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Re: [Xen-devel] crash in is_xen_swiotlb_buffer



On Tue, Mar 13, 2012 at 05:32:39PM +0000, Goncalo Gomes wrote:
> On Tue, 13 Mar 2012, Goncalo Gomes wrote:
> 
> > On Tue, 13 Mar 2012, Konrad Rzeszutek Wilk wrote:
> > 
> > > On Tue, Mar 13, 2012 at 02:26:17PM +0000, Goncalo Gomes wrote:
> > > > On Tue, 13 Mar 2012, Konrad Rzeszutek Wilk wrote:
> > > > 
> > > > > 
> > > > > On Mar 12, 2012 12:28 PM, "Goncalo Gomes" 
> > > > > <Goncalo.Gomes@xxxxxxxxxxxxx<mailto:Goncalo.Gomes@xxxxxxxxxxxxx>> 
> > > > > wrote:
> > > > > >
> > > > > > I've compiled unstable c/s: 5d20d2f6ffed and linux 3.2.9 but I've 
> > > > > > been
> > > > > 
> > > > > Do you get similar issues with Xen 4.1?
> > > > 
> > > > Can't say I tried it, but I can give it a spin. Any specific tag?
> > > 
> > > The latest.
> > 
> > Missed that, I'll try with 4.1.2.
> 
> Same behaviour as in 4.1.0-rc7-pre (tag 4.1.0-branch) and unstable.
> 
> Boot log for 4.1.2 attached.
> 
> Goncalo
>  
> > Goncalo
> > 
> > 
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxx
> > http://lists.xen.org/xen-devel

> Script started on Tue 13 Mar 2012 17:21:22 GMT
> goncalog@eire:~$ xenuse -t dt29
> [Enter `^Ec?' for help]
> 
> PXELINUX 3.70 2008-06-30  Copyright (C) 1994-2008 H. Peter Anvin
> boot: 
> Booting from local disk...
> [?25lGNU GRUB  version 1.98+20100804-14+squeeze1
> 
> 
+--------------------------------------------------------------------------+||||||||||||||||||||||+--------------------------------------------------------------------------+
> 
      Use the ^ and v keys to select which entry is highlighted.      
> 
      Press enter to boot the selected OS, 'e' to edit the commands      
> 
      before booting or 'c' for a command-line.      
> 
       Debian GNU/Linux, with Linux 3.2.9-x86                  
                  Debian GNU/Linux, with Linux 3.2.9-x86 
(recovery mode)                    Debian GNU/Linux, with 
Linux 3.0.23-x86                                   Debian 
GNU/Linux, with Linux 3.0.23-x86 (recovery mode)                   
Debian GNU/Linux, with Linux 2.6.32.49-x86                   
             Debian GNU/Linux, with Linux 2.6.32.49-x86 
(recovery mode)                Debian GNU/Linux, with 
Linux 2.6.32-5-686-bigmem                          
Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem (recovery 
mode)          Xen 4 Linux 3.2.9 x86                    
                                                        
                                                        
                                                                     
    The highlighted entry will be executed 
automatically in 300s.                  The highlighted entry 
will be executed automatically in 299s.                  The 
highlighted entry will be executed automatically in 298s.               
   The highlighted entry will be executed automatically in 297s.  
                The highlighted entry will be executed 
automatically in 296s.                  The highlighted entry 
will be executed automatically in 295s.                  The 
highlighted entry will be executed automatically in 294s.               
   The highlighted entry will be executed automatically in 293s.  
                The highlighted entry will be executed 
automatically in 292s.                  The highlighted entry 
will be executed automatically in 291s.                  The 
highlighted entry will be executed automatically in 290s.               
                                                                  
