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Date:      Thu, 26 Jun 2014 15:23:22 -0700
From:      Sean Bruno <sbruno@ignoranthack.me>
To:        Neel Natu <neelnatu@gmail.com>
Cc:        "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org>
Subject:   Re: jenkins bhyve vms crashing and burning after several days of use
Message-ID:  <1403821402.2417.12.camel@bruno>
In-Reply-To: <CAFgRE9GYHzenX7px6-Sp6BfeTVA0-jcwg=JgcGXKuBeFJXUoog@mail.gmail.com>
References:  <1403818926.2417.6.camel@bruno> <1403819194.2417.8.camel@bruno> <CAFgRE9GYHzenX7px6-Sp6BfeTVA0-jcwg=JgcGXKuBeFJXUoog@mail.gmail.com>

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On Thu, 2014-06-26 at 15:00 -0700, Neel Natu wrote:
> Hi Sean,
> 
> On Thu, Jun 26, 2014 at 2:46 PM, Sean Bruno <sbruno@ignoranthack.me> wrote:
> > On Thu, 2014-06-26 at 14:42 -0700, Sean Bruno wrote:
> >> so, we're seeing the bhyve vms running in the freebsd cluster for
> >> jenkins crashing and burning after a couple of days of use.
> >>
> >> vm exit[9]
> >> reason          VMX
> >> rip             0x0000000029286336
> >> inst_length     3
> >> status          0
> >> exit_reason     49
> >> qualification   0x0000000000000000
> >> inst_type       0
> >> inst_error      0
> >>
> >>
> >> It looks like we have an active core file on havoc.ysv if you have a
> >> moment to look at it:
> >>
> >> http://people.freebsd.org/~sbruno/bhyve.core
> >>
> >> FreeBSD havoc.ysv.freebsd.org 11.0-CURRENT FreeBSD 11.0-CURRENT #2
> >> r267362: Wed Jun 11 14:56:34 UTC 2014
> >> sbruno@havoc.freebsd.org:/usr/obj/usr/src/sys/HAVOC  amd64
> >>
> >
> > Also, from chaos.ysv
> >
> > http://people.freebsd.org/~sbruno/bhyve.core.chaos
> >
> > FreeBSD chaos.ysv.freebsd.org 11.0-CURRENT FreeBSD 11.0-CURRENT #1
> > r267362: Wed Jun 11 15:50:24 UTC 2014
> > sbruno@chaos.ysv.freebsd.org:/usr/obj/usr/src/sys/CHAOS  amd64
> >
> 
> Can you tell us the processor and memory configuration on havoc and chaos?
> 
> Also, could you execute the following commands on havoc:
> 
> # bhyvectl --vm=vmname --cpu=9 --get-vmcs-guest-physical-address
> -- this will output the offending guest physical address that
> triggered the EPT misconfiguration
> 
> # bhyvectl --vm=vmname --get-gpa-pmap=<gpa_from_above>
> -- this will output the page table entries in the EPT that map to the
> offending GPA
> 
> Hopefully that provides us with something to work with.
> 
> best
> Neel
> 
> >

chaos:
CPU: Intel(R) Xeon(R) CPU E5-2660 0 @ 2.20GHz (2200.05-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x206d6  Family=0x6  Model=0x2d  Stepping=6
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=0x1fbee3ff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,DCA,SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX>
  AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM>
  AMD Features2=0x1<LAHF>
  TSC: P-state invariant, performance statistics
avail memory = 66298322944 (63227 MB)

havoc:
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
CPU: Intel(R) Xeon(R) CPU           E5620  @ 2.40GHz (2400.14-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>
  TSC: P-state invariant, performance statistics
avail memory = 16571621376 (15803 MB)


There appear to be three vms running on havoc:
root@havoc.ysv:/home/sbruno # bhyvectl --vm=vm1 --cpu=9
--get-vmcs-guest-physical-address 
gpa[9]		0x0000000000000000
root@havoc.ysv:/home/sbruno # bhyvectl --vm=vm2 --cpu=9
--get-vmcs-guest-physical-address
gpa[9]		0x0000000000000000
root@havoc.ysv:/home/sbruno # bhyvectl --vm=vm3 --cpu=9
--get-vmcs-guest-physical-address
gpa[9]		0x0000000000000000

root@havoc.ysv:/home/sbruno # bhyvectl --vm=vm1 --cpu=9
--get-gpa-pmap=0x0000000000000000
gpa 0: 0x300002c936e007 0x300002c9353007 0x300002c9352007 0

root@havoc.ysv:/home/sbruno # bhyvectl --vm=vm2 --cpu=9
--get-gpa-pmap=0x0000000000000000
gpa 0: 0x30000286cb0007 0x300003ad105007 0x3000019b1fd007 0

root@havoc.ysv:/home/sbruno # bhyvectl --vm=vm3 --cpu=9
--get-gpa-pmap=0x0000000000000000
gpa 0: 0x300002c9348007 0x300002c9339007 0


But there's no information available on chaos at the moment as there are
no active vms running.

sean




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