Date: Fri, 30 Jul 2021 13:08:51 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 233764] [amdtemp] does not know correct offset for AMD Family 15h (A8-7600, FX-8300, etc) Tctl Message-ID: <bug-233764-227-UxGEaMIwib@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-233764-227@https.bugs.freebsd.org/bugzilla/> References: <bug-233764-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D233764 Vincent Bentley <vince@vincentbentley.co.uk> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |vince@vincentbentley.co.uk --- Comment #25 from Vincent Bentley <vince@vincentbentley.co.uk> --- I think this issue affects more AMD CPUs. I repurposed an old PC today that= was running Linux with lm-sensors reporting 45 DegC cpu temp at idle yesterday. After installing FreeBSD 12.2, amdtemp is reporting -0.0C . It is summer and the ambient room temperature at the moment is uncomfortable 27 DegC. The CPU is Family 0x10, a 2.6Ghz Athlon II quad core. I read through other bug reports and concluded that temperature measurement= on AMD is proprietary requiring the knowledge of too many undocumented feature= s. I am not expecting a fix, I will just assume that cpu temps are intel only on FreeBSD. I don't have time to see how lm-sensors does it, so in case anyone is interested in my system info, here it is. Base Board Information Manufacturer: Gigabyte Technology Co., Ltd. Product Name: GA-MA785GMT-UD2H https://www.gigabyte.com/Motherboard/GA-MA785GMT-UD2H-rev-10#ov Without opening it up, I am not sure what revision the board is. So assuming 1.0 No core unlock feature on this board! # sysctl -a | grep temperature dev.cpu.3.temperature: -0.0C dev.cpu.2.temperature: -0.0C dev.cpu.1.temperature: -0.0C dev.cpu.0.temperature: -0.0C # sysctl -a | grep amdtemp dev.amdtemp.0.core0.sensor0: -0.0C dev.amdtemp.0.sensor_offset: 0 dev.amdtemp.0.%parent: hostb4 dev.amdtemp.0.%pnpinfo:=20 dev.amdtemp.0.%location:=20 dev.amdtemp.0.%driver: amdtemp dev.amdtemp.0.%desc: AMD CPU On-Die Thermal Sensors dev.amdtemp.%parent:=20 # devinfo -v |grep hostb4 hostb4 pnpinfo vendor=3D0x1022 device=3D0x1203 subvendor=3D0x0000 subdevice=3D0x0000 class=3D0x060000 at slot=3D24 function=3D3 dbsf=3Dpci0:0= :24:3 # pciconf -l | grep 0x1203 hostb4@pci0:0:24:3: class=3D0x060000 card=3D0x00000000 chip=3D0x1203102= 2 rev=3D0x00 hdr=3D0x00 # pciconf -r pci0:0:24:3 0xa4 000c1880 # pciconf -r pci0:0:24:3 0xfc 00100f52=20 # pciconf -r pci0:0:24:3 0x64 34280005=20 >From dmesg... FreeBSD 12.2-RELEASE-p7 GENERIC amd64 FreeBSD clang version 10.0.1 (git@github.com:llvm/llvm-project.git llvmorg-10.0.1-0-gef32c611aa2) VT(vga): resolution 640x480 CPU: AMD Athlon(tm) II X4 620 Processor (2611.85-MHz K8-class CPU) Origin=3D"AuthenticAMD" Id=3D0x100f52 Family=3D0x10 Model=3D0x5 Stepp= ing=3D2 =20 Features=3D0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,= MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT> Features2=3D0x802009<SSE3,MON,CX16,POPCNT> AMD Features=3D0xee500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM,3DNow!+,3DNow= !> AMD Features2=3D0x37ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OSVW,IBS= ,SKINIT,WDT> SVM: NP,NRIP,NAsids=3D64 TSC: P-state invariant real memory =3D 8589934592 (8192 MB) avail memory =3D 7737597952 (7379 MB) Event timer "LAPIC" quality 100 ACPI APIC Table: <GBT GBTUACPI> FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs FreeBSD/SMP: 1 package(s) x 4 core(s) --=20 You are receiving this mail because: You are the assignee for the bug.=
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