             Debian GNU/Linux, with Linux 3.2.9-x86             
                       Debian GNU/Linux, with Linux 
3.2.9-x86 (recovery mode)                    Debian 
GNU/Linux, with Linux 3.2.9-x86 (recovery mode)                    
Debian GNU/Linux, with Linux 3.0.23-x86                     
              Debian GNU/Linux, with Linux 3.0.23-x86     
                              Debian GNU/Linux, with 
Linux 3.0.23-x86 (recovery mode)                   Debian 
GNU/Linux, with Linux 3.0.23-x86 (recovery mode)                   
Debian GNU/Linux, with Linux 2.6.32.49-x86                  
              Debian GNU/Linux, with Linux 2.6.32.49-x86  
                              Debian GNU/Linux, with 
Linux 2.6.32.49-x86 (recovery mode)                
Debian GNU/Linux, with Linux 2.6.32.49-x86 (recovery mode) 
               Debian GNU/Linux, with Linux 
2.6.32-5-686-bigmem                          Debian 
GNU/Linux, with Linux 2.6.32-5-686-bigmem                          
Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem 
(recovery mode)          Debian GNU/Linux, with Linux 
2.6.32-5-686-bigmem (recovery mode)          Xen 4 
Linux 3.2.9 x86                                                     
Xen 4 Linux 3.2.9 x86                                      
               Xen 4 Linux 3.2.9 x86                   
                                  Xen 4 Linux 3.2.9 x86 
                                                    
Xen 4 Linux 3.2.9 x86                                     
                Xen 4 Linux 3.2.9 x86                   
                                  Xen 4 Linux 3.2.9 
x86                                                     
Xen 4 Linux 3.2.9 x86                                      
               Xen 4 Linux 3.2.9 x86                   
                                  Xen 4 Linux 3.2.9 x86 
                                                    
Xen 4 Linux 3.2.9 x86                                     
                Xen 4 Linux 3.2.9 x86                   
                                  Xen 4 Linux 3.2.9 
x86                                                     
Xen 4 Linux 3.2.9 x86                                      
               Xen 4 Linux 3.2.9 x86                   
                                  Xen 4 Linux 3.2.9 x86 
                                                    
Xen 4 Linux 3.2.9 x86                                     
                Xen 4 Linux 3.2.9 x86                   
                                  Xen 4 Linux 3.2.9 
x86                                                     
Xen 4 Linux 3.2.9 x86                                      
               Xen 4 Linux 3.2.9 x86                   
                                  [?25hGNU 
GRUB  version 1.98+20100804-14+squeeze1
> 
> 
+--------------------------------------------------------------------------+||||||||||||||||||||||+--------------------------------------------------------------------------+
> 
      Minimum Emacs-like screen editing is supported. TAB lists      
> 
      completions. Press Ctrl-x to boot, Ctrl-c for a      
> 
      command-line or ESC to discard edits and return to the      
> 
      GRUB menu.insmod part_msdos                                         
              insmod ext2                                                 
            set root='(/dev/sda,msdos1)'                                  
          search --no-floppy --fs-uuid --set 
c2941c7c-fe82-4b89-9baa-7a13f09ec335\                                     
                                   multiboot /boot/xen-4.1.2.gz 
placeholder dom0_mem=1024M com1=115200,8n1\ console=com1,vga loglvl=all 
guest_loglvl=all                           module  
/boot/vmlinuz-3.2.9-x86 placeholder root=/dev/sda1 ro console=t\ty0 
console=hvc0 earlyprintk=xen                                        
module  /boot/initrd.img-3.2.9-x86                                      
                                                                        
  [?25h[?25lGNU GRUB  version 
1.98+20100804-14+squeeze1
> 
> 
+--------------------------------------------------------------------------+||||||||||||||||||||||+--------------------------------------------------------------------------+
> 
      Use the ^ and v keys to select which entry is highlighted.      
> 
      Press enter to boot the selected OS, 'e' to edit the commands      
> 
      before booting or 'c' for a command-line.      
> 
       Debian GNU/Linux, with Linux 3.2.9-x86                   
                 Debian GNU/Linux, with Linux 3.2.9-x86 
(recovery mode)                    Debian GNU/Linux, with 
Linux 3.0.23-x86                                   Debian 
GNU/Linux, with Linux 3.0.23-x86 (recovery mode)                   
Debian GNU/Linux, with Linux 2.6.32.49-x86                   
             Debian GNU/Linux, with Linux 2.6.32.49-x86 
(recovery mode)                Debian GNU/Linux, with 
Linux 2.6.32-5-686-bigmem                          
Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem (recovery 
mode)          Xen 4 Linux 3.2.9 x86                   
                                                        
