Re: [Xen-devel] problem using compiled kernel -- Sisu

 On 07/29/2010 05:29 PM, Sisu Xi wrote:

Hi,

I reinstalled Fedora 13 on my machine, with my graphic card removed
(using the integrated one on my motherboard). Still Xen would not
start normally. My fedora was on /dev/sda3(sda1&2 are windows). I just
used one volume without swap. Does Xen require swap as a must?

No, Xen doesn't need swap at all. Linux's requirement for swap isunchanged under Xen (ie, if you don't need it native, you don't need itunder Xen).

In any case, your crashes have nothing to do with swap; you've managedto get an entirely new failure-mode. Looks like it might be somethingto do with ACPI, but I'm not sure what.

Below is the serial console output:

Thanks very much!

Best!

Yours,
Sisu

__  __            _  _    ___   _             ____
  \ \/ /___ _ __   | || |  / _ \ / |   _ __ ___| ___|    _ __  _ __ ___
   \  // _ \ '_ \  | || |_| | | || |__| '__/ __|___ \ __| '_ \| '__/ _ \
   /  \  __/ | | | |__   _| |_| || |__| | | (__ ___) |__| |_) | | |  __/
  /_/\_\___|_| |_|    |_|(_)___(_)_|  |_|  \___|____/   | .__/|_|  \___|
                                                        |_|
(XEN) Xen version 4.0.1-rc5-pre (xisisu@xxxxxxxxxxxxx) (gcc version
4.4.4 20100630 (Red Hat 4.4.4-10) (GCC) ) Thu Jul 29 11:28:19 EDT 2010
(XEN) Latest ChangeSet: Sun Jul 25 22:22:43 2010 +0100 21287:e6b5b2cb8146
(XEN) Console output is synchronous.
(XEN) Command line: dom0_mem=1024M loglvl=all guest_loglvl=all
sync_console console_to_ring com1=115200,8n1 console=com1
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: V2; EDID transfer time: 1 seconds
(XEN) Disc information:
(XEN)  Found 1 MBR signatures
(XEN)  Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 00000000000a0000 (usable)
(XEN)  00000000000f0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 000000007f686c00 (usable)
(XEN)  000000007f686c00 - 000000007f688c00 (ACPI NVS)
(XEN)  000000007f688c00 - 000000007f68ac00 (ACPI data)
(XEN)  000000007f68ac00 - 0000000080000000 (reserved)
(XEN)  00000000f0000000 - 00000000f4000000 (reserved)
(XEN)  00000000fec00000 - 00000000fed00400 (reserved)
(XEN)  00000000fed20000 - 00000000feda0000 (reserved)
(XEN)  00000000fee00000 - 00000000fef00000 (reserved)
(XEN)  00000000ffb00000 - 0000000100000000 (reserved)
(XEN) System RAM: 2038MB (2087064kB)
(XEN) ACPI: RSDP 000FEB00, 0024 (r2 DELL  )
(XEN) ACPI: XSDT 000FD24F, 005C (r1 DELL    GX620          7 ASL        61)
(XEN) ACPI: FACP 000FD347, 00F4 (r3 DELL    GX620          7 ASL        61)
(XEN) ACPI: DSDT FFFD32F4, 3D69 (r1   DELL    dt_ex     1000 INTL 20050309)
(XEN) ACPI: FACS 7F686C00, 0040
(XEN) ACPI: SSDT FFFD717C, 00AA (r1   DELL    st_ex     1000 INTL 20050309)
(XEN) ACPI: APIC 000FD43B, 0072 (r1 DELL    GX620          7 ASL        61)
(XEN) ACPI: BOOT 000FD4AD, 0028 (r1 DELL    GX620          7 ASL        61)
(XEN) ACPI: ASF! 000FD4D5, 0067 (r16 DELL    GX620          7 ASL        61)
(XEN) ACPI: MCFG 000FD53C, 003E (r1 DELL    GX620          7 ASL        61)
