RE: [Xen-devel] Unknown interrupt on x86_64 Xen on ES7000 x86_64

["Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx>]

> 
> > I am getting an "Unknown Interrupt" message with changeset 6050 on
the
> > ES7000 x86_64 box running x86_64 SLES9 SP2 RC3. The system dies
after
> > that. Any idea why this could be happening?
> > I am not sure if this is related to
> > http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=122.
> 
> Definitely a different bug, but this one shouldn;t be hard to track
> down. Probably you are talking a page fault very early during boot.
I'd
> suggest working out where this occurs by adding printk statements
> (probably paging_init() in arch/x86/x86_64/mm.c would be a good place
> to start).

I put a few printks in paging_init and friends. This is the call tree
that I mapped out.
 
paging_init()->alloc_domheap_pages()->alloc_heap_pages()-> map_alloc() 

It looks like the page fault/interrupt is happening in map_alloc(). I
see that alloc_heap_pages() and map_alloc() are called before without
any issues. Not sure why it is tripping up now. Any ideas?

> 
> > When I tried the same changeset on my Dell PowerEdge 470 box I am
> > seeing
> > something totally different and very scary :-)
> > Is anybody else seeing this?
> 
> I think the HPET on your system is not working for some reason! Please
> try removing the call to init_hpet() from init_platform_timer() in
> arch/x86/time.c -- just fall back to init_pit(). You should then see
> 'Platform timer is xxxMHz PIT' rather than 'Platform timer is xxxMHz
> HPET' in Xen's boot log.
> 
> If that fixes your problem (very likely) then we can try and work out
> why the HPET is failing to work. Perhaps see whether native Linux
> successfully uses it, for example.

I tried that patch. The serial output now shows "Platform timer is
1.193MHz PIT" but that does not fix the problem. I am still getting
those fatal errors.

Aravindh

---------------------------------------------------------------------
DELL POWEREDGE 470

_
 \ \/ /___ _ __   |___ / / _ \     __| | _____   _____| |
  \  // _ \ '_ \    |_ \| | | |__ / _` |/ _ \ \ / / _ \ |
  /  \  __/ | | |  ___) | |_| |__| (_| |  __/\ V /  __/ |
 /_/\_\___|_| |_| |____(_)___/    \__,_|\___| \_/ \___|_|

 http://www.cl.cam.ac.uk/netos/xen
 University of Cambridge Computer Laboratory

 Xen version 3.0-devel (root@) (gcc version 3.3.3 (SuSE Linux)) Mon Aug
8 15:19
:07 EDT 2005
 Latest ChangeSet: Mon Aug  8 10:39:29 2005
f586b9ecd47476357b685707e21c7fc274cb
d51c

