Re: UFS problem?

On Wed, 26 Mar 2025 10:56:05 +0100
Mats Mellstrand <mats@exmandato.se> wrote:

> Hi
> 
> Hardware:
> 
> CPU: Intel(R) N100 (806.40-MHz K8-class CPU)
>   Origin="GenuineIntel"  Id=0xb06e0  Family=0x6  Model=0xbe
> Stepping=0
> Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
> Features2=0x7ffafbbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,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=0x121<LAHF,ABM,Prefetch> Structured Extended
> Features=0x239ca7eb<FSGSBASE,TSCADJ,BMI1,AVX2,FDPEXC,SMEP,BMI2,ERMS,INVPCID,NFPUSG,PQE,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,PROCTRACE,SHA>
> Structured Extended
> Features2=0x98c007bc<UMIP,PKU,OSPKE,WAITPKG,GFNI,VAES,VPCLMULQDQ,RDPID,MOVDIRI,MOVDIR64B>
> Structured Extended
> Features3=0xfc184410<FSRM,MD_CLEAR,IBT,IBPB,STIBP,L1DFL,ARCH_CAP,CORE_CAP,SSBD>
> XSAVE Features=0xf<XSAVEOPT,XSAVEC,XINUSE,XSAVES>
> IA32_ARCH_CAPS=0x180fd6b<RDCL_NO,IBRS_ALL,SKIP_L1DFL_VME,MDS_NO,TAA_NO>
> VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID,VID,PostIntr TSC: P-state
> invariant, performance statistics real memory  = 8589934592 (8192 MB)
> avail memory = 7981867008 (7612 MB) ….
> 
> As harddisk I use a NVME probed as:
> nvme0: Allocated 127MB host memory buffer
> 
> When trying to install packages I receive:
> 
> Mar 26 09:42:03 xxx kernel: UFS /dev/nda0p2 (/) cg 75: bad magic
> number 0x0 should be 0x90255 Mar 26 09:42:03 xxx kernel: /: bad dir
> ino 6169868 at offset 0: mangled entry Mar 26 09:44:18 xxx kernel: /:
> bad dir ino 6089939 at offset 0: mangled entry
> 

Hi,

this issue is already known. You hit a CPU bug. It is discussed in
thread titled 'UFS bad inode, mangled entry on Alder Lake-N(100)' on
freebsd-current mailing list, starting at January 27th, 2025.

Basically, there are two sollutions - add a line

vm.pmap.pcid_enabled=0

to /boot/loader.conf file and reboot. Alternatively, you can install
sysutils/cpu-microcode port and do CPU microcode update.

Regards,
Milan