(XEN) ACPI: HPET 000FD57A, 0038 (r1 DELL    GX620          7 ASL        61)
(XEN) No NUMA configuration found
(XEN) Faking a node at 0000000000000000-000000007f686000
(XEN) Xen heap: 8MB (8852kB)
(XEN) Domain heap initialised
(XEN) found SMP MP-table at 000fe710
(XEN) DMI 2.3 present.
(XEN) Using APIC driver default
(XEN) ACPI: PM-Timer IO Port: 0x808
(XEN) ACPI: ACPI SLEEP INFO: pm1x_cnt[804,0], pm1x_evt[800,0]
(XEN) ACPI:                  wakeup_vec[7f686c0c], vec_size[20]
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
(XEN) Processor #0 15:6 APIC version 20
(XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
(XEN) Processor #1 15:6 APIC version 20
(XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x05] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] disabled)
(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: 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 1 I/O APICs
(XEN) ACPI: HPET id: 0x8086a201 base: 0xfed00000
(XEN) Using ACPI (MADT) for SMP configuration information
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 3391.772 MHz processor.
(XEN) CPU0: VMX disabled by BIOS.
(XEN) VMX: failed to initialise.
(XEN) CPU0: Intel Extended MCE MSRs (24) available
(XEN) Intel machine check reporting enabled
(XEN) I/O virtualisation disabled
(XEN) CPU1: Intel Extended MCE MSRs (24) available
(XEN) Total of 2 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN)  ->  Using new ACK method
(XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
(XEN) checking TSC synchronization across 2 CPUs: passed.
(XEN) Platform timer is 14.318MHz HPET
ˇ(XEN) Allocated console ring of 16 KiB.
(XEN) Brought up 2 CPUs
(XEN) microcode.c:73:d32767 microcode: CPU1 resumed
(XEN) HPET: 3 timers in total, 0 timers will be used for broadcast
(XEN) ACPI sleep modes: S3
(XEN) mcheck_poll: Machine check polling timer started.
(XEN) *** LOADING DOMAIN 0 ***
(XEN)  Xen  kernel: 32-bit, PAE, lsb
(XEN)  Dom0 kernel: 32-bit, PAE, lsb, paddr 0x400000 ->  0xca9000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   0000000038000000->000000003c000000 (245760 pages
to be allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: c0400000->c0ca9000
(XEN)  Init. ramdisk: c0ca9000->c22b9000
(XEN)  Phys-Mach map: c22b9000->c23b9000
(XEN)  Start info:    c23b9000->c23b947c
(XEN)  Page tables:   c23ba000->c23d3000
(XEN)  Boot stack:    c23d3000->c23d4000
(XEN)  TOTAL:         c0000000->c2800000
(XEN)  ENTRY ADDRESS: c0a25000
(XEN) Dom0 has maximum 2 VCPUs
(XEN) Scrubbing Free RAM: .........done.
(XEN) trace.c:89:d32767 calc_tinfo_first_offset: NR_CPUs 128,
offset_in_bytes 258, t_info_first_offset 65
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: All
(XEN) Guest Loglevel: All
(XEN) **********************************************
(XEN) ******* WARNING: CONSOLE OUTPUT IS SYNCHRONOUS
(XEN) ******* This option is intended to aid debugging of Xen by ensuring
(XEN) ******* that all output is synchronously delivered on the serial line.
(XEN) ******* However it can introduce SIGNIFICANT latencies and affect
(XEN) ******* timekeeping. It is NOT recommended for production use!
