[Xen-devel] Fatal page fault on xen-unstable tip (vt-d related maybe?)

["Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx>]

I just updated to a more recent unstable (17826) and got this
fatal page fault on boot.  I backed off to 17772 (which I'm told
was good on another machine) and got the same.  I suspect it
is something peculiar to my hardware -- an Intel "Weybridge"
box -- which I think has VT-d support though I am not currently
using it.

I can't binary search the exact cset right now, but thought
I'd report it.

Dan

=============

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

(XEN) Xen version 3.3-unstable (root@(none)) (gcc version 4.1.1 20070105 (Red 
Ha                                                                              
  
t 4.1.1-52)) Wed Jun 11 14:02:26 MDT 2008                                       
  
(XEN) Latest ChangeSet: Mon Jun 02 16:05:07 2008 +0100 17772:fe60bf79d96f       
                                                                  
(XEN) Command line: com1=115200,8n1 console=com1,vga noreboot                   
                                          
(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 - 000000000009cc00 (usable)                             
                      
(XEN)  000000000009cc00 - 00000000000a0000 (reserved)                           
                          
(XEN)  00000000000e0000 - 0000000000100000 (reserved)                           
                          
(XEN)  0000000000100000 - 000000007d5b0000 (usable)                             
                      
(XEN)  000000007d5b0000 - 000000007d5be000 (ACPI data)                          
                            
(XEN)  000000007d5be000 - 000000                              
(XEN)  000000007d5f0000 - 000000007d600000 
(reserved)nput/input2smp_apic_timer_i                          
(XEN)  00000000fed90000 - 00000000fed94000 (reserved)
Sta   
pnp:    
ACPI: LAPIC (acpi_id[0x04] lapic_id[
(XEN)  00000000fee00000 - 00000000fee01000 (reserved) ]                         
                          
(XEN)  00000000ffa6f000 - 00000000ffa70000 (reserved)    
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_b
(XEN)  00000000ffb00000 - 0000000100000000 (reserved)        
echo    
Q 
usbcore: registered new driver h
(XEN) System RAM: 2005MB (2053424kB)                       
IOAPIC[0]: a
(XEN) Xen heap: 9MB (10012kB)0xfec00000, GSI 0-23         
(XEN) Domain heap initialised: DMA width 32 bits    
uhci_hcd 0000:00:1                  
PCI: I
(XEN) Processor #0 6:15 APIC version 20                                
ACPI: 
(XEN) Processor #1 6:15 APIC version 202 dfl dfl)] on usb-0000:00:1PU:        
(XEN) IOAPIC[0]: apic_id 2, version 32, address 0xf                 
                                
(XEN) Brought up 2 CPUs00 (virtual 0xf8800000)
(XEN) [VT-D]iommu.c:1700: Queued Invalidation hardware not found                
                                                
(XEN) [VT-D]iommu.c:1700: Queued Invalidation hardware not found       
hpet0: 4 64-bit timers, 14318180 Hzs SCSI revision: 05tr
(XEN) [VT-D]iommu.c:1700: Queued Invalidation hardware not foundly          

Using HPET for base-timercated, 0from 1 choice    
(XEN) [VT-D]iommu.c:1700: Queued Invalidation hardware not foundg timer 
specific routine.. 5990.25 BogoMIPS (lpj=2995129)cache h
(XEN) [VT-D]iommu.c:1708: Interrupt Remapping hardware not founding             
                                                
(XEN) [VT-D]iommu.c:1708: Interrupt Remapping hardware not found                
            
usb   
Security Framework v1.0.0 in
(XEN) [VT-D]iommu.c:1708: Interrupt Remapping hardware not found                
                                       
SELinux:
(XEN) [VT-D]iommu.c:1708: Interrupt R                                    
20060707]-0:1.0: 2                  
ACPI:     
Intel mac
(XEN) [VT-D]iommu.c:720: iommu_fault:DMA Write: 0:2.0 addr f1bffb000 REASON 5 
io                                                        
ACPI (excon           

mmu->reg = fff77000reporting enabled o
(XEN) print_vtd_entries: iommu = ff1e7c00 bdf = 0:2:0 gmfn = f1bffb             
                                                      
