** Description changed: + [Impact] + not using signal safe logging might make the xserver crashy + + [Test Case] + no simple test case + + [Regression Potential] + very small, support for signal safe logging has been upstream since June 2012. + + -- + When I try to use my Apple Wireless Trackpad it works momentarily and then quits. Looking in my /var/log/Xorg.0.log file I found the following: [ 268.617] (--) synaptics: Apple Wireless Trackpad: touchpad found (EE) BUG: triggered 'if (inSignalContext)' (EE) BUG: ../../os/log.c:484 in LogVMessageVerb() (EE) Warning: attempting to log data in a signal unsafe manner while in signal context. Please update to check inSignalContext and/or use LogMessageVerbSigSafe() or ErrorFSigSafe(). The offending log format message is: %s: Read error %s - (EE) + (EE) (EE) Backtrace: (EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x7f4398324e76] (EE) 1: /usr/bin/X (LogVMessageVerb+0x195) [0x7f43983301b5] (EE) 2: /usr/bin/X (xf86MsgVerb+0x82) [0x7f439821c592] (EE) 3: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f438dc9c000+0xc86d) [0x7f438dca886d] (EE) 4: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f438dc9c000+0x6fea) [0x7f438dca2fea] (EE) 5: /usr/bin/X (0x7f439817c000+0x93837) [0x7f439820f837] (EE) 6: /usr/bin/X (0x7f439817c000+0xbd018) [0x7f4398239018] (EE) 7: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f43974a2000+0xfbb0) [0x7f43974b1bb0] (EE) 8: /lib/x86_64-linux-gnu/libc.so.6 (__select+0x13) [0x7f43961dc273] (EE) 9: /usr/bin/X (WaitForSomething+0x190) [0x7f4398322290] (EE) 10: /usr/bin/X (0x7f439817c000+0x55861) [0x7f43981d1861] (EE) 11: /usr/bin/X (0x7f439817c000+0x4461a) [0x7f43981c061a] (EE) 12: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5) [0x7f439610dc15] (EE) 13: /usr/bin/X (0x7f439817c000+0x4495d) [0x7f43981c095d] - (EE) + (EE) Apple Wireless Trackpad: Read error No such device This is repeatable all the time. I tried attaching to the Xorg process using gdb and did not receive any additional information. The device did work in Quantal albeit on another system. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xserver-xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-0.4-generic 3.8.0-rc3 Uname: Linux 3.8.0-0-generic x86_64 .tmp.unity.support.test.0: - + ApportVersion: 2.8-0ubuntu1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz Date: Wed Jan 16 18:29:20 2013 DistUpgraded: Fresh install DistroCodename: raring DistroVariant: ubuntu EcryptfsInUse: Yes ExtraDebuggingInterest: Yes GraphicsCard: - NVIDIA Corporation Device [10de:0fc6] (rev a1) (prog-if 00 [VGA controller]) - Subsystem: eVga.com. Corp. Device [3842:2652] + NVIDIA Corporation Device [10de:0fc6] (rev a1) (prog-if 00 [VGA controller]) + Subsystem: eVga.com. Corp. Device [3842:2652] InstallationDate: Installed on 2013-01-16 (0 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130116) MachineType: System manufacturer System Product Name MarkForUpload: True ProcEnviron: - TERM=screen - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=screen + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-0-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/27/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1106 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P8Z77-V LX 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.:bvr1106:bd07/27/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8Z77-VLX:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz 1:0.9.9~daily13.01.14-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.41-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.1-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.1-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.13.1.901-0ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.0.0-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.18-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.6-0ubuntu1 xserver.bootTime: Wed Jan 16 17:32:57 2013 xserver.configfile: default xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.13.1.901-0ubuntu1 xserver.video_driver: nouveau
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in Ubuntu. https://bugs.launchpad.net/bugs/1100586 Title: unable to use Apple Wireless Trackpad To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1100586/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
