drm/nouveau: NULL pointer deref in drm_handle_vblank() on rebind

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



I can easily trigger a crash in nouveau interrupt handler by unbinding
and rebinding the GPU.

The command used:
  echo $pci_device > nouveau/unbind && \
	sleep 5 && \
	echo $pci_device > nouveau/bind


Kernel is 3.4.0 with modular drm/nouveau.
GPU is NVidia nForce IGP (NV11)


Unbinding seems to work fine, display switching back to VGA text mode.
Rebinding the GPU slightly later causes the below trace:

Bruno

(analysis following below trace)

[ 1432.012832] Console: switching to colour VGA+ 80x25
[ 1432.014796] drm: unregistered panic notifier
[ 1432.014905] [drm] nouveau 0000:02:00.0: Setting dpms mode 3 on vga encoder (output 0)
[ 1432.026324] [drm] nouveau 0000:02:00.0: 0xAFD8: Parsing digital output script table
[ 1432.026611] [drm] nouveau 0000:02:00.0: Restoring VGA fonts
[ 1432.028353] [TTM] Finalizing pool allocator
[ 1432.029325] [TTM] Zone  kernel: Used memory at exit: 0 kiB
[ 1437.066950] [drm] nouveau 0000:02:00.0: Detected an NV10 generation card (0x01a000b1)
[ 1437.068909] [drm] nouveau 0000:02:00.0: Checking PRAMIN for VBIOS
[ 1437.103400] [drm] nouveau 0000:02:00.0: ... BIOS checksum invalid
[ 1437.103459] [drm] nouveau 0000:02:00.0: Checking PROM for VBIOS
[ 1437.103638] [drm] nouveau 0000:02:00.0: ... BIOS checksum invalid
[ 1437.103694] [drm] nouveau 0000:02:00.0: Checking ACPI for VBIOS
[ 1437.103859] [drm] nouveau 0000:02:00.0: ... BIOS checksum invalid
[ 1437.103915] [drm] nouveau 0000:02:00.0: Checking PCIROM for VBIOS
[ 1437.105143] [drm] nouveau 0000:02:00.0: ... appears to be valid
[ 1437.105217] [drm] nouveau 0000:02:00.0: Using VBIOS from PCIROM
[ 1437.105507] [drm] nouveau 0000:02:00.0: BMP BIOS found
[ 1437.105562] [drm] nouveau 0000:02:00.0: BMP version 5.20
[ 1437.105624] [drm] nouveau 0000:02:00.0: Bios version 03.1a.01.03
[ 1437.107663] [drm] nouveau 0000:02:00.0: MXM: no VBIOS data, nothing to do
[ 1437.109053] [drm] nouveau 0000:02:00.0: Parsing VBIOS init table 0 at offset 0xA850
[ 1437.109120] [drm] nouveau 0000:02:00.0: Parsing VBIOS init table 1 at offset 0xADC5
[ 1437.109197] [drm] nouveau 0000:02:00.0: Parsing VBIOS init table 2 at offset 0xA851
[ 1437.109268] [drm] nouveau 0000:02:00.0: Parsing VBIOS init table 3 at offset 0xADC4
[ 1437.109337] [drm] nouveau 0000:02:00.0: Parsing VBIOS init table 4 at offset 0xA875
[ 1437.109405] [drm] nouveau 0000:02:00.0: Parsing VBIOS init table 5 at offset 0xA931
[ 1437.109494] [drm] nouveau 0000:02:00.0: Parsing VBIOS init table 6 at offset 0xA876
[ 1437.109572] [drm] nouveau 0000:02:00.0: Parsing VBIOS init table 7 at offset 0xA8CC
[ 1437.109985] [TTM] Zone  kernel: Available graphics memory: 240004 kiB
[ 1437.110079] [TTM] Initializing pool allocator
[ 1437.110177] [drm] nouveau 0000:02:00.0: Detected 32MiB VRAM (unknown type)
[ 1437.110424] agpgart-nvidia 0000:00:00.0: AGP 2.0 bridge
[ 1437.110566] agpgart-nvidia 0000:00:00.0: putting AGP V2 device into 4x mode
[ 1437.110717] nouveau 0000:02:00.0: putting AGP V2 device into 4x mode
[ 1437.110783] agpgart-nvidia 0000:00:00.0: AGP 2.0 bridge
[ 1437.110865] agpgart-nvidia 0000:00:00.0: putting AGP V2 device into 4x mode
[ 1437.111010] nouveau 0000:02:00.0: putting AGP V2 device into 4x mode
[ 1437.111070] [drm] nouveau 0000:02:00.0: 32 MiB GART (aperture)
[ 1437.111233] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111298] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111363] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111427] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111489] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111551] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111613] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111676] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111737] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111800] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111862] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111924] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.111986] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.112048] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.112110] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.112172] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.112233] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.112296] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.112357] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.112420] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[ 1437.112577] [drm] nouveau 0000:02:00.0: Saving VGA fonts