(XEN) **********************************************
(XEN) 3... 2... 1...
(XEN) *** Serial input ->  DOM0 (type 'CTRL-a' three times to switch
input to Xen)
(XEN) Freed 160kB init memory.
mapping kernel into physical memory
Xen: setup ISA identity maps
about to get started...
Reserving virtual address space above 0xf5800000
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 2.6.32.16 (xisisu@xxxxxxxxxxxxxxxxxxxxxxxx) (gcc version
4.4.4 20100630 (Red Hat 4.4.4-10) (GCC) ) #2 SMP PREEMPT Thu Jul 29
13:37:15 EDT 2010
KERNEL supported cpus:
   Intel GenuineIntel
   AMD AuthenticAMD
   NSC Geode by NSC
   Cyrix CyrixInstead
   Centaur CentaurHauls
   Transmeta GenuineTMx86
   Transmeta TransmetaCPU
   UMC UMC UMC UMC
released 0 pages of unused memory
BIOS-provided physical RAM map:
  Xen: 0000000000000000 - 00000000000a0000 (usable)
  Xen: 00000000000a0000 - 0000000000100000 (reserved)
  Xen: 0000000000100000 - 0000000040000000 (usable)
  Xen: 000000007f686c00 - 000000007f688c00 (ACPI NVS)
  Xen: 000000007f688c00 - 000000007f68ac00 (ACPI data)
  Xen: 000000007f68ac00 - 0000000080000000 (reserved)
  Xen: 00000000f0000000 - 00000000f4000000 (reserved)
  Xen: 00000000fec00000 - 00000000fed00400 (reserved)
  Xen: 00000000fed20000 - 00000000feda0000 (reserved)
  Xen: 00000000fee00000 - 00000000fef00000 (reserved)
  Xen: 00000000ffb00000 - 0000000100000000 (reserved)
bootconsole [xenboot0] enabled
DMI 2.3 present.
last_pfn = 0x40000 max_arch_pfn = 0x1000000
x86 PAT enabled: cpu 0, old 0x50100070406, new 0x7010600070106
init_memory_mapping: 0000000000000000-000000002cdfe000
NX (Execute Disable) protection: active
RAMDISK: 00ca9000 - 022b9000
ACPI: RSDP 000feb00 00024 (v02 DELL  )
ACPI: XSDT 000fd24f 0005C (v01 DELL    GX620   00000007 ASL  00000061)
ACPI: FACP 000fd347 000F4 (v03 DELL    GX620   00000007 ASL  00000061)
ACPI: DSDT fffd32f4 03D69 (v01   DELL    dt_ex 00001000 INTL 20050309)
ACPI: FACS 7f686c00 00040
ACPI: SSDT fffd717c 000AA (v01   DELL    st_ex 00001000 INTL 20050309)
ACPI: APIC 000fd43b 00072 (v01 DELL    GX620   00000007 ASL  00000061)
ACPI: BOOT 000fd4ad 00028 (v01 DELL    GX620   00000007 ASL  00000061)
ACPI: ASF! 000fd4d5 00067 (v16 DELL    GX620   00000007 ASL  00000061)
ACPI: MCFG 000fd53c 0003E (v01 DELL    GX620   00000007 ASL  00000061)
ACPI: HPET 000fd57a 00038 (v01 DELL    GX620   00000007 ASL  00000061)
Node: 0, start_pfn: 0, end_pfn: 40000
Reserving total of a00 pages for numa KVA remap
kva_start_pfn ~ 2c200 max_low_pfn ~ 2cdfe
max_pfn = 40000
306MB HIGHMEM available.
717MB LOWMEM available.
1 multicall(s) failed: cpu 0
Pid: 0, comm: swapper Not tainted 2.6.32.16 #2
Call Trace:
  [<c07b4cdf>] ? printk+0xf/0x18
  [<c04045ca>] xen_mc_flush+0x137/0x1f4
  [<c040530a>] xen_mc_issue+0x14/0x23
  [<c04063fa>] xen_set_pmd_hyper+0x7c/0xa3
  [<c042b8bb>] set_pmd_pfn+0xb3/0xc4
  [<c0a3c6c9>] initmem_init+0x4db/0x5f6
  [<c0a326e6>] ? __acpi_unmap_table+0x10/0x12
  [<c0a4da08>] ? acpi_table_parse_madt+0x16/0x18
  [<c0a3180e>] ? acpi_parse_lapic_addr_ovr+0x0/0x30
  [<c0a2b0e2>] setup_arch+0x826/0xa64