                                                        
                                                                      
                                              
                                  [?25hGNU GRUB  
version 1.98+20100804-14+squeeze1
> 
> 
+--------------------------------------------------------------------------+||||||||||||||||||||||+--------------------------------------------------------------------------+
> 
      Minimum Emacs-like screen editing is supported. TAB lists      
> 
      completions. Press Ctrl-x to boot, Ctrl-c for a      
> 
      command-line or ESC to discard edits and return to the      
> 
      GRUB menu.insmod part_msdos                                         
              insmod ext2                                                 
            set root='(/dev/sda,msdos1)'                                  
          search --no-floppy --fs-uuid --set 
c2941c7c-fe82-4b89-9baa-7a13f09ec335\                                     
                                   multiboot /boot/xen-4.1.2.gz 
placeholder dom0_mem=1024M com1=115200,8n1\ console=com1,vga loglvl=all 
guest_loglvl=all                           module  
/boot/vmlinuz-3.2.9-x86 placeholder root=/dev/sda1 ro console=t\ty0 
console=hvc0 earlyprintk=xen                                        
module  /boot/initrd.img-3.2.9-x86                                      
                                                                        
  [?25h[?25lGNU GRUB  version 
1.98+20100804-14+squeeze1
> 
> 
+--------------------------------------------------------------------------+||||||||||||||||||||||+--------------------------------------------------------------------------+
> 
      Use the ^ and v keys to select which entry is highlighted.      
> 
      Press enter to boot the selected OS, 'e' to edit the commands      
> 
      before booting or 'c' for a command-line.      
> 
       Debian GNU/Linux, with Linux 3.2.9-x86                   
                 Debian GNU/Linux, with Linux 3.2.9-x86 
(recovery mode)                    Debian GNU/Linux, with 
Linux 3.0.23-x86                                   Debian 
GNU/Linux, with Linux 3.0.23-x86 (recovery mode)                   
Debian GNU/Linux, with Linux 2.6.32.49-x86                   
             Debian GNU/Linux, with Linux 2.6.32.49-x86 
(recovery mode)                Debian GNU/Linux, with 
Linux 2.6.32-5-686-bigmem                          
Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem (recovery 
mode)          Xen 4 Linux 3.2.9 x86                   
                                                        
                                                        
                                                                      
