Hi

Booted on Toshiba laptop, x86_64, NVIDIA Corporation GT218 [GeForce 310M], latest rc, and got this. Please let me know if you need additional information.

[ 16.595094] [TTM] Zone dma32: Available graphics memory: 2097152 kiB [ 16.595096] [TTM] Initializing pool allocator [ 16.595147] [TTM] Initializing DMA pool allocator [ 16.600363] nouveau [ DRM] VRAM: 512 MiB [ 16.600367] nouveau [ DRM] GART: 512 MiB [ 16.600387] nouveau [ DRM] BIT BIOS found [ 16.600391] nouveau [ DRM] Bios version 70.18.5f.00 [ 16.600394] nouveau [ DRM] TMDS table version 2.0 [ 16.600397] nouveau [ DRM] DCB version 4.0 [ 16.600400] nouveau [ DRM] DCB outp 00: 01000323 00010034 [ 16.600419] nouveau [ DRM] DCB outp 01: 02011300 00000000 [ 16.600421] nouveau [ DRM] DCB outp 02: 08022382 00020010 [ 16.600424] nouveau [ DRM] DCB conn 00: 00000040 [ 16.600427] nouveau [ DRM] DCB conn 01: 00000100 [ 16.600430] nouveau [ DRM] DCB conn 02: 00002261 [ 16.677661] [ 16.678006] ============================================= [ 16.678006] [ INFO: possible recursive locking detected ] [ 16.678006] 3.8.0-rc7-lap #1 Tainted: G W [ 16.678006] --------------------------------------------- [ 16.678006] udevd/1236 is trying to acquire lock: [ 16.678006] (&subdev->mutex){+.+.+.}, at: [<ffffffffa0291ca4>] nouveau_instobj_create_+0x3c/0x7a [nouveau] [ 16.678006] [ 16.678006] but task is already holding lock: [ 16.678006] (&subdev->mutex){+.+.+.}, at: [<ffffffffa02993be>] nv50_disp_data_ctor+0x40/0xaf [nouveau] [ 16.678006] [ 16.678006] other info that might help us debug this: [ 16.678006] Possible unsafe locking scenario: [ 16.678006] [ 16.678006] CPU0 [ 16.678006] ---- [ 16.678006] lock(&subdev->mutex); [ 16.678006] lock(&subdev->mutex); [ 16.678006] [ 16.678006] *** DEADLOCK *** [ 16.678006] [ 16.678006] May be due to missing lock nesting notation [ 16.678006] [ 16.678006] 4 locks held by udevd/1236: [ 16.678006] #0: (&__lockdep_no_validate__){......}, at: [<ffffffff812daaf4>] device_lock+0xf/0x11 [ 16.678006] #1: (&__lockdep_no_validate__){......}, at: [<ffffffff812daaf4>] device_lock+0xf/0x11 [ 16.678006] #2: (drm_global_mutex){+.+.+.}, at: [<ffffffff812c6fa7>] drm_get_pci_dev+0xb9/0x265 [ 16.678006] #3: (&subdev->mutex){+.+.+.}, at: [<ffffffffa02993be>] nv50_disp_data_ctor+0x40/0xaf [nouveau] [ 16.678006] [ 16.678006] stack backtrace: [ 16.678006] Pid: 1236, comm: udevd Tainted: G W 3.8.0-rc7-lap #1 [ 16.678006] Call Trace: [ 16.678006] [<ffffffff81070969>] __lock_acquire+0xaa2/0xebc [ 16.678006] [<ffffffff81077bd4>] ? __module_text_address+0xd/0x5a [ 16.678006] [<ffffffff8107b745>] ? is_module_text_address+0x1d/0x29 [ 16.678006] [<ffffffff810711a4>] lock_acquire+0x7e/0x94 [ 16.678006] [<ffffffffa0291ca4>] ? nouveau_instobj_create_+0x3c/0x7a [nouveau] [ 16.678006] [<ffffffff815372a3>] __mutex_lock_common+0x5c/0x379 [ 16.678006] [<ffffffffa0291ca4>] ? nouveau_instobj_create_+0x3c/0x7a [nouveau] [ 16.678006] [<ffffffffa0291ca4>] ? nouveau_instobj_create_+0x3c/0x7a [nouveau] [ 16.678006] [<ffffffff815376bb>] mutex_lock_nested+0x3b/0x40 [ 16.678006] [<ffffffffa0291ca4>] nouveau_instobj_create_+0x3c/0x7a [nouveau] [ 16.678006] [<ffffffffa029275b>] nv50_instobj_ctor+0x45/0xde [nouveau] [ 16.678006] [<ffffffffa027c893>] nouveau_object_ctor+0x28/0x9c [nouveau] [ 16.678006] [<ffffffffa029259c>] nv50_instmem_alloc+0x21/0x23 [nouveau] [ 16.678006] [<ffffffffa027b3af>] nouveau_gpuobj_create_+0xaa/0x22a [nouveau] [ 16.678006] [<ffffffff810715e6>] ? trace_hardirqs_on_caller+0x121/0x158 [ 16.678006] [<ffffffffa027a366>] nouveau_engctx_create_+0xaf/0x199 [nouveau] [ 16.678006] [<ffffffffa029940a>] nv50_disp_data_ctor+0x8c/0xaf [nouveau] [ 16.678006] [<ffffffffa027db0d>] ? nouveau_subdev_reset+0x52/0x56 [nouveau] [ 16.678006] [<ffffffffa027c893>] nouveau_object_ctor+0x28/0x9c [nouveau] [ 16.678006] [<ffffffffa027d0a3>] nouveau_object_new+0x129/0x1fb [nouveau] [ 16.678006] [<ffffffffa02f2458>] nv50_display_create+0x158/0x7c4 [nouveau] [ 16.678006] [<ffffffff81045117>] ? __cancel_work_timer+0x81/0xaf [ 16.678006] [<ffffffff81045132>] ? __cancel_work_timer+0x9c/0xaf [ 16.678006] [<ffffffffa02e16b5>] nouveau_display_create+0x40a/0x466 [nouveau] [ 16.678006] [<ffffffffa02d4d7c>] nouveau_drm_load+0x245/0x4c0 [nouveau] [ 16.678006] [<ffffffff812d9092>] ? device_register+0x19/0x1e [ 16.678006] [<ffffffff812c5db0>] ? drm_get_minor+0x226/0x280 [ 16.678006] [<ffffffff812c7048>] drm_get_pci_dev+0x15a/0x265 [ 16.678006] [<ffffffff8123d7a0>] ? __pci_set_master+0x1f/0x67 [ 16.678006] [<ffffffffa02d47b5>] nouveau_drm_probe+0x1dd/0x201 [nouveau] [ 16.678006] [<ffffffff81240de3>] local_pci_probe+0x39/0x61 [ 16.678006] [<ffffffff81241ce5>] pci_device_probe+0x63/0x8d [ 16.678006] [<ffffffff812dae6e>] ? driver_sysfs_add+0x6b/0x90 [ 16.678006] [<ffffffff812db172>] driver_probe_device+0xab/0x1c4 [ 16.678006] [<ffffffff812db2d5>] __driver_attach+0x4a/0x6b [ 16.678006] [<ffffffff812db28b>] ? driver_probe_device+0x1c4/0x1c4 [ 16.678006] [<ffffffff812d9a0e>] bus_for_each_dev+0x57/0x84 [ 16.678006] [<ffffffff812dae01>] driver_attach+0x19/0x1b [ 16.678006] [<ffffffff812da8c4>] bus_add_driver+0xa8/0x1fa [ 16.678006] [<ffffffff812db7c5>] driver_register+0x8e/0x108 [ 16.678006] [<ffffffff81241df3>] __pci_register_driver+0x5f/0x64 [ 16.678006] [<ffffffff812c71d8>] drm_pci_init+0x85/0xea [ 16.678006] [<ffffffffa0335000>] ? 0xffffffffa0334fff [ 16.678006] [<ffffffffa0335000>] ? 0xffffffffa0334fff [ 16.678006] [<ffffffffa033504d>] nouveau_drm_init+0x4d/0x4f [nouveau] [ 16.678006] [<ffffffff81000232>] do_one_initcall+0x7a/0x130 [ 16.678006] [<ffffffff8107acd4>] load_module+0x168b/0x19c0 [ 16.678006] [<ffffffff8107863d>] ? free_notes_attrs+0x46/0x46 [ 16.678006] [<ffffffff8107b0b2>] sys_init_module+0xa9/0xab [ 16.678006] [<ffffffff8153ef96>] system_call_fastpath+0x1a/0x1f [ 16.776320] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [ 16.777184] [drm] No driver support for vblank timestamp query. [ 16.778029] nouveau [ DRM] ACPI backlight interface available, not registering our own

--- Denys Fedoryshchenko, Network Engineer, Virtual ISP S.A.L.