I was instructed to test the latest development release (14.04) to determine whether a bug (soft lockup bug), which still exists in 12.04 LTS, is in the development release and/or the mainline kernel for the development release.
My tests suggest that the bug is fixed in 14.04 (the development release) and in the mainline kernel for the development release. The fix is to be applied (backported; if I understand the meaning of "backport") to the LTS version - 12.04 LTS. The bug, as reported, is valid, and has existed on this system for more than a year. The test is not conclusive, but, after 540 suspend/resumes it can be tentatively assumed that the bug no longer exists in the development release (14.04) or the mainline kernel for the development release. The bug would certainly show up in 12.04 after 540 suspend/resumes. -- 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/1036456 Title: [Fujitsu LIFEBOOK AH530] BUG: soft lockup - CPU#0 stuck for 22s! Status in “linux” package in Ubuntu: Incomplete Bug description: 60% of the time computer will not resume from suspend when lid is opened. Display begins with ACPI errors and Device PNP0C0D:00 errors and then a cycle of text after the "BUG: soft lockup - CPU#0 stuck for 22s!" error. Additionally, yelp process consumed 100% of each of the 4 processors in sequence for a long time after this event last occured. Terminal will not take administrator's password at all - the cursur won't move. Therefore, "sudo lspci -vnvn > lspci-vnvn.log" could not be done at all. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-29-generic-pae 3.2.0-29.46 ProcVersionSignature: Ubuntu 3.2.0-29.46-generic-pae 3.2.24 Uname: Linux 3.2.0-29-generic-pae i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu12 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: lfeq 1628 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf0700000 irq 44' Mixer name : 'Intel IbexPeak HDMI' Components : 'HDA:10ec0269,10cf0200,00100004 HDA:80862804,80860101,00100000' Controls : 23 Simple ctrls : 10 Date: Mon Aug 13 20:28:09 2012 HibernationDevice: RESUME=UUID=306aab40-d7f0-4c2f-95bb-bab8bcb6da07 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423) MachineType: FUJITSU LIFEBOOK AH530 ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic-pae root=UUID=5e649b17-1a99-456b-bd08-ef7aec3da8c1 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.2.0-29-generic-pae N/A linux-backports-modules-3.2.0-29-generic-pae N/A linux-firmware 1.79 SourcePackage: linux StagingDrivers: mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/19/2010 dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd. dmi.bios.version: Version 1.16 dmi.board.name: FJNBB06 dmi.board.vendor: FUJITSU dmi.chassis.type: 10 dmi.chassis.vendor: FUJITSU dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvrVersion1.16:bd08/19/2010:svnFUJITSU:pnLIFEBOOKAH530:pvr:rvnFUJITSU:rnFJNBB06:rvr:cvnFUJITSU:ct10:cvr: dmi.product.name: LIFEBOOK AH530 dmi.sys.vendor: FUJITSU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1036456/+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
