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Re: [Xen-devel] Machine hangs when doing pass-through of all the USB devices on a Lenovo T400

  • To: "Cui, Dexuan" <dexuan.cui@xxxxxxxxx>
  • From: Tom Rotenberg <tom.rotenberg@xxxxxxxxx>
  • Date: Thu, 23 Jul 2009 12:31:40 +0300
  • Cc: Simon Horman <horms@xxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Thu, 23 Jul 2009 02:32:16 -0700
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A few things:
1. The log of the 'cat /proc/interrupts' was done before assigning to
pciback (so, you'll be able to see that the interrupt is shared).
2. The "special" thing i do, is to use the multi-function pass-through
code, which was released by Simon Horman. I think, that if i don't try
to assign it as a multi-function device to the guest (meaning, that
each USB fn device, will apear as a single PCI device in the guest) -
it doesn't happen.
That's why i think, there might be a problem with the multi-function
pass-through and the interrupt's stuff. (because there might a few PCI
device, with different functions, which can share the sam interrupt
with dom0).

I think, that there might be a problem with the DMA, as you say, how
can we check this?

About the debug-keys to use when the machine, hangs, can u please tell
me exactly what logs you need, and i'll supply them?

Tom

On Thu, Jul 23, 2009 at 7:10 AM, Cui, Dexuan<dexuan.cui@xxxxxxxxx> wrote:
>>  17:         93          0  Phys-irq-level     uhci_hcd:usb5,ohci1394, HDA 
>> Intel
> The "HDA Intel" here is not SATA, it's Intel's High Definition Audio 
> Controller -- the "HD" here is not Hard Disk.  :-)
>
> Xen can support interrupt sharing. Maybe there is something special with your 
> host that triggers your issue?
>
> Since you assign "all the USB devices" to hvm guest, I think from Dom0's 
> point of view, "all the USB devices" should be owned by pciback, so in your 
> Dom0's /proc/interrupts, we should not see any usb device, but we do... Why?
>
> I have not a T400, but I have a DQ35 host -- I can assign all the USB 
> controllers to Windows guest and don't see any issue; on the DQ35 host, some 
> USB controllers also share irq with the SATA.
>
> In your case, when Dom0 hangs, if you have a serial cable, try the debug-keys 
> z, i, 0, R to get more info.
> From your log, I'm not100% sure interrupt is the cause. Maybe DMA remapping 
> also doesn't work properly somehow.
>
>
> Thanks,
> -- Dexuan
>
> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Tom Rotenberg
> Sent: 2009?7?22? 17:17
> To: Simon Horman; xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-devel] Machine hangs when doing pass-through of all the USB 
> devices on a Lenovo T400
>
> Hi,
>
> First, i must say that i have seen this bug on Simon's Xen 3.4
> multi-function pass-through tree, but i think that this problem isn't
> specific for Xen 3.4, but a major problem which will happen on
> xen-unstable too.
>
> (I'm using Lenovo T400 for my tests)
>
> What i did:
> 1. Used Simon's Xen 3.4 multi-function pass-through tree
> 2. Did pass-through for all the USB devices in the system, using the command:
> xm create /etc/xen/hvm pci='00:1a.*' pci='00:1d.*'
>
> 3. After this, the guest Windows booted ok, but a little bit after
> this, the whole machine got stuck (including dom0), and the errors in
> the UART were:
> [  287.624198] ACPI: EC: missing write data confirmation, don't expect
> it any longer.
> [  293.748242] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 
> frozen
> [  293.748353] ata2.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
> [  293.748354]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
> [  293.748354]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask
> 0x4 (timeout)
> [  293.748658] ata2.00: status: { DRDY }
>
> which looks like the SATA in dom0 is dead...
>
> I suspect that this is because of some problem in the
> interrupts-sharing between the USB device which is in pass-through to
> the HVM, and between the SATA in dom0 (they share the same interrupt).
> I have also made a test, which i pass-through only the '00:1a.*'
> devices, and saw that doesn't happen (probably, because the interrupt
> isn't shared). You can see in the logs that follow that interrupt 17
> is shared between the AHCI (the HD), and one of the USB devices.
