Public bug reported:
After upgrade from kubuntu 10.10 to kubuntu 11.04 (amd64) tasks hang in "disk
sleep" status.
dmesg reports messages like
> INFO: task knotify4:2567 blocked for more than 120 seconds.
Normal desktop apps fail, and cause the error message (eg digikam, amarok,
knotify4, dolphin)
kernels used, and the result are:
2.6.38-8-generic - problem IS present (this is the Natty generic kernel)
2.6.38-8-server - problem IS present (this is the Natty server kernel)
2.6.38-02063804 - problem IS present (this is the mainline kernel)
2.6.35-28-generic - problem is NOT evident (this is the Maverick generic
kernel)
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image 2.6.38.8.22
ProcVersionSignature: Ubuntu 2.6.35-28.50-generic 2.6.35.11
Uname: Linux 2.6.35-28-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: stephen 2852 F.... pulseaudio
/dev/snd/controlC1: stephen 2852 F.... pulseaudio
/dev/snd/controlC0: stephen 2852 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'SB'/'HDA ATI SB at 0xfe024000 irq 16'
Mixer name : 'Realtek ALC889A'
Components : 'HDA:10ec0885,1458a102,00100101'
Controls : 39
Simple ctrls : 22
Card1.Amixer.info:
Card hw:1 'U0x46d0x807'/'USB Device 0x46d:0x807 at usb-0000:00:12.2-1, high
speed'
Mixer name : 'USB Mixer'
Components : 'USB046d:0807'
Controls : 2
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 6144
Mono: Capture 6144 [100%] [30.00dB] [on]
Card2.Amixer.info:
Card hw:2 'CX8811'/'Conexant CX8811 at 0xf9000000'
Mixer name : 'CX88'
Components : ''
Controls : 3
Simple ctrls : 2
Date: Sun May 1 20:19:45 2011
HibernationDevice: RESUME=UUID=4760f9c8-efe2-4d08-951f-19f3765dde23
MachineType: Gigabyte Technology Co., Ltd. GA-MA790X-UD4P
ProcEnviron:
LANGUAGE=
PATH=(custom, user)
LANG=en_AU.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-28-generic
root=UUID=059a7c5a-ff5c-4fd4-bbb6-7ee66545f8d5 ro
RelatedPackageVersions:
linux-restricted-modules-2.6.35-28-generic N/A
linux-backports-modules-2.6.35-28-generic N/A
linux-firmware 1.52
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/20/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F10a
dmi.board.name: GA-MA790X-UD4P
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.:bvrF10a:bd04/20/2010:svnGigabyteTechnologyCo.,Ltd.:pnGA-MA790X-UD4P:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-MA790X-UD4P:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-MA790X-UD4P
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug natty
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https://bugs.launchpad.net/bugs/774773
Title:
Multiple Tasks - "blocked for more than 120 seconds" INFO message
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