[Bug 65652] [HSW] It can't enter to OS due to i915 hang up when warm boot or cold boot sometimes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65652

Paulo Zanoni <przanoni at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |przanoni at gmail.com

--- Comment #6 from Paulo Zanoni <przanoni at gmail.com> ---
Does this problem also happen with newer Kernels? Could you please test 3.10 or
3.11-rc3?


The first error message while booting is this one:

[    0.000000] ------------[ cut here ]------------
[    0.000000] WARNING: at drivers/iommu/dmar.c:483
warn_invalid_dmar+0x86/0xa0()
[    0.000000] Hardware name: SharkBay
[    0.000000] Your BIOS is broken; DMAR reported at address 0!
[    0.000000] BIOS vendor: LENOVO; Ver: 7CCN12WW; Product Version: INVALID     
[    0.000000] Modules linked in:
[    0.000000] Pid: 0, comm: swapper Not tainted 3.9.2-8.1.1.lp19.x86_64 #1
[    0.000000] Call Trace:
[    0.000000]  [<ffffffff8105ed6f>] warn_slowpath_common+0x7f/0xc0
[    0.000000]  [<ffffffff8105ee0f>] warn_slowpath_fmt_taint+0x3f/0x50
[    0.000000]  [<ffffffff81d19f51>] ? early_ioremap+0x13/0x15
[    0.000000]  [<ffffffff81d1160a>] ? __acpi_map_table+0x13/0x1a
[    0.000000]  [<ffffffff81594b26>] warn_invalid_dmar+0x86/0xa0
[    0.000000]  [<ffffffff81d42f89>] check_zero_address+0x57/0xf7
[    0.000000]  [<ffffffff81d43040>] detect_intel_iommu+0x17/0xb9
[    0.000000]  [<ffffffff81d0be50>] pci_iommu_alloc+0x4a/0x72
[    0.000000]  [<ffffffff81d19920>] mem_init+0x15/0x133
[    0.000000]  [<ffffffff81d03cc9>] start_kernel+0x1e3/0x3ff
[    0.000000]  [<ffffffff81d038e5>] ? repair_env_string+0x5e/0x5e
[    0.000000]  [<ffffffff81d035de>] x86_64_start_reservations+0x2a/0x2c
[    0.000000]  [<ffffffff81d036d1>] x86_64_start_kernel+0xf1/0x100
[    0.000000] ---[ end trace 363ca17e08482314 ]---

I wonder if this is related to the gfx problems later.

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