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Message #30058
[Bug 1252501] Re: Unable to boot xen with iommu
Would it be possible for you to test the latest upstream stable kernel?
Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the
latest v3.11 stable 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'.
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/v3.11.8-saucy/
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Tags added: needs-bisect regression-update
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https://bugs.launchpad.net/bugs/1252501
Title:
Unable to boot xen with iommu
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
This morning, after first installing the package, I was uanble to boot
linux-image-3.11.0-13-generic with default boot entries to have xen
hvm 4.3 with iommu enabled. Without additional parameters, the boot
process would hang (blank screen) where disks are normally mounted.
After reaching the blank screen, it would not respond to Ctrl+Alt+Del.
Hard reset was required. If I passed iommu=off or nomodeset as boot
parameters, it would boot with xen. Booting without xen also worked
normally.
linux-image-3.11.0-12-generic continues to work with xen and iommu
enabled without additional boot parameters. I have attached xen's
dmesg under linux-image-3.11.0-12-generic in case it is of interest.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-13-generic 3.11.0-13.20
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: austin 2698 F.... pulseaudio
Date: Mon Nov 18 15:29:42 2013
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=36ffd2a3-104d-45fa-bf13-964d55db955e
InstallationDate: Installed on 2013-01-22 (300 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
MachineType: Hewlett-Packard HP Compaq dc7900 Convertible Minitower
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: placeholder root=UUID=6ce9f617-e442-429c-91e8-75d1ea79ec98 ro
RelatedPackageVersions:
linux-restricted-modules-3.11.0-12-generic N/A
linux-backports-modules-3.11.0-12-generic N/A
linux-firmware 1.116
RfKill:
SourcePackage: linux
UpgradeStatus: Upgraded to saucy on 2013-10-18 (31 days ago)
dmi.bios.date: 03/05/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 786G1 v01.16
dmi.board.asset.tag: MXL9191J92
dmi.board.name: 3032h
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: MXL9191J92
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr786G1v01.16:bd03/05/2009:svnHewlett-Packard:pnHPCompaqdc7900ConvertibleMinitower:pvr:rvnHewlett-Packard:rn3032h:rvr:cvnHewlett-Packard:ct6:cvr:
dmi.product.name: HP Compaq dc7900 Convertible Minitower
dmi.sys.vendor: Hewlett-Packard
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References