Public bug reported:
Bellow is result of perf report:
..............................
│ cmp %rax,%r15
▒
│ ↓ je 398
▒
│ lea -0xd8(%rax),%rbx
▒
│ mov %r14,0x8(%rsp)
▒
│ movabs $0xafb504000afb5041,%r8
▒
│ mov %r15,%r14
▒
│ 71: nop
▒
│ mov 0x124(%rbx),%r11d
▒
26,56 │ test %r11d,%r11d
▒
│ ↓ jne 426
▒
│ 86: mov 0xc8(%rbx),%rax
▒
17,97 │ mov 0x910(%rax),%rax
▒
1,56 │ sub 0x118(%rbx),%rax
▒
│ 9b: mov 0xa0(%rbx),%rdx
▒
12,50 │ xor %r15d,%r15d
▒
│ test %rdx,%rdx
▒
│ ↓ je ea
▒
│ xor %ecx,%ecx
▒
│ mov %rcx,%rdx
▒
│ xchg %rdx,0xa0(%rbx)
▒
│ sub %rdx,0x78(%rbx)
▒
│ mov %rcx,%rsi
▒
│ mov $0x1,%r15d
▒
│ cmpq $0x0,0x78(%rbx)
.................................
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-28-generic 4.4.0-28.47
ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13
Uname: Linux 4.4.0-28-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: asu 2987 F.... pulseaudio
CurrentDesktop: MATE
Date: Sun Jul 3 07:49:32 2016
InstallationDate: Installed on 2016-04-29 (64 days ago)
InstallationMedia: Ubuntu-Studio 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
IwConfig:
lo no wireless extensions.
enp1s0 no wireless extensions.
MachineType: Olidata S.p.A. ALABAMA
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-28-generic
root=/dev/mapper/192--168--0--108--vg-root ro
RelatedPackageVersions:
linux-restricted-modules-4.4.0-28-generic N/A
linux-backports-modules-4.4.0-28-generic N/A
linux-firmware 1.157.1
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/08/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: S0101
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: To be filled by O.E.M.
dmi.board.vendor: To be filled by O.E.M.
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrS0101:bd07/08/2008:svnOlidataS.p.A.:pnALABAMA:pvrToBeFilledByO.E.M.:rvnTobefilledbyO.E.M.:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: ALABAMA
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: Olidata S.p.A.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1598529
Title:
On update_blocked_averages function issue
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