Re: [Xen-devel] [PATCH] fix iommu interrupt setup

[Alexia Benington <alexbenington@xxxxxxxxx>]

I'm getting the same bug.
-Alex

(XEN) ----[ Xen-3.4-unstable  x86_64  debug=y  Not tainted ]----
(XEN) CPU:    0
(XEN) RIP:    e008:[<ffff828c8011b62f>] check_lock+0x19/0x4e
(XEN) RFLAGS: 0000000000010046   CONTEXT: hypervisor
(XEN) rax: 0000000000000001   rbx: 0000000000000040   rcx: 0000000000000001
(XEN) rdx: 0000000000000082   rsi: 0000000000000001   rdi: 0000000000000044
(XEN) rbp: ffff828c80277c58   rsp: ffff828c80277c58   r8:  0000000000000005
(XEN) r9:  0000000000000001   r10: 0000000000000001   r11: ffff828c8028e360
(XEN) r12: 0000000000000082   r13: 0000000000000282   r14: 0000000000000090
(XEN) r15: ffff83013bfba430   cr0: 000000008005003b   cr4: 00000000000026f0
(XEN) cr3: 00000000bd47c000   cr2: 0000000000000044
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: 0000   cs: e008
(XEN) Xen stack trace from rsp=ffff828c80277c58:
(XEN)    ffff828c80277c78 ffff828c8011b7aa 0000000000000000 0000000000000040
(XEN)    ffff828c80277c98 ffff828c8012e223 ffff828c802a1c00 ffff828c802a1c24
(XEN)    ffff828c80277ca8 ffff828c8012e282 ffff828c80277ce8 ffff828c80147e90
(XEN)    ffff828c80277ce8 00000000fffffff4 0000000000000090 ffff828c8012e938
(XEN)    ffff828c801e31cd ffff83013bff1f90 ffff828c80277d28 ffff828c801483be
(XEN)    ffff83013bfba430 0000000000000090 ffff83013bff1f90 0000000000004800
(XEN)    ffff83013bff1f90 ffff828c8029d400 ffff828c80277d68 ffff828c8012e5ef
(XEN)    ffff828c80277d48 0000000000000003 ffff83013bff1f90 0000000000000282
(XEN)    ffff83013bff16f0 0000000000100000 ffff828c80277d98 ffff828c8012e7a1
(XEN)    0000000000000003 ffff83013bfba330 ffff828c8020c930 0000000000000020
(XEN)    ffff828c80277de8 ffff828c8012fe48 ffff828c80277dd8 ffff828c8012a2e9
(XEN)    0000000000000002 000100018020a4c0 0001000100010001 00000000ffffffed
(XEN)    ffff828c8022fc08 0000000000000003 ffff828c80277e08 ffff828c8012c008
(XEN)    ffff828c80277e08 ffff828c8022faf8 ffff828c80277f18 ffff828c80223d09
(XEN)    0000000000000000 0000000000000000 0000000000000000 ffff828c8020f665
(XEN)    ffffffffc0270000 ffff8300bd47cff8 ffff8300bd47dff8 000000000008bf50
(XEN)    0000000000000000 0000000000000000 0000000000000000 ffff83000008bfc0
(XEN)    ffff83000008bf50 0000000000cc3c00 0000000000000000 0000000000000000
(XEN)    0000000000000000 0000000000000000 0000000000000000 0000000000000000
(XEN)    0000000000000000 0000000000000000 0000000800000000 000000010000006e
(XEN) Xen call trace:
(XEN)    [<ffff828c8011b62f>] check_lock+0x19/0x4e
(XEN)    [<ffff828c8011b7aa>] _spin_lock_irqsave+0x21/0x3f
(XEN)    [<ffff828c8012e223>] dma_msi_unmask+0x2a/0x4b
(XEN)    [<ffff828c8012e282>] dma_msi_startup+0x9/0x10
(XEN)    [<ffff828c80147e90>] setup_irq_vector+0x73/0x99
(XEN)    [<ffff828c801483be>] request_irq_vector+0x6c/0x9a
(XEN)    [<ffff828c8012e5ef>] iommu_set_interrupt+0x97/0x10f
(XEN)    [<ffff828c8012e7a1>] init_vtd_hw+0x13a/0x2d1
(XEN)    [<ffff828c8012fe48>] intel_vtd_setup+0x330/0x4bb
(XEN)    [<ffff828c8012c008>] iommu_setup+0x2d/0xf5
(XEN)    [<ffff828c80223d09>] __start_xen+0x463f/0x4956
(XEN)
(XEN) Pagetable walk from 0000000000000044:
(XEN)  L4[0x000] = 000000013bff0063 5555555555555555
(XEN)  L3[0x000] = 000000013bfef063 5555555555555555
(XEN)  L2[0x000] = 000000013bfee063 5555555555555555
(XEN)  L1[0x000] = 0000000000000000 ffffffffffffffff
(XEN)
(XEN) ****************************************
(XEN) Panic on CPU 0:
(XEN) FATAL PAGE FAULT
(XEN) [error_code=0000]
(XEN) Faulting linear address: 0000000000000044
(XEN) ****************************************
(XEN)
(XEN) Reboot in five seconds...
(XEN) Resetting with ACPI MEMORY or I/O RESET_REG.

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