  [<c0442d04>] ? vprintk+0x35e/0x3a5
  [<c0406b5c>] ? xen_restore_fl+0x2f/0x58
  [<c0a255f9>] start_kernel+0xbc/0x38d
  [<c0a250af>] i386_start_kernel+0x9e/0xa5
  [<c0a28571>] xen_start_kernel+0x5b7/0x5bf
  [<c04090a9>] ? signal_fault+0x45/0x92
------------[ cut here ]------------
WARNING: at arch/x86/xen/multicalls.c:182 xen_mc_flush+0x1ec/0x1f4()
Hardware name: OptiPlex GX620
Modules linked in:
Pid: 0, comm: swapper Not tainted 2.6.32.16 #2
Call Trace:
  [<c0442140>] warn_slowpath_common+0x65/0x7c
  [<c040467f>] ? xen_mc_flush+0x1ec/0x1f4
  [<c0442164>] warn_slowpath_null+0xd/0x10
  [<c040467f>] xen_mc_flush+0x1ec/0x1f4
  [<c040530a>] xen_mc_issue+0x14/0x23
  [<c04063fa>] xen_set_pmd_hyper+0x7c/0xa3
  [<c042b8bb>] set_pmd_pfn+0xb3/0xc4
  [<c0a3c6c9>] initmem_init+0x4db/0x5f6
  [<c0a326e6>] ? __acpi_unmap_table+0x10/0x12
  [<c0a4da08>] ? acpi_table_parse_madt+0x16/0x18
  [<c0a3180e>] ? acpi_parse_lapic_addr_ovr+0x0/0x30
  [<c0a2b0e2>] setup_arch+0x826/0xa64
  [<c0442d04>] ? vprintk+0x35e/0x3a5
  [<c0406b5c>] ? xen_restore_fl+0x2f/0x58
  [<c0a255f9>] start_kernel+0xbc/0x38d
  [<c0a250af>] i386_start_kernel+0x9e/0xa5
  [<c0a28571>] xen_start_kernel+0x5b7/0x5bf
  [<c04090a9>] ? signal_fault+0x45/0x92
---[ end trace a7919e7f17c0a725 ]---
1 multicall(s) failed: cpu 0
Pid: 0, comm: swapper Tainted: G        W  2.6.32.16 #2
Call Trace:
  [<c07b4cdf>] ? printk+0xf/0x18
  [<c04045ca>] xen_mc_flush+0x137/0x1f4
  [<c040530a>] xen_mc_issue+0x14/0x23
  [<c04063fa>] xen_set_pmd_hyper+0x7c/0xa3
  [<c042b8bb>] set_pmd_pfn+0xb3/0xc4
  [<c0a3c6c9>] initmem_init+0x4db/0x5f6
  [<c0a326e6>] ? __acpi_unmap_table+0x10/0x12
  [<c0a4da08>] ? acpi_table_parse_madt+0x16/0x18
  [<c0a3180e>] ? acpi_parse_lapic_addr_ovr+0x0/0x30
  [<c0a2b0e2>] setup_arch+0x826/0xa64
  [<c0442d04>] ? vprintk+0x35e/0x3a5
  [<c0406b5c>] ? xen_restore_fl+0x2f/0x58
  [<c0a255f9>] start_kernel+0xbc/0x38d
  [<c0a250af>] i386_start_kernel+0x9e/0xa5
  [<c0a28571>] xen_start_kernel+0x5b7/0x5bf
  [<c04090a9>] ? signal_fault+0x45/0x92
------------[ cut here ]------------
WARNING: at arch/x86/xen/multicalls.c:182 xen_mc_flush+0x1ec/0x1f4()
Hardware name: OptiPlex GX620
Modules linked in:
Pid: 0, comm: swapper Tainted: G        W  2.6.32.16 #2
Call Trace:
  [<c0442140>] warn_slowpath_common+0x65/0x7c
  [<c040467f>] ? xen_mc_flush+0x1ec/0x1f4
  [<c0442164>] warn_slowpath_null+0xd/0x10
  [<c040467f>] xen_mc_flush+0x1ec/0x1f4
  [<c040530a>] xen_mc_issue+0x14/0x23
  [<c04063fa>] xen_set_pmd_hyper+0x7c/0xa3
  [<c042b8bb>] set_pmd_pfn+0xb3/0xc4
  [<c0a3c6c9>] initmem_init+0x4db/0x5f6
  [<c0a326e6>] ? __acpi_unmap_table+0x10/0x12
  [<c0a4da08>] ? acpi_table_parse_madt+0x16/0x18
  [<c0a3180e>] ? acpi_parse_lapic_addr_ovr+0x0/0x30
  [<c0a2b0e2>] setup_arch+0x826/0xa64
  [<c0442d04>] ? vprintk+0x35e/0x3a5
  [<c0406b5c>] ? xen_restore_fl+0x2f/0x58
  [<c0a255f9>] start_kernel+0xbc/0x38d
  [<c0a250af>] i386_start_kernel+0x9e/0xa5
  [<c0a28571>] xen_start_kernel+0x5b7/0x5bf
  [<c04090a9>] ? signal_fault+0x45/0x92
---[ end trace a7919e7f17c0a726 ]---
1 multicall(s) failed: cpu 0
