[Bug 1592369] Re: On function native_apic_mem_write issue.

The task "linux (Ubuntu)" has expired because it has had no new comments or updates for more than three years. If this issue is still present in an Ubuntu LTS kernel still under active support, please reopen the bug and provide updated details. If this issue was reported against an Ubuntu kernel no longer under active support but the issue still exists in a currently supported Ubuntu kernel, please open a new bug against that kernel version and provide the updated details, with a reference link to the original bug. This action was performed by an automated process maintained by the Ubuntu Kernel Team. ** Tags added: kernel-autoclosed kernel-autoclosed-expired ** Changed in: linux (Ubuntu) Status: Confirmed => Expired -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/1592369 Title: On function native_apic_mem_write issue. Status in linux package in Ubuntu: Expired Bug description: Execute xchg %ax,%ax after finishing the running funtion. Here is content of perf report: native_apic_mem_write /proc/kcore │ ▒ │ ▒ │ ▒ │ Disassembly of section load0: ▒ │ ▒ │ ffffffff8105a2a0 <load0>: ▒ │ push %rbp ▒ │ mov %edi,%edi ▒ │ mov %rsp,%rbp ◆ │ mov %esi,-0xa07000(%rdi) ▒ 100,00 │ pop %rbp ▒ │ ← retq ▒ │ xchg %ax,%ax ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-24-generic 4.4.0-24.43 ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10 Uname: Linux 4.4.0-24-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: asu 3226 F.... pulseaudio CurrentDesktop: MATE Date: Tue Jun 14 14:16:23 2016 InstallationDate: Installed on 2016-04-29 (45 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-4.4.0-24-generic root=/dev/mapper/192--168--0--108--vg-root ro RelatedPackageVersions: linux-restricted-modules-4.4.0-24-generic N/A linux-backports-modules-4.4.0-24-generic N/A linux-firmware 1.157 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1592369/+subscriptions