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* Problems with pci/vga passthrough
@ 2017-01-18  1:37 Diederik de Haas
  2017-01-18 16:20 ` Is: EPT violations. Was:Re: " Konrad Rzeszutek Wilk
  0 siblings, 1 reply; 13+ messages in thread
From: Diederik de Haas @ 2017-01-18  1:37 UTC (permalink / raw)
  To: xen-devel


[-- Attachment #1.1.1: Type: text/plain, Size: 4694 bytes --]

Hi!

I reported/discussed this earlier on IRC, but was asked to report it here too.

The goal I tried to accomplish was getting vga passthrough working to get 
hardware acceleration and OpenGL 2+ working for a vm containing 
KDE Plasma 5 (Debian Stretch). 
The graphics card I tried it with was an (old) NVidia GeForce 6200 TurboCache 
and even though I already had a suspicion that it would be challenging, 
which was confirmed on IRC, I wanted to try/figure out what I should be doing 
as I'm (very) new to Xen. 

But as soon as I enabled 'gfx_passthru = 1` and `pci = [ '02:00.0' ]`, the 
`xl create <vm-config>` process kept crashing and the only way I was able to 
stop it was by doing `kill <xl-create-process>` and the <xl-create-process> was 
"/usr/lib/xen-4.8/bin/xl create -c /etc/xen/tradestation.home.cknow.org.cfg" 
(attached as tradestation.xen.cfg)

Here's some console output illustrating the crashing:
root@cknowsvr01:/home/diederik# xl create -c /etc/xen/tradestation.home.cknow.org.cfg 
Parsing config from /etc/xen/tradestation.home.cknow.org.cfg
libxl: notice: libxl_numa.c:518:libxl__get_numa_candidate: NUMA placement failed, performance might be affected
libxl: error: libxl_qmp.c:287:qmp_handle_error_response: received an error message from QMP server: Could not set password
root@cknowsvr01:/home/diederik# xl list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0 112773    32     r-----      80.0
tradestation.home.cknow.org                  5 16383     1     --psc-       0.0
root@cknowsvr01:/home/diederik# xl list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0 112773    32     r-----      86.2
tradestation.home.cknow.org                  6 16383     1     ---sc-       0.0
root@cknowsvr01:/home/diederik# xl list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0 112773    32     r-----      86.3
tradestation.home.cknow.org                  6 16383     1     ---sc-       0.0
root@cknowsvr01:/home/diederik# xl list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0 112773    32     r-----      90.4
root@cknowsvr01:/home/diederik# xl list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0 112773    32     r-----      92.8
tradestation.home.cknow.org                  7 16383     1     ---sc-       0.0
root@cknowsvr01:/home/diederik# xl list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0 112773    32     r-----     132.1
tradestation.home.cknow.org                 13 16383     1     ---sc-       0.0

Trying with `xl destroy <id>` didn't help, `xl pause <id>` paused the 
crashing, but as soon as I tried to activate it again, the crash-loop 
continued and as said before `kill <xl-create-process>` was the only way out.

I've also attached the output of `xl info` and `xl dmesg` as that may 
provide some info as well. 
In the `xl dmesg` you'll notice various crashes as well and that is very likely 
due to hardware-wise failing of the vga card which disappeared when I took 
the vga card out of the system.

Furthermore, I have also attached a description of the process I tried to get 
it working when trying to use `xl pci-assignable-add` which resulted in a 
complete system hang. In retrospect it may have been caused by hardware 
failure, but still, getting a complete system hang when executing a `xl` 
command isn't nice. 
But as I said, I'm a n00b wrt Xen, so I figured I better provide too much 
info then too little.

No matter the hardware failure, I see the continuous loop of the  failed vm 
creation attempt as a real problem as I could only stop that by using 
`kill <pid>` and that was before the hardware (really) died.

As it looks like the hardware failure of the vga card even prevented booting 
of the whole system at some point, I have removed it and have no plans to 
put it back in, even for testing purposes. 
But otherwise I'll try to answer any questions to the best of my abilities.
I have ordered an XFX Radeon RX 460 - 4GB GDDR5 (passively cooled) and 
when that arrives I can try to see whether I can reproduce it with that too, 
but it may take a couple of days and it is a completely different card.

Lastly, I subscribed to this list but due to the huge volume, I unsubscribed 
again, so a CC of any response would be preferable.

