On Mon, Mar 14, 2011 at 07:42:31AM -0400, Mike Viau wrote:
>
> Forwarded to Xen Devel from Xen Users.
>
> I know the Xen 4.1 release is imminent, but maybe somewhere here could spot
> the problem with a quick look at the boot messages (
> xen 4 hv kernel panic.txt).
>
> Paul's not using upstream Xen, but Debian packaged Xen 4.
>
> The bare-metal kernel boots fine on Paul's machine, but via the hyper-visor
> it does not.
>
Did he try booting the latest dom0 kernel from xen.git xen/stable-2.6.32.x
branch?
-- Pasi
>
> -M
>
> > On Sun, 13 Mar 2011 22:09:28 -0700 <paul@xxxxxxxxx> wrote:
> >
> > It took me a while to find and install a serial port on this server,
> > but I finally got it. Here's the kernel panic output.
> >
> > Paul
> >
> > > On Tue, Feb 15, 2011 at 16:15, Paul Wozney wrote:
> > >
> > > Hello xen-users,
> > >
> > > I'm a long-time Linux-er and lately I've been sticking to Ubuntu - but
> > > when it came time to build a Xen system I figured what better way than
> > > to use debian and since squeeze was just released with support for Xen
> > > 4.
> > >
> > > Except I'm having some problems. I followed the instructions here:
> > > http://wiki.debian.org/Xen#Installationonsqueeze
> > >
> > > I can boot the regular plain-jane kernel without a problem, but when I
> > > boot the Xen-4 hypervisor kernel I get a crash, and unless I include
> > > the line 'noreboot' it immediately reloads the system. It looks like
> > > the repos are giving me hypervisor 4.0.1.
> > >
> > > I have attached a screenshot (taken with my camera) of the crashed
> > > system, in the hopes that someone will know what this means. This
> > > happens quiet early in the boot process, so I'm not able to switch
> > > windows to access the system otherwise. I did some searching for the
> > > last error message child_rip but I can't seem to find anything quite
> > > like what I'm seeing here.
> > >
> > > I saw a thread on the xen-devel list for 4.1.1 with this exact problem,
> > > and for them with that particular bug they were able to fix it with
> > > this kernel parameter: /boot/xen.gz dom0_mem=1024M. But this didn't
> > > work for me - I just got the same error.
> > >
> > > Thanks
>
> [ 0.000000] Initializing cgroup subsys cpuset
> [ 0.000000] Initializing cgroup subsys cpu
> [ 0.000000] Linux version 2.6.32-5-xen-amd64 (Debian 2.6.32-30)
> (ben@xxxxxxxxxxxxxxx) (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Wed Jan 12
> 05:46:49 UTC 2011
> [ 0.000000] Command line: placeholder root=/dev/mapper/we--ho--srv02-root
> ro console=ttyS0,9600n8 console=tty0
> [ 0.000000] KERNEL supported cpus:
> [ 0.000000] Intel GenuineIntel
> [ 0.000000] AMD AuthenticAMD
> [ 0.000000] Centaur CentaurHauls
> [ 0.000000] released 0 pages of unused memory
> [ 0.000000] BIOS-provided physical RAM map:
> [ 0.000000] Xen: 0000000000000000 - 000000000009b800 (usable)
> [ 0.000000] Xen: 000000000009b800 - 0000000000100000 (reserved)
> [ 0.000000] Xen: 0000000000100000 - 0000000076674000 (usable)
> [ 0.000000] Xen: 000000007fef0000 - 000000007fef3000 (ACPI NVS)
> [ 0.000000] Xen: 000000007fef3000 - 000000007ff00000 (ACPI data)
> [ 0.000000] Xen: 00000000d0000000 - 00000000f0000000 (reserved)
> [ 0.000000] Xen: 00000000fec00000 - 0000000100000000 (reserved)
> [ 0.000000] DMI 2.4 present.
> [ 0.000000] Phoenix BIOS detected: BIOS may corrupt low RAM, working
> around it.
