Re: r365488 page faults on AMD Ryzen 9 3950X

I am also having this problem. Have you resolved it? Mine is a Ryzen 5 2400G

On 9/12/20 5:22 AM, Rainer Hurling wrote:
> Since r365488 (and above until recent) my box breaks with the following
> error when starting:
> 
> Fatal trap 12: page fault while in kernel mode
> cpuid = 31; apic id = 1f
> fault virtual address   = 0x0
> fault code              = supervisor read data, page not present
> instruction pointer     = 0x20:0xffffffff808f452b
> stack pointer           = 0x28:0xffffffff81711800
> frame pointer           = 0x28:0xffffffff81711800
> code segment            = base 0x0, limit 0xfffff, type 0x1b
>                          = DPL 0, pres 1, long 1, def32 0, gran 1
> processor eflags        = interrupt enabled, resume, IOPL = 0
> current process         = 0 (swapper)
> trap number             = 12
> panic: page fault
> cpuid = 31
> time = 1
> 
> 
> 
> Some infos about the system, the page fault occurs:
> 
> CPU: AMD Ryzen 9 3950X 16-Core Processor             (3493.50-MHz
> K8-class CPU)
>    Origin="AuthenticAMD"  Id=0x870f10  Family=0x17  Model=0x71  Stepping=0
> Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
> Features2=0x7ed8320b<SSE3,PCLMULQDQ,MON,SSSE3,FMA,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND>
>    AMD Features=0x2e500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM>
>    AMD
> Features2=0x75c237ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OSVW,IBS,SKINIT,WDT,TCE,Topology,PCXC,PNXC,DBE,PL2I,MWAITX,ADMSKX>
>    Structured Extended
> Features=0x219c91a9<FSGSBASE,BMI1,AVX2,SMEP,BMI2,PQM,PQE,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA>
>    Structured Extended Features2=0x400004<UMIP,RDPID>
>    XSAVE Features=0xf<XSAVEOPT,XSAVEC,XINUSE,XSAVES>
>    AMD Extended Feature Extensions ID
> EBX=0x108b657<CLZERO,IRPerf,XSaveErPtr,RDPRU,WBNOINVD,IBPB,STIBP,SSBD>
>    SVM: (disabled in BIOS) NP,NRIP,VClean,AFlush,DAssist,NAsids=32768
>    TSC: P-state invariant, performance statistics
> real memory  = 68717379584 (65534 MB)
> avail memory = 66756149248 (63663 MB)
> Event timer "LAPIC" quality 600
> 
> 
> #cat /etc/sysctl.conf
> security.bsd.map_at_zero=1
> kern.module_path=/boot/kernel;/boot/modules;/usr/local/modules
> kern.evdev.rcpt_mask=6
> kern.maxfiles=49312
> kern.ipc.shm_allow_removed=1
> kern.ipc.maxsockbuf=16777216
> vfs.usermount=1
> net.inet.tcp.rfc1323=1
> net.inet.tcp.sack.enable=1
> net.inet.tcp.sendbuf_auto=1
> net.inet.tcp.recvbuf_auto=1
> net.inet.tcp.sendbuf_max=16777216
> net.inet.tcp.recvbuf_max=16777216
> net.inet6.ip6.use_tempaddr=1
> net.inet6.ip6.prefer_tempaddr=1
> net.local.stream.recvspace=65536
> net.local.stream.sendspace=65536
> 
> 
> Please let me know, if I should provide more info or test something.
> Thanks in advance,
> Rainer
> _______________________________________________
> freebsd-current_at_freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org"
>