RE: Fatal page fault on xen-unstable tip (vt-d related maybe?)

["Dan Magenheimer" <dan.magenheimer@oracle.com>]

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It's been suggested off-list that the symptom may
indicate I just have old pre-production firmware.

> -----Original Message-----
> From: Keir Fraser [mailto:keir.fraser@eu.citrix.com]
> Sent: Thursday, June 12, 2008 1:29 AM
> To: Yang, Xiaowei; dan.magenheimer@oracle.com
> Cc: xen-devel
> Subject: Re: [Xen-devel] Fatal page fault on xen-unstable tip (vt-d
> related maybe?)
> 
> 
> If this is a common issue (DMA outside RAM and RMRR ranges) 
> then we may have
> to turn off VT-d for PV guests, including dom0, by default.
> 
>  -- Keir
> 
> On 12/6/08 04:28, "Yang, Xiaowei" <xiaowei.yang@intel.com> wrote:
> 
> > Some info got from you log:
> > Strange to see there is VTd write fault from a high 
> address f1bffb000.
> > It's not covered by e820. Could it be in one MMIO range?
> > 
> > I can't figure out why a page fault from 7b9c51e0 (not in Xen HV),
> > while on the top of the stack is 
> iommu_enable_translation(). It seems
> > output of print_vtd_entries() is not finished. And as we 
> met Page fault
> > when executing it before, could it be the cause??
> > 
> > P.S. you log is really messed up. To make life easier, 
> sync_console Xen
> > option is recommended:)
> > 
> > 
> > Thanks,
> > Xiaowei
> > 
> > 
> >> -----Original Message-----
> >> From: xen-devel-bounces@lists.xensource.com
> >> [mailto:xen-devel-bounces@lists.xensource.com]On Behalf Of Dan
> >> Magenheimer
> >> Sent: Wednesday, June 11, 2008 3:26 PM
> >> To: Xen-Devel (E-mail)
> >> Subject: [Xen-devel] Fatal page fault on xen-unstable tip
> >> (vt-d related
> >> maybe?)
> >> 
> >> 
> >> 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
> >> 
> >> =============
> >> 
> >> 
> >>  \ \/ /___ _ __   |___ / |___ /    _   _ _ __  ___| |_ __ _|
> >> |__ | | ___
> >> 
> >>   \  // _ \ '_ \    |_ \   |_ \ __| | | | '_ \/ __| __/ _` |
> >> '_ \| |/ _ \
> >> 
> >>   /  \  __/ | | |  ___) | ___) |__| |_| | | | \__ \ || (_| |
> >> |_) | |  __/
> >> 
> >>  /_/\_\___|_| |_| |____(_)____/    \__,_|_|
> >> |_|___/\__\__,_|_.__/|_|\___|
> >> 
> >> 
> >> (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/0x2a
> > 
> > 
> >> (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=000]
>> (XEN) Faulting linear address: 7b9c51e0
> >> (XEN) ****************************************
> >> (XEN)
> >> (XEN) Manual reset required ('noreboot' specified)
> >> 
> > 
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xensource.com
> > http://lists.xensource.com/xen-devel
> > 
> > 
> > 
> > 
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xensource.com
> > http://lists.xensource.com/xen-devel
> 
> 
> 
> 

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