kernel uas module cannot allocate memory with more than two USB disks

[Jason Duerstock]

See https://bugzilla.kernel.org/show_bug.cgi?id=177551

Patch is included. Please merge this patch into 4.8.0 for Ubuntu 16.10.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: linux-image-4.8.0-39-generic 4.8.0-39.42
ProcVersionSignature: Ubuntu 4.8.0-39.42-generic 4.8.17
Uname: Linux 4.8.0-39-generic x86_64
ApportVersion: 2.20.3-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Thu Feb 23 19:54:42 2017
HibernationDevice: RESUME=UUID=4c961713-40a8-4bb4-af57-9074c1016a4f
InstallationDate: Installed on 2016-11-12 (103 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: HP HP Pavilion Notebook
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-39-generic.efi.signed root=UUID=dc70bb57-65b3-4439-9947-a2891f8f07c9 ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-4.8.0-39-generic N/A
 linux-backports-modules-4.8.0-39-generic N/A
 linux-firmware 1.161.1
SourcePackage: linux
UpgradeStatus: Upgraded to yakkety on 2016-11-12 (103 days ago)
dmi.bios.date: 09/04/2016
dmi.bios.vendor: Insyde
dmi.bios.version: F.21
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 8215
dmi.board.vendor: HP
dmi.board.version: 83.14
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.21:bd09/04/2016:svnHP:pnHPPavilionNotebook:pvrType1ProductConfigId:rvnHP:rn8215:rvr83.14:cvnHP:ct10:cvrChassisVersion:
dmi.product.name: HP Pavilion Notebook
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

I built a test kernel with a pick of commit a810007afe239. The test kernel can be downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1667536/

Can you test this kernel and see if it resolves this bug?

[Jason Duerstock (evilmoo)]

So I tried this kernel and it dumped me to the (initramfs) prompt, and complained about some sort of PKCS#7 error? Is this because the kernel isn't signed? How do I proceed?

Thanks

Jason

[Joseph Salisbury (jsalisbury)]

I built another test kernel. It can be downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1667536/

Can you test this kernel and see if it resolves this bug and/or runs into the issue you hit in comment #4?