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[Jim <jasahasch@xxxxxxxxx>]

** Changed in: linux (Ubuntu)
       Status: Invalid => New

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https://bugs.launchpad.net/bugs/1348858

Title:
  WARNING: CPU: 0 PID: 0 at
  /build/buildd/linux-3.13.0/drivers/iommu/dmar.c:488
  warn_invalid_dmar+0x7e/0x90()

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  New

Bug description:
  [    0.000000] WARNING: CPU: 0 PID: 0 at /build/buildd/linux-3.13.0/drivers/iommu/dmar.c:488 warn_invalid_dmar+0x7e/0x90()
  [    0.000000] Your BIOS is broken; DMAR reported at address 0!
  [    0.000000] BIOS vendor: Insyde; Ver: F.24; Product Version: 0882100000305E00000610100
  [    0.000000] Modules linked in:
  [    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.13.0-32-generic #57-Ubuntu
  [    0.000000] Hardware name: Hewlett-Packard HP Pavilion 14 Notebook PC/2165, BIOS F.24 02/13/2014
  [    0.000000]  000000000000000b ffffffff81c01de8 ffffffff8171bcb4 ffffffff81c01e30
  [    0.000000]  ffffffff81c01e20 ffffffff810676cd ffffffff81fde008 ffffffff81fde048
  [    0.000000]  0000000000000000 ffffffff81de12c0 ffffffff81c01fb0 ffffffff81c01e80
  [    0.000000] Call Trace:
  [    0.000000]  [<ffffffff8171bcb4>] dump_stack+0x45/0x56
  [    0.000000]  [<ffffffff810676cd>] warn_slowpath_common+0x7d/0xa0
  [    0.000000]  [<ffffffff81067784>] warn_slowpath_fmt_taint+0x44/0x50
  [    0.000000]  [<ffffffff81d502c4>] ? early_ioremap+0x13/0x15
  [    0.000000]  [<ffffffff81d45ee6>] ? __acpi_map_table+0x13/0x18
  [    0.000000]  [<ffffffff815f2bae>] warn_invalid_dmar+0x7e/0x90
  [    0.000000]  [<ffffffff81d8ab6e>] check_zero_address+0x68/0xf4
  [    0.000000]  [<ffffffff81d8ac0f>] detect_intel_iommu+0x15/0xae
  [    0.000000]  [<ffffffff81d3ffb5>] pci_iommu_alloc+0x4a/0x6c
  [    0.000000]  [<ffffffff81d4fc61>] mem_init+0x17/0x9c
  [    0.000000]  [<ffffffff81d35d3a>] start_kernel+0x202/0x443
  [    0.000000]  [<ffffffff81d35941>] ? repair_env_string+0x5c/0x5c
  [    0.000000]  [<ffffffff81d35120>] ? early_idt_handlers+0x120/0x120
  [    0.000000]  [<ffffffff81d355ee>] x86_64_start_reservations+0x2a/0x2c
  [    0.000000]  [<ffffffff81d35733>] x86_64_start_kernel+0x143/0x152
  [    0.000000] ---[ end trace 488581fbeae80768 ]---

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