Mar 22 07:43:56 raven kernel: [ 1699.064161] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. Mar 22 07:43:56 raven kernel: [ 1699.065656] PM: Entering mem sleep Mar 22 07:43:56 raven kernel: [ 1699.065682] Suspending console(s) (use no_console_suspend to debug) Mar 22 07:43:56 raven kernel: [ 1699.067510] sd 2:0:0:0: [sdb] Synchronizing SCSI cache Mar 22 07:43:56 raven kernel: [ 1699.067534] sd 0:0:0:0: [sda] Synchronizing SCSI cache Mar 22 07:43:56 raven kernel: [ 1699.070280] sd 0:0:0:0: [sda] Stopping disk Mar 22 07:43:56 raven kernel: [ 1699.071291] sd 2:0:0:0: [sdb] Stopping disk Mar 22 07:43:56 raven kernel: [ 1699.268598] e1000e: EEE TX LPI TIMER: 00000011 Mar 22 07:43:56 raven kernel: [ 1700.280816] [drm:stop_ring [i915]] *ERROR* render ring : timed out trying to stop ring Mar 22 07:43:56 raven kernel: [ 1700.616959] PM: suspend of devices complete after 1550.168 msecs Mar 22 07:43:56 raven kernel: [ 1700.657049] PM: late suspend of devices complete after 40.049 msecs Mar 22 07:43:56 raven kernel: [ 1700.659950] ehci-pci 0000:00:1d.0: System wakeup enabled by ACPI Mar 22 07:43:56 raven kernel: [ 1700.660144] xhci_hcd 0000:00:14.0: System wakeup enabled by ACPI Mar 22 07:43:56 raven kernel: [ 1700.673474] PM: noirq suspend of devices complete after 16.411 msecs Mar 22 07:43:56 raven kernel: [ 1700.674084] ACPI: Preparing to enter system sleep state S3 Mar 22 07:43:56 raven kernel: [ 1700.816951] PM: Saving platform NVS memory Mar 22 07:43:56 raven kernel: [ 1700.816961] Disabling non-boot CPUs ... Mar 22 07:43:56 raven kernel: [ 1700.816994] intel_pstate CPU 1 exiting Mar 22 07:43:56 raven kernel: [ 1700.818362] kvm: disabling virtualization on CPU1 Mar 22 07:43:56 raven kernel: [ 1700.818377] smpboot: CPU 1 is now offline Mar 22 07:43:56 raven kernel: [ 1700.819964] intel_pstate CPU 2 exiting Mar 22 07:43:56 raven kernel: [ 1700.821291] kvm: disabling virtualization on CPU2 Mar 22 07:43:56 raven kernel: [ 1700.822331] smpboot: CPU 2 is now offline Mar 22 07:43:56 raven kernel: [ 1700.822852] intel_pstate CPU 3 exiting Mar 22 07:43:56 raven kernel: [ 1700.823049] Broke affinity for irq 23 Mar 22 07:43:56 raven kernel: [ 1700.823058] Broke affinity for irq 44 Mar 22 07:43:56 raven kernel: [ 1700.824085] kvm: disabling virtualization on CPU3 Mar 22 07:43:56 raven kernel: [ 1700.824103] smpboot: CPU 3 is now offline ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-9-generic 3.19.0-9.9 ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1 Uname: Linux 3.19.0-9-generic x86_64 ApportVersion: 2.16.2-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: shevek 2677 F.... pulseaudio /dev/snd/controlC0: shevek 2677 F.... pulseaudio CurrentDesktop: XFCE Date: Sun Mar 22 20:42:40 2015 HibernationDevice: RESUME=UUID=cd97b65a-0d29-4887-a0e6-7c9eea8707b0 InstallationDate: Installed on 2015-03-05 (17 days ago) InstallationMedia: Xubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) MachineType: LENOVO 20CKCTO1WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-9-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro quiet splash crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-9-generic N/A linux-backports-modules-3.19.0-9-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-03-19 (3 days ago) dmi.bios.date: 12/26/2014 dmi.bios.vendor: LENOVO dmi.bios.version: N11ET29W (1.05 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CKCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0E50512 STD dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN11ET29W(1.05):bd12/26/2014:svnLENOVO:pn20CKCTO1WW:pvrThinkPadT550:rvnLENOVO:rn20CKCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20CKCTO1WW dmi.product.version: ThinkPad T550 dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug vivid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1435131 Title: [drm:stop_ring [i915]] *ERROR* render ring : timed out trying to stop ring Status in linux package in Ubuntu: New Bug description: I have quite a lot of these and they look bad. The machine is sometimes abruptly powering off, has suspend/resume