Public bug reported:
Below is result of perf report:
..........................
│ movslq 0x980(%rax),%rdx
▒
│ mov 0xb8(%rcx),%rax
▒
│ mov (%rax,%rdx,8),%r12
▒
25,00 │ test %r12,%r12
▒
│ ↓ je bc
▒
│ nop
▒
│ 3c: mov (%rdi),%rax
▒
│ mov 0xd0(%rcx),%rdx
▒
│ mov 0xc8(%rcx),%rcx
▒
│ add %rax,%rdx
▒
│ mov %rdx,%rsi
▒
│ imul %rcx,%rax
▒
25,00 │ sub 0x98(%rdi),%rsi
▒
│ ↓ je 65
▒
│ cqto
▒
│ idiv %rsi
▒
25,00 │ 65: cmp $0x1,%rax
▒
│ mov $0x2,%ebx
▒
│ mov 0x38(%r12),%edx
▒
│ cmova %rax,%rbx
◆
│ mov 0x150(%r12),%r13
▒
25,00 │ cmp %rcx,%rbx
▒
│ cmova %rcx,%rbx
▒
│ test %edx,%edx
▒
│ ↓ je d8
..............................
On alls cases will test with firefox and plugin-container from adobe.
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 3279 F.... pulseaudio
CurrentDesktop: XFCE
Date: Wed Jul 6 11:02:18 2016
InstallationDate: Installed on 2016-04-29 (67 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: New
** Tags: amd64 apport-bug xenial
** Patch added: "Tested on linux-4.6.2"
https://bugs.launchpad.net/bugs/1599407/+attachment/4696244/+files/add_supp_for_NULL_update_cfs_shares.patch
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https://bugs.launchpad.net/bugs/1599407
Title:
On update_cfs_shares function issue.
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