                                              
                                  [?25h __  __            
_  _    _   ____  
>  \ \/ /___ _ __   | || |  / | |___ \ 
>   \  // _ \ '_ \  | || |_ | |   __) |
>   /  \  __/ | | | |__   _|| |_ / __/ 
>  /_/\_\___|_| |_|    |_|(_)_(_)_____|
>                                      
> (XEN) Xen version 4.1.2 (root@xxxxxxxxxxxxxxxx) (gcc version 4.4.5 (Debian 
> 4.4.5-8) ) Tue Mar 13 17:07:49 UTC 2012
> (XEN) Latest ChangeSet: unavailable
> (XEN) Bootloader: GRUB 1.98+20100804-14+squeeze1
> (XEN) Command line: placeholder dom0_mem=1024M com1=115200,8n1 
> console=com1,vga loglvl=all guest_loglvl=all
> (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 1 MBR signatures
> (XEN)  Found 1 EDD information structures
> (XEN) Xen-e820 RAM map:
> (XEN)  0000000000000000 - 000000000009e000 (usable)
> (XEN)  0000000000100000 - 00000000bf699000 (usable)
> (XEN)  00000000bf699000 - 00000000bf6af000 (reserved)
> (XEN)  00000000bf6af000 - 00000000bf6ce000 (ACPI data)
> (XEN)  00000000bf6ce000 - 00000000c0000000 (reserved)
> (XEN)  00000000e0000000 - 00000000f0000000 (reserved)
> (XEN)  00000000fe000000 - 0000000100000000 (reserved)
> (XEN)  0000000100000000 - 0000000240000000 (usable)
> (XEN) System RAM: 8182MB (8378588kB)
> (XEN) ACPI: RSDP 000F0AA0, 0024 (r2 DELL  )
> (XEN) ACPI: XSDT 000F0BA0, 008C (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: FACP BF6C3BB4, 00F4 (r3 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: DSDT BF6AF000, 3E43 (r1 DELL   PE_SC3          1 INTL 20050624)
> (XEN) ACPI: FACS BF6C6000, 0040
> (XEN) ACPI: APIC BF6C3478, 0152 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: SPCR BF6C35CC, 0050 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: HPET BF6C3620, 0038 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: DMAR BF6C365C, 00A8 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: MCFG BF6C3850, 003C (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: WD__ BF6C3890, 0134 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: SLIC BF6C39C8, 0024 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: ERST BF6B2FC4, 0270 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: HEST BF6B3234, 03A8 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: BERT BF6B2E44, 0030 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: EINJ BF6B2E74, 0150 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: TCPA BF6C3B4C, 0064 (r2 DELL   PE_SC3          1 DELL        1)
> (XEN) No NUMA configuration found
> (XEN) Faking a node at 0000000000000000-0000000240000000
> (XEN) Xen heap: 9MB (9752kB)
> (XEN) Domain heap initialised
> (XEN) found SMP MP-table at 000fe710
> (XEN) DMI 2.6 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[bf6c600c], vec_size[20]
> (XEN) ACPI: Local APIC address 0xfee00000
> (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
> (XEN) Processor #0 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
> (XEN) Processor #2 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x04] enabled)
> (XEN) Processor #4 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x06] enabled)
> (XEN) Processor #6 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x01] enabled)
> (XEN) Processor #1 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x03] enabled)
> (XEN) Processor #3 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x07] lapic_id[0x05] enabled)
> (XEN) Processor #5 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x08] lapic_id[0x07] enabled)
> (XEN) Processor #7 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x09] lapic_id[0x28] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x29] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x2a] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x2b] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x2c] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x2d] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x2e] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x10] lapic_id[0x2f] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x11] lapic_id[0x30] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x12] lapic_id[0x31] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x13] lapic_id[0x32] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x14] lapic_id[0x33] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x15] lapic_id[0x34] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x16] lapic_id[0x35] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x17] lapic_id[0x36] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x18] lapic_id[0x37] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x19] lapic_id[0x38] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1a] lapic_id[0x39] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1b] lapic_id[0x3a] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1c] lapic_id[0x3b] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1d] lapic_id[0x3c] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1e] lapic_id[0x3d] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1f] lapic_id[0x3e] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x20] lapic_id[0x3f] disabled)
