ubuntu-x-swat team mailing list archive

[Andrew Bennetts <andrew.bennetts@xxxxxxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-input-synaptics

I noticed my system was a big sluggish, and checked top.  It shows
syndaemon consuming 100% CPU.  Here's the strace:

$ strace -tt -p 2277
Process 2277 attached - interrupt to quit
16:37:33.897168 select(5, [4], NULL, NULL, NULL) = 1 (in [4])
16:37:33.897197 select(5, [4], NULL, NULL, NULL) = 1 (in [4])
16:37:33.897226 select(5, [4], NULL, NULL, NULL) = 1 (in [4])
16:37:33.897255 select(5, [4], NULL, NULL, NULL) = 1 (in [4])
16:37:33.897284 select(5, [4], NULL, NULL, NULL) = 1 (in [4])
…etc…

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-input-synaptics 1.3.99+git20110116.0e27ce3a-0ubuntu11
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2
Uname: Linux 2.6.38-8-generic-pae i686
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,move,resize,imgpng,mousepoll,gnomecompat,place,grid,regex,unitymtgrabhandles,session,snap,animation,wall,workarounds,expo,ezoom,staticswitcher,fade,scale,unityshell]
CompositorRunning: compiz
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
DRM.card0.DP.2:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
DRM.card0.DP.3:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
DRM.card0.HDMI.A.2:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
DRM.card0.HDMI.A.3:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1440x900 1440x900
 edid-base64: AP///////wAwrjZAAAAAAAATAQOAHhN46uWVk1ZPkCgoUFQAAAABAQEBAQEBAQEBAQEBAQEBjiygXFKEHjAwIDYAL74QAAAZjiyg/FKEhzAwIDYAL74QAAAZAAAADwCVCjKVCigWCQBMo0JUAAAA/gBMVE4xNDFCVDA5MDAxAPA=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
Date: Tue Apr 12 16:33:47 2011
DistUpgraded: Log time: 2011-04-11 22:16:29.259690
DistroCodename: natty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/syndaemon
GraphicsCard:
 Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:215a]
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
Lsusb:
 Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 003: ID 17ef:480f Lenovo Integrated Webcam [R5U877]
 Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 2516CTO
ProcEnviron:
 LANGUAGE=en_AU:en
 PATH=(custom, user)
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic-pae root=UUID=e28411fc-b45a-41f4-a66a-bb52788e2589 ro quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xserver-xorg-input-synaptics
UpgradeStatus: Upgraded to natty on 2011-04-11 (0 days ago)
dmi.bios.date: 10/25/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6IET74WW (1.34 )
dmi.board.name: 2516CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6IET74WW(1.34):bd10/25/2010:svnLENOVO:pn2516CTO:pvrThinkPadT410:rvnLENOVO:rn2516CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2516CTO
dmi.product.version: ThinkPad T410
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.4+bzr20110411-0ubuntu1
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

** Affects: xserver-xorg-input-synaptics (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug compiz-0.9 i386 natty running-unity ubuntu

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https://bugs.launchpad.net/bugs/758453

Title:
  syndaemon consuming 100% CPU spinning on select(2)