Cheers,
  Diederik

[-- Attachment #1.1.2: tradestation.xen.cfg --]
[-- Type: text/plain, Size: 1118 bytes --]

root@cknowsvr01:/home/diederik# cat /etc/xen/tradestation.home.cknow.org.cfg 
#
# Configuration file for the Xen instance tradestation.home.cknow.org, created
# by xen-tools 4.6.2 on Sun Jan  8 12:58:13 2017.
#

#
#  Kernel + memory size
#
kernel      = '/boot/vmlinuz-4.8.0-2-amd64'
extra       = 'elevator=noop xen-fbfront.video=32,1920,1080'
ramdisk     = '/boot/initrd.img-4.8.0-2-amd64'

vcpus       = '8'
memory      = '16384'

# Use PVH mode
pvh         = 1


#
#  Disk device(s).
#
root        = '/dev/xvda2 ro'
disk        = [
                  'phy:/dev/vgXen/tradestation.home.cknow.org-disk,xvda2,w',
                  'phy:/dev/vgXen/tradestation.home.cknow.org-swap,xvda1,w',
              ]


#
#  Physical volumes
#


#
#  Hostname
#
name        = 'tradestation.home.cknow.org'

#
#  Networking
#
dhcp        = 'dhcp'
vif         = [ 'mac=00:16:3E:C3:B3:E8' ]

#
#  Behaviour
#
on_poweroff = 'destroy'
on_reboot   = 'restart'
on_crash    = 'restart'


# PCI devices
# pvh = 1 is likely needed for this
gfx_passthru = 1
pci = [ '02:00.0' ]

# VNC
vnc=1
vnclisten=""
vncpasswd=""
vga="stdvga"
videoram=64

[-- Attachment #1.1.3: xl_info+xl_dmesg-with-nvidia-card.txt --]
[-- Type: text/plain, Size: 32482 bytes --]

