On __calc_delta function issue.
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Triaged
|
Medium
|
Unassigned |
Bug Description
Bellow is result of perf report:
.......
│ cmp %rax,%r8 ▒
│ ↓ ja a9 ▒
│ test %r8,%r8 ▒
│ ↓ je b7 ▒
│ mov $0xffffffff,%eax ▒
│ xor %edx,%edx ▒
│ div %r8 ▒
100,00 │ mov %eax,0x8(%rcx) ▒
│7c:┌─→mov %rsi,%rdx ▒
│ │ mov $0x20,%ecx ▒
│ │ shr $0x20,%rdx ▒
│ │ test %rdx,%rdx ▒
│ │↑ je 25 ▒
│8d:│ mov $0x20,%ecx ▒
│92:│ shr %rsi ▒
│ │ sub $0x1,%ecx ▒
│ │ mov %rsi,%rdx ▒
│ │ shr $0x20,%rdx
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-
ProcVersionSign
Uname: Linux 4.4.0-28-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CurrentDesktop: MATE
Date: Tue Jul 5 18:00:13 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=
RelatedPackageV
linux-
linux-
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.
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.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: ALABAMA
dmi.product.
dmi.sys.vendor: Olidata S.p.A.
tags: | added: patch |
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