[Bug 662946] Re: linux kernel 2.6.35 slows down the whole system because of kslowdxxx processes

[Vincenzo Ampolo]

** Description changed:

  I'm running maverick with kernel:
  
  Linux earth 2.6.35-22-generic #34-Ubuntu SMP Sun Oct 10 09:26:05 UTC
  2010 x86_64 GNU/Linux
  
  I've just the browser opened, top says that my cpu is used a 1-3% and my
  system load is almost 9.60. There is a kslowd001 or kslowd002 or
  kslowd003 which appears in the top screen and it seems the issue which
  makes the system load so high.
  
  The problem is already known and has been reported in many other bug
  reports such as:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/595764
  
- The problem is to switch to a 2.6.36 release where this issue has been
+ The solution is to switch to a 2.6.36 release where this issue has been
  resolved. Please provide a 2.6.36 with the ubuntu patches to fix the
  problem.
  
  Thanks
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: linux-image-2.6.35-22-generic 2.6.35-22.34
  Regression: Yes
  Reproducible: Yes
  ProcVersionSignature: Ubuntu 2.6.35-22.34-generic 2.6.35.4
  Uname: Linux 2.6.35-22-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
  Architecture: amd64
  ArecordDevices:
-  **** List of CAPTURE Hardware Devices ****
-  card 0: Intel [HDA Intel], device 0: ALC262 Analog [ALC262 Analog]
-    Subdevices: 1/1
-    Subdevice #0: subdevice #0
+  **** List of CAPTURE Hardware Devices ****
+  card 0: Intel [HDA Intel], device 0: ALC262 Analog [ALC262 Analog]
+    Subdevices: 1/1
+    Subdevice #0: subdevice #0
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  goshawk    1978 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  goshawk    1978 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
-  Card hw:0 'Intel'/'HDA Intel at 0xd5200000 irq 49'
-    Mixer name	: 'Realtek ALC262'
-    Components	: 'HDA:10ec0262,104d2d00,00100302 HDA:14f12c06,104d1700,00100000'
-    Controls      : 12
-    Simple ctrls  : 8
+  Card hw:0 'Intel'/'HDA Intel at 0xd5200000 irq 49'
+    Mixer name	: 'Realtek ALC262'
+    Components	: 'HDA:10ec0262,104d2d00,00100302 HDA:14f12c06,104d1700,00100000'
+    Controls      : 12
+    Simple ctrls  : 8
  Card1.Amixer.info:
-  Card hw:1 'HDMI'/'HDA ATI HDMI at 0xd0030000 irq 50'
-    Mixer name	: 'ATI R6xx HDMI'
-    Components	: 'HDA:1002aa01,104d2d00,00100000'
-    Controls      : 4
-    Simple ctrls  : 1
+  Card hw:1 'HDMI'/'HDA ATI HDMI at 0xd0030000 irq 50'
+    Mixer name	: 'ATI R6xx HDMI'
+    Components	: 'HDA:1002aa01,104d2d00,00100000'
+    Controls      : 4
+    Simple ctrls  : 1
  Card1.Amixer.values:
-  Simple mixer control 'IEC958',0
-    Capabilities: pswitch pswitch-joined penum
-    Playback channels: Mono
-    Mono: Playback [on]
+  Simple mixer control 'IEC958',0
+    Capabilities: pswitch pswitch-joined penum
+    Playback channels: Mono
+    Mono: Playback [on]
  Date: Mon Oct 18 22:52:37 2010
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=d40958ac-8cf8-4eb9-b97e-b77c74d2d032
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  MachineType: Sony Corporation VGN-SR21M_S
  ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-22-generic root=/dev/sda6 ro quiet splash
  ProcEnviron:
-  LANG=en_US.utf8
-  SHELL=/bin/bash
+  LANG=en_US.utf8
+  SHELL=/bin/bash
  RelatedPackageVersions: linux-firmware 1.38
  SourcePackage: linux
  dmi.bios.date: 08/14/2008
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: R1110Y1
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR1110Y1:bd08/14/2008:svnSonyCorporation:pnVGN-SR21M_S:pvrC600TTSE:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: VGN-SR21M_S
  dmi.product.version: C600TTSE
  dmi.sys.vendor: Sony Corporation

** Bug watch added: Linux Kernel Bug Tracker #16265
   http://bugzilla.kernel.org/show_bug.cgi?id=16265

** Also affects: linux via
   http://bugzilla.kernel.org/show_bug.cgi?id=16265
   Importance: Unknown
       Status: Unknown

-- 
linux kernel 2.6.35 slows down the whole system because of kslowdxxx processes
https://bugs.launchpad.net/bugs/662946
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