Pid: 0, comm: swapper Tainted: G        W  2.6.32.16 #2
Call Trace:
  [<c07b4cdf>] ? printk+0xf/0x18
  [<c04045ca>] xen_mc_flush+0x137/0x1f4
  [<c040530a>] xen_mc_issue+0x14/0x23
  [<c04063fa>] xen_set_pmd_hyper+0x7c/0xa3
  [<c042b8bb>] set_pmd_pfn+0xb3/0xc4
  [<c0a3c6c9>] initmem_init+0x4db/0x5f6
  [<c0a326e6>] ? __acpi_unmap_table+0x10/0x12
  [<c0a4da08>] ? acpi_table_parse_madt+0x16/0x18
  [<c0a3180e>] ? acpi_parse_lapic_addr_ovr+0x0/0x30
  [<c0a2b0e2>] setup_arch+0x826/0xa64
  [<c0442d04>] ? vprintk+0x35e/0x3a5
  [<c0406b5c>] ? xen_restore_fl+0x2f/0x58
  [<c0a255f9>] start_kernel+0xbc/0x38d
  [<c0a250af>] i386_start_kernel+0x9e/0xa5
  [<c0a28571>] xen_start_kernel+0x5b7/0x5bf
  [<c04090a9>] ? signal_fault+0x45/0x92
------------[ cut here ]------------
WARNING: at arch/x86/xen/multicalls.c:182 xen_mc_flush+0x1ec/0x1f4()
Hardware name: OptiPlex GX620
Modules linked in:
Pid: 0, comm: swapper Tainted: G        W  2.6.32.16 #2
Call Trace:
  [<c0442140>] warn_slowpath_common+0x65/0x7c
  [<c040467f>] ? xen_mc_flush+0x1ec/0x1f4
  [<c0442164>] warn_slowpath_null+0xd/0x10
  [<c040467f>] xen_mc_flush+0x1ec/0x1f4
  [<c040530a>] xen_mc_issue+0x14/0x23
  [<c04063fa>] xen_set_pmd_hyper+0x7c/0xa3
  [<c042b8bb>] set_pmd_pfn+0xb3/0xc4
  [<c0a3c6c9>] initmem_init+0x4db/0x5f6
  [<c0a326e6>] ? __acpi_unmap_table+0x10/0x12
  [<c0a4da08>] ? acpi_table_parse_madt+0x16/0x18
  [<c0a3180e>] ? acpi_parse_lapic_addr_ovr+0x0/0x30
  [<c0a2b0e2>] setup_arch+0x826/0xa64
  [<c0442d04>] ? vprintk+0x35e/0x3a5
  [<c0406b5c>] ? xen_restore_fl+0x2f/0x58
  [<c0a255f9>] start_kernel+0xbc/0x38d
  [<c0a250af>] i386_start_kernel+0x9e/0xa5
  [<c0a28571>] xen_start_kernel+0x5b7/0x5bf
  [<c04090a9>] ? signal_fault+0x45/0x92
---[ end trace a7919e7f17c0a727 ]---
1 multicall(s) failed: cpu 0
Pid: 0, comm: swapper Tainted: G        W  2.6.32.16 #2
Call Trace:
  [<c07b4cdf>] ? printk+0xf/0x18
  [<c04045ca>] xen_mc_flush+0x137/0x1f4
  [<c040530a>] xen_mc_issue+0x14/0x23
  [<c04063fa>] xen_set_pmd_hyper+0x7c/0xa3
  [<c042b8bb>] set_pmd_pfn+0xb3/0xc4
  [<c0a3c6c9>] initmem_init+0x4db/0x5f6
  [<c0a326e6>] ? __acpi_unmap_table+0x10/0x12
  [<c0a4da08>] ? acpi_table_parse_madt+0x16/0x18
  [<c0a3180e>] ? acpi_parse_lapic_addr_ovr+0x0/0x30
  [<c0a2b0e2>] setup_arch+0x826/0xa64
  [<c0442d04>] ? vprintk+0x35e/0x3a5
  [<c0406b5c>] ? xen_restore_fl+0x2f/0x58
  [<c0a255f9>] start_kernel+0xbc/0x38d
  [<c0a250af>] i386_start_kernel+0x9e/0xa5
  [<c0a28571>] xen_start_kernel+0x5b7/0x5bf
  [<c04090a9>] ? signal_fault+0x45/0x92
------------[ cut here ]------------
WARNING: at arch/x86/xen/multicalls.c:182 xen_mc_flush+0x1ec/0x1f4()
Hardware name: OptiPlex GX620
Modules linked in:
Pid: 0, comm: swapper Tainted: G        W  2.6.32.16 #2
Call Trace:
  [<c0442140>] warn_slowpath_common+0x65/0x7c
  [<c040467f>] ? xen_mc_flush+0x1ec/0x1f4
  [<c0442164>] warn_slowpath_null+0xd/0x10
  [<c040467f>] xen_mc_flush+0x1ec/0x1f4
  [<c040530a>] xen_mc_issue+0x14/0x23
  [<c04063fa>] xen_set_pmd_hyper+0x7c/0xa3
  [<c042b8bb>] set_pmd_pfn+0xb3/0xc4
  [<c0a3c6c9>] initmem_init+0x4db/0x5f6