failures, and reliability issues with the Intel HD5500 X driver. Here is context: Mar 22 07:43:56 raven kernel: [ 1698.857711] PM: Preparing system for mem sleep Mar 22 07:43:56 raven kernel: [ 1698.858208] Freezing user space processes ... (elapsed 0.205 seconds) done. Mar 22 07:43:56 raven kernel: [ 1699.064161] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. Mar 22 07:43:56 raven kernel: [ 1699.065656] PM: Entering mem sleep Mar 22 07:43:56 raven kernel: [ 1699.065682] Suspending console(s) (use no_console_suspend to debug) Mar 22 07:43:56 raven kernel: [ 1699.067510] sd 2:0:0:0: [sdb] Synchronizing SCSI cache Mar 22 07:43:56 raven kernel: [ 1699.067534] sd 0:0:0:0: [sda] Synchronizing SCSI cache Mar 22 07:43:56 raven kernel: [ 1699.070280] sd 0:0:0:0: [sda] Stopping disk Mar 22 07:43:56 raven kernel: [ 1699.071291] sd 2:0:0:0: [sdb] Stopping disk Mar 22 07:43:56 raven kernel: [ 1699.268598] e1000e: EEE TX LPI TIMER: 00000011 Mar 22 07:43:56 raven kernel: [ 1700.280816] [drm:stop_ring [i915]] *ERROR* render ring : timed out trying to stop ring Mar 22 07:43:56 raven kernel: [ 1700.616959] PM: suspend of devices complete after 1550.168 msecs Mar 22 07:43:56 raven kernel: [ 1700.657049] PM: late suspend of devices complete after 40.049 msecs Mar 22 07:43:56 raven kernel: [ 1700.659950] ehci-pci 0000:00:1d.0: System wakeup enabled by ACPI Mar 22 07:43:56 raven kernel: [ 1700.660144] xhci_hcd 0000:00:14.0: System wakeup enabled by ACPI Mar 22 07:43:56 raven kernel: [ 1700.673474] PM: noirq suspend of devices complete after 16.411 msecs Mar 22 07:43:56 raven kernel: [ 1700.674084] ACPI: Preparing to enter system sleep state S3 Mar 22 07:43:56 raven kernel: [ 1700.816951] PM: Saving platform NVS memory Mar 22 07:43:56 raven kernel: [ 1700.816961] Disabling non-boot CPUs ... Mar 22 07:43:56 raven kernel: [ 1700.816994] intel_pstate CPU 1 exiting Mar 22 07:43:56 raven kernel: [ 1700.818362] kvm: disabling virtualization on CPU1 Mar 22 07:43:56 raven kernel: [ 1700.818377] smpboot: CPU 1 is now offline Mar 22 07:43:56 raven kernel: [ 1700.819964] intel_pstate CPU 2 exiting Mar 22 07:43:56 raven kernel: [ 1700.821291] kvm: disabling virtualization on CPU2 Mar 22 07:43:56 raven kernel: [ 1700.822331] smpboot: CPU 2 is now offline Mar 22 07:43:56 raven kernel: [ 1700.822852] intel_pstate CPU 3 exiting Mar 22 07:43:56 raven kernel: [ 1700.823049] Broke affinity for irq 23 Mar 22 07:43:56 raven kernel: [ 1700.823058] Broke affinity for irq 44 Mar 22 07:43:56 raven kernel: [ 1700.824085] kvm: disabling virtualization on CPU3 Mar 22 07:43:56 raven kernel: [ 1700.824103] smpboot: CPU 3 is now offline ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-9-generic 3.19.0-9.9 ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1 Uname: Linux 3.19.0-9-generic x86_64 ApportVersion: 2.16.2-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: shevek 2677 F.... pulseaudio /dev/snd/controlC0: shevek 2677 F.... pulseaudio CurrentDesktop: XFCE Date: Sun Mar 22 20:42:40 2015 HibernationDevice: RESUME=UUID=cd97b65a-0d29-4887-a0e6-7c9eea8707b0 InstallationDate: Installed on 2015-03-05 (17 days ago) InstallationMedia: Xubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) MachineType: LENOVO 20CKCTO1WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-9-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro quiet splash crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-9-generic N/A linux-backports-modules-3.19.0-9-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-03-19 (3 days ago) dmi.bios.date: 12/26/2014 dmi.bios.vendor: LENOVO dmi.bios.version: N11ET29W (1.05 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CKCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0E50512 STD dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN11ET29W(1.05):bd12/26/2014:svnLENOVO:pn20CKCTO1WW:pvrThinkPadT550:rvnLENOVO:rn20CKCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20CKCTO1WW dmi.product.version: ThinkPad T550 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1435131/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp