boot stalls on USB detection errors

[Steve Roome]

Motherboard is BIOSTAR G41D3+

Bug introduced on upgrade from 3.19.0-66-generic to 4.4.0-34-generic and still present in 4.4.0-36-generic.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-43-generic 4.4.0-43.63
ProcVersionSignature: Ubuntu 4.4.0-43.63-generic 4.4.21
Uname: Linux 4.4.0-43-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: steve 2051 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Oct 20 10:32:56 2016
HibernationDevice: RESUME=UUID=6d895498-1c0a-4191-a346-0652ce718022
InstallationDate: Installed on 2016-02-21 (241 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
MachineType: BIOSTAR Group G41D3+
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-43-generic root=/dev/mapper/ubuntu--vg-root ro acpi_enforce_resources=lax quiet splash
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-43-generic N/A
 linux-backports-modules-4.4.0-43-generic N/A
 linux-firmware 1.157.4
RfKill:

SourcePackage: linux
UpgradeStatus: Upgraded to xenial on 2016-08-19 (61 days ago)
dmi.bios.date: 03/08/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080015
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: G41D3+
dmi.board.vendor: BIOSTAR Group
dmi.board.version: 6.0
dmi.chassis.asset.tag: None
dmi.chassis.type: 3
dmi.chassis.vendor: BIOSTAR Group
dmi.chassis.version: 6.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080015:bd03/08/2011:svnBIOSTARGroup:pnG41D3+:pvr6.0:rvnBIOSTARGroup:rnG41D3+:rvr6.0:cvnBIOSTARGroup:ct3:cvr6.0:
dmi.product.name: G41D3+
dmi.product.version: 6.0
dmi.sys.vendor: BIOSTAR Group

[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 v4.9 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/v4.9-rc1/

[Steve Roome (s-j-roome)]

My (first) attempt at building a mainline kernel was not completely successful. The system booted to the login screen but when I entered the password I got a couple of test patterns and was then returned to the login screen.

This was however enough to confirm that the bug exists upstream. In the copious documentation I have read on the bug reporting process I could not find anything describing how to add a tag to a bug report.

[Steve Roome (s-j-roome)]

Added tag kernel-bug-exists-upstream