Date: Sat, 18 May 2019 16:52:14 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 237968] 12-STABLE: MDS software mitigation locks up on Haswell Message-ID: <bug-237968-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237968 Bug ID: 237968 Summary: 12-STABLE: MDS software mitigation locks up on Haswell Product: Base System Version: 12.0-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: naddy@FreeBSD.org FreeBSD 12.0-STABLE r347955 GENERIC amd64 hw.mds_disable=3 (Automatic VERW or Software selection) in /boot/loader.conf Enabling Microarchitectural Data Sampling mitigation on a Haswell Xeon without MD_CLEAR microcode causes the kernel to hang on boot after the ioapic0 line. CPU: Intel(R) Xeon(R) CPU E3-1225 v3 @ 3.20GHz (3192.67-MHz K8-class CPU) Origin="GenuineIntel" Id=0x306c3 Family=0x6 Model=0x3c Stepping=3 Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=0x7ffafbff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND> AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD Features2=0x21<LAHF,ABM> Structured Extended Features=0x27ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,NFPUSG> Structured Extended Features3=0x9c000000<IBPB,STIBP,L1DFL,SSBD> XSAVE Features=0x1<XSAVEOPT> VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID TSC: P-state invariant, performance statistics -- You are receiving this mail because: You are the assignee for the bug.help
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