Public bug reported: In Debian this problem manifests as a system freeze, but in Ubuntu it shows up as screen corruption. I reported it to Debian as
linux-image-2.6.32-5-amd64: kernel freeze http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607495 I put together a script called reproduce-bug.sh that does all the work for you. This script doesn't require sudo or other enhanced proviledges to run. Basically you run the script in an empty directory writeable by you, and it will git clone v3c, treedb, meta-treedb and v3c-repo into their own folders and create a "sandbox" folder to install them to. Then it will "make && make install" the packages into the sandbox. These packages aren't large and with a 1-2GHz machine with broadband you should get to the "problem" prompt in < 5 minutes. The problem stage is running "make check" in v3c-repo, so there's a prompt asking you to <Ctrl>-C to abort, enter to proceed. If you reproduced the problem then you will have to wait a few minutes while all available memory is consumed at which point the test program fails, after which your desktop has to be paged back in. I'm not even sure it's a stack overflow problem as debugging it with kdbg doesn't help. When the test ultimately finishes you will notice screen corruption on your desktop - I would recommend rebooting. ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: linux-image (not installed) Regression: No Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.32-26.48-generic 2.6.32.24+drm33.11 Uname: Linux 2.6.32-26-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: contact 2109 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xd2400000 irq 22' Mixer name : 'Conexant CX20561 (Hermosa)' Components : 'HDA:14f15051,103c30d9,00100000' Controls : 12 Simple ctrls : 6 Date: Sun Dec 19 03:04:27 2010 HibernationDevice: RESUME=UUID=0e5dc5f0-1209-4c23-8178-d270d1b23e0f MachineType: Hewlett-Packard Compaq Presario A900 Notebook PC ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-26-generic root=/dev/mapper/VgCompaq-squeeze ro quiet vga=0x317 ProcEnviron: LANGUAGE= LANG=en_IE.utf8 SHELL=/bin/bash RelatedPackageVersions: linux-firmware 1.38 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux dmi.bios.date: 09/25/2008 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.34 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 30ED dmi.board.vendor: Hewlett-Packard dmi.board.version: 83.21 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: N/A dmi.modalias: dmi:bvnHewlett-Packard:bvrF.34:bd09/25/2008:svnHewlett-Packard:pnCompaqPresarioA900NotebookPC:pvrF.34:rvnHewlett-Packard:rn30ED:rvr83.21:cvnHewlett-Packard:ct10:cvrN/A: dmi.product.name: Compaq Presario A900 Notebook PC dmi.product.version: F.34 dmi.sys.vendor: Hewlett-Packard ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug kernel-sound maverick needs-upstream-testing -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/692100 Title: system instability caused by unpriviledged program -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