[ 1437.175978] BUG: unable to handle kernel NULL pointer dereference at   (null)
[ 1437.176134] IP: [<c1272dfc>] drm_handle_vblank+0x3c/0x1d0
[ 1437.176314] *pde = 00000000 
[ 1437.176403] Oops: 0000 [#1] 
[ 1437.176491] Modules linked in: nouveau ttm drm_kms_helper cfbcopyarea mxm_wmi wmi cfbimgblt cfbfillrect nfs lockd nfs_acl sunrpc
[ 1437.177120] 
[ 1437.177170] Pid: 1573, comm: bash Not tainted 3.4.0-jupiter-00007-g3b608b6-dirty #9 NVIDIA Corporation. nFORCE-MCP/MS-6373
[ 1437.177440] EIP: 0060:[<c1272dfc>] EFLAGS: 00010056 CPU: 0
[ 1437.177495] EIP is at drm_handle_vblank+0x3c/0x1d0
[ 1437.177549] EAX: 00000000 EBX: dbfe2cb0 ECX: 00000001 EDX: 00000000
[ 1437.177604] ESI: dbfe2cb0 EDI: feffffff EBP: dd40bf6c ESP: dd40bf18
[ 1437.177660]  DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
[ 1437.177714] CR0: 8005003b CR2: 00000000 CR3: 1cd25000 CR4: 000007d0
[ 1437.177770] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 1437.177825] DR6: ffff0ff0 DR7: 00000400
[ 1437.177878] Process bash (pid: 1573, ti=dd40a000 task=dcdd9090 task.ti=dcd48000)
[ 1437.177940] Stack:
[ 1437.177987]  00000000 00000051 00000003 205b0028 dbd38cf0 00000000 c1022340 dd40bf78
[ 1437.178344]  00000000 dbd38cf0 00000000 dbfe2cb0 00000000 00000002 dd40bf78 dfa00100
[ 1437.178819]  00000002 0000007b dbfe2cb0 00000018 feffffff dd40bf78 de9da248 00000000
[ 1437.179183] Call Trace:
[ 1437.179241]  [<c1022340>] ? vmalloc_sync_all+0x130/0x130
[ 1437.179356]  [<de9da248>] nv04_vblank_crtc0_isr+0x28/0x30 [nouveau]
[ 1437.179427]  [<de971204>] nouveau_irq_handler+0x64/0x100 [nouveau]
[ 1437.179490]  [<c10721d0>] ? unmask_irq+0x20/0x20
[ 1437.179545]  [<c106ff34>] handle_irq_event_percpu+0x54/0x1f0
[ 1437.179602]  [<c10721d0>] ? unmask_irq+0x20/0x20
[ 1437.179656]  [<c10700f8>] handle_irq_event+0x28/0x40
[ 1437.179711]  [<c107222b>] handle_fasteoi_irq+0x5b/0xf0
[ 1437.179763]  <IRQ> 
[ 1437.179851]  [<c1003f9a>] ? do_IRQ+0x3a/0xb0
[ 1437.179911]  [<c14053b0>] ? common_interrupt+0x30/0x38
[ 1437.179969]  [<c10c0adc>] ? __slab_alloc.clone.68+0x4c/0x3e0
[ 1437.180005]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[ 1437.180005]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[ 1437.180005]  [<c14053b0>] ? common_interrupt+0x30/0x38
[ 1437.180005]  [<c10c1a5d>] ? __kmalloc+0x15d/0x1f0
[ 1437.180005]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[ 1437.180005]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[ 1437.180005]  [<de98e36f>] ? nouveau_display_create+0x43f/0x4e0 [nouveau]
[ 1437.180005]  [<de96af7c>] ? nouveau_card_init+0x16ac/0x1a70 [nouveau]
[ 1437.180005]  [<de969770>] ? nouveau_card_channel_fini+0x20/0x20 [nouveau]
[ 1437.180005]  [<de96b86e>] ? nouveau_load+0x3fe/0x830 [nouveau]
[ 1437.180005]  [<c1276305>] ? drm_get_pci_dev+0x135/0x260
[ 1437.180005]  [<de9f6b79>] ? nouveau_pci_probe+0xd/0xf [nouveau]
[ 1437.180005]  [<c11f70a1>] ? local_pci_probe+0x41/0xb0
[ 1437.180005]  [<c11f7560>] ? pci_device_probe+0x60/0x80
[ 1437.180005]  [<c128ec25>] ? driver_probe_device+0x75/0x1d0
[ 1437.180005]  [<c11f6f8a>] ? pci_match_device+0x9a/0xa0
[ 1437.180005]  [<c128db87>] ? driver_bind+0x97/0xe0
[ 1437.180005]  [<c128daf0>] ? driver_unbind+0x90/0x90
[ 1437.180005]  [<c128d217>] ? drv_attr_store+0x27/0x30
[ 1437.180005]  [<c1117a59>] ? sysfs_write_file+0x99/0x100
[ 1437.180005]  [<c10c95ea>] ? vfs_write+0x9a/0x140
[ 1437.180005]  [<c10d6a90>] ? sys_dup3+0xf0/0x150
[ 1437.180005]  [<c10d6f8c>] ? do_fcntl+0x36c/0x4a0
[ 1437.180005]  [<c11179c0>] ? sysfs_poll+0x90/0x90
[ 1437.180005]  [<c10c986d>] ? sys_write+0x3d/0x70
[ 1437.180005]  [<c1404e97>] ? sysenter_do_call+0x12/0x26
[ 1437.180005] Code: 00 00 89 55 cc 85 c9 0f 84 4d 01 00 00 9c 8f 45 e0 fa 89 e0 25 00 e0 ff ff ff 40 14 c1 e2 02 8b 86 58 01 00 00 89 55 dc 8b 55 cc <8b> 04 90 85 c0 0f 84 31 01 00 00 8b 45 dc 03 86 48 01 00 00 