>
> Could it be that there is problem when doing interrupt sharing between
> PT device in a domU, and between a device in dom0? Will this happen
> without the multi-function PT too?
>
> Any ideas?
>
> -----------
> Logs:
> ----------
> _______________________________________________
> The interrupts of the machine (as reported by dom0):
> _______________________________________________
> t500-testing:~# cat /proc/interrupts
>           CPU0       CPU1
>  1:          8          0  Phys-irq-level     i8042
>  3:          1          0  Phys-irq-level
>  5:          1          0  Phys-irq-level
>  7:          1          0  Phys-irq-level     parport0
>  8:          0          0  Phys-irq-level     rtc
>  9:        333          0  Phys-irq-level     acpi
>  10:          1          0  Phys-irq-level
>  11:          1          0  Phys-irq-level
>  12:       2332          0  Phys-irq-level     i8042
>  16:       2718          0  Phys-irq-level     uhci_hcd:usb4, ahci, yenta
>  17:         93          0  Phys-irq-level     uhci_hcd:usb5,
> ohci1394, HDA Intel
>  18:         35          0  Phys-irq-level     uhci_hcd:usb6, sdhci:slot0
>  19:          2          0  Phys-irq-level     ehci_hcd:usb8
>  20:        249          0  Phys-irq-level     uhci_hcd:usb1, peth0
>  21:         54          0  Phys-irq-level     uhci_hcd:usb2
>  22:          0          0  Phys-irq-level     uhci_hcd:usb3
>  23:         26          0  Phys-irq-level     ehci_hcd:usb7
> 256:      13683          0  Dynamic-irq-level     timer0
> 257:       1180          0  Dynamic-irq-level     resched0
> 258:         27          0  Dynamic-irq-level     callfunc0
> 259:          0       2027  Dynamic-irq-level     resched1
> 260:          0         64  Dynamic-irq-level     callfunc1
> 261:          0      13348  Dynamic-irq-level     timer1
> 262:         77          0  Dynamic-irq-level     xenbus
> 263:          0          0  Dynamic-irq-level     console
> NMI:          0          0   Non-maskable interrupts
> RES:       1180       2027   Rescheduling interrupts
> CAL:         27         64   function call interrupts
>
> _______________________________________________
> Full UART Log (from the relevant part):
> _______________________________________________
> [   28.652292] Setting mem allocation to 1913836 kiB
> [  214.320871] uhci_hcd 0000:00:1a.0: remove, state 4
> [  214.320983] usb usb1: USB disconnect, address 1
> [  214.322560] uhci_hcd 0000:00:1a.0: USB bus 1 deregistered
> [  214.322694] ACPI: PCI interrupt for device 0000:00:1a.0 disabled
> [  214.608987] pciback 0000:00:1a.0: seizing device
> [  214.609184] ACPI: PCI Interrupt 0000:00:1a.0[A] -> GSI 20 (level,
> low) -> IRQ 20
> [  214.609364] ACPI: PCI interrupt for device 0000:00:1a.0 disabled
> [  214.334168] uhci_hcd 0000:00:1a.1: remove, state 1
> [  214.334270] usb usb2: USB disconnect, address 1
> [  214.334362] usb 2-1: USB disconnect, address 3
> [  214.334803] uhci_hcd 0000:00:1a.1: USB bus 2 deregistered
> [  214.334971] ACPI: PCI interrupt for device 0000:00:1a.1 disabled
> [  214.621835] pciback 0000:00:1a.1: seizing device
> [  214.622056] ACPI: PCI Interrupt 0000:00:1a.1[B] -> GSI 21 (level,
> low) -> IRQ 21
