Public bug reported:
I have recorded system activity with
sudo perf record -a --call-graph=dwarf -e sched:sched_process_exec
-e cycles -o perf.steam-validating.data
but when I try to load it with
sudo perf report --hierarchy -i perf.steam-validating.data
I get error message
unwind: target platform=x86 is not supported
even though I have both 32-bit and 64-bit unwind support installed as
far as I know:
$ aptitude search "~i libunwind"
i A android-libunwind - libunwind for Android
i A libunwind-dev - library to determine the call-chain
of a program
i libunwind-dev:i386 - library to determine the call-chain
of a program
i A libunwind8 - library to determine the call-chain
of a program
i A libunwind8:i386 - library to determine the call-chain
of a program
$ uname -a
Linux desktop 6.8.0-49-lowlatency #49.1~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Sun
Nov 10 10:51:35 UTC x86_64 x86_64 x86_64 GNU/Linux
The `perf report` should support both 32-bit and 64-bit binaries.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-tools-common 5.15.0-126.136
ProcVersionSignature: Ubuntu 6.8.0-49.49.1~22.04.1-lowlatency 6.8.12
Uname: Linux 6.8.0-49-lowlatency x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82.6
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: XFCE
Date: Wed Dec 11 20:18:55 2024
EcryptfsInUse: Yes
InstallationDate: Installed on 2019-01-05 (2167 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
MachineType: Micro-Star International Co., Ltd. MS-7E06
PackageArchitecture: all
ProcFB: 0 nvidia-drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-49-lowlatency
root=UUID=dbd2442e-cbca-4518-8487-bd50d0fcd094 ro quiet swapaccount=1 delayacct
msr.allow_writes=on modprobe.blacklist=nouveau nouveau.modeset=0
nvidia-drm.modeset=1 nvidia-drm.fbdev=1
nvidia.NVreg_PreserveVideoMemoryAllocations=1
RelatedPackageVersions:
linux-restricted-modules-6.8.0-49-lowlatency N/A
linux-backports-modules-6.8.0-49-lowlatency N/A
linux-firmware 20220329.git681281e4-0ubuntu3.36
SourcePackage: linux
UpgradeStatus: Upgraded to jammy on 2023-08-11 (488 days ago)
dmi.bios.date: 08/15/2024
dmi.bios.release: 5.27
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: 1.D1
dmi.board.asset.tag: Default string
dmi.board.name: PRO Z790-P WIFI DDR4 (MS-7E06)
dmi.board.vendor: Micro-Star International Co., Ltd.
dmi.board.version: 1.0
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Micro-Star International Co., Ltd.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvr1.D1:bd08/15/2024:br5.27:svnMicro-StarInternationalCo.,Ltd.:pnMS-7E06:pvr1.0:rvnMicro-StarInternationalCo.,Ltd.:rnPROZ790-PWIFIDDR4(MS-7E06):rvr1.0:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr1.0:skuDefaultstring:
dmi.product.family: Default string
dmi.product.name: MS-7E06
dmi.product.sku: Default string
dmi.product.version: 1.0
dmi.sys.vendor: Micro-Star International Co., Ltd.
modified.conffile..etc.init.d.apport: [modified]
mtime.conffile..etc.init.d.apport: 2022-05-19T12:50:20.029158
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy
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https://bugs.launchpad.net/bugs/2091577
Title:
perf report doesn't support 32-bit unwind
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