(XEN) Physical RAM map:
(XEN)  0000000000000000 - 00000000000a0000 (usable)
(XEN)  00000000000f0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 000000007fe8ac00 (usable)
(XEN)  000000007fe8ac00 - 000000007fe8cc00 (ACPI NVS)
(XEN)  000000007fe8cc00 - 000000007fe8ec00 (ACPI data)
(XEN)  000000007fe8ec00 - 0000000080000000 (reserved)
(XEN)  00000000e0000000 - 00000000f0000000 (reserved)
(XEN)  00000000fec00000 - 00000000fed00400 (reserved)
(XEN)  00000000fed20000 - 00000000feda0000 (reserved)
(XEN)  00000000fee00000 - 00000000fef00000 (reserved)
(XEN)  00000000ffb00000 - 0000000100000000 (reserved)
(XEN) System RAM: 2046MB (2095272kB)
(XEN) Xen heap: 14MB (14616kB)
(XEN) found SMP MP-table at 000fe710
(XEN) DMI 2.3 present.
(XEN) Using APIC driver default
(XEN) ACPI: RSDP (v000 DELL                                  ) @
0x00000000000fe
bf0
(XEN) ACPI: RSDT (v001 DELL    WS 470  0x00000007 ASL  0x00000061) @
0x000000000
00fcb83
(XEN) ACPI: FADT (v001 DELL    WS 470  0x00000007 ASL  0x00000061) @
0x000000000
00fcbd7
(XEN) ACPI: SSDT (v001   DELL    st_ex 0x00001000 MSFT 0x0100000d) @
0x00000000f
ffc7674
(XEN) ACPI: MADT (v001 DELL    WS 470  0x00000007 ASL  0x00000061) @
0x000000000
00fcc4b
(XEN) ACPI: BOOT (v001 DELL    WS 470  0x00000007 ASL  0x00000061) @
0x000000000
00fccd5
(XEN) ACPI: ASF! (v016 DELL    WS 470  0x00000007 ASL  0x00000061) @
0x000000000
00fccfd
(XEN) ACPI: MCFG (v001 DELL    WS 470  0x00000007 ASL  0x00000061) @
0x000000000
00fcd64
(XEN) ACPI: HPET (v001 DELL    WS 470  0x00000007 ASL  0x00000061) @
0x000000000
00fcda2
(XEN) ACPI: DSDT (v001   DELL    dt_ex 0x00001000 MSFT 0x0100000d) @
0x000000000
0000000
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
(XEN) Processor #0 15:4 APIC version 20
(XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x06] enabled)
(XEN) Processor #6 15:4 APIC version 20
(XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] enabled)
(XEN) Processor #1 15:4 APIC version 20
(XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] enabled)
(XEN) Processor #7 15:4 APIC version 20
(XEN) ACPI: LAPIC_NMI (acpi_id[0xff] high level lint[0x1])
(XEN) ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) ACPI: IOAPIC (id[0x09] address[0xfec80000] gsi_base[24])
(XEN) IOAPIC[1]: apic_id 9, version 32, address 0xfec80000, GSI 24-47
(XEN) ACPI: IOAPIC (id[0x0a] address[0xfec80800] gsi_base[48])
(XEN) IOAPIC[2]: apic_id 10, version 32, address 0xfec80800, GSI 48-71
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
(XEN) ACPI: IRQ0 used by override.
(XEN) ACPI: IRQ2 used by override.
(XEN) ACPI: IRQ9 used by override.
(XEN) Enabling APIC mode:  Flat.  Using 3 I/O APICs
(XEN) ACPI: HPET id: 0x8086a201 base: 0xfed00000
(XEN) Using ACPI (MADT) for SMP configuration information
(XEN) Initializing CPU#0
(XEN) Detected 2992.806 MHz processor.