> (XEN) ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
> (XEN) ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
> (XEN) IOAPIC[0]: apic_id 0, 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: 0x8086a701 base: 0xfed00000
> (XEN) ERST table is invalid
> (XEN) Using ACPI (MADT) for SMP configuration information
> (XEN) IRQ limits: 24 GSI, 1528 MSI/MSI-X
> (XEN) Using scheduler: SMP Credit Scheduler (credit)
> (XEN) Detected 2660.056 MHz processor.
> (XEN) mce_intel.c:1162: MCA Capability: BCAST 1 SER 0 CMCI 1 firstbank 0 
> extended MCE MSR 0
> (XEN) Intel machine check reporting enabled
> (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 not enabled.
> (XEN) Intel VT-d Shared EPT tables not enabled.
> (XEN) I/O virtualisation enabled
> (XEN)  - Dom0 mode: Relaxed
> (XEN) ENABLING IO-APIC IRQs
> (XEN)  -> Using new ACK method
> (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
> (XEN) Platform timer is 14.318MHz HPET
> 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) EPT supports 2MB super page.
> (XEN) HVM: ASIDs enabled.
> (XEN) HVM: VMX enabled
> (XEN) HVM: Hardware Assisted Paging detected.
> (XEN) Brought up 8 CPUs
> (XEN) HPET: 8 timers in total, 8 timers will be used for broadcast
> (XEN) ACPI sleep modes: S3
> (XEN) mcheck_poll: Machine check polling timer started.
> (XEN) *** LOADING DOMAIN 0 ***
> (XEN) elf_parse_binary: phdr: paddr=0x1000000 memsz=0x639000
> (XEN) elf_parse_binary: phdr: paddr=0x1639000 memsz=0x3b8000
> (XEN) elf_parse_binary: memory: 0x1000000 -> 0x19f1000
> (XEN) elf_xen_parse_note: GUEST_OS = "linux"
> (XEN) elf_xen_parse_note: GUEST_VERSION = "2.6"
> (XEN) elf_xen_parse_note: XEN_VERSION = "xen-3.0"
> (XEN) elf_xen_parse_note: VIRT_BASE = 0xc0000000
> (XEN) elf_xen_parse_note: ENTRY = 0xc1678000
> (XEN) elf_xen_parse_note: HYPERCALL_PAGE = 0xc1002000
> (XEN) elf_xen_parse_note: FEATURES = 
> "!writable_page_tables|pae_pgdir_above_4gb"
> (XEN) elf_xen_parse_note: PAE_MODE = "yes"
> (XEN) elf_xen_parse_note: LOADER = "generic"
> (XEN) elf_xen_parse_note: unknown xen elf note (0xd)
> (XEN) elf_xen_parse_note: SUSPEND_CANCEL = 0x1
> (XEN) elf_xen_parse_note: HV_START_LOW = 0xf5800000
> (XEN) elf_xen_parse_note: PADDR_OFFSET = 0x0
> (XEN) elf_xen_addr_calc_check: addresses:
> (XEN)     virt_base        = 0xc0000000
> (XEN)     elf_paddr_offset = 0x0
> (XEN)     virt_offset      = 0xc0000000
> (XEN)     virt_kstart      = 0xc1000000
> (XEN)     virt_kend        = 0xc19f1000
> (XEN)     virt_entry       = 0xc1678000
> (XEN)     p2m_base         = 0xffffffffffffffff
> (XEN)  Xen  kernel: 32-bit, PAE, lsb
> (XEN)  Dom0 kernel: 32-bit, PAE, lsb, paddr 0x1000000 -> 0x19f1000
> (XEN) PHYSICAL MEMORY ARRANGEMENT:
> (XEN)  Dom0 alloc.:   0000000234000000->0000000236000000 (236045 pages to be 
> allocated)
> (XEN)  Init. ramdisk: 000000023ba0d000->000000023ffffe00
> (XEN) VIRTUAL MEMORY ARRANGEMENT:
> (XEN)  Loaded kernel: c1000000->c19f1000
> (XEN)  Init. ramdisk: c19f1000->c5fe3e00
> (XEN)  Phys-Mach map: c5fe4000->c60e4000
> (XEN)  Start info:    c60e4000->c60e447c
> (XEN)  Page tables:   c60e5000->c611c000
> (XEN)  Boot stack:    c611c000->c611d000
> (XEN)  TOTAL:         c0000000->c6400000
> (XEN)  ENTRY ADDRESS: c1678000
> (XEN) Dom0 has maximum 8 VCPUs
> (XEN) elf_load_binary: phdr 0 at 0xc1000000 -> 0xc1639000
> (XEN) elf_load_binary: phdr 1 at 0xc1639000 -> 0xc16ea000
> (XEN) Scrubbing Free RAM: 
> ......................................................................done.
> (XEN) Xen trace buffers: disabled
> (XEN) Std. Loglevel: All
> (XEN) Guest Loglevel: All
> (XEN) Xen is relinquishing VGA console.
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to 
> Xen)
> (XEN) Freed 172kB init memory.
> mapping kernel into physical memory
> Xen: setup ISA identity maps
> about to get started...
> [    0.000000] Reserving virtual address space above 0xf5800000