> [  214.622258] ACPI: PCI interrupt for device 0000:00:1a.1 disabled
> [  214.627337] uhci_hcd 0000:00:1a.2: remove, state 4
> [  214.627545] usb usb3: USB disconnect, address 1
> [  214.627932] uhci_hcd 0000:00:1a.2: USB bus 3 deregistered
> [  214.628152] ACPI: PCI interrupt for device 0000:00:1a.2 disabled
> [  214.635694] pciback 0000:00:1a.2: seizing device
> [  214.636000] ACPI: PCI Interrupt 0000:00:1a.2[C] -> GSI 22 (level,
> low) -> IRQ 22
> [  214.636186] ACPI: PCI interrupt for device 0000:00:1a.2 disabled
> [  214.360823] ehci_hcd 0000:00:1a.7: remove, state 4
> [  214.360925] usb usb7: USB disconnect, address 1
> [  214.361017] usb 7-5: USB disconnect, address 3
> [  214.365340] ehci_hcd 0000:00:1a.7: USB bus 7 deregistered
> [  214.365506] ACPI: PCI interrupt for device 0000:00:1a.7 disabled
> [  214.371946] pciback 0000:00:1a.7: seizing device
> [  214.372390] ACPI: PCI Interrupt 0000:00:1a.7[D] -> GSI 23 (level,
> low) -> IRQ 23
> [  214.372583] ACPI: PCI interrupt for device 0000:00:1a.7 disabled
> [  214.376078] uhci_hcd 0000:00:1d.0: remove, state 4
> [  214.376303] usb usb4: USB disconnect, address 1
> [  214.376742] uhci_hcd 0000:00:1d.0: USB bus 4 deregistered
> [  214.376938] ACPI: PCI interrupt for device 0000:00:1d.0 disabled
> [  214.383475] pciback 0000:00:1d.0: seizing device
> [  214.383786] ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 16 (level,
> low) -> IRQ 16
> [  214.383978] ACPI: PCI interrupt for device 0000:00:1d.0 disabled
> [  214.387654] uhci_hcd 0000:00:1d.1: remove, state 4
> [  214.387857] usb usb5: USB disconnect, address 1
> [  214.388220] uhci_hcd 0000:00:1d.1: USB bus 5 deregistered
> [  214.388417] ACPI: PCI interrupt for device 0000:00:1d.1 disabled
> [  214.394899] pciback 0000:00:1d.1: seizing device
> [  214.395212] ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 17 (level,
> low) -> IRQ 17
> [  214.395398] ACPI: PCI interrupt for device 0000:00:1d.1 disabled
> [  214.677786] uhci_hcd 0000:00:1d.2: remove, state 1
> [  214.677890] usb usb6: USB disconnect, address 1
> [  214.677982] usb 6-2: USB disconnect, address 2
> [  214.678444] uhci_hcd 0000:00:1d.2: USB bus 6 deregistered
> [  214.678574] ACPI: PCI interrupt for device 0000:00:1d.2 disabled
> [  214.406336] pciback 0000:00:1d.2: seizing device
> [  214.406537] ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level,
> low) -> IRQ 18
> [  214.406725] ACPI: PCI interrupt for device 0000:00:1d.2 disabled
> [  214.410481] ehci_hcd 0000:00:1d.7: remove, state 4
> [  214.410691] usb usb8: USB disconnect, address 1
> [  214.414959] ehci_hcd 0000:00:1d.7: USB bus 8 deregistered
> [  214.415200] ACPI: PCI interrupt for device 0000:00:1d.7 disabled
> [  214.421670] pciback 0000:00:1d.7: seizing device
> [  214.422214] ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 19 (level,
> low) -> IRQ 19
> [  214.422407] ACPI: PCI interrupt for device 0000:00:1d.7 disabled
> [  231.366540] Setting mem allocation to 973824 kiB
> (XEN) memory.c:128:d0 Could not allocate order=9 extent: id=1
> memflags=0 (2 of 4)
> (XEN) memory.c:128:d0 Could not allocate order=9 extent: id=1
> memflags=0 (0 of 3)
> [  232.398469] pciback: vpci: 0000:00:1a.7: assign to virtual slot 0