  [<c0a326e6>] ? __acpi_unmap_table+0x10/0x12
  [<c0a4da08>] ? acpi_table_parse_madt+0x16/0x18
  [<c0a3180e>] ? acpi_parse_lapic_addr_ovr+0x0/0x30
  [<c0a2b0e2>] setup_arch+0x826/0xa64
  [<c0442d04>] ? vprintk+0x35e/0x3a5
  [<c0406b5c>] ? xen_restore_fl+0x2f/0x58
  [<c0a255f9>] start_kernel+0xbc/0x38d
  [<c0a250af>] i386_start_kernel+0x9e/0xa5
  [<c0a28571>] xen_start_kernel+0x5b7/0x5bf
  [<c04090a9>] ? signal_fault+0x45/0x92
---[ end trace a7919e7f17c0a728 ]---
1 multicall(s) failed: cpu 0
Pid: 0, comm: swapper Tainted: G        W  2.6.32.16 #2
Call Trace:
  [<c07b4cdf>] ? printk+0xf/0x18
  [<c04045ca>] xen_mc_flush+0x137/0x1f4
  [<c040530a>] xen_mc_issue+0x14/0x23
  [<c04063fa>] xen_set_pmd_hyper+0x7c/0xa3
  [<c042b8bb>] set_pmd_pfn+0xb3/0xc4
  [<c0a3c6c9>] initmem_init+0x4db/0x5f6
  [<c0a326e6>] ? __acpi_unmap_table+0x10/0x12
  [<c0a4da08>] ? acpi_table_parse_madt+0x16/0x18
  [<c0a3180e>] ? acpi_parse_lapic_addr_ovr+0x0/0x30
  [<c0a2b0e2>] setup_arch+0x826/0xa64
  [<c0442d04>] ? vprintk+0x35e/0x3a5
  [<c0406b5c>] ? xen_restore_fl+0x2f/0x58
  [<c0a255f9>] start_kernel+0xbc/0x38d
  [<c0a250af>] i386_start_kernel+0x9e/0xa5
  [<c0a28571>] xen_start_kernel+0x5b7/0x5bf
  [<c04090a9>] ? signal_fault+0x45/0x92
------------[ cut here ]------------
WARNING: at arch/x86/xen/multicalls.c:182 xen_mc_flush+0x1ec/0x1f4()
Hardware name: OptiPlex GX620
Modules linked in:
Pid: 0, comm: swapper Tainted: G        W  2.6.32.16 #2
Call Trace:
  [<c0442140>] warn_slowpath_common+0x65/0x7c
  [<c040467f>] ? xen_mc_flush+0x1ec/0x1f4
  [<c0442164>] warn_slowpath_null+0xd/0x10
  [<c040467f>] xen_mc_flush+0x1ec/0x1f4
  [<c040530a>] xen_mc_issue+0x14/0x23
  [<c04063fa>] xen_set_pmd_hyper+0x7c/0xa3
  [<c042b8bb>] set_pmd_pfn+0xb3/0xc4
  [<c0a3c6c9>] initmem_init+0x4db/0x5f6
  [<c0a326e6>] ? __acpi_unmap_table+0x10/0x12
  [<c0a4da08>] ? acpi_table_parse_madt+0x16/0x18
  [<c0a3180e>] ? acpi_parse_lapic_addr_ovr+0x0/0x30
  [<c0a2b0e2>] setup_arch+0x826/0xa64
  [<c0442d04>] ? vprintk+0x35e/0x3a5
  [<c0406b5c>] ? xen_restore_fl+0x2f/0x58
  [<c0a255f9>] start_kernel+0xbc/0x38d
  [<c0a250af>] i386_start_kernel+0x9e/0xa5
  [<c0a28571>] xen_start_kernel+0x5b7/0x5bf
  [<c04090a9>] ? signal_fault+0x45/0x92
---[ end trace a7919e7f17c0a729 ]---
   mapped low ram: 0 - 2cdfe000
   low ram: 0 - 2cdfe000
   node 0 low ram: 00000000 - 2cdfe000
   node 0 bootmap 00007000 - 0000c9c0
(12 early reservations) ==>  bootmem [0000000000 - 002cdfe000]
   #0 [0000000000 - 0000001000]   BIOS data page ==>  [0000000000 - 0000001000]
   #1 [00023ba000 - 00023d3000]   XEN PAGETABLES ==>  [00023ba000 - 00023d3000]
   #2 [0000001000 - 0000002000]    EX TRAMPOLINE ==>  [0000001000 - 0000002000]
   #3 [0000006000 - 0000007000]       TRAMPOLINE ==>  [0000006000 - 0000007000]
   #4 [0000400000 - 0000b83dd8]    TEXT DATA BSS ==>  [0000400000 - 0000b83dd8]
   #5 [0000ca9000 - 00022b9000]          RAMDISK ==>  [0000ca9000 - 00022b9000]
   #6 [00022b9000 - 00023ba000]   XEN START INFO ==>  [00022b9000 - 00023ba000]
   #7 [0000b84000 - 0000b841cc]              BRK ==>  [0000b84000 - 0000b841cc]
