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Date: Sat, 31 Mar 2018 18:24:43 +0000
From: Chris <syseng@gfsys.co.uk>
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To: "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net>, 
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Subject: Re: [Bug 224003] xen kernel panics
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On 03/31/18 18:11, Chris wrote:
> On 03/30/18 18:05, Rodney W. Grimes wrote:
>
>> I can affirm that a E56xx cpu should be very capable of supporting Xen.
>> CPU: Intel(R) Xeon(R) CPU X5675 @ 3.07GHz (3059.07-MHz K8-class CPU)
>> Origin="GenuineIntel" Id=0x206c2 Family=0x6 Model=0x2c Stepping=2
>> 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=0x29ee3ff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,DCA,SSE4.1,SSE4.2,POPCNT,AESNI>
>>
>> AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM>
>> AMD Features2=0x1<LAHF>
>> VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID
>> TSC: P-state invariant, performance statistics
>>

Looks like this might be the problem:-

> (XEN) [VT-D]Disabling IOMMU due to Intel 5500/5520/X58 Chipset errata
> #47, #53

Been in a rush today, but should have looked at that a bit more closely
before posting, as istr, saw that  mentioned as a bug eleswhere back
from 2015 or so....

Regards,

Chris