According to objdump that would match:

bool drm_handle_vblank(struct drm_device *dev, int crtc)
{
        u32 vblcount;
        s64 diff_ns;
        struct timeval tvblank;
        unsigned long irqflags;

        if (!dev->num_crtcs)
                return false;

        /* Need timestamp lock to prevent concurrent execution with
         * vblank enable/disable, as this would cause inconsistent
         * or corrupted timestamps and vblank counts.
         */
        spin_lock_irqsave(&dev->vblank_time_lock, irqflags);

        /* Vblank irq handling disabled. Nothing to do. */
        if (!dev->vblank_enabled[crtc]) {
                spin_unlock_irqrestore(&dev->vblank_time_lock, irqflags);
                return false;
        }



        /* Vblank irq handling disabled. Nothing to do. */
        if (!dev->vblank_enabled[crtc]) {
    1e1d:       c1 e2 02                shl    $0x2,%edx
    1e20:       8b 86 58 01 00 00       mov    0x158(%esi),%eax
    1e26:       89 55 dc                mov    %edx,-0x24(%ebp)
    1e29:       8b 55 cc                mov    -0x34(%ebp),%edx
>>> 1e2c:       8b 04 90                mov    (%eax,%edx,4),%eax
    1e2f:       85 c0                   test   %eax,%eax
    1e31:       0f 84 31 01 00 00       je     1f68 <drm_handle_vblank+0x178>

That means that dev->vblank_enabled is not initialized yet while IRQs are
already triggering?