(XEN) Using scheduler: Simple EDF Scheduler (sedf)
(XEN) CPU: Trace cache: 12K uops, L1 D cache: 16K
(XEN) CPU: L2 cache: 1024K
(XEN) CPU: Physical Processor ID: 0
(XEN) CPU0: Intel(R) Xeon(TM) CPU 3.00GHz stepping 01
(XEN) Booting processor 1/1 eip 90000
(XEN) Initializing CPU#1
(XEN) CPU: Trace cache: 12K uops, L1 D cache: 16K
(XEN) CPU: L2 cache: 1024K
(XEN) CPU: Physical Processor ID: 0
(XEN) CPU1: Intel(R) Xeon(TM) CPU 3.00GHz stepping 01
(XEN) Booting processor 2/6 eip 90000
(XEN) Initializing CPU#2
(XEN) CPU: Trace cache: 12K uops, L1 D cache: 16K
(XEN) CPU: L2 cache: 1024K
(XEN) CPU: Physical Processor ID: 3
(XEN) CPU2: Intel(R) Xeon(TM) CPU 3.00GHz stepping 01
(XEN) Booting processor 3/7 eip 90000
(XEN) Initializing CPU#3
(XEN) CPU: Trace cache: 12K uops, L1 D cache: 16K
(XEN) CPU: L2 cache: 1024K
(XEN) CPU: Physical Processor ID: 3
(XEN) CPU3: Intel(R) Xeon(TM) CPU 3.00GHz stepping 01
(XEN) Total of 4 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN) ..TIMER: vector=0x31 pin1=2 pin2=-1
(XEN) checking TSC synchronization across 4 CPUs: passed.
(XEN) Platform timer is 1.193MHz PIT
(XEN) Brought up 4 CPUs
(XEN) mtrr: v2.0 (20020519)
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen-ELF header found:
'GUEST_OS=linux,GUEST_VER=2.6,XEN_VER=3.0,VIRT_BASE=
0xffffffff80000000,LOADER=generic'
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   0000000020000000->0000000040000000
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: ffffffff80100000->ffffffff805a4085
(XEN)  Init. ramdisk: ffffffff805a5000->ffffffff80b25400
(XEN)  Phys-Mach map: ffffffff80b26000->ffffffff80ba6000
(XEN)  Page tables:   ffffffff80ba6000->ffffffff80bb1000
(XEN)  Start info:    ffffffff80bb1000->ffffffff80bb2000
(XEN)  Boot stack:    ffffffff80bb2000->ffffffff80bb3000
(XEN)  TOTAL:         ffffffff80000000->ffffffff81000000
(XEN)  ENTRY ADDRESS: ffffffff80100000
(XEN) Initrd len 0x580400, start at 0xffffffff805a5000
(XEN) Scrubbing Free RAM: ...................Assertion 'tsc_elapsed32 !=
0' fail
ed, line 821, file time.c
(XEN) Assertion 'tsc_elapsed32 != 0' failed, line 821, file time.c
(XEN) Assertion 'tsc_elapsed32 != 0' failed, line 821, file time.c
(XEN) BUG at time.c:821
(XEN) BUG at time.c:821
(XEN) CPU:    2
(XEN) EIP:    e010:[<ffff830000136909>]CPU:    3
(XEN) EIP:    e010:[<ffff830000136909>]
local_time_calibration+0x479/0x600
(XEN) EFLAGS: 0000000000010282
(XEN) rax: 0000000000000000   rbx: 000000007fffffff   rcx:
00000000000016a3   rd
x: 00000000000016a3
(XEN) rsi: 0000000000000001   rdi: ffff8300000b8fa0   rbp:
0000000000000000   rs
p: ffff830000fefde0
(XEN) r8:  0000000000000001   r9:  0000000000000017   r10:
ffff8300000b8000   r1
1: 00000000000016a4
(XEN) r12: 00000000ffffcee5   r13: 00000000003da083   r14:
000000003b9aca00   r1
5: 0000000000000000
