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xen-bugs
[Xen-bugs] [Bug 1409] VT-d fault causes disk corrupted or Dom0 kernel pa
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1409
------- Comment #1 from haicheng.li@xxxxxxxxx 2009-01-21 19:29 -------
=========================
err 3, Dom0 complains disk errors while creating HVM guests.
Dom0 errors:
ata2.00: tag 27 cmd 0x61 Emask 0x60 sta 0x40 err 0x0 (host bus error)
ata2.00: tag 28 cmd 0x61 Emask 0x60 sta 0x40 err 0x0 (host bus error)
ata2.00: tag 29 cmd 0x61 Emask 0x60 sta 0x40 err 0x0 (host bus error)
ata2.00: tag 30 cmd 0x61 Emask 0x60 sta 0x40 err 0x0 (host bus error)
ata2: softreset failed (1st FIS failed)
ata2: softreset failed, retrying in 5 secs
ata2: port is slow to response, please be patient
Xen dmesg:
(XEN) [VT-D]iommu.c:721: iommu_page_fault: iommu->reg = ffff828bfff55000
(XEN) [VT-D]iommu.c:690: iommu_fault_status: Fault Overflow
(XEN) [VT-D]iommu.c:693: iommu_fault_status: Primary Pending Fault
(XEN) [VT-D]iommu.c:675: iommu_fault:DMA Write: 0:1f.2 addr 7d804000 REASON 5
iommu->reg = ffff828bfff55000
(XEN) print_vtd_entries: iommu = ffff83007da72240 bdf = 0:1f:2 gmfn = 7d804
(XEN) root_entry = ffff83007b5bd000
(XEN) root_entry[0] = 7d931001
(XEN) context = ffff83007d931000
(XEN) context[fa] = 101_7c902001
(XEN) l3 = ffff83007c902000
(XEN) l3_index = 1
(XEN) l3[1] = 7d620003
(XEN) l2 = ffff83007d620000
(XEN) l2_index = 1ec
(XEN) l2[1ec] = 7d933003
(XEN) l1 = ffff83007d933000
(XEN) l1_index = 4
(XEN) l1[4] = 0
(XEN) l1[4] not present
(XEN) [VT-D]iommu.c:721: iommu_page_fault: iommu->reg = ffff828bfff55000
(XEN) [VT-D]iommu.c:690: iommu_fault_status: Fault Overflow
(XEN) [VT-D]iommu.c:693: iommu_fault_status: Primary Pending Fault
(XEN) [VT-D]iommu.c:675: iommu_fault:DMA Write: 0:1f.2 addr 7d7f6000 REASON 5
iommu->reg = ffff828bfff55000
(XEN) print_vtd_entries: iommu = ffff83007da72240 bdf = 0:1f:2 gmfn = 7d7f6
(XEN) root_entry = ffff83007b5bd000
(XEN) root_entry[0] = 7d931001
(XEN) context = ffff83007d931000
(XEN) context[fa] = 101_7c902001
(XEN) l3 = ffff83007c902000
(XEN) l3_index = 1
(XEN) l3[1] = 7d620003
(XEN) l2 = ffff83007d620000
(XEN) l2_index = 1eb
(XEN) l2[1eb] = 7d934003
(XEN) l1 = ffff83007d934000
(XEN) l1_index = 1f6
(XEN) l1[1f6] = 0
(XEN) l1[1f6] not present
(XEN) [VT-D]iommu.c:721: iommu_page_fault: iommu->reg = ffff828bfff55000
(XEN) [VT-D]iommu.c:690: iommu_fault_status: Fault Overflow
(XEN) [VT-D]iommu.c:693: iommu_fault_status: Primary Pending Fault
(XEN) [VT-D]iommu.c:675: iommu_fault:DMA Write: 0:1f.2 addr 7d805000 REASON 5
iommu->reg = ffff828bfff55000
(XEN) print_vtd_entries: iommu = ffff83007da72240 bdf = 0:1f:2 gmfn = 7d805
(XEN) root_entry = ffff83007b5bd000
(XEN) root_entry[0] = 7d931001
(XEN) context = ffff83007d931000
(XEN) context[fa] = 101_7c902001
(XEN) l3 = ffff83007c902000
(XEN) l3_index = 1
(XEN) l3[1] = 7d620003
(XEN) l2 = ffff83007d620000
(XEN) l2_index = 1ec
(XEN) l2[1ec] = 7d933003
(XEN) l1 = ffff83007d933000
(XEN) l1_index = 5
(XEN) l1[5] = 0
(XEN) l1[5] not present
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