> [ 0.000000] last_pfn = 0x76674 max_arch_pfn = 0x400000000
> [ 0.000000] x86 PAT enabled: cpu 0, old 0x50100070406, new 0x7010600070106
> [ 0.000000] init_memory_mapping: 0000000000000000-0000000076674000
> [ 0.000000] RAMDISK: 016b8000 - 03308a00
> [ 0.000000] ACPI: RSDP 00000000000f80a0 00014 (v00 Nvidia)
> [ 0.000000] ACPI: RSDT 000000007fef3040 0003C (v01 Nvidia NVDAACPI
> 42302E31 NVDA 00000000)
> [ 0.000000] ACPI: FACP 000000007fef30c0 00074 (v01 Nvidia NVDAACPI
> 42302E31 NVDA 00000000)
> [ 0.000000] ACPI: DSDT 000000007fef3180 0541D (v01 NVIDIA NVDAACPI
> 00001000 MSFT 03000000)
> [ 0.000000] ACPI: FACS 000000007fef0000 00040
> [ 0.000000] ACPI: HPET 000000007fef8700 00038 (v01 Nvidia NVDAACPI
> 42302E31 NVDA 00000098)
> [ 0.000000] ACPI: WDRT 000000007fef8780 00047 (v01 Nvidia NVDAACPI
> 42302E31 NVDA 00000000)
> [ 0.000000] ACPI: MCFG 000000007fef8840 0003C (v01 Nvidia NVDAACPI
> 42302E31 NVDA 00000000)
> [ 0.000000] ACPI: APIC 000000007fef8600 00098 (v01 Nvidia NVDAACPI
> 42302E31 NVDA 00000000)
> [ 0.000000] ACPI: OEMN 000000007fef88c0 051A7 (v01 NVIDIA NTUNEOEM
> 20302E31 NVDA 00000000)
> [ 0.000000] No NUMA configuration found
> [ 0.000000] Faking a node at 0000000000000000-0000000076674000
> [ 0.000000] Bootmem setup node 0 0000000000000000-0000000076674000
> [ 0.000000] NODE_DATA [0000000000010000 - 0000000000017fff]
> [ 0.000000] bootmap [0000000000018000 - 0000000000026ccf] pages f
> [ 0.000000] (8 early reservations) ==> bootmem [0000000000 - 0076674000]
> [ 0.000000] #0 [0000000000 - 0000001000] BIOS data page ==>
> [0000000000 - 0000001000]
> [ 0.000000] #1 [00036be000 - 00036dd000] XEN PAGETABLES ==>
> [00036be000 - 00036dd000]
> [ 0.000000] #2 [0000006000 - 0000008000] TRAMPOLINE ==>
> [0000006000 - 0000008000]
> [ 0.000000] #3 [0001000000 - 0001697994] TEXT DATA BSS ==>
> [0001000000 - 0001697994]
> [ 0.000000] #4 [00016b8000 - 0003308a00] RAMDISK ==>
> [00016b8000 - 0003308a00]
> [ 0.000000] #5 [0003309000 - 00036be000] XEN START INFO ==>
> [0003309000 - 00036be000]
> [ 0.000000] #6 [0001698000 - 00016980b2] BRK ==>
> [0001698000 - 00016980b2]
> [ 0.000000] #7 [0000100000 - 0000495000] PGTABLE ==>
> [0000100000 - 0000495000]
> [ 0.000000] found SMP MP-table at [ffff8800000f40e0] f40e0
> [ 0.000000] Zone PFN ranges:
> [ 0.000000] DMA 0x00000010 -> 0x00001000
> [ 0.000000] DMA32 0x00001000 -> 0x00100000
> [ 0.000000] Normal 0x00100000 -> 0x00100000
> [ 0.000000] Movable zone start PFN for each node
> [ 0.000000] early_node_map[2] active PFN ranges
> [ 0.000000] 0: 0x00000010 -> 0x0000009b
> [ 0.000000] 0: 0x00000100 -> 0x00076674
> [ 0.000000] ACPI: PM-Timer IO Port: 0x1008
> [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] disabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] disabled)
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
> [ 0.000000] ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0])
> [ 0.000000] IOAPIC[0]: apic_id 4, version 0, address 0xfec00000, GSI 0-0