> [  232.398776] pciback: vpci: 0000:00:1a.2: assign to virtual slot 0 func 2
> [  232.398973] pciback: vpci: 0000:00:1a.1: assign to virtual slot 0 func 1
> [  232.399171] pciback: vpci: 0000:00:1a.0: assign to virtual slot 0 func 0
> [  232.399318] pciback: vpci: 0000:00:1d.7: assign to virtual slot 1
> [  232.399509] pciback: vpci: 0000:00:1d.2: assign to virtual slot 1 func 2
> [  232.399717] pciback: vpci: 0000:00:1d.1: assign to virtual slot 1 func 1
> [  232.399946] pciback: vpci: 0000:00:1d.0: assign to virtual slot 1 func 0
> (XEN) [VT-D]iommu.c:1364:d0 domain_context_unmap:PCI: bdf = 0:1a.0
> (XEN) [VT-D]iommu.c:1252:d0 domain_context_mapping:PCI: bdf = 0:1a.0
> (XEN) [VT-D]io.c:251:d0 VT-d irq bind: m_irq = 14 device = 1a intx = 0
> (XEN) [VT-D]iommu.c:1364:d0 domain_context_unmap:PCI: bdf = 0:1a.7
> (XEN) [VT-D]iommu.c:1252:d0 domain_context_mapping:PCI: bdf = 0:1a.7
> (XEN) [VT-D]io.c:251:d0 VT-d irq bind: m_irq = 17 device = 1a intx = 3
> (XEN) [VT-D]iommu.c:1364:d0 domain_context_unmap:PCI: bdf = 0:1a.2
> (XEN) [VT-D]iommu.c:1252:d0 domain_context_mapping:PCI: bdf = 0:1a.2
> (XEN) [VT-D]io.c:251:d0 VT-d irq bind: m_irq = 16 device = 1a intx = 2
> (XEN) [VT-D]iommu.c:1364:d0 domain_context_unmap:PCI: bdf = 0:1a.1
> (XEN) [VT-D]iommu.c:1252:d0 domain_context_mapping:PCI: bdf = 0:1a.1
> (XEN) [VT-D]io.c:251:d0 VT-d irq bind: m_irq = 15 device = 1a intx = 1
> (XEN) [VT-D]iommu.c:1364:d0 domain_context_unmap:PCI: bdf = 0:1d.0
> (XEN) [VT-D]iommu.c:1252:d0 domain_context_mapping:PCI: bdf = 0:1d.0
> (XEN) [VT-D]io.c:251:d0 VT-d irq bind: m_irq = 10 device = 1d intx = 0
> (XEN) [VT-D]iommu.c:1364:d0 domain_context_unmap:PCI: bdf = 0:1d.7
> (XEN) [VT-D]iommu.c:1252:d0 domain_context_mapping:PCI: bdf = 0:1d.7
> (XEN) [VT-D]io.c:251:d0 VT-d irq bind: m_irq = 13 device = 1d intx = 3
> (XEN) [VT-D]iommu.c:1364:d0 domain_context_unmap:PCI: bdf = 0:1d.2
> (XEN) [VT-D]iommu.c:1252:d0 domain_context_mapping:PCI: bdf = 0:1d.2
> (XEN) [VT-D]io.c:251:d0 VT-d irq bind: m_irq = 12 device = 1d intx = 2
> (XEN) [VT-D]iommu.c:1364:d0 domain_context_unmap:PCI: bdf = 0:1d.1
> (XEN) [VT-D]iommu.c:1252:d0 domain_context_mapping:PCI: bdf = 0:1d.1
> (XEN) [VT-D]io.c:251:d0 VT-d irq bind: m_irq = 11 device = 1d intx = 1
> (XEN) HVM1: HVM Loader
> (XEN) HVM1: Detected Xen v3.4.1-rc7
> (XEN) HVM1: CPU speed is 2394 MHz
> (XEN) irq.c:243: Dom1 PCI link 0 changed 0 -> 5
> (XEN) HVM1: PCI-ISA link 0 routed to IRQ5
> (XEN) irq.c:243: Dom1 PCI link 1 changed 0 -> 10
> (XEN) HVM1: PCI-ISA link 1 routed to IRQ10
> (XEN) irq.c:243: Dom1 PCI link 2 changed 0 -> 11
> (XEN) HVM1: PCI-ISA link 2 routed to IRQ11
> (XEN) irq.c:243: Dom1 PCI link 3 changed 0 -> 5
> (XEN) HVM1: PCI-ISA link 3 routed to IRQ5
> (XEN) HVM1: pci dev 01:3 INTA->IRQ10
> (XEN) HVM1: pci dev 03:0 INTA->IRQ5
> (XEN) HVM1: pci dev 02:0 bar 10 size 02000000: f0000008
> (XEN) HVM1: pci dev 03:0 bar 14 size 01000000: f2000008
> (XEN) HVM1: pci dev 02:0 bar 14 size 00001000: f3000000
> (XEN) HVM1: pci dev 03:0 bar 10 size 00000100: 0000c001
> (XEN) HVM1: pci dev 01:1 bar 20 size 00000010: 0000c101
> (XEN) HVM1: Multiprocessor initialisation:
> (XEN) HVM1:  - CPU0 ... 36-bit phys ... fixed MTRRs ... var MTRRs
> [2/8] ... done.
