scsi host6: runtime PM trying to activate child device host6 but parent (3-3:1.0) is not active

[Cristian Aravena Romero]

[ 420.107609] scsi host6: runtime PM trying to activate child device host6 but parent (3-3:1.0) is not active

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: linux-image-4.8.0-19-lowlatency 4.8.0-19.21
ProcVersionSignature: Ubuntu 4.8.0-19.21-lowlatency 4.8.0-rc8
Uname: Linux 4.8.0-19-lowlatency x86_64
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0p: caravena 2728 F...m pulseaudio
 /dev/snd/controlC0: caravena 2728 F.... pulseaudio
CurrentDesktop: GNOME
Date: Thu Oct 6 13:16:46 2016
HibernationDevice: RESUME=UUID=360bd2d2-4f44-4311-86d6-4781ac81ee87
InstallationDate: Installed on 2015-07-26 (438 days ago)
InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150723)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.8.0-19-lowlatency root=UUID=4f4435ca-b877-47a5-9065-3dd624c0514e ro rootflags=subvol=@ quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.8.0-19-lowlatency N/A
 linux-backports-modules-4.8.0-19-lowlatency N/A
 linux-firmware 1.161
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/15/2013
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P14AAJ
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 530U3C/530U4C
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.8 kernel[0].

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'.

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/v4.8

[Vijay (vijaymeu)]

I have a similar problem: I cannot even boot my computer(Thinkpad X220) from a live usb of 16.10. See this screenshot: http://imgur.com/a/nITS0

Apologies for the screen glare.

[scott mowerson (smowerson)]

I have this problem as well. Was already running 16.10 Development branch successfully, I think that when 16.10 was released that the next sudo apt update / upgrade changed something. I started getting errors that updates needed to be applied, but some lock file was read-only; then whole screen dimmed and keyboard and mouse was unable to do anything (I could still move mouse pointer around screen but unable to click anything). After 15 minutes I noticed that the time display was frozen (15 mins late) and attempted a reboot. I was running KDE Plasma Desktop. But I also had gnome installed. Now I am unable to boot into the sign in screen. Boot process freezing during initialization of Ubuntu 1st error I get is:
[ 2.859598] SCSI host8: runtime PM trying to activate child device host8 but parent (12-1:1.0) is not active
[ 36.308445] ata8.00: exception Emask 0x52 SAct 0x0 SErr 0xffffffff action 0xe frozen

Sorry, I can't transcribe any more manually, but rest of messages are ata8.00 and ata7.00 errors.

Final line before computer gives up is:
[ 36.450198] ata7.00: status: { DRDY }

Then it is stuck on the blinking cursor.

Tried to reboot into recovery, same thing happened.

Once it is stuck, I have to push reset button, or power PC off completely.
Upon reboot, same thing happened, except when I used UEFI to boot from another disk, but that's FreeBSD ZFS Boot, that I am no longer use (don't have password for any more).

At this point I'm not sure what could possibly recover my data from the Ubuntu partition.

[scott mowerson (smowerson)]

I am not running the low latency kernel, just generic kernel. I was successfully using both AMD CPU (proprietary driver) AND the NVIDIA proprietary driver.
I tried tweaking the UEFI settings, but made things worse. So I switched the settings back.