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Date:	Sun, 02 May 2010 13:38:49 -0400
From:	Valdis.Kletnieks@...edu
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Jerome Glisse <jglisse@...hat.com>,
	Dave Airlie <airlied@...hat.com>,
	Pauli Nieminen <suokkos@...il.com>
Cc:	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: mmotm 2010-04-28 - nouveau driver issues

On Wed, 28 Apr 2010 16:53:32 PDT, akpm@...ux-foundation.org said:
> The mm-of-the-moment snapshot 2010-04-28-16-53 has been uploaded to
> 
>    http://userweb.kernel.org/~akpm/mmotm/

The nouveau driver had issues during boot, caused plymouth to have indigestion
and fall back to 24x80 character mode. This happened sometime between
-mmotm0422 and -mmotm0428.  Looks like something in linux-next, cc'ing
anybody who apparently touched nouveau code.  Will bisect if nobody has
a good idea what happened.

The X server was able to init the card and get gdm started just fine.

lspci says: 01:00.0 VGA compatible controller: nVidia Corporation G98M [Quadro NVS 160M] (rev a1)

[    1.038152] [drm] nouveau 0000:01:00.0: Detected 256MiB VRAM
[    1.194505] [TTM] Zone  kernel: Available graphics memory: 2013496 kiB.
[    1.194508] [ttm] Initializing pool allocator.
[    1.194896] ------------[ cut here ]------------
[    1.194903] WARNING: at arch/x86/mm/ioremap.c:111 __ioremap_caller+0x238/0x3f4()
[    1.194906] Hardware name: Latitude E6500                  
[    1.194908] Modules linked in:
[    1.194912] Pid: 1, comm: swapper Not tainted 2.6.34-rc5-mmotm0428 #1
[    1.194915] Call Trace:
[    1.194921]  [<ffffffff81038936>] warn_slowpath_common+0x80/0x98
[    1.194925]  [<ffffffff81038963>] warn_slowpath_null+0x15/0x17
[    1.194929]  [<ffffffff8102064a>] __ioremap_caller+0x238/0x3f4
[    1.194934]  [<ffffffff812b27ba>] ? ttm_mem_reg_ioremap+0x54/0x7b
[    1.194939]  [<ffffffff810d6aff>] ? kmem_cache_alloc_notrace+0x68/0xc0
[    1.194942]  [<ffffffff8102088f>] ioremap_nocache+0x12/0x14
[    1.194946]  [<ffffffff812b27ba>] ttm_mem_reg_ioremap+0x54/0x7b
[    1.194950]  [<ffffffff812b2b5c>] ttm_bo_move_memcpy+0x5e/0x3e0
[    1.194954]  [<ffffffff812a4d7d>] ? drm_mm_split_at_start+0x79/0x95
[    1.194959]  [<ffffffff8120ec2d>] ? do_raw_spin_unlock+0xd0/0xfa
[    1.194964]  [<ffffffff812c21cf>] nouveau_bo_move+0x19e/0x222
[    1.194968]  [<ffffffff812afe79>] ttm_bo_handle_move_mem+0x1b4/0x2c0
[    1.194972]  [<ffffffff812b1d9e>] ttm_bo_move_buffer+0xf4/0x14d
[    1.194976]  [<ffffffff81210b2d>] ? __list_add+0xb7/0xd2
[    1.194980]  [<ffffffff812b1ee3>] ttm_bo_validate+0xec/0x13e
[    1.194983]  [<ffffffff8120e900>] ? do_raw_write_unlock+0x7e/0xc8
[    1.194987]  [<ffffffff812b2315>] ttm_bo_init+0x3e0/0x419
[    1.194990]  [<ffffffff812c2957>] nouveau_bo_new+0x394/0x405
[    1.194994]  [<ffffffff812c2510>] ? nouveau_bo_del_ttm+0x0/0xb3
[    1.194997]  [<ffffffff812a4cca>] ? drm_mm_init+0x63/0x6b
[    1.195015]  [<ffffffff812ba319>] nouveau_mem_init+0x262/0x42f
[    1.195019]  [<ffffffff812b7e02>] nouveau_card_init+0xb09/0xe35
