[Lenovo IdeaPad Z580] Ubuntu 12.10 x64: Task swapper blocked during boot

Bug #1161057 reported by Viktor Mileikovskyi on 2013-03-27
This bug affects 5 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description

From time to time the boot process of Ubuntu 12.10 hangs after finding usb devices (after first 3 lines of attached LastScreen.txt). After some minutes a last screen (LastScreen.txt) apears (First 3 lines describe last found USB device and are different when different devices connected during boot).
Pressing ctrl+alt+del causes no reaction and power off/on required to reboot.
With best regards.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-generic
ProcVersionSignature: Ubuntu 3.5.0-26.42-generic
Uname: Linux 3.5.0-26-generic x86_64
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
 /dev/snd/controlC1: user 2111 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Date: Wed Mar 27 19:46:08 2013
HibernationDevice: RESUME=UUID=64299d55-2618-438a-bb9d-fdf0624fa02a
InstallationDate: Installed on 2012-11-22 (124 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
 eth2 no wireless extensions.

 lo no wireless extensions.
MachineType: LENOVO IdeaPad Z580
MarkForUpload: True
 0 inteldrmfb
 1 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=a7b62b15-af53-40e9-9550-a3d1808ffc16 ro
 linux-restricted-modules-3.5.0-26-generic N/A
 linux-backports-modules-3.5.0-26-generic N/A
 linux-firmware 1.95
 0: ideapad_wlan: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
StagingDrivers: rts5139
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 5FCN34WW
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Lenovo
dmi.board.vendor: LENOVO
dmi.board.version: Lenovo Z580
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnLENOVO:bvr5FCN34WW:bd06/11/2012:svnLENOVO:pnIdeaPadZ580:pvrLenovoZ580:rvnLENOVO:rnLenovo:rvrLenovoZ580:cvnIntelCorporation:ct9:cvr0.1:
dmi.product.name: IdeaPad Z580
dmi.product.version: Lenovo Z580
dmi.sys.vendor: LENOVO

Viktor Mileikovskyi (v-mil) wrote :
Viktor Mileikovskyi (v-mil) wrote :
Viktor Mileikovskyi (v-mil) wrote :
Joseph Salisbury (jsalisbury) wrote :

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.9 kernel[0] (Not a kernel in the daily directory) and install both the linux-image and linux-image-extra .deb packages.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-rc4-raring/

Changed in linux (Ubuntu):
importance: Undecided → Medium

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed

Many thanks for quick answer!
3.9.0-030900rc4-generic kernel has the same bug. Last screen atached.

Viktor Mileikovskyi (v-mil) wrote :

The same problem found using Lenovo Z480 and Z580 (my is Z580A) with Ubuntu 12.04 and 12.10. See
To workaround they use an old version of kernel: kernel 3.2.0-29-generic.
The same problem with Z580 found at
They found a workaround to remove a battery during boot with AC connection.
I did not try it. There is not so good idea for me but may be a key to solve a problem.
Also the same problem reported at
I try both variant of booting: with and without EFI. No difference.
I replaced a memory from 2+4 GB to 8 GB (Kingston 2x4GB KIT). The regularity of unsuccessful boots does not change.

Viktor Mileikovskyi, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:

where VERSION-NUMBER is the version number of the kernel you tested. For example:

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:

If the mainline kernel does not fix this bug, please add the following tags:

As well, please remove the tag:

If you are unable to test the mainline kernel, please comment as to why specifically you were unable to test it and add the following tags:

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

tags: added: latest-bios-5fcn34ww needs-upstream-testing regression-potential
summary: - Ubuntu 12.10 x64: Task swapper blocked during boot
+ [Lenovo IdeaPad Z580] Ubuntu 12.10 x64: Task swapper blocked during boot
Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Łukasz Sitarski (lucassith) wrote :

I would like to add that 100% workaround for this "Bug" is plugging out your battery. After successful booting you may plug it in again and instead of shutting down the system suspend.

Łukasz Sitarski, if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug Control team, and Ubuntu Bug Squad would like you to please file a new report by executing the following in a terminal:
ubuntu-bug linux

For more on this, please see the Ubuntu Kernel team article:

the Ubuntu Bug Control team and Ubuntu Bug Squad team article:

and Ubuntu Community article:

When opening up the new report, please feel free to subscribe me to it.

Please note, not filing a new report would delay your problem being addressed as quickly as possible.

Thank you for your understanding.

Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
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