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> [ 0.000000] ERROR: Unable to locate IOAPIC for GSI 2
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> [ 0.000000] ERROR: Unable to locate IOAPIC for GSI 9
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 14 global_irq 14 high edge)
> [ 0.000000] ERROR: Unable to locate IOAPIC for GSI 14
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 15 global_irq 15 high edge)
> [ 0.000000] ERROR: Unable to locate IOAPIC for GSI 15
> [ 0.000000] Using ACPI (MADT) for SMP configuration information
> [ 0.000000] ACPI: HPET id: 0x10de8201 base: 0xfeff0000
> [ 0.000000] SMP: Allowing 2 CPUs, 0 hotplug CPUs
> [ 0.000000] PM: Registered nosave memory: 000000000009b000 -
> 000000000009c000
> [ 0.000000] PM: Registered nosave memory: 000000000009c000 -
> 0000000000100000
> [ 0.000000] Allocating PCI resources starting at 7ff00000 (gap:
> 7ff00000:50100000)
> [ 0.000000] Booting paravirtualized kernel on Xen
> [ 0.000000] Xen version: 4.0.1 (preserve-AD) (dom0)
> [ 0.000000] NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:2 nr_node_ids:1
> [ 0.000000] PERCPU: Embedded 30 pages/cpu @ffff880003713000 s90328 r8192
> d24360 u122880
> [ 0.000000] pcpu-alloc: s90328 r8192 d24360 u122880 alloc=30*4096
> [ 0.000000] pcpu-alloc: [0] 0 [0] 1
> [ 0.000000] Xen: using vcpu_info placement
> [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total
> pages: 477312
> [ 0.000000] Policy zone: DMA32
> [ 0.000000] Kernel command line: placeholder
> root=/dev/mapper/we--ho--srv02-root ro console=ttyS0,9600n8 console=tty0
> [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
> [ 0.000000] Initializing CPU#0
> [ 0.000000] DMA: Placing 64MB software IO TLB between ffff88000552e000 -
> ffff88000952e000
> [ 0.000000] DMA: software IO TLB at phys 0x552e000 - 0x952e000
> [ 0.000000] xen_swiotlb_fixup: buf=ffff88000552e000 size=67108864
> [ 0.000000] xen_swiotlb_fixup: buf=ffff88000958e000 size=32768
> [ 0.000000] Memory: 1802668k/1939920k available (3147k kernel code, 468k
> absent, 136784k reserved, 1908k data, 600k init)
> [ 0.000000] SLUB: Genslabs=14, HWalign=64, Order=0-3, MinObjects=0,
> CPUs=2, Nodes=1
> [ 0.000000] Hierarchical RCU implementation.
> [ 0.000000] NR_IRQS:4352 nr_irqs:768
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> [ 0.000000] xen: sci override: source_irq=9 global_irq=9 trigger=c
> polarity=1
> [ 0.000000] xen_allocate_pirq: returning irq 9 for gsi 9
> [ 0.000000] xen: acpi sci 9
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 14 global_irq 14 high edge)
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 15 global_irq 15 high edge)
> [ 0.000000] Console: colour VGA+ 80x25
> [ 0.000000] console [tty0] enabled
> [ 0.000000] console [ttyS0] enabled
> [ 0.000000] installing Xen timer for CPU 0
> [ 0.000000] Detected 3166.710 MHz processor.
> [ 0.004000] Calibrating delay loop (skipped), value calculated using timer
> frequency.. 6333.42 BogoMIPS (lpj=12666840)
> [ 0.004000] Security Framework initialized
> [ 0.004000] SELinux: Disabled at boot.