   #8 [0000100000 - 0000252000]          PGTABLE ==>  [0000100000 - 0000252000]
   #9 [003f600000 - 0040000000]          KVA RAM
   #10 [002c200000 - 002cc00000]           KVA PG ==>  [002c200000 - 002cc00000]
   #11 [0000007000 - 000000d000]          BOOTMAP ==>  [0000007000 - 000000d000]
found SMP MP-table at [c00fe710] fe710
Zone PFN ranges:
   DMA      0x00000000 ->  0x00001000
   Normal   0x00001000 ->  0x0002cdfe
   HighMem  0x0002cdfe ->  0x00040000
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
     0: 0x00000000 ->  0x000000a0
     0: 0x00000100 ->  0x0003f600
Using APIC driver default
ACPI: PM-Timer IO Port: 0x808
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x05] disabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] disabled)
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 0, address 0xfec00000, GSI 0-0
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ERROR: Unable to locate IOAPIC for GSI 2
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ERROR: Unable to locate IOAPIC for GSI 9
Using ACPI (MADT) for SMP configuration information
ACPI: HPET id: 0x8086a201 base: 0xfed00000
SMP: Allowing 2 CPUs, 0 hotplug CPUs
PM: Registered nosave memory: 00000000000a0000 - 0000000000100000
Allocating PCI resources starting at 80000000 (gap: 80000000:70000000)
Booting paravirtualized kernel on Xen
Xen version: 4.0.1-rc5-pre (preserve-AD) (dom0)
NR_CPUS:32 nr_cpumask_bits:32 nr_cpu_ids:2 nr_node_ids:8
PERCPU: Embedded 15 pages/cpu @c23db000 s38264 r0 d23176 u65536
pcpu-alloc: s38264 r0 d23176 u65536 alloc=16*4096
pcpu-alloc: [0] 0 [0] 1
Xen: using vcpu_info placement
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 257459
Policy zone: HighMem
Kernel command line: ro root=UUID=4f54a506-cd89-4abd-810b-c2a326982413
console=hvc0 earlyprintk=xen nomodeset
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
allocated 5191680 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
DMA: Placing 64MB software IO TLB between c29b3000 - c69b3000
DMA: software IO TLB at phys 0x29b3000 - 0x69b3000
xen_swiotlb_fixup: buf=c29b3000 size=67108864
xen_swiotlb_fixup: buf=c6a13000 size=32768
Initializing HighMem for node 0 (0002cdfe:0003f600)
Memory: 922944k/1048576k available (3819k kernel code, 115004k
reserved, 2471k data, 484k init, 303112k highmem)
virtual kernel memory layout:
     fixmap  : 0xf52d5000 - 0xf57ff000   (5288 kB)
     pkmap   : 0xf4e00000 - 0xf5000000   (2048 kB)
     vmalloc : 0xed5fe000 - 0xf4dfe000   ( 120 MB)
     lowmem  : 0xc0000000 - 0xecdfe000   ( 717 MB)
       .init : 0xc0a25000 - 0xc0a9e000   ( 484 kB)
       .data : 0xc07baea2 - 0xc0a24ea0   (2471 kB)
       .text : 0xc0400000 - 0xc07baea2   (3819 kB)
SLUB: Genslabs=14, HWalign=128, Order=0-3, MinObjects=0, CPUs=2, Nodes=8
Hierarchical RCU implementation.
NR_IRQS:1536
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)
xen: sci override: source_irq=9 global_irq=9 trigger=c polarity=1
xen_allocate_pirq: returning irq 9 for gsi 9
xen: acpi sci 9
Console: colour VGA+ 80x25
console [hvc0] enabled, bootconsole disabled

