This change was made by a bot. ** Changed in: linux (Ubuntu) Status: New => Confirmed
-- 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/1487769 Title: Task hung when using GPU Status in linux package in Ubuntu: Confirmed Bug description: When I try to run the game Team Fortress 2 (freely available from Steam) with linux-generic kernel and free Radeonsi Gallium driver from Mesa, latest version updated from a PPA (https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers), the game hungs at the loading screen, won't die with SIGKILL, and will print periodically this message in dmesg: [ 910.474207] radeon 0000:01:00.0: bo ffff88006da3bc00 va 0x00000323bc conflict with (bo ffff8800647f0000 0x00000323bc 0x00000323bc) [ 1080.007000] INFO: task hl2_linux:2675 blocked for more than 120 seconds. [ 1080.007003] Tainted: G OE 3.19.0-25-generic #26-Ubuntu [ 1080.007004] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1080.007004] hl2_linux D ffff8801987cfcb8 0 2675 2672 0x20020000 [ 1080.007007] ffff8801987cfcb8 ffff88019930ce80 0000000000014240 ffff8801987cffd8 [ 1080.007008] 0000000000014240 ffff8801a82993a0 ffff88019930ce80 0000000000200046 [ 1080.007009] ffff88006da3bdf0 ffff88006da3bdf4 ffff88019930ce80 00000000ffffffff [ 1080.007011] Call Trace: [ 1080.007017] [<ffffffff817c71b9>] schedule_preempt_disabled+0x29/0x70 [ 1080.007019] [<ffffffff817c9075>] __mutex_lock_slowpath+0x95/0x100 [ 1080.007020] [<ffffffff817c9103>] mutex_lock+0x23/0x40 [ 1080.007035] [<ffffffffc0b6f0b0>] radeon_gem_object_close+0x70/0x120 [radeon] [ 1080.007042] [<ffffffffc06faa6c>] drm_gem_handle_delete+0xac/0x100 [drm] [ 1080.007044] [<ffffffff811f72c5>] ? __sb_end_write+0x35/0x70 [ 1080.007048] [<ffffffffc06fb125>] drm_gem_close_ioctl+0x25/0x30 [drm] [ 1080.007052] [<ffffffffc06fba6f>] drm_ioctl+0x1df/0x680 [drm] [ 1080.007054] [<ffffffff81234dde>] ? fsnotify+0x37e/0x530 [ 1080.007062] [<ffffffffc0718775>] drm_compat_ioctl+0x35/0x40 [drm] [ 1080.007071] [<ffffffffc0c342f5>] radeon_kms_compat_ioctl+0x25/0x30 [radeon] [ 1080.007073] [<ffffffff81249b20>] compat_SyS_ioctl+0xc0/0x320 [ 1080.007075] [<ffffffff817cdf2a>] sysenter_dispatch+0x7/0x21 Installing linux-lowlatency solved the problem. My GPU is reported from mesa as being a AMD TAHITI. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-generic 3.19.0.26.25 ProcVersionSignature: Ubuntu 3.19.0-26.28-lowlatency 3.19.8-ckt4 Uname: Linux 3.19.0-26-lowlatency x86_64 ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC3: lucas 3705 F.... pulseaudio /dev/snd/controlC2: lucas 3705 F.... pulseaudio /dev/snd/controlC1: lucas 3705 F.... pulseaudio /dev/snd/controlC0: lucas 3705 F.... pulseaudio CurrentDesktop: XFCE Date: Sat Aug 22 17:22:25 2015 HibernationDevice: RESUME=UUID=d49e649c-f1dc-44c4-abd1-357220cf8a95 InstallationDate: Installed on 2015-07-05 (48 days ago) InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. Z97M-D3H ProcFB: 0 radeondrmfb 1 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-lowlatency root=UUID=c0557b65-d473-42d2-96e3-5546f8923821 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-26-lowlatency N/A linux-backports-modules-3.19.0-26-lowlatency N/A linux-firmware 1.143.3 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] Arquivo ou diretório não encontrado: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/24/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z97M-D3H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF2:bd04/24/2014:svnGigabyteTechnologyCo.,Ltd.:pnZ97M-D3H:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ97M-D3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: Z97M-D3H dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1487769/+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