Public bug reported:
After upgrading to Maverick the computer freezes unless a key is pressed
or mouse moved.
On boot the screen goes blank and disk activity stops. Holding down a
key like Alt allows the boot to progress and the splash screen appears.
Releasing the key causes the boot process to freeze (after about 1
second) until a key is pressed and held again. It seems any key work for
this process.
Once booted the problem persists. Even in a VT you can see the freeze
because unless keys are pressed the cursor stops flashing.
Connecting to a network improves the situation and the machine freezes
less often. Presumably because of the interrupts caused by the network
device. For example setting up a 0.5 second ping to a remote machine
seems to stop the system hanging entirely.
Playing audio also demonstrates the freeze. After a few seconds the
audio gets stuck in an endless loop, at least until a key is pressed.
Moving the mouse also unfreezes the system, as does pressing the power
button, unplugging or plugging in a USB bluetooth dongle.
All this suggests to me that hardware interrupts unfreeeze the machine,
otherwise it's totally frozen.
Booting up with the old Lucid kernel which was left in the boot menu
makes the problem go away and the system seems to run fine.
I don't see anything useful in the dmesg output. At least nothing
obvious. I was expecting to see things like soft lockup messages but
there are none.
I have also tried the mainline kernel 2.6.36-999-generic and see the
same problem as the Maverick stock kernel.
Adding nohz=off to the kernel commandline seems to solve the problem but
apparently this ruins the battery life (I haven't run like this for long
enough to find out)
I hope this is enough information. Thanks!
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-20-generic 2.6.35-20.29
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-20.29-generic 2.6.35.4
Uname: Linux 2.6.35-20-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: paul 1653 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0x40a00000 irq 46'
Mixer name : 'Realtek ALC272'
Components : 'HDA:10ec0272,1179ff30,00100001'
Controls : 17
Simple ctrls : 10
Date: Tue Sep 14 21:33:02 2010
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=21a678a3-3892-4a2d-8bc3-37db4304f997
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
MachineType: TOSHIBA TOSHIBA NB300
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-20-generic
root=UUID=bd7d612b-958e-4b29-9cb4-1ec306d8330f ro quiet splash
ProcEnviron:
PATH=(custom, user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
SourcePackage: linux
dmi.bios.date: 12/08/2009
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V1.20
dmi.board.name: NPVAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.asset.tag: *
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnTOSHIBA:bvrV1.20:bd12/08/2009:svnTOSHIBA:pnTOSHIBANB300:pvrPLL3EE-00D00YEN:rvnTOSHIBA:rnNPVAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: TOSHIBA NB300
dmi.product.version: PLL3EE-00D00YEN
dmi.sys.vendor: TOSHIBA
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 kernel-config maverick needs-upstream-testing
regression-potential ubuntu-une
--
Freeze on Toshiba NB300 without external interrupts
https://bugs.launchpad.net/bugs/638434
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