[    1.195023]  [<ffffffff812b86de>] nouveau_load+0x4e6/0x50c
[    1.195028]  [<ffffffff812a0fee>] drm_get_dev+0x3bf/0x4cc
[    1.195034]  [<ffffffff8158c3be>] nouveau_pci_probe+0x10/0x12
[    1.195039]  [<ffffffff8121d71b>] local_pci_probe+0x12/0x16
[    1.195043]  [<ffffffff8121db88>] pci_device_probe+0x60/0x8f
[    1.195048]  [<ffffffff813082e3>] ? driver_sysfs_add+0x47/0x6c
[    1.195052]  [<ffffffff81308462>] driver_probe_device+0xde/0x178
[    1.195056]  [<ffffffff81308558>] __driver_attach+0x5c/0x80
[    1.195060]  [<ffffffff813084fc>] ? __driver_attach+0x0/0x80
[    1.195063]  [<ffffffff813084fc>] ? __driver_attach+0x0/0x80
[    1.195067]  [<ffffffff81307a47>] bus_for_each_dev+0x54/0x89
[    1.195071]  [<ffffffff8130829a>] driver_attach+0x19/0x1b
[    1.195075]  [<ffffffff81307ee2>] bus_add_driver+0xb4/0x206
[    1.195079]  [<ffffffff81308857>] driver_register+0xb8/0x129
[    1.195083]  [<ffffffff8121ddbe>] __pci_register_driver+0x63/0xd3
[    1.195088]  [<ffffffff81b4f4c4>] ? nouveau_init+0x0/0x52
[    1.195092]  [<ffffffff8129ba89>] drm_init+0x6b/0xd1
[    1.195096]  [<ffffffff81b4f4c4>] ? nouveau_init+0x0/0x52
[    1.195100]  [<ffffffff81b4f514>] nouveau_init+0x50/0x52
[    1.195104]  [<ffffffff810001ef>] do_one_initcall+0x59/0x14e
[    1.195109]  [<ffffffff81b2e68a>] kernel_init+0x144/0x1ce
[    1.195113]  [<ffffffff81003414>] kernel_thread_helper+0x4/0x10
[    1.195117]  [<ffffffff81598a40>] ? restore_args+0x0/0x30
[    1.195121]  [<ffffffff81b2e546>] ? kernel_init+0x0/0x1ce
[    1.195125]  [<ffffffff81003410>] ? kernel_thread_helper+0x0/0x10
[    1.195192] ---[ end trace f31dec58d66d24a5 ]---
[    1.195323] [drm] nouveau 0000:01:00.0: failed to reserve VGA memory
[    1.195360] resource map sanity check conflict: 0x0 0xfffff 0xa0000 0xbffff PCI Bus 0000:00
[    1.195363] ------------[ cut here ]------------
[    1.195366] WARNING: at arch/x86/mm/ioremap.c:98 __ioremap_caller+0x13b/0x3f4()
[    1.195369] Hardware name: Latitude E6500                  
[    1.195371] Info: mapping multiple BARs. Your kernel is fine.
[    1.195373] Modules linked in:
[    1.195376] Pid: 1, comm: swapper Tainted: G        W   2.6.34-rc5-mmotm0428 #1
[    1.195378] Call Trace:
[    1.195382]  [<ffffffff81038936>] warn_slowpath_common+0x80/0x98
[    1.195386]  [<ffffffff810389e2>] warn_slowpath_fmt+0x41/0x43
[    1.195390]  [<ffffffff8102054d>] __ioremap_caller+0x13b/0x3f4
[    1.195394]  [<ffffffff812b27ba>] ? ttm_mem_reg_ioremap+0x54/0x7b
[    1.195399]  [<ffffffff81064ef0>] ? mark_held_locks+0x52/0x70
[    1.195403]  [<ffffffff810d6aff>] ? kmem_cache_alloc_notrace+0x68/0xc0
[    1.195407]  [<ffffffff8102088f>] ioremap_nocache+0x12/0x14
[    1.195410]  [<ffffffff812b27ba>] ttm_mem_reg_ioremap+0x54/0x7b
[    1.195414]  [<ffffffff812b2b5c>] ttm_bo_move_memcpy+0x5e/0x3e0
[    1.195418]  [<ffffffff812a4d7d>] ? drm_mm_split_at_start+0x79/0x95
[    1.195421]  [<ffffffff8120ec2d>] ? do_raw_spin_unlock+0xd0/0xfa
[    1.195425]  [<ffffffff812c21cf>] nouveau_bo_move+0x19e/0x222
[    1.195429]  [<ffffffff812afe79>] ttm_bo_handle_move_mem+0x1b4/0x2c0