console [hvc0] enabled, bootconsole disabled
installing Xen timer for CPU 0

Detected 3391.772 MHz processor.

Calibrating delay loop (skipped), value calculated using timer
frequency.. 6783.54 BogoMIPS (lpj=3391772)

Security Framework initialized

SELinux:  Initializing.

Mount-cache hash table entries: 512

Initializing cgroup subsys debug

Initializing cgroup subsys ns

Initializing cgroup subsys cpuacct

Initializing cgroup subsys memory

Initializing cgroup subsys devices

Initializing cgroup subsys freezer

Initializing cgroup subsys net_cls

CPU: Trace cache: 12K uops, L1 D cache: 16K

CPU: L2 cache: 2048K

CPU: Physical Processor ID: 0

CPU: Processor Core ID: 0

mce: CPU supports 4 MCE banks

Performance Events: no PMU driver, software events only.

SMP alternatives: switching to UP code

ACPI: Core revision 20090903

installing Xen timer for CPU 1

SMP alternatives: switching to SMP code

Initializing CPU#1

CPU: Trace cache: 12K uops, L1 D cache: 16K

CPU: L2 cache: 2048K

CPU: Physical Processor ID: 0

CPU: Processor Core ID: 1

Brought up 2 CPUs

BUG: unable to handle kernel NULL pointer dereference at (null)

IP: [<c0436583>] cpu_attach_domain+0x54/0x159

*pdpt = 0000000000aa4001 *pde = 0000000000000000

Oops: 0000 [#1] PREEMPT SMP

last sysfs file:

Modules linked in:



Pid: 1, comm: swapper Tainted: G        W  (2.6.32.16 #2) OptiPlex
GX620

EIP: 0061:[<c0436583>] EFLAGS: 00010206 CPU: 0

EIP is at cpu_attach_domain+0x54/0x159

EAX: 0000042f EBX: c23df358 ECX: 00000000 EDX: c23df548

ESI: c23e4000 EDI: c23df640 EBP: ebc4ff50 ESP: ebc4ff2c

  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: e021

Process swapper (pid: 1, ti=ebc4e000 task=ebc50000 task.ti=ebc4e000)

Stack:

  c23df548 ebc98000 0000042f 00000000 0000102f ebc18060 ebc18060 00000000

<0>  c0a98358 ebc4ffac c043a021 00000000 c23ef728 c0a98640 c0a9872c 00000020

<0>  00000000 00000001 ebc4ffa4 00000000 00000008 00000000 00000002 00000002

Call Trace:

  [<c043a021>] ? __build_sched_domains+0x637/0x689

  [<c0a3d168>] ? sched_init_smp+0xa7/0x148

  [<c0a252e8>] ? kernel_init+0xd3/0x164

  [<c0a25215>] ? kernel_init+0x0/0x164

  [<c040aaa7>] ? kernel_thread_helper+0x7/0x10

Code: 38 89 45 ec 8b 47 38 89 45 e4 8b 87 e8 00 00 00 89 55 dc e8 18
15 19 00 8b 55 dc 48 74 4a 8b 47 38 a9 8f 02 00 00 74 0b 8b 4f 08<3b>
09 0f 85 ca 00 00 00 a8 20 0f 85 c2 00 00 00 eb 2b 8b 4f 08

EIP: [<c0436583>] cpu_attach_domain+0x54/0x159 SS:ESP e021:ebc4ff2c

CR2: 0000000000000000

---[ end trace a7919e7f17c0a72a ]---

Kernel panic - not syncing: Attempted to kill init!

Pid: 1, comm: swapper Tainted: G      D W  2.6.32.16 #2

Call Trace:

  [<c07b4cdf>] ? printk+0xf/0x18

  [<c07b4c27>] panic+0x43/0xec

  [<c0445765>] do_exit+0x5c/0x5dd

  [<c07b4cdf>] ? printk+0xf/0x18

  [<c07b798e>] oops_end+0x99/0xa1

  [<c042793b>] no_context+0x136/0x140

  [<c0427a2c>] __bad_area_nosemaphore+0xe7/0xef

  [<c07b8a3f>] ? do_page_fault+0x0/0x2a8

  [<c0427a41>] bad_area_nosemaphore+0xd/0x10

  [<c07b8b86>] do_page_fault+0x147/0x2a8

  [<c07b8a3f>] ? do_page_fault+0x0/0x2a8

  [<c07b705b>] error_code+0x73/0x78

  [<c043007b>] ? ftrace_define_fields_sched_switch+0x10/0xfc

  [<c0436583>] ? cpu_attach_domain+0x54/0x159

  [<c043a021>] __build_sched_domains+0x637/0x689

  [<c0a3d168>] sched_init_smp+0xa7/0x148

  [<c0a252e8>] kernel_init+0xd3/0x164

  [<c0a25215>] ? kernel_init+0x0/0x164

  [<c040aaa7>] kernel_thread_helper+0x7/0x10



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