(XEN) Xen stack trace from rsp=ffff830000fefde0:
(XEN)    0000000000000000 000000003bd8f5be 0000000000000002
8000000000178c80 000
000011363b24e 0000000061010fd2 0000000200180400 ffff830000180500
(XEN)    ffff830000136490 0000000000000000 ffff830000180400 BUG at
time.c:821
(XEN)  local_time_calibration+0x479/0x600
(XEN) 0000000000000100 000000003bd9b83f ffff830000109345
0000000000000100 ffff83
0000180400 .CPU:    1
(XEN) EIP:    e010:[<ffff830000136909>]EFLAGS: 0000000000010282
(XEN)
(XEN)    0000000000000002 ffff830000189880 ffff83000018a780
ffff830000189780 000
0000000000002 0000000000000000 0000000000000000 ffff830000118caa
(XEN)    000000ef00000000 0000000000000100 ffffffffffffc000
0000000000000002 fff
f8300001a6f10 ffff830000124c1c 0000000000000002 ffff830000ff2080
(XEN)    ffff830000feff28 0000000000000000 0000000000000000
ffff830000124cf0 000
0000000000000 00000000ffffffff 0000000000000000 ffff830000161a28
(XEN)    00000000a5a5a5a5 0000000000000000 0000000000000000
0000000000000000 000
0000000000000 0000000000000000 0000000000000000 0000000000000000
(XEN)    0000000000000000 0000000000000000 0000000000000000
0000000000000000 000
0000000000000 0000000000000000 0000000000000000 0000000000000000
(XEN)    0000000000000000 0000000000000000 0000000000000000
0000000000000000 000
0000000000000 0000000000000000 0000000000000000 0000000000000000
(XEN)    0000000000000000 0000000000000000 0000000000000002
ffff830000ff2080
(XEN) Xen call trace from rsp=ffff830000fefde0:
(XEN)    rax: 0000000000000000   rbx: 000000007fffffff   rcx:
00000000000016bb
 rdx: 00000000000016bb
(XEN) [<ffff830000136490>] local_time_calibration+0x479/0x600
(XEN)  local_time_calibration+0x0/0x600
(XEN) [<ffff830000109345>]rsi: 0000000000000001   rdi: ffff8300000b8fa0
rbp: 0
000000000000000   rsp: ffff830000febde0
(XEN)  ac_timer_softirq_action+0x185/0x300
(XEN) [<ffff830000118caa>]r8:  0000000000000001   r9:  0000000000000017
r10: f
fff8300000b8000   r11: 00000000000016bc
(XEN)  do_softirq+0xaa/0xc0
(XEN) [<ffff830000124c1c>]r12: 00000000ffffd22b   r13: 00000000003d8cde
r14: 0
00000003b9aca00   r15: 0000000000000000
(XEN)  idle_loop+0xac/0xd0
(XEN) [<ffff830000124cf0>]Xen stack trace from rsp=ffff830000febde0:
(XEN)     startup_cpu_idle_loop+0xb0/0xc0
(XEN) [<ffff830000161a28>]ffff83000012a203 000000003bd8c70d
0000000000000003 800
0000000178c80  start_secondary+0xb8/0xc0
(XEN) 00000001136375f4 0000000061011d44 0000000300180400
ffff830000180580
(XEN)
(XEN) ffff830000136490 0000000000000000 ffff830000180400 EFLAGS:
000000000001028
2
(XEN) rax: 0000000000000000   rbx: 000000007fffffff   rcx:
0000000000001a07   rd
x: 0000000000001a07
(XEN) 0000000000000180
****************************************
Panic on CPU2:
CPU2 FATAL TRAP: vector = 6 (invalid operand)
[error_code=0000]
****************************************