I check the assumption that dev->vblank_enabled is NULL by first testing
it before trying to access [crtc] and firing a WARN_ON which indicates that
it happens 3 times untile probing of GPU completes:

[  149.017679] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[  149.017741] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[  149.017803] [drm] nouveau 0000:02:00.0: PMC - unhandled INTR 0x01000000
[  149.017956] [drm] nouveau 0000:02:00.0: Saving VGA fonts
[  149.082726] ------------[ cut here ]------------
[  149.082817] WARNING: at /usr/src/linux-git/drivers/gpu/drm/drm_irq.c:1302 drm_handle_vblank+0x1e2/0x1f0()
[  149.082884] Hardware name: nFORCE-MCP
[  149.082937] Modules linked in: nouveau ttm cfbcopyarea mxm_wmi wmi cfbimgblt cfbfillrect drm_kms_helper nfs lockd nfs_acl sunrpc
[  149.083669] Pid: 1564, comm: bash Not tainted 3.4.0-jupiter-00007-g3b608b6-dirty #10
[  149.083733] Call Trace:
[  149.083791]  [<c102a53d>] warn_slowpath_common+0x6d/0xa0
[  149.083849]  [<c1272fa2>] ? drm_handle_vblank+0x1e2/0x1f0
[  149.083906]  [<c1272fa2>] ? drm_handle_vblank+0x1e2/0x1f0
[  149.083963]  [<c102a58d>] warn_slowpath_null+0x1d/0x20
[  149.084018]  [<c1272fa2>] drm_handle_vblank+0x1e2/0x1f0
[  149.084078]  [<c1022340>] ? vmalloc_sync_all+0x130/0x130
[  149.084139]  [<c1404c29>] ? error_code+0x65/0x6c
[  149.084198]  [<c10721d0>] ? unmask_irq+0x20/0x20
[  149.084308]  [<de9c9248>] nv04_vblank_crtc0_isr+0x28/0x30 [nouveau]
[  149.084378]  [<de960204>] nouveau_irq_handler+0x64/0x100 [nouveau]
[  149.084459]  [<c10721d0>] ? unmask_irq+0x20/0x20
[  149.084598]  [<c106ff34>] handle_irq_event_percpu+0x54/0x1f0
[  149.084654]  [<c10721d0>] ? unmask_irq+0x20/0x20
[  149.084708]  [<c10700f8>] handle_irq_event+0x28/0x40
[  149.084763]  [<c107222b>] handle_fasteoi_irq+0x5b/0xf0
[  149.084815]  <IRQ>  [<c1003f9a>] ? do_IRQ+0x3a/0xb0
[  149.084912]  [<c14053b0>] ? common_interrupt+0x30/0x38
[  149.084968]  [<c10c0adc>] ? __slab_alloc.clone.68+0x4c/0x3e0
[  149.085024]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[  149.085078]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[  149.085136]  [<c103055c>] ? irq_exit+0x5c/0xa0
[  149.085189]  [<c1003fa3>] ? do_IRQ+0x43/0xb0
[  149.085242]  [<c14053b0>] ? common_interrupt+0x30/0x38
[  149.085296]  [<c10c1a5d>] ? __kmalloc+0x15d/0x1f0
[  149.085350]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[  149.085405]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[  149.085475]  [<de97d36f>] ? nouveau_display_create+0x43f/0x4e0 [nouveau]