[    1.195433]  [<ffffffff812b1d9e>] ttm_bo_move_buffer+0xf4/0x14d
[    1.195437]  [<ffffffff81210b2d>] ? __list_add+0xb7/0xd2
[    1.195441]  [<ffffffff812b1ee3>] ttm_bo_validate+0xec/0x13e
[    1.195445]  [<ffffffff8120e900>] ? do_raw_write_unlock+0x7e/0xc8
[    1.195448]  [<ffffffff812b2315>] ttm_bo_init+0x3e0/0x419
[    1.195452]  [<ffffffff812c2957>] nouveau_bo_new+0x394/0x405
[    1.195455]  [<ffffffff812c2510>] ? nouveau_bo_del_ttm+0x0/0xb3
[    1.195459]  [<ffffffff81064ef0>] ? mark_held_locks+0x52/0x70
[    1.195463]  [<ffffffff810d56ff>] ? trace_kmalloc+0x40/0xb4
[    1.195468]  [<ffffffff812ea53f>] nv50_instmem_populate+0x6d/0x11a
[    1.195473]  [<ffffffff812bb78a>] nouveau_gpuobj_new+0x252/0x34c
[    1.195477]  [<ffffffff812c0c36>] nouveau_sgdma_init+0x5f/0x241
[    1.195481]  [<ffffffff8121b8ae>] ? pci_find_capability+0x6d/0x7c
[    1.195485]  [<ffffffff812ba3e7>] nouveau_mem_init+0x330/0x42f
[    1.195489]  [<ffffffff812b7e02>] nouveau_card_init+0xb09/0xe35
[    1.195493]  [<ffffffff812b86de>] nouveau_load+0x4e6/0x50c
[    1.195497]  [<ffffffff812a0fee>] drm_get_dev+0x3bf/0x4cc
[    1.195501]  [<ffffffff8158c3be>] nouveau_pci_probe+0x10/0x12
[    1.195505]  [<ffffffff8121d71b>] local_pci_probe+0x12/0x16
[    1.195509]  [<ffffffff8121db88>] pci_device_probe+0x60/0x8f
[    1.195513]  [<ffffffff813082e3>] ? driver_sysfs_add+0x47/0x6c
[    1.195517]  [<ffffffff81308462>] driver_probe_device+0xde/0x178
[    1.195521]  [<ffffffff81308558>] __driver_attach+0x5c/0x80
[    1.195525]  [<ffffffff813084fc>] ? __driver_attach+0x0/0x80
[    1.195528]  [<ffffffff813084fc>] ? __driver_attach+0x0/0x80
[    1.195532]  [<ffffffff81307a47>] bus_for_each_dev+0x54/0x89
[    1.195536]  [<ffffffff8130829a>] driver_attach+0x19/0x1b
[    1.195540]  [<ffffffff81307ee2>] bus_add_driver+0xb4/0x206
[    1.195544]  [<ffffffff81308857>] driver_register+0xb8/0x129
[    1.195548]  [<ffffffff8121ddbe>] __pci_register_driver+0x63/0xd3
[    1.195552]  [<ffffffff81b4f4c4>] ? nouveau_init+0x0/0x52
[    1.195556]  [<ffffffff8129ba89>] drm_init+0x6b/0xd1
[    1.195560]  [<ffffffff81b4f4c4>] ? nouveau_init+0x0/0x52
[    1.195563]  [<ffffffff81b4f514>] nouveau_init+0x50/0x52
[    1.195567]  [<ffffffff810001ef>] do_one_initcall+0x59/0x14e
[    1.195571]  [<ffffffff81b2e68a>] kernel_init+0x144/0x1ce
[    1.195575]  [<ffffffff81003414>] kernel_thread_helper+0x4/0x10
[    1.195579]  [<ffffffff81598a40>] ? restore_args+0x0/0x30
[    1.195582]  [<ffffffff81b2e546>] ? kernel_init+0x0/0x1ce
[    1.195586]  [<ffffffff81003410>] ? kernel_thread_helper+0x0/0x10
[    1.195588] ---[ end trace f31dec58d66d24a6 ]---
[    1.195597] [drm] nouveau 0000:01:00.0: error getting PRAMIN backing pages: -12
[    1.195693] [drm] nouveau 0000:01:00.0: Error creating sgdma object: -12
[    1.195784] [drm] nouveau 0000:01:00.0: Error initialising PCI(E): -12
[    1.196854] nouveau 0000:01:00.0: PCI INT A disabled
[    1.196863] nouveau: probe of 0000:01:00.0 failed with error -12


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