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Message #74623
[Bug 1353913] Re: [Core i7 920 / Bloomfield] perf_event_intel: CPUID marked event: 'bus cycles' unavailable
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.16 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/v3.16-utopic/
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1353913
Title:
[Core i7 920 / Bloomfield] perf_event_intel: CPUID marked event: 'bus
cycles' unavailable
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
In the dmesg output for my Ubuntu 14.04 kernel I see these lines,
saying that bus cycles are unavailabe:
[ 0.198024] Performance Events: PEBS fmt1+, 16-deep LBR, Nehalem events, Intel PMU driver.
[ 0.198029] perf_event_intel: CPU erratum AAJ80 worked around
[ 0.198031] perf_event_intel: CPUID marked event: 'bus cycles' unavailable
[ 0.198033] ... version: 3
[ 0.198034] ... bit width: 48
[ 0.198035] ... generic registers: 4
[ 0.198036] ... value mask: 0000ffffffffffff
[ 0.198037] ... max period: 000000007fffffff
[ 0.198038] ... fixed-purpose events: 3
[ 0.198039] ... event mask: 000000070000000f
Any ideas how I can make them available?
Thanks
Michael
---
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: michael.heuberger 2085 F.... pulseaudio
/dev/snd/controlC2: michael.heuberger 2085 F.... pulseaudio
/dev/snd/controlC0: michael.heuberger 2085 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=4bbd9d93-8982-4c0a-a955-0554ee12e4f8
InstallationDate: Installed on 2014-05-01 (98 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: System manufacturer System Product Name
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=47ab151a-c47d-4eff-ab5b-7751fc32014d ro quiet
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
RelatedPackageVersions:
linux-restricted-modules-3.13.0-32-generic N/A
linux-backports-modules-3.13.0-32-generic N/A
linux-firmware 1.127.5
RfKill:
0: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
Tags: trusty
Uname: Linux 3.13.0-32-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin mail plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/10/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0701
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P6X58D-E
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0701:bd05/10/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP6X58D-E:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
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