root@cknowsvr01:/home/diederik# xl info
host                   : cknowsvr01
release                : 4.8.0-2-amd64
version                : #1 SMP Debian 4.8.15-2 (2017-01-04)
machine                : x86_64
nr_cpus                : 32
max_cpu_id             : 31
nr_nodes               : 2
cores_per_socket       : 8
threads_per_core       : 2
cpu_mhz                : 2095
hw_caps                : b7ebfbff:77fef3ff:2c100800:00000121:00000001:001cbfbb:00000000:00000100
virt_caps              : hvm hvm_directio
total_memory           : 130972
free_memory            : 65
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 8
xen_extra              : .0
xen_version            : 4.8.0
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : 
xen_commandline        : placeholder
cc_compiler            : gcc (Debian 6.2.1-7) 6.2.1 20161215
cc_compile_by          : ian.jackson
cc_compile_domain      : eu.citrix.com
cc_compile_date        : Thu Dec 22 18:03:41 UTC 2016
build_id               : c8b753ce66a22831cdf39f5624a3365352d37a44
xend_config_format     : 4
root@cknowsvr01:/home/diederik# xl dmesg
(XEN) Xen version 4.8.0 (Debian 4.8.0-1) (ian.jackson@eu.citrix.com) (gcc (Debian 6.2.1-7) 6.2.1 20161215) debug=n  Thu Dec 22 18:03:41 UTC 2016
(XEN) Bootloader: GRUB 2.02~beta3-3
(XEN) Command line: placeholder
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: none; EDID transfer time: 0 seconds
(XEN)  EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information:
(XEN)  Found 5 MBR signatures
(XEN)  Found 5 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009e800 (usable)
(XEN)  000000000009e800 - 00000000000a0000 (reserved)
(XEN)  00000000000e0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 0000000079d24000 (usable)
(XEN)  0000000079d24000 - 000000007b8ea000 (reserved)
(XEN)  000000007b8ea000 - 000000007b95d000 (ACPI data)
(XEN)  000000007b95d000 - 000000007bee0000 (ACPI NVS)
(XEN)  000000007bee0000 - 0000000090000000 (reserved)
(XEN)  00000000fed1c000 - 00000000fed45000 (reserved)
(XEN)  00000000ff000000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 0000002080000000 (usable)
(XEN) ACPI: RSDP 000F0580, 0024 (r2 ALASKA)
(XEN) ACPI: XSDT 7B9120B0, 00D4 (r1 ALASKA   A M I   1072009 AMI     10013)
(XEN) ACPI: FACP 7B941410, 010C (r5 ALASKA   A M I   1072009 AMI     10013)
(XEN) ACPI: DSDT 7B912218, 2F1F7 (r2 ALASKA   A M I   1072009 INTL 20091013)
(XEN) ACPI: FACS 7BEDEF80, 0040
(XEN) ACPI: APIC 7B941520, 0224 (r3 ALASKA   A M I   1072009 AMI     10013)
(XEN) ACPI: FPDT 7B941748, 0044 (r1 ALASKA   A M I   1072009 AMI     10013)
(XEN) ACPI: FIDT 7B941790, 009C (r1 ALASKA   A M I   1072009 AMI     10013)
(XEN) ACPI: MCFG 7B941830, 003C (r1 ALASKA    A M I  1072009 MSFT       97)
(XEN) ACPI: EINJ 7B95C7D0, 0130 (r1 ALASKA   A M I         1 INTL        1)
(XEN) ACPI: UEFI 7B9418C8, 0042 (r1 ALASKA   A M I   1072009             0)
(XEN) ACPI: HPET 7B941910, 0038 (r1 ALASKA   A M I         1 INTL 20091013)
(XEN) ACPI: MSCT 7B941948, 0090 (r1 ALASKA   A M I         1 INTL 20091013)
(XEN) ACPI: SLIT 7B9419D8, 0030 (r1 ALASKA   A M I         1 INTL 20091013)
(XEN) ACPI: SRAT 7B941A08, 1158 (r3 ALASKA   A M I         1 INTL 20091013)
(XEN) ACPI: WDDT 7B942B60, 0040 (r1 ALASKA   A M I         0 INTL 20091013)
(XEN) ACPI: SSDT 7B942BA0, 16FB3 (r2 ALASKA    PmMgt        1 INTL 20120913)
(XEN) ACPI: NITR 7B959B58, 0071 (r2 ALASKA   A M I         1 INTL 20091013)
(XEN) ACPI: SPMI 7B959BD0, 0041 (r5 ALASKA   A M I         0 AMI.        0)
(XEN) ACPI: SSDT 7B959C18, 2652 (r2 ALASKA SpsNm           2 INTL 20120913)
(XEN) ACPI: SSDT 7B95C270, 0064 (r2 ALASKA SpsNvs          2 INTL 20120913)
(XEN) ACPI: PRAD 7B95C2D8, 0102 (r2 ALASKA   A M I         2 INTL 20120913)
(XEN) ACPI: DMAR 7B95C3E0, 00E8 (r1 ALASKA   A M I         1 INTL 20091013)
(XEN) ACPI: HEST 7B95C4C8, 00A8 (r1 ALASKA   A M I         1 INTL        1)
(XEN) ACPI: BERT 7B95C570, 0030 (r1 ALASKA   A M I         1 INTL        1)
(XEN) ACPI: ERST 7B95C5A0, 0230 (r1 ALASKA   A M I         1 INTL        1)
(XEN) System RAM: 130972MB (134116104kB)
(XEN) Domain heap initialised DMA width 32 bits
(XEN) ACPI: 32/64X FACS address mismatch in FADT - 7bedef80/0000000000000000, using 32
(XEN) IOAPIC[0]: apic_id 1, version 32, address 0xfec00000, GSI 0-23
(XEN) IOAPIC[1]: apic_id 2, version 32, address 0xfec01000, GSI 24-47
(XEN) IOAPIC[2]: apic_id 3, version 32, address 0xfec40000, GSI 48-71
(XEN) Enabling APIC mode:  Phys.  Using 3 I/O APICs
(XEN) Not enabling x2APIC (upon firmware request)
(XEN) xstate: size: 0x340 and states: 0x7
(XEN) CMCI: threshold 0x2 too large for CPU0 bank 17, using 0x1
(XEN) CMCI: threshold 0x2 too large for CPU0 bank 18, using 0x1
(XEN) CMCI: threshold 0x2 too large for CPU0 bank 19, using 0x1
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Platform timer is 14.318MHz HPET
(XEN) Detected 2095.152 MHz processor.
(XEN) Initing memory sharing.
(XEN) Intel VT-d iommu 0 supported page sizes: 4kB, 2MB, 1GB.
(XEN) Intel VT-d iommu 1 supported page sizes: 4kB, 2MB, 1GB.
(XEN) Intel VT-d Snoop Control enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping enabled.
(XEN) Intel VT-d Posted Interrupt not enabled.
(XEN) Intel VT-d Shared EPT tables enabled.
(XEN) I/O virtualisation enabled
(XEN)  - Dom0 mode: Relaxed
(XEN) Interrupt remapping enabled
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using old ACK method
(XEN) Allocated console ring of 64 KiB.
(XEN) VMX: Supported advanced features:
(XEN)  - APIC MMIO access virtualisation
(XEN)  - APIC TPR shadow