> [    0.000000] Initializing cgroup subsys cpuset
> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Linux version 3.2.9 (root@dt29) (gcc version 4.4.5 (Debian 
> 4.4.5-8) ) #9 SMP Mon Mar 12 03:35:38 UTC 2012
> [    0.000000] Freeing  9e-100 pfn range: 98 pages freed
> [    0.000000] Released 98 pages of unused memory
> [    0.000000] Set 264649 page(s) to 1-1 mapping
> [    0.000000] BIOS-provided physical RAM map:
> [    0.000000]  Xen: 0000000000000000 - 000000000009e000 (usable)
> [    0.000000]  Xen: 00000000000a0000 - 0000000000100000 (reserved)
> [    0.000000]  Xen: 0000000000100000 - 00000000bf699000 (usable)
> [    0.000000]  Xen: 00000000bf699000 - 00000000bf6af000 (reserved)
> [    0.000000]  Xen: 00000000bf6af000 - 00000000bf6ce000 (ACPI data)
> [    0.000000]  Xen: 00000000bf6ce000 - 00000000c0000000 (reserved)
> [    0.000000]  Xen: 00000000e0000000 - 00000000f0000000 (reserved)
> [    0.000000]  Xen: 00000000fe000000 - 0000000100000000 (reserved)
> [    0.000000]  Xen: 0000000100000000 - 0000000240000000 (usable)
> [    0.000000] bootconsole [xenboot0] enabled
> [    0.000000] NX (Execute Disable) protection: active
> [    0.000000] DMI 2.6 present.
> [    0.000000] last_pfn = 0x240000 max_arch_pfn = 0x1000000
> [    0.000000] found SMP MP-table at [c00fe710] fe710
> [    0.000000] init_memory_mapping: 0000000000000000-000000002cdfe000
> (XEN) mm.c:907:d0 Error getting mfn 3409e (pfn 55555555) from L1 entry 
> 000000003409e023 for l1e_owner=0, pg_owner=0
> (XEN) mm.c:4962:d0 ptwr_emulate: fixing up invalid PAE PTE 000000003409e023
> (XEN) mm.c:907:d0 Error getting mfn 3409f (pfn 55555555) from L1 entry 
> 000000003409f023 for l1e_owner=0, pg_owner=0
> (XEN) mm.c:4962:d0 ptwr_emulate: fixing up invalid PAE PTE 000000003409f023
> [    0.000000] RAMDISK: 019f1000 - 05fe4000
> [    0.000000] ACPI: RSDP 000f0aa0 00024 (v02 DELL  )
> [    0.000000] ACPI: XSDT 000f0ba0 0008C (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: FACP bf6c3bb4 000F4 (v03 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: DSDT bf6af000 03E43 (v01 DELL   PE_SC3   00000001 INTL 
> 20050624)
> [    0.000000] ACPI: FACS bf6c6000 00040
> [    0.000000] ACPI: APIC bf6c3478 00152 (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: SPCR bf6c35cc 00050 (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: HPET bf6c3620 00038 (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: XMAR bf6c365c 000A8 (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: MCFG bf6c3850 0003C (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: WD__ bf6c3890 00134 (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: SLIC bf6c39c8 00024 (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: ERST bf6b2fc4 00270 (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: HEST bf6b3234 003A8 (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: BERT bf6b2e44 00030 (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: EINJ bf6b2e74 00150 (v01 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] ACPI: TCPA bf6c3b4c 00064 (v02 DELL   PE_SC3   00000001 DELL 
> 00000001)
> [    0.000000] No NUMA configuration found
> [    0.000000] Faking a node at 0000000000000000-0000000240000000
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in 
> hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 
> xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Not tainted 3.2.9 #9
> [    0.000000] Call Trace:
> [    0.000000]  [<c104236b>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042389>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102edbe>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c168b652>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c168aa48>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c168b203>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168b2ac>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c1025290>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168b3ed>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167cef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b840>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c167852c>] ? start_kernel+0x81/0x34d
> [    0.000000]  [<c167a258>] ? xen_start_kernel+0x554/0x55b
> [    0.000000] ---[ end trace 4eaa2a86a8e2da22 ]---

So this is first time I am seeing this. It looks like something in 3.2 -> 3.2.9
is causing this. Can you do one more check - and just try booting the 3.2 virgin
and seeing how it works?

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