> [ 0.004182] Dentry cache hash table entries: 262144 (order: 9, 2097152
> bytes)
> [ 0.008082] Inode-cache hash table entries: 131072 (order: 8, 1048576
> bytes)
> [ 0.012000] Mount-cache hash table entries: 256
> [ 0.012123] Initializing cgroup subsys ns
> [ 0.016000] Initializing cgroup subsys cpuacct
> [ 0.016000] Initializing cgroup subsys devices
> [ 0.016000] Initializing cgroup subsys freezer
> [ 0.016000] Initializing cgroup subsys net_cls
> [ 0.016021] CPU: L1 I cache: 32K, L1 D cache: 32K
> [ 0.020000] CPU: L2 cache: 6144K
> [ 0.020005] CPU 0/0x0 -> Node 0
> [ 0.024003] CPU: Physical Processor ID: 0
> [ 0.028001] CPU: Processor Core ID: 0
> [ 0.028005] mce: CPU supports 6 MCE banks
> [ 0.032015] Performance Events: unsupported p6 CPU model 23 no PMU driver,
> software events only.
> [ 0.036001] SMP alternatives: switching to UP code
> [ 0.036001] ACPI: Core revision 20090903
> [ 0.042833] installing Xen timer for CPU 1
> [ 0.044036] SMP alternatives: switching to SMP code
> [ 0.004000] Initializing CPU#1
> [ 0.004000] CPU: L1 I cache: 32K, L1 D cache: 32K
> [ 0.004000] CPU: L2 cache: 6144K
> [ 0.004000] CPU 1/0x0 -> Node 0
> [ 0.004000] CPU: Physical Processor ID: 0
> [ 0.004000] CPU: Processor Core ID: 1
> [ 0.048095] Brought up 2 CPUs
> [ 0.052032] devtmpfs: initialized
> [ 0.058474] Grant table initialized
> [ 0.060001] regulator: core version 0.5
> [ 0.060035] NET: Registered protocol family 16
> [ 0.064080] ACPI: bus type pci registered
> [ 0.068088] PCI: MCFG configuration 0: base e0000000 segment 0 buses 0 -
> 255
> [ 0.072001] PCI: MCFG area at e0000000 reserved in E820
> [ 0.111380] PCI: Using MMCONFIG at e0000000 - efffffff
> [ 0.112001] PCI: Using configuration type 1 for base access
> [ 0.112369] bio: create slab <bio-0> at 0
> [ 0.117284] ERROR: Unable to locate IOAPIC for GSI 9
> [ 0.128360] ACPI: Interpreter enabled
> [ 0.132001] ACPI: (supports S0 S1 S3 S4 S5)
> [ 0.132001] ACPI: Using IOAPIC for interrupt routing
> [ 0.132087] BUG: unable to handle kernel paging request at ffffc90000314000
> [ 0.136001] IP: [<ffffffff811de1ad>]
> acpi_ex_system_memory_space_handler+0x17d/0x1d8
> [ 0.136001] PGD 76226067 PUD 76227067 PMD 76331067 PTE 0
> [ 0.136001] Oops: 0000 [#1] SMP
> [ 0.136001] last sysfs file:
> [ 0.136001] CPU 0
> [ 0.136001] Modules linked in:
> [ 0.136001] Pid: 1, comm: swapper Not tainted 2.6.32-5-xen-amd64 #1
> 132-CK-NF78
> [ 0.136001] RIP: e030:[<ffffffff811de1ad>] [<ffffffff811de1ad>]
> acpi_ex_system_memory_space_handler+0x17d/0x1d8
> [ 0.136001] RSP: e02b:ffff88007635da90 EFLAGS: 00010246
> [ 0.136001] RAX: ffffc90000314000 RBX: 0000000000000020 RCX:
> 0000000000000040
> [ 0.136001] RDX: ffffc90000314000 RSI: 0000000000000001 RDI:
> 80000000fec00273
> [ 0.136001] RBP: 00000000fec00000 R08: 0000000000000000 R09:
> 00000000fec00000
> [ 0.136001] R10: ffffc90000002000 R11: ffffffffffffe000 R12:
> ffff880075887240
> [ 0.136001] R13: 0000000000000020 R14: ffff88007635dbf0 R15:
> 0000000000000000
> [ 0.136001] FS: 0000000000000000(0000) GS:ffff880003713000(0000)
> knlGS:0000000000000000
> [ 0.136001] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 0.136001] CR2: ffffc90000314000 CR3: 0000000001001000 CR4:
> 0000000000002660
> [ 0.136001] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [ 0.136001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
> 0000000000000400
> [ 0.136001] Process swapper (pid: 1, threadinfo ffff88007635c000, task
> ffff880076360000)
> [ 0.136001] Stack:
> [ 0.136001] ffff8800763380d8 ffffffff811de030 ffff880076338360
> ffff88007634ff78
> [ 0.136001] <0> ffff8800763380d8 0000000000000000 ffff88007635dbf0
> ffffffff811d6ff2
> [ 0.136001] <0> 0000000000000020 0000000000000084 ffff880075887240
> ffff880076338360
> [ 0.136001] Call Trace:
> [ 0.136001] [<ffffffff811de030>] ?
> acpi_ex_system_memory_space_handler+0x0/0x1d8
> [ 0.136001] [<ffffffff811d6ff2>] ?
> acpi_ev_address_space_dispatch+0x16c/0x1b8
> [ 0.136001] [<ffffffff811db5ad>] ? acpi_ex_access_region+0x215/0x222
> [ 0.136001] [<ffffffff8100ecf2>] ? check_events+0x12/0x20
> [ 0.136001] [<ffffffff811db6a6>] ? acpi_ex_field_datum_io+0xec/0x17e
> [ 0.136001] [<ffffffff8100ecdf>] ? xen_restore_fl_direct_end+0x0/0x1
> [ 0.136001] [<ffffffff810e7ef5>] ? kmem_cache_alloc+0x8c/0xf0
> [ 0.136001] [<ffffffff811db7c1>] ? acpi_ex_extract_from_field+0x89/0x18b
> [ 0.136001] [<ffffffff811da361>] ?
> acpi_ex_read_data_from_field+0x11d/0x150
> [ 0.136001] [<ffffffff811df029>] ?
> acpi_ex_resolve_node_to_value+0x185/0x218
> [ 0.136001] [<ffffffff8100ecdf>] ? xen_restore_fl_direct_end+0x0/0x1
> [ 0.136001] [<ffffffff810e80c0>] ? kfree+0xc6/0xcb
> [ 0.136001] [<ffffffff811dad8b>] ? acpi_ex_resolve_to_value+0x1fb/0x20c
> [ 0.136001] [<ffffffff811d553d>] ? acpi_ds_evaluate_name_path+0x77/0xfd
> [ 0.136001] [<ffffffff811e430c>] ? acpi_ps_get_next_namepath+0x6f/0x1c9
> [ 0.136001] [<ffffffff811d4219>] ? acpi_ds_exec_end_op+0x91/0x3b8
> [ 0.136001] [<ffffffff811e56e6>] ? acpi_ps_parse_loop+0x7c0/0x946
> [ 0.136001] [<ffffffff811e482c>] ? acpi_ps_parse_aml+0x8f/0x2ca
> [ 0.136001] [<ffffffff811e5eb6>] ? acpi_ps_execute_method+0x1e7/0x2b1
> [ 0.136001] [<ffffffff811e196d>] ? acpi_ns_evaluate+0xe1/0x19e
> [ 0.136001] [<ffffffff811e140a>] ? acpi_evaluate_object+0xf7/0x1ec