Reboot in five seconds...
000000003bd9888e rsi: 0000000000000001   rdi: ffff8300000b8fa0   rbp:
0000000000
000000   rsp: ffff830000ff7de0
(XEN) ffff830000109345 r8:  0000000000000001   r9:  000000000000004d
r10: ffff
8300000b8000   r11: 0000000000001a08
(XEN) r12: 00000000ffffbe86   r13: 00000000003d68db   r14:
000000003b9aca00   r1
5: 0000000000000000
(XEN) 0000000000000180 Xen stack trace from rsp=ffff830000ff7de0:
(XEN)    ffff830000180400 0000000000000000
(XEN)    000000003bd8a648 0000000000000003 ffff830000189900
ffff83000018a780 fff
f830000189780 0000000000000003 0000000000000000 0000000000000000
ffff830000118ca
a 0000000000000001
(XEN)    000000ef00000000 0000000000000180 ffffffffffffc000
0000000000000003 fff
f8300001a6f10 8000000000178c80 ffff830000124c1c 0000000000000003
ffff830000ff008
0
(XEN)    00000001136320f7 000000006100f82d 0000000100180400
ffff830000febf28 000
0000000000000 0000000000000000 ffff830000124cf0 0000000000000000
00000000fffffff
f ffff830000180480
(XEN)    ffff830000136490 0000000000000000 ffff830000180400
0000000000000080 000
000003bd95f49 ffff830000109345 0000000000000000 .0000000000000080
ffff8300001804
00
(XEN)    0000000000000001 ffff830000161a28 ffff830000189800
ffff83000018a780
(XEN)    00000000a5a5a5a5 0000000000000000 0000000000000000
0000000000000000 000
0000000000000 ffff830000189780 0000000000000000 0000000000000000
000000000000000
0
(XEN)    0000000000000001 0000000000000000 0000000000000000
0000000000000000 000
0000000000000 0000000000000000 0000000000000000 0000000000000000
000000000000000
0 0000000000000000 0000000000000000 ffff830000118caa
(XEN)
(XEN)    000000ef00000000 0000000000000000 0000000000000000
0000000000000000 000
0000000000000 0000000000000000 0000000000000000 0000000000000000
000000000000000
0 0000000000000080
(XEN)    0000000000000000 0000000000000000 0000000000000003
ffff830000ff0080
(XEN) ffffffffffffc000 Xen call trace from rsp=ffff830000febde0:
(XEN)    [<ffff83000012a203>]0000000000000001  do_IRQ+0x1a3/0x210
(XEN) ffff8300001a6f10 [<ffff830000136490>]ffff830000124c1c
local_time_calibrat
ion+0x0/0x600
(XEN) 0000000000000001 ffff830000ffa080
(XEN)    [<ffff830000109345>]ffff830000ff7f28
ac_timer_softirq_action+0x185/0x3
00
(XEN) 0000000000000000 [<ffff830000118caa>]0000000000000000
do_softirq+0xaa/0xc
0
(XEN) ffff830000124cf0 [<ffff830000124c1c>]0000000000000000
idle_loop+0xac/0xd0
(XEN) 00000000ffffffff [<ffff830000124cf0>]0000000000000000
startup_cpu_idle_lo
op+0xb0/0xc0
(XEN) ffff830000161a28
(XEN)    [<ffff830000161a28>]
(XEN)    done.
(XEN) 00000000a5a5a5a5  start_secondary+0xb8/0xc0
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
input to Xen
).
(XEN)
(XEN) 0000000000000000 0000000000000000 0000000000000000
****************************************
Panic on CPU3:
CPU3 FATAL TRAP: vector = 6 (invalid operand)
[error_code=0000]
****************************************

