Public bug reported:
Upon upgrading from maverick to natty, suspend to ram broke on my
system.
When I suspend the system, it starts to suspend, but does not power all
the way down. The CPU fans keep running, and the display remains
active, but no keyboard or mouse activity is accepted. The only way out
of it is to reset/power cycle the machine. I tried suspending with
pm_trace active, but nothing useful was captured in the dmesg after
reset.
I booted the natty livecd, and ran checkbox through the
suspend_30_cycles test while running from the livecd. This test passed.
I suspected the nvidia driver initially, but ruled it out after
reproducing the problem with the nvidia module unloaded. So that left
some other difference between the livecd running kernel and my installed
system. I booted the livecd again, and reproduced the problem by
installing the mdadm package and activating RAID1 devices.
To reproduce:
boot livecd, drop to console
apt-get install mdadm
mdadm --auto-detect
cat /proc/mdstat # verify that the devices were detected
pm-suspend
and here the system hangs. I did this 5 times in a row and it hung
every single time.
Obviously it was in the middle of a reconstruct on the RAID1 device each
time, but I do not think that matters. It hangs on the "installed"
system even if there is no reconstruction running.
I don't know how to further dig into this, but I will be happy to
provide more information.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.42
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mschout 1896 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfb200000 irq 44'
Mixer name : 'Realtek ALC888'
Components : 'HDA:10ec0888,8086d608,00100001'
Controls : 26
Simple ctrls : 15
Date: Fri May 6 13:37:38 2011
HibernationDevice: RESUME=UUID=6a0de2fd-c2e1-4853-8077-4e10e0b3854e
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcEnviron:
SHELL=/bin/bash
PATH=(custom, user)
LANG=en_US.UTF-8
LANGUAGE=en_US:en
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-8-generic
root=/dev/mapper/vg00-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-2.6.38-8-generic N/A
linux-backports-modules-2.6.38-8-generic N/A
linux-firmware 1.52
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
UserAsoundrc:
pcm.!default { type pulse }
ctl.!default { type pulse }
pcm.pulse { type pulse }
ctl.pulse { type pulse }
dmi.bios.date: 03/18/2010
dmi.bios.vendor: Intel Corp.
dmi.bios.version: PRG3110H.86A.0071.2010.0318.1704
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DG31PR
dmi.board.vendor: Intel Corporation
dmi.board.version: AAD97573-302
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnIntelCorp.:bvrPRG3110H.86A.0071.2010.0318.1704:bd03/18/2010:svn:pn:pvr:rvnIntelCorporation:rnDG31PR:rvrAAD97573-302:cvn:ct3:cvr:
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug natty running-unity
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https://bugs.launchpad.net/bugs/778682
Title:
mdadm/raid1 breaks suspend to ram natty
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