> [ 0.136001] [<ffffffff815316bb>] ? acpi_sleep_init+0x17b/0x188
> [ 0.136001] [<ffffffff81531815>] ? acpi_init+0x0/0x2de
> [ 0.136001] [<ffffffff815319e7>] ? acpi_init+0x1d2/0x2de
> [ 0.136001] [<ffffffff8152f69b>] ? fbmem_init+0x0/0x98
> [ 0.136001] [<ffffffff8100a065>] ? do_one_initcall+0x64/0x174
> [ 0.136001] [<ffffffff8150866b>] ? kernel_init+0x14c/0x1a2
> [ 0.136001] [<ffffffff81012baa>] ? child_rip+0xa/0x20
> [ 0.136001] [<ffffffff81011d61>] ? int_ret_from_sys_call+0x7/0x1b
> [ 0.136001] [<ffffffff8101251d>] ? retint_restore_args+0x5/0x6
> [ 0.136001] [<ffffffff81012ba0>] ? child_rip+0x0/0x20
> [ 0.136001] Code: 49 c7 06 00 00 00 00 74 1d 77 08 41 83 fd 08 75 63 eb 0e
> 41 83 fd 20 74 12 41 83 fd 40 75 55 eb 11 0f b6 02 eb 0f 0f b7 02 eb 0a <8b>
> 12 49 89 16 eb 42 48 8b 02 49 89 06 eb 3a 41 83 fd 10 74 1f
> [ 0.136001] RIP [<ffffffff811de1ad>]
> acpi_ex_system_memory_space_handler+0x17d/0x1d8
> [ 0.136001] RSP <ffff88007635da90>
> [ 0.136001] CR2: ffffc90000314000
> [ 0.136001] ---[ end trace 93d72a36b9146f22 ]---
> [ 0.136007] Kernel panic - not syncing: Attempted to kill init!
> [ 0.140001] Pid: 1, comm: swapper Tainted: G D 2.6.32-5-xen-amd64
> #1
> [ 0.140001] Call Trace:
> [ 0.140001] [<ffffffff8130ac81>] ? panic+0x86/0x143
> [ 0.140001] [<ffffffff8100e63d>] ? xen_force_evtchn_callback+0x9/0xa
> [ 0.140001] [<ffffffff8100ecf2>] ? check_events+0x12/0x20
> [ 0.140001] [<ffffffff8100e63d>] ? xen_force_evtchn_callback+0x9/0xa
> [ 0.140001] [<ffffffff8100ecf2>] ? check_events+0x12/0x20
> [ 0.140001] [<ffffffff8100ec99>] ? xen_irq_enable_direct_end+0x0/0x7
> [ 0.140001] [<ffffffff8130caf4>] ? _write_lock_irq+0x7/0x16
> [ 0.140001] [<ffffffff81057fde>] ? exit_ptrace+0xa7/0x126
> [ 0.140001] [<ffffffff8100ecdf>] ? xen_restore_fl_direct_end+0x0/0x1
> [ 0.140001] [<ffffffff81051fa1>] ? do_exit+0x72/0x6c6
> [ 0.140001] [<ffffffff8100ecf2>] ? check_events+0x12/0x20
> [ 0.140001] [<ffffffff8130d9dd>] ? oops_end+0xaf/0xb4
> [ 0.140001] [<ffffffff81033398>] ? no_context+0x1e9/0x1f8
> [ 0.140001] [<ffffffff8100e63d>] ? xen_force_evtchn_callback+0x9/0xa
> [ 0.140001] [<ffffffff8103354d>] ? __bad_area_nosemaphore+0x1a6/0x1ca
> [ 0.140001] [<ffffffff8100e63d>] ? xen_force_evtchn_callback+0x9/0xa
> [ 0.140001] [<ffffffff8100c369>] ? __raw_callee_save_xen_pmd_val+0x11/0x1e
> [ 0.140001] [<ffffffff8100c369>] ? __raw_callee_save_xen_pmd_val+0x11/0x1e
> [ 0.140001] [<ffffffff81032cbb>] ? spurious_fault+0x12c/0x1c4
> [ 0.140001] [<ffffffff8130ed9f>] ? do_page_fault+0x69/0x2fc
> [ 0.140001] [<ffffffff8130ceb5>] ? page_fault+0x25/0x30
> [ 0.140001] [<ffffffff811de1ad>] ?