(XEN)  - Extended Page Tables (EPT)
(XEN)  - Virtual-Processor Identifiers (VPID)
(XEN)  - Virtual NMI
(XEN)  - MSR direct-access bitmap
(XEN)  - Unrestricted Guest
(XEN)  - APIC Register Virtualization
(XEN)  - Virtual Interrupt Delivery
(XEN)  - Posted Interrupt Processing
(XEN)  - VMCS shadowing
(XEN)  - VM Functions
(XEN)  - Virtualisation Exceptions
(XEN)  - Page Modification Logging
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB
(XEN) CMCI: threshold 0x2 too large for CPU16 bank 17, using 0x1
(XEN) CMCI: threshold 0x2 too large for CPU16 bank 18, using 0x1
(XEN) CMCI: threshold 0x2 too large for CPU16 bank 19, using 0x1
(XEN) Brought up 32 CPUs
(XEN) Dom0 has maximum 1224 PIRQs
(XEN) *** LOADING DOMAIN 0 ***
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x1d6b000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   000000202e000000->0000002030000000 (33053699 pages to be allocated)
(XEN)  Init. ramdisk: 000000207ecd0000->000000207ffffbda
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: ffffffff81000000->ffffffff81d6b000
(XEN)  Init. ramdisk: 0000000000000000->0000000000000000
(XEN)  Phys-Mach map: 0000008000000000->000000800fc47998
(XEN)  Start info:    ffffffff81d6b000->ffffffff81d6b4b4
(XEN)  Page tables:   ffffffff81d6c000->ffffffff81d7f000
(XEN)  Boot stack:    ffffffff81d7f000->ffffffff81d80000
(XEN)  TOTAL:         ffffffff80000000->ffffffff82000000
(XEN)  ENTRY ADDRESS: ffffffff81b35180
(XEN) Dom0 has maximum 32 VCPUs
(XEN) Scrubbing Free RAM on 2 nodes using 16 CPUs
(XEN) ..................................................................done.
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) Xen is relinquishing VGA console.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen)
(XEN) Freed 312kB init memory
(XEN) d1v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d1v0 Walking EPT tables for GFN 4861ff:
(XEN) d1v0  gfn exceeds max_mapped_pfn 400000
(XEN) d1v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 1 (vcpu#0) crashed on cpu#19:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    19
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d1v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d2v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d2v0 Walking EPT tables for GFN 4861ff:
(XEN) d2v0  gfn exceeds max_mapped_pfn 400000
(XEN) d2v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 2 (vcpu#0) crashed on cpu#15:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    15
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d2v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d3v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d3v0 Walking EPT tables for GFN 4861ff:
(XEN) d3v0  gfn exceeds max_mapped_pfn 400000
(XEN) d3v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 3 (vcpu#0) crashed on cpu#20:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    20
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d3v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d4v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d4v0 Walking EPT tables for GFN 4861ff:
(XEN) d4v0  gfn exceeds max_mapped_pfn 400000
(XEN) d4v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 4 (vcpu#0) crashed on cpu#12:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    12
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d4v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d5v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d5v0 Walking EPT tables for GFN 4861ff:
(XEN) d5v0  gfn exceeds max_mapped_pfn 400000
(XEN) d5v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 5 (vcpu#0) crashed on cpu#28:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    28
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d5v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d6v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d6v0 Walking EPT tables for GFN 4861ff:
(XEN) d6v0  gfn exceeds max_mapped_pfn 400000
(XEN) d6v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 6 (vcpu#0) crashed on cpu#24:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    24
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d6v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d7v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d7v0 Walking EPT tables for GFN 4861ff:
(XEN) d7v0  gfn exceeds max_mapped_pfn 400000
(XEN) d7v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 7 (vcpu#0) crashed on cpu#30:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    30
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d7v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d8v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d8v0 Walking EPT tables for GFN 4861ff:
(XEN) d8v0  gfn exceeds max_mapped_pfn 400000
(XEN) d8v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 8 (vcpu#0) crashed on cpu#8:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    8
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d8v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d9v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d9v0 Walking EPT tables for GFN 4861ff:
(XEN) d9v0  gfn exceeds max_mapped_pfn 400000
(XEN) d9v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 9 (vcpu#0) crashed on cpu#5:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    5
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d9v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d10v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d10v0 Walking EPT tables for GFN 4861ff:
(XEN) d10v0  gfn exceeds max_mapped_pfn 400000
