[Bug 89350] [BSW bisected] kernel fails to start up

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89350

--- Comment #6 from ye.tian <yex.tian at intel.com> ---
Created attachment 113931
  --> https://bugs.freedesktop.org/attachment.cgi?id=113931&action=edit
boot log

   29.354302] Call Trace:
[   29.383655]  [<ffffffffa00b0af6>] ? intel_logical_rings_init+0xf3/0x42e
[i915]
[   29.470313]  [<ffffffffa009ad9e>] ? i915_gem_init+0x17c/0x1cb [i915]
[   29.546559]  [<ffffffffa00fd843>] ? i915_driver_load+0xe3e/0x1047 [i915]
[   29.626898]  [<ffffffff81064b54>] ? __wake_up+0x33/0x44
[   29.689524]  [<ffffffff8104a1fb>] ? call_usermodehelper_exec+0xee/0xfd
[   29.767773]  [<ffffffff81330000>] ? bsg_open+0xd7/0x28d
[   29.830395]  [<ffffffff81338929>] ? kobject_uevent_env+0x47f/0x4b7
[   29.904483]  [<ffffffff813e65ff>] ? get_device+0xf/0x18
[   29.967111]  [<ffffffff8178ca92>] ? klist_add_tail+0x1c/0x3e
[   30.034941]  [<ffffffff813e7a35>] ? device_add+0x4d6/0x4e7
[   30.100688]  [<ffffffff813366d2>] ? idr_replace+0x2d/0x93
[   30.165408]  [<ffffffffa0007721>] ? drm_dev_register+0x73/0xe5 [drm]
[   30.241585]  [<ffffffffa00098e0>] ? drm_get_pci_dev+0xf7/0x1b3 [drm]
[   30.317750]  [<ffffffff8135f631>] ? local_pci_probe+0x35/0x79
[   30.386623]  [<ffffffff8135f740>] ? pci_device_probe+0xcb/0xef
[   30.456538]  [<ffffffff813e9af2>] ? driver_probe_device+0x9c/0x1d1
[   30.530625]  [<ffffffff813e9caf>] ? __driver_attach+0x53/0x73
[   30.599497]  [<ffffffff813e9c5c>] ? __device_attach+0x35/0x35
[   30.668369]  [<ffffffff813e83c5>] ? bus_for_each_dev+0x6e/0x78
[   30.738284]  [<ffffffff813e93c0>] ? bus_add_driver+0x101/0x1cb
[   30.808198]  [<ffffffff813ea2a5>] ? driver_register+0x83/0xbb
[   30.877070]  [<ffffffffa0145000>] ? 0xffffffffa0145000
[   30.938650]  [<ffffffff810002fd>] ? do_one_initcall+0xe2/0x161
[   31.008570]  [<ffffffff8110b04f>] ? kmem_cache_alloc_trace+0x2a/0xfb
[   31.084736]  [<ffffffff8179032b>] ? do_init_module+0x55/0x1b5
[   31.153613]  [<ffffffff8108f1b5>] ? load_module+0x1479/0x1951
[   31.222488]  [<ffffffff8108cd08>] ? store_uevent+0x36/0x36
[   31.288236]  [<ffffffff8179a922>] ? page_fault+0x22/0x30
[   31.351900]  [<ffffffff8108f71b>] ? SyS_init_module+0x8e/0x99
[   31.420773]  [<ffffffff81798e92>] ? system_call_fastpath+0x12/0x17
[   31.494849] Code: b8 00 00 00 41 8b 4e 0c 8d 91 74 02 00 00 89 90 c0 00 00
00 41 8b 76 0c 8d 96 70 02 00 00 89 90 c8 00 00 00 49 8b 97 90 01 00 00 <8b> 52
0c 89 90 94 00 00 00 49 8b 97 90 01 00 00 48 8b 52 08 89
[   31.727814] RIP  [<ffffffffa00b06aa>]
intel_lr_context_deferred_create+0x541/0x7f5 [i915]
[   31.826034]  RSP <ffff880175447958>
[   31.867819] CR2: 000000000000000c
[   31.907521] ---[ end trace 9b8866b9721808b2 ]---

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