Reboot in five seconds...
0000000000000000 0000000000000000 0000000000000000 0000000000000000
(XEN)    0000000000000000 0000000000000000 0000000000000000
0000000000000000 000
0000000000000 0000000000000000 0000000000000000 0000000000000000
(XEN)    0000000000000000 0000000000000000 0000000000000000
0000000000000000 000
0000000000000 0000000000000000 0000000000000000 0000000000000000
(XEN)    0000000000000000 0000000000000000 0000000000000001
ffff830000ffa080
(XEN) Xen call trace from rsp=ffff830000ff7de0:
(XEN)    [<ffff830000136490>] local_time_calibration+0x0/0x600
(XEN) [<ffff830000109345>] ac_timer_softirq_action+0x185/0x300
(XEN) [<ffff830000118caa>] do_softirq+0xaa/0xc0
(XEN) [<ffff830000124c1c>] idle_loop+0xac/0xd0
(XEN) [<ffff830000124cf0>] startup_cpu_idle_loop+0xb0/0xc0
(XEN) [<ffff830000161a28>] start_secondary+0xb8/0xc0
(XEN)

****************************************
Panic on CPU1:
CPU1 FATAL TRAP: vector = 6 (invalid operand)
[error_code=0000]
****************************************

Reboot in five seconds...
Linux version 2.6.12.3-xen0 (root@xenbox) (gcc version 3.3.3 (SuSE
Linux)) #2 Mo
n Aug 8 15:02:25 EDT 2005
kernel direct mapping tables upto ffff880020000000 @ 1000000-1102000
Registering memory for bootmem: from  1200000, size = 1ee00000
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x06] enabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] enabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] enabled)
ACPI: LAPIC_NMI (acpi_id[0xff] high level lint[0x1])
ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
ACPI: IOAPIC (id[0x09] address[0xfec80000] gsi_base[24])
IOAPIC[1]: apic_id 9, version 32, address 0xfec80000, GSI 24-47
ACPI: IOAPIC (id[0x0a] address[0xfec80800] gsi_base[48])
IOAPIC[2]: apic_id 10, version 32, address 0xfec80800, GSI 48-71
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
Setting APIC routing to flat
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at 20000000 (gap: 20000000:e0000000)
Built 1 zonelists
Kernel command line: root=/dev/system/root64 console=tty0
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 131072 bytes)
Xen reported: 748.173 MHz processor.
Console: colour VGA+ 80x25
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Memory: 496896k/524288k available (2753k kernel code, 8872k reserved,
1160k data
, 268k init)
Mount-cache hash table entries: 256
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU:                   Intel(R) Xeon(TM) CPU 3.00GHz stepping 01
checking if image is initramfs...it isn't (bad gzip magic numbers);
looks like a
n initrd
NET: Registered protocol family 16
PCI: Using configuration type 1
ACPI: Subsystem revision 20050309
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
PCI: Transparent bridge - 0000:00:1e.0
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11 12 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 9 *10 11 12 15)
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 *9 10 11 12 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 9 *10 11 12 15)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 9 10 11 12 15) *0,
disabled.
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 9 10 11 12 15) *0,
disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 9 10 11 12 15) *0,
disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 *5 6 7 9 10 11 12 15)
xen_mem: Initialising balloon driver.
SCSI subsystem initialized
usbcore: registered new driver hub
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq".  If it helps, post a
report
Grant table initialized
IA-32 Microcode Update Driver: v1.14 <tigran@xxxxxxxxxxx>
Simple Boot Flag at 0x7a set to 0x1
IA32 emulation $Id: sys_ia32.c,v 1.32 2002/03/24 13:02:28 ak Exp $
Initializing Cryptographic API
Real Time Clock Driver v1.12
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
Floppy drive(s): fd0 is 1.44M
(XEN) Assertion 'tsc_elapsed32 != 0' failed, line 821, file time.c
(XEN) BUG at time.c:821
(XEN) CPU:    0
(XEN) EIP:    e010:[<ffff830000136909>]
local_time_calibration+0x479/0x600
(XEN) EFLAGS: 0000000000010286
(XEN) rax: 0000000000000000   rbx: 000000007fffffff   rcx:
00000000000033d5   rd
x: 00000000000033d5
(XEN) rsi: 0000000000000001   rdi: 00000000000002c3   rbp:
0000000000000000   rs
p: ffff830000107e10
(XEN) r8:  0000000000000000   r9:  0000000000000000   r10:
00000000000033c4   r1
1: 00000000000033d6
(XEN) r12: 00000000ffff4f37   r13: 000000003b9ac373   r14:
000000003b9aca00   r1
5: 0000000000000000
(XEN) Xen stack trace from rsp=ffff830000107e10:
(XEN)    0000000000000282 000000007736464b 0000000000000000
8000000000000000 000
00001c50c2f94 0000000112ab36bf 0000000000180400 ffff830000180400
(XEN)    ffff830000136490 0000000000000000 ffff830000180400
0000000000000000 000
000007737056b ffff830000109345 0000000000000000 ffff830000180400
(XEN)    0000000000000000 ffff830000189780 ffff83000018a780
ffff830000189780 000
0000000000000 ffff830000fe0080 ffff830000188200 ffff830000118caa
(XEN)    000000ef00000000 0000000000000000 ffffffffffffc000
0000000000000000 fff
f8300001a6f10 ffff830000124c1c ffff830000118636 ffff830000107f28
(XEN)    ffff830000179600 ffff830000fe0080 ffff830000fe0080
ffffffff80541fb0 000
0ffffffff8010 00000000ffffffff ffffffff80100038 ffffffff8042c900
(XEN)    0000000000020800 0000000000000286 0000000000000001
00000000ffff8b30 000
00000ffff8b34 0000000000000000 ffffffff80110b3e 0000000000000000
(XEN)    00000000ffff8b34 0000000000000001 0000010000000000
ffffffff80110b3e 000
000000000e033 0000000000000286 ffffffff80541f80 000000000000e02b
(XEN)    0000000000000000 0000000000000000 0000000000000000
0000000000000000 000
0000000000000 ffff830000179600
(XEN) Xen call trace from rsp=ffff830000107e10:
(XEN)    [<ffff830000136490>] local_time_calibration+0x0/0x600
(XEN) [<ffff830000109345>] ac_timer_softirq_action+0x185/0x300
(XEN) [<ffff830000118caa>] do_softirq+0xaa/0xc0
(XEN) [<ffff830000124c1c>] idle_loop+0xac/0xd0
(XEN) [<ffff830000118636>] do_block+0x46/0x50
(XEN)

****************************************
Panic on CPU0:
CPU0 FATAL TRAP: vector = 6 (invalid operand)
[error_code=0000]
****************************************

Reboot in five seconds...

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