(XEN) d10v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 10 (vcpu#0) crashed on cpu#0:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    0
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d10v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d11v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d11v0 Walking EPT tables for GFN 4861ff:
(XEN) d11v0  gfn exceeds max_mapped_pfn 400000
(XEN) d11v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 11 (vcpu#0) crashed on cpu#10:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    10
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d11v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d12v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d12v0 Walking EPT tables for GFN 4861ff:
(XEN) d12v0  gfn exceeds max_mapped_pfn 400000
(XEN) d12v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 12 (vcpu#0) crashed on cpu#5:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    5
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d12v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d13v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d13v0 Walking EPT tables for GFN 4861ff:
(XEN) d13v0  gfn exceeds max_mapped_pfn 400000
(XEN) d13v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 13 (vcpu#0) crashed on cpu#14:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    14
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d13v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d14v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d14v0 Walking EPT tables for GFN 4861ff:
(XEN) d14v0  gfn exceeds max_mapped_pfn 400000
(XEN) d14v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 14 (vcpu#0) crashed on cpu#1:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    1
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d14v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d15v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d15v0 Walking EPT tables for GFN 4861ff:
(XEN) d15v0  gfn exceeds max_mapped_pfn 400000
(XEN) d15v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 15 (vcpu#0) crashed on cpu#28:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    28
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d15v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d16v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d16v0 Walking EPT tables for GFN 4861ff:
(XEN) d16v0  gfn exceeds max_mapped_pfn 400000
(XEN) d16v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 16 (vcpu#0) crashed on cpu#20:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    20
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d16v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d17v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d17v0 Walking EPT tables for GFN 4861ff:
(XEN) d17v0  gfn exceeds max_mapped_pfn 400000
(XEN) d17v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 17 (vcpu#0) crashed on cpu#20:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    20
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d17v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d18v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d18v0 Walking EPT tables for GFN 4861ff:
(XEN) d18v0  gfn exceeds max_mapped_pfn 400000
(XEN) d18v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 18 (vcpu#0) crashed on cpu#4:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    4
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d18v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d19v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d19v0 Walking EPT tables for GFN 4861ff:
(XEN) d19v0  gfn exceeds max_mapped_pfn 400000
(XEN) d19v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 19 (vcpu#0) crashed on cpu#19:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    19
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d19v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d20v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d20v0 Walking EPT tables for GFN 4861ff:
(XEN) d20v0  gfn exceeds max_mapped_pfn 400000
(XEN) d20v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 20 (vcpu#0) crashed on cpu#24:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    24
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d20v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
(XEN) d21v0 EPT violation 0x182 (-w-/---) gpa 0x000004861ff000 mfn 0xffffffffffffffff type 4
(XEN) d21v0 Walking EPT tables for GFN 4861ff:
(XEN) d21v0  gfn exceeds max_mapped_pfn 400000
(XEN) d21v0  --- GLA 0xffff8804861ff000
(XEN) domain_crash called from vmx.c:3108
(XEN) Domain 21 (vcpu#0) crashed on cpu#0:
(XEN) ----[ Xen-4.8.0  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    0
(XEN) RIP:    0010:[<ffffffff8132c462>]
(XEN) RFLAGS: 0000000000010016   CONTEXT: hvm guest (d21v0)
(XEN) rax: 0000000000000000   rbx: 0000000000000001   rcx: 000000000000003f
(XEN) rdx: 0000000000000006   rsi: ffffffff81ae5688   rdi: ffff8804861ff000
(XEN) rbp: 00000000004861ff   rsp: ffffffff81a03c20   r8:  0000000000000040
(XEN) r9:  0000000000000000   r10: 0000000100000000   r11: 00000004862dc000
(XEN) r12: 0000000000000001   r13: ffff880001d3e050   r14: ffffffff81a66804
(XEN) r15: 0000000481400000   cr0: 0000000080050033   cr4: 0000000000040620
(XEN) cr3: 0000000001a06000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: 0010
(XEN) Guest stack trace from rsp=ffffffff81a03c20:
(XEN)   Fault while accessing guest memory.
root@cknowsvr01:/home/diederik#