> acpi_ex_system_memory_space_handler+0x17d/0x1d8
> [ 0.140001] [<ffffffff811de030>] ?
> acpi_ex_system_memory_space_handler+0x0/0x1d8
> [ 0.140001] [<ffffffff811d6ff2>] ?
> acpi_ev_address_space_dispatch+0x16c/0x1b8
> [ 0.140001] [<ffffffff811db5ad>] ? acpi_ex_access_region+0x215/0x222
> [ 0.140001] [<ffffffff8100ecf2>] ? check_events+0x12/0x20
> [ 0.140001] [<ffffffff811db6a6>] ? acpi_ex_field_datum_io+0xec/0x17e
> [ 0.140001] [<ffffffff8100ecdf>] ? xen_restore_fl_direct_end+0x0/0x1
> [ 0.140001] [<ffffffff810e7ef5>] ? kmem_cache_alloc+0x8c/0xf0
> [ 0.140001] [<ffffffff811db7c1>] ? acpi_ex_extract_from_field+0x89/0x18b
> [ 0.140001] [<ffffffff811da361>] ?
> acpi_ex_read_data_from_field+0x11d/0x150
> [ 0.140001] [<ffffffff811df029>] ?
> acpi_ex_resolve_node_to_value+0x185/0x218
> [ 0.140001] [<ffffffff8100ecdf>] ? xen_restore_fl_direct_end+0x0/0x1
> [ 0.140001] [<ffffffff810e80c0>] ? kfree+0xc6/0xcb
> [ 0.140001] [<ffffffff811dad8b>] ? acpi_ex_resolve_to_value+0x1fb/0x20c
> [ 0.140001] [<ffffffff811d553d>] ? acpi_ds_evaluate_name_path+0x77/0xfd
> [ 0.140001] [<ffffffff811e430c>] ? acpi_ps_get_next_namepath+0x6f/0x1c9
> [ 0.140001] [<ffffffff811d4219>] ? acpi_ds_exec_end_op+0x91/0x3b8
> [ 0.140001] [<ffffffff811e56e6>] ? acpi_ps_parse_loop+0x7c0/0x946
> [ 0.140001] [<ffffffff811e482c>] ? acpi_ps_parse_aml+0x8f/0x2ca
> [ 0.140001] [<ffffffff811e5eb6>] ? acpi_ps_execute_method+0x1e7/0x2b1
> [ 0.140001] [<ffffffff811e196d>] ? acpi_ns_evaluate+0xe1/0x19e
> [ 0.140001] [<ffffffff811e140a>] ? acpi_evaluate_object+0xf7/0x1ec
> [ 0.140001] [<ffffffff815316bb>] ? acpi_sleep_init+0x17b/0x188
> [ 0.140001] [<ffffffff81531815>] ? acpi_init+0x0/0x2de
> [ 0.140001] [<ffffffff815319e7>] ? acpi_init+0x1d2/0x2de
> [ 0.140001] [<ffffffff8152f69b>] ? fbmem_init+0x0/0x98
> [ 0.140001] [<ffffffff8100a065>] ? do_one_initcall+0x64/0x174
> [ 0.140001] [<ffffffff8150866b>] ? kernel_init+0x14c/0x1a2
> [ 0.140001] [<ffffffff81012baa>] ? child_rip+0xa/0x20
> [ 0.140001] [<ffffffff81011d61>] ? int_ret_from_sys_call+0x7/0x1b
> [ 0.140001] [<ffffffff8101251d>] ? retint_restore_args+0x5/0x6
> [ 0.140001] [<ffffffff81012ba0>] ? child_rip+0x0/0x20
>
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