[Bug 600563] [NEW] System partial freeze minutes after startup.

[Andrew Read]

Public bug reported:

Running Ubuntu 10.4 Netbook Edition on a Samsung N140 with the latest kernel installed (linux-image-2.6.32-22-generic) or any of the previous kernels including the previous distribution release (Ubuntu 8.10 Netbook Remix) a partial system freeze occurs. During the freeze the cursor can still be moved but it is not possible to interact with the system, after about 1 minute the system resumes without any further issues. If any keystrokes were made or mouse clicks made they will be executed in sequence after this 1 minute freeze. This freeze usually occurs after 5 minutes of system start up, demesg reports issues with an ata device.
In one instant of this freeze on another netbook of the same model this issue occurred in the middle of a package installation, system files became corrupted and non recoverable requiring a complete re installation of Ubuntu.

Here I believe are the significant entries from dmesg:

[  236.812621] Monitor-Mwait will be used to enter C-2 state
[  236.812641] Marking TSC unstable due to TSC halts in idle
[  236.815834] Switching to clocksource hpet
[  278.816169] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[  278.816191] ata1.00: failed command: WRITE DMA
[  278.816221] ata1.00: cmd ca/00:08:c0:b8:0d/00:00:00:00:00/e5 tag 0 dma 4096 out
[  278.816227]          res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
[  278.816241] ata1.00: status: { DRDY }
[  283.856089] ata1: link is slow to respond, please be patient (ready=0)
[  288.840087] ata1: device not ready (errno=-16), forcing hardreset
[  288.840111] ata1: soft resetting link
[  289.206453] ata1.00: configured for UDMA/133
[  289.206473] ata1.00: device reported invalid CHS sector 0
[  289.206505] ata1: EH complete

I hope this information is of use, please let me know if there are any
tests that I can perform to assist.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image (not installed)
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  andrew     1052 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0440000 irq 22'
   Mixer name	: 'Realtek ALC269'
   Components	: 'HDA:10ec0269,144dc062,00100004'
   Controls      : 13
   Simple ctrls  : 8
Date: Thu Jul  1 11:33:56 2010
HibernationDevice: RESUME=UUID=d0dc2263-09ba-4b68-80f4-89ff7ca3a1f6
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
MachineType: SAMSUNG ELECTRONICS CO., LTD. N140
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=09bdbbba-ff02-4fb7-b498-d599a306bf57 ro quiet splash
ProcEnviron:
 LANG=en_GB.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34
RfKill:
 0: hci0: Bluetooth
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: linux
dmi.bios.date: 01/10/2010
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 05CU.M021.20100110.JIP
dmi.board.name: N140
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr05CU.M021.20100110.JIP:bd01/10/2010:svnSAMSUNGELECTRONICSCO.,LTD.:pnN140:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnN140:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: N140
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 lucid needs-upstream-testing ubuntu-une

-- 
System partial freeze minutes after startup.
https://bugs.launchpad.net/bugs/600563
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