[-- Attachment #1.1.4: xen-xl-pci-assign-system-hang.txt --]
[-- Type: text/plain, Size: 2571 bytes --]

VGA card:
root@cknowsvr01:/home/diederik# lspci | grep -i vga
02:00.0 VGA compatible controller: NVIDIA Corporation NV44 [GeForce 6200 TurboCache] (rev a1)


Uninstalled the nvidia proprietary driver (Debian package) and installed nouveau and rebooted my server, which resulted in the following kernel modules being loaded:
diederik@cknowsvr01:~$ lsmod | grep nou
nouveau              1544192  1
mxm_wmi                16384  1 nouveau
video                  40960  1 nouveau
ttm                    98304  1 nouveau
drm_kms_helper        155648  1 nouveau
drm                   360448  4 nouveau,ttm,drm_kms_helper
wmi                    16384  2 mxm_wmi,nouveau
button                 16384  1 nouveau
i2c_algo_bit           16384  2 igb,nouveau

After reboot I did: 
root@cknowsvr01:/home/diederik# xl pci-assignable-list
libxl: error: libxl_pci.c:409:libxl_device_pci_assignable_list: Looks like pciback driver not loaded

So forgot to load the xen-pciback driver, so fixed that:
root@cknowsvr01:/home/diederik# modprobe xen-pciback

root@cknowsvr01:/home/diederik# xl pci-assignable-list

Then tried to create a vm in which I had enabled pci-passthrough:
root@cknowsvr01:/home/diederik# xl create -c /etc/xen/tradestation.home.cknow.org.cfg 
Parsing config from /etc/xen/tradestation.home.cknow.org.cfg
libxl: notice: libxl_numa.c:518:libxl__get_numa_candidate: NUMA placement failed, performance might be affected
libxl: error: libxl_qmp.c:287:qmp_handle_error_response: received an error message from QMP server: Could not set password
libxl: error: libxl_pci.c:1225:libxl__device_pci_add: PCI device 0:2:0.0 is not assignable
libxl: error: libxl_pci.c:1304:libxl__add_pcidevs: libxl_device_pci_add failed: -3
libxl: error: libxl_create.c:1461:domcreate_attach_devices: unable to add pci devices
libxl: error: libxl.c:1575:libxl__destroy_domid: non-existant domain 1
libxl: error: libxl.c:1534:domain_destroy_callback: unable to destroy guest with domid 1
libxl: error: libxl.c:1463:domain_destroy_cb: destruction of domain 1 failed
root@cknowsvr01:/home/diederik# xl list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0 112773    32     r-----      54.3

which failed.
Realizing I forgot to add my vga card, so tried to fix that:
root@cknowsvr01:/home/diederik# xl pci-assignable-add 02:00.0
at which my system hang and eventually my ssh-session got disconnected and am unable to connect again. Plugging in a physical keyboard didn't help and a hard reset seems to be the only way out.

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^ permalink raw reply	[flat|nested] 13+ messages in thread
end of thread, other threads:[~2017-01-24 21:43 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-01-18  1:37 Problems with pci/vga passthrough Diederik de Haas
2017-01-18 16:20 ` Is: EPT violations. Was:Re: " Konrad Rzeszutek Wilk
2017-01-18 16:42   ` Jan Beulich
     [not found]     ` <1890797.J70arCvF62@bagend>
2017-01-19  8:18       ` Jan Beulich
2017-01-18 16:47   ` George Dunlap
2017-01-22 18:30   ` Diederik de Haas
2017-01-24 15:59     ` Diederik de Haas
2017-01-24 16:11       ` Jan Beulich
2017-01-24 17:24         ` Diederik de Haas
2017-01-24 18:28         ` Boris Ostrovsky
2017-01-24 18:44           ` Diederik de Haas
2017-01-24 18:51             ` Boris Ostrovsky
2017-01-24 21:43               ` Boris Ostrovsky

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