(XEN)     root_entry = fee17000uction... OK.1 choicetm2 cx16 x
(XEN)     root_entry[0] = 7c400001                    
20060707]    
(XEN)     context = fee54000hing to UP code C2[C2])CI Ho
(XEN)     context[10] = 101_7c9c5001                                    
(XEN) EFLAGS: 00010286   CONTEXT: hypervisor      
ENABLING IO-APIC IRQsx3f8 (irq = 4) i
(XEN) eax: 00000000   ebx: 7b9c51e0   ecx: 0000000a   edx: 00000000 apic1=0 
pin1=2 apic2=-1 pin2=-100:07: ttyS1 at I/O 0x2f8 (irq = 3)
(XEN) esi: 00000003   edi: 0000003c   ebp: fee54000   esp: ff1efce0             
                                        
checking TSC 
(XEN) cr0: 8005003b   cr4: 000026f0   cr3: 00100120   cr2: 7b9c51e0GSI 17 
(level, low) -                                              
(XEN) ds: e010   es: e010   fs: e010   gs: e010   ss: e010   cs: e008CPUss: 
mounted filesy                                  
migration_cos
(XEN)    fee54000 00000001 156db6e3 ff1e7c00 00000005 00f1bffb 00000000 
ff12160b                                    
ACPI: bus type pci registeredE driver Revis

(XEN)    ff1e7c00 00000000 00000010 00f1bffb 00000000 00000002 00000000 
1bffb000S Bug: MCFG area at e0000000 is not E820-reservedde: Assuming 33MHz 
system bus s

(XEN)    0000000f 00000005 fff77000 ff12363a ff23af00 00000001 00000010 
ff1e7c00                                                          
PCI: Not using MMCONF

(XEN)    00000000 80000005 00000001 00000000 00000010 00000200 0000      
                                                          

(XEN)    ff1efde4 510cb033 00000000 fff77000 00000000 ff1e7c00 00000282 
00000000                                            
ACPI: PCI Root Bridge [PCI0] (0000:

(XEN)    00a00000 ff120f38 0000e008 00000282 ff1e7c00 ff198892 00000298 
fff77000evice co                          
PCI: Transparent bridge - 0000:00:1e.0       

(XEN)    00000000 00000000 10000000 ff23bb80 000000e0 00000008 00000100 
ff123b62         
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 *10 12 14 15)orts dete

(XEN)    80ffff00 00000000 00000004 00000000 ffbec718 ff19ab83 00000000 
ff1e4bb4                
md: bitmap version 4.39 jbd.ko mod                             


(XEN)    00000001 00000003 00000000 ff10437c ff1e4080 00000000 00000000 
ff16b9e7                               
Loading libata.ko mod                     







(XEN)    00000003 ff19acd4 00000000 ff1ca144 00000000 00000001 00000510 
ff1c0ac8     
NetLabel: Initializingbus registered, assign                              

(XEN)    00000000 00000000 00000000 00000000 00000000 00000000 fffffffb 
ff1b3070                                                                 
NetLabel:  pro

(XEN)    ff1cb1f0 ff1b2670 00021a00 00000000 00000000 00000000 ff02cc80 
ff021a00                                                                
               

(XEN)    [<ff120f38>] iommu_enable_translation+0xa8/0xc0
(XEN)    [<ff123b62>] intel_iommu_domain_init+0x202/0x290
(XEN)    [<ff12bedf>] arch_domain_create+0x1af/0x2a0
(XEN)    [<ff105357>] evtchn_init+0x27/0x40
(XEN)    [<ff10437c>] domain_create+0x11c/0x250
(XEN)    [<ff16b9e7>] __hvm_register_PIC_save_and_restore+0x37/0x40
(XEN)    [<ff1c0ac8>] __start_xen+0xcd8/0x1380
(XEN)    [<ff1b3070>] e820nr+0x0/0x4
(XEN)    [<ff1b2670>] e820map+0x0/0xa00
(XEN)    [<ff10006c>] __high_start+0x58/0x5a
(XEN)
(XEN) Pagetable walk from 7b9c51e0:
(XEN)  L3[0x001] = 00000000001f5001 55555555
(XEN)  L2[0x1dc] = 0000000000000000 ffffffff
(XEN)
(XEN) ****************************************
(XEN) Panic on CPU 0:
(XEN) FATAL PAGE FAULT
(XEN) [error_code=0000]
(XEN) Faulting linear address: 7b9c51e0
(XEN) ****************************************
(XEN)
(XEN) Manual reset required ('noreboot' specified)

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