Public bug reported: This bug may be a duplicate of #569011 (which inexplicably now has a status of fix-released), however there are minor differences.
I have been experiencing occasional (2 or 3 times a day) system hangs under Lucid/10.04 for at least a couple of weeks, with the following symptoms: screen freezes, keyboard/mouse unresponsive (can't toggle keyboard LEDs), can't ssh in, system still responds to pings, can reboot with ALT-SysRq+REISUB. On reboot, I'm unable to locate any relevant error messages in logs from the time the system froze. This is with kernel 2.6.32-22-generic, and I have also tested with upstream 2.6.34-020634-generic, with the same results. The same hardware was stable under jaunty and karmic. I have nvidia-current drivers installed, however, the system can still freeze from a text console with X/desktop disables (sudo stop kdm), thus I don't believe it's graphics driver related. Only pattern to the lock-ups I've noticed is that it's usually during times of heavy CPU load... which usually also has heavy disk load: a large compile, ffmpeg video conversion, running virtualbox, dvd ripping, etc. My system is a dual-core 64-bit Athlon, and I boot from a md- mirrored EXT4 root filesystem. I have virtualbox-3.2 installed, and while running virtualbox with a WinXP client is a good way to help encourage the freeze, I also experience freezes without virtualbox running. Still, I'll try removing it and seeing if I can reproduce without it. I have not run a memtest recently, and will do so as soon as I have a Window to take the system down.... but the hardware has been stable without change for over a year with jaunty/karmic, and there seem to be many users experiencing a range of freezing problems on ubuntuforums: http://ubuntuforums.org/showthread.php?t=1478787 ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: linux-image-2.6.32-22-generic 2.6.32-22.33 Regression: Yes Reproducible: No ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2 Uname: Linux 2.6.32-22-generic x86_64 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: NVidia [HDA NVidia], device 0: VT1708B Analog [VT1708B Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: phil 2441 F.... kmix CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'NVidia'/'HDA NVidia at 0xfce78000 irq 20' Mixer name : 'Nvidia MCP78 HDMI' Components : 'HDA:1106e721,10438345,00100100 HDA:10de0002,10de0101,00100000' Controls : 38 Simple ctrls : 19 Date: Fri May 28 11:35:02 2010 EcryptfsInUse: Yes Frequency: I don't know. HibernationDevice: RESUME=UUID=b9ce8951-a8b2-46a2-9da5-305580e86e70 MachineType: System manufacturer System Product Name ProcCmdLine: root=/dev/md0 ro iommu=noaperture,memaper=4 quiet splash crashkernel=384M-2G:64M,2G-:128M ProcEnviron: LANGUAGE=en_CA:en PATH=(custom, user) LANG=en_CA.UTF-8 SHELL=/bin/bash RelatedPackageVersions: linux-firmware 1.34 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux dmi.bios.date: 03/19/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1502 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M3N78-VM dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1502:bd03/19/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3N78-VM:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug hibernate lucid needs-upstream-testing regression-potential resume -- [lucid] intermittent full system freeze https://bugs.launchpad.net/bugs/586901 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
