I built the next test kernel, up to the following commit: dbb563ec7b143323dd31520ab08c08394bc13381
The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1249719 Can you test that kernel and report back if it has the bug or not. I will build the next test kernel based on your test results. Thanks in advance -- 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/1249719 Title: Kernel oops - BUG: unable to handle kernel NULL pointer dereference at 0000000000000030; IP: [<ffffffff811c07c7>] touch_atime+0x17/0x140 Status in “linux” package in Ubuntu: Confirmed Bug description: Since 3.11.0-13-generic, I've been encountering the following kernel oops. I can trigger it quite reliably by watching full-screen videos on YouTube using google-chrome (Version 31.0.1650.48) for roughly 10 minutes. Once the oops happens, the system remains up, but certain programs (like top) start hanging and a reboot is needed to restore full functionality. I've tried using 3.12.0-999-generic (3.12.0-999.201311080433), but get the same problem there. I don't get the oops when booting into 3.11.0-12-generic, so I suspect the problem was introduced in 3.11.0-13-generic (especially since I see there were some changes made related to the shmat system call). Attached is the oops from dmesg. The EIP location and stack-trace are identical for all the oops I've seen so far. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-13-generic 3.11.0-13.20 ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6 Uname: Linux 3.11.0-13-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: rick 1421 F.... pulseaudio /dev/snd/controlC1: rick 1421 F.... pulseaudio /dev/snd/controlC0: rick 1421 F.... pulseaudio Date: Sat Nov 9 23:24:33 2013 HibernationDevice: RESUME=UUID=0ad92a6e-2969-424f-b469-faaa9f2ec20f InstallationDate: Installed on 2012-10-19 (387 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. X58A-UD3R MarkForUpload: True ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-13-generic root=UUID=cf7d6665-f4a9-4be8-a12d-c72a985ea5eb ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-13-generic N/A linux-backports-modules-3.11.0-13-generic N/A linux-firmware 1.116 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-10-19 (22 days ago) dmi.bios.date: 03/11/2010 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F5 dmi.board.name: X58A-UD3R dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF5:bd03/11/2010:svnGigabyteTechnologyCo.,Ltd.:pnX58A-UD3R:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnX58A-UD3R:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: X58A-UD3R dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1249719/+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