> (XEN) HVM1: Writing SMBIOS tables ...
> (XEN) HVM1: Loading ROMBIOS ...
> (XEN) HVM1: 10940 bytes of ROMBIOS high-memory extensions:
> (XEN) HVM1:   Relocating to 0xfc000000-0xfc002abc ... done
> (XEN) HVM1: Creating MP tables ...
> (XEN) HVM1: Loading Cirrus VGABIOS ...
> (XEN) HVM1: Loading ACPI ...
> (XEN) HVM1:  - Lo data: 000ea020-000ea04f
> (XEN) HVM1:  - Hi data: fc002c00-fc0121cf
> (XEN) HVM1: vm86 TSS at fc012400
> (XEN) HVM1: BIOS map:
> (XEN) HVM1:  c0000-c8fff: VGA BIOS
> (XEN) HVM1:  eb000-eb148: SMBIOS tables
> (XEN) HVM1:  f0000-fffff: Main BIOS
> (XEN) HVM1: Invoking ROMBIOS ...
> (XEN) HVM1: $Revision: 1.221 $ $Date: 2008/12/07 17:32:29 $
> (XEN) stdvga.c:147:d1 entering stdvga and caching modes
> (XEN) HVM1: VGABios $Id: vgabios.c,v 1.67 2008/01/27 09:44:12 vruppert Exp $
> (XEN) HVM1: Bochs BIOS - build: 06/23/99
> (XEN) HVM1: $Revision: 1.221 $ $Date: 2008/12/07 17:32:29 $
> (XEN) HVM1: Options: apmbios pcibios eltorito PMM
> (XEN) HVM1:
> (XEN) HVM1: ata0-0: PCHS=12483/16/63 translation=lba LCHS=783/255/63
> (XEN) HVM1: ata0 master: QEMU HARDDISK ATA-7 Hard-Disk (6144 MBytes)
> (XEN) HVM1: IDE time out
> (XEN) HVM1:
> (XEN) HVM1:
> (XEN) HVM1:
> (XEN) HVM1: Press F12 for boot menu.
> (XEN) HVM1:
> (XEN) HVM1: Booting from Hard Disk...
> (XEN) HVM1: Booting from 0000:7c00
> (XEN) HVM1: int13_harddisk: function 15, unmapped device for ELDL=81
> (XEN) HVM1: *** int 15h function AX=e980, BX=006e not yet supported!
> (XEN) common.c:3623:d0 tracking VRAM f0000 - f0026
> (XEN) irq.c:243: Dom1 PCI link 0 changed 5 -> 0
> (XEN) irq.c:243: Dom1 PCI link 1 changed 10 -> 0
> (XEN) irq.c:243: Dom1 PCI link 2 changed 11 -> 0
> (XEN) irq.c:243: Dom1 PCI link 3 changed 5 -> 0
> (XEN) domctl.c:835:d0 memory_map:add: gfn=fbfff mfn=80101 nr_mfns=1
> (XEN) domctl.c:886:d0 ioport_map:add f_gport=ffe0 f_mport=1c00 np=20
> (XEN) domctl.c:886:d0 ioport_map:add f_gport=ffc0 f_mport=1860 np=20
> (XEN) domctl.c:886:d0 ioport_map:add f_gport=ffa0 f_mport=18e0 np=20
> (XEN) domctl.c:886:d0 ioport_map:add f_gport=ff80 f_mport=1880 np=20
> (XEN) domctl.c:886:d0 ioport_map:add f_gport=ff60 f_mport=18c0 np=20
> (XEN) domctl.c:886:d0 ioport_map:add f_gport=ff40 f_mport=18a0 np=20
> (XEN) domctl.c:835:d0 memory_map:add: gfn=fbffe mfn=80100 nr_mfns=1
> [  287.624198] ACPI: EC: missing write data confirmation, don't expect
> it any longer.
> [  293.748242] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 
> frozen
> [  293.748353] ata2.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
> [  293.748354]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
> [  293.748354]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask
> 0x4 (timeout)
> [  293.748658] ata2.00: status: { DRDY }
> [  294.060173] ata2: soft resetting link
> [  294.224137] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> [  297.579229] ata1.00: exception Emask 0x0 SAct 0xffff SErr 0x0
> action 0x2 frozen
> [  297.579344] ata1.00: cmd 61/10:00:f7:9e:ed/00:00:00:00:00/40 tag 0
> ncq 8192 out
> [  297.579345]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.579570] ata1.00: status: { DRDY }
> [  297.579657] ata1.00: cmd 61/18:08:6f:bc:65/00:00:00:00:00/40 tag 1
> ncq 12288 out
> [  297.579658]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.579849] ata1.00: status: { DRDY }
> [  297.579936] ata1.00: cmd 61/10:10:3f:1c:67/00:00:00:00:00/40 tag 2
> ncq 8192 out
> [  297.579937]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.580127] ata1.00: status: { DRDY }
> [  297.580215] ata1.00: cmd 61/08:18:27:26:67/00:00:00:00:00/40 tag 3
> ncq 4096 out
> [  297.580216]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.580406] ata1.00: status: { DRDY }
> [  297.580494] ata1.00: cmd 61/08:20:2f:26:67/00:00:00:00:00/40 tag 4
> ncq 4096 out
> [  297.580494]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.580684] ata1.00: status: { DRDY }
> [  297.580795] ata1.00: cmd 61/20:28:6f:27:67/00:00:00:00:00/40 tag 5
> ncq 16384 out
> [  297.580796]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.580999] ata1.00: status: { DRDY }
> [  297.581088] ata1.00: cmd 61/08:30:0f:33:67/00:00:00:00:00/40 tag 6
> ncq 4096 out
> [  297.581089]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.581281] ata1.00: status: { DRDY }
> [  297.581369] ata1.00: cmd 61/10:38:1f:9f:ed/00:00:00:00:00/40 tag 7
> ncq 8192 out
> [  297.581370]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.581563] ata1.00: status: { DRDY }
> [  297.581652] ata1.00: cmd 61/08:40:17:33:67/00:00:00:00:00/40 tag 8
> ncq 4096 out
> [  297.581653]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.582447] ata1.00: status: { DRDY }
> [  297.582536] ata1.00: cmd 61/50:48:c7:35:67/00:00:00:00:00/40 tag 9
> ncq 40960 out
> [  297.582537]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.582728] ata1.00: status: { DRDY }
> [  297.582817] ata1.00: cmd 61/10:50:b7:36:67/00:00:00:00:00/40 tag 10
> ncq 8192 out
> [  297.582818]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.583009] ata1.00: status: { DRDY }
> [  297.583097] ata1.00: cmd 61/08:58:3f:3a:67/00:00:00:00:00/40 tag 11
> ncq 4096 out
> [  297.583098]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.583293] ata1.00: status: { DRDY }
> [  297.583383] ata1.00: cmd 61/10:60:47:3a:67/00:00:00:00:00/40 tag 12
> ncq 8192 out
> [  297.583384]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.583613] ata1.00: status: { DRDY }
> [  297.583701] ata1.00: cmd 61/10:68:87:3b:67/00:00:00:00:00/40 tag 13
> ncq 8192 out
> [  297.583702]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.583894] ata1.00: status: { DRDY }
> [  297.583983] ata1.00: cmd 61/10:70:8f:3f:67/00:00:00:00:00/40 tag 14
> ncq 8192 out
> [  297.583983]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.584174] ata1.00: status: { DRDY }
> [  297.584262] ata1.00: cmd 61/08:78:27:41:67/00:00:00:00:00/40 tag 15
> ncq 4096 out
> [  297.584263]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
> 0x4 (timeout)
> [  297.584458] ata1.00: status: { DRDY }
> [  297.266871] ata1: soft resetting link
> [  297.430863] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
>
> Tom
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
>

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