[  149.085544]  [<de959f7c>] ? nouveau_card_init+0x16ac/0x1a70 [nouveau]
[  149.085612]  [<de958770>] ? nouveau_card_channel_fini+0x20/0x20 [nouveau]
[  149.085680]  [<de95a86e>] ? nouveau_load+0x3fe/0x830 [nouveau]
[  149.085737]  [<c1276325>] ? drm_get_pci_dev+0x135/0x260
[  149.085808]  [<de9e5b79>] ? nouveau_pci_probe+0xd/0xf [nouveau]
[  149.085869]  [<c11f70a1>] ? local_pci_probe+0x41/0xb0
[  149.085924]  [<c11f7560>] ? pci_device_probe+0x60/0x80
[  149.085992]  [<c128ec45>] ? driver_probe_device+0x75/0x1d0
[  149.086047]  [<c11f6f8a>] ? pci_match_device+0x9a/0xa0
[  149.086223]  [<c128dba7>] ? driver_bind+0x97/0xe0
[  149.086278]  [<c128db10>] ? driver_unbind+0x90/0x90
[  149.086333]  [<c128d237>] ? drv_attr_store+0x27/0x30
[  149.087347]  [<c1117a59>] ? sysfs_write_file+0x99/0x100
[  149.087404]  [<c10c95ea>] ? vfs_write+0x9a/0x140
[  149.087461]  [<c10d6a90>] ? sys_dup3+0xf0/0x150
[  149.087515]  [<c10d6f8c>] ? do_fcntl+0x36c/0x4a0
[  149.087567]  [<c11179c0>] ? sysfs_poll+0x90/0x90
[  149.087621]  [<c10c986d>] ? sys_write+0x3d/0x70
[  149.087675]  [<c1404e97>] ? sysenter_do_call+0x12/0x26
[  149.087729] ---[ end trace 5d73f7bccc0ebc64 ]---
[  149.087802] ------------[ cut here ]------------
[  149.087888] WARNING: at /usr/src/linux-git/drivers/gpu/drm/drm_irq.c:1302 drm_handle_vblank+0x1e2/0x1f0()
[  149.087953] Hardware name: nFORCE-MCP
[  149.088002] Modules linked in: nouveau ttm cfbcopyarea mxm_wmi wmi cfbimgblt cfbfillrect drm_kms_helper nfs lockd nfs_acl sunrpc
[  149.088543] Pid: 1564, comm: bash Tainted: G        W    3.4.0-jupiter-00007-g3b608b6-dirty #10
[  149.088606] Call Trace:
[  149.088656]  [<c102a53d>] warn_slowpath_common+0x6d/0xa0
[  149.088710]  [<c1272fa2>] ? drm_handle_vblank+0x1e2/0x1f0
[  149.088765]  [<c1272fa2>] ? drm_handle_vblank+0x1e2/0x1f0
[  149.088819]  [<c102a58d>] warn_slowpath_null+0x1d/0x20
[  149.088874]  [<c1272fa2>] drm_handle_vblank+0x1e2/0x1f0
[  149.088928]  [<c1022340>] ? vmalloc_sync_all+0x130/0x130
[  149.088983]  [<c1404c29>] ? error_code+0x65/0x6c
[  149.089036]  [<c10721d0>] ? unmask_irq+0x20/0x20
[  149.089110]  [<de9c9248>] nv04_vblank_crtc0_isr+0x28/0x30 [nouveau]
[  149.089178]  [<de960204>] nouveau_irq_handler+0x64/0x100 [nouveau]
[  149.089234]  [<c10721d0>] ? unmask_irq+0x20/0x20
[  149.089287]  [<c106ff34>] handle_irq_event_percpu+0x54/0x1f0
[  149.089342]  [<c10721d0>] ? unmask_irq+0x20/0x20
[  149.089395]  [<c10700f8>] handle_irq_event+0x28/0x40
[  149.089449]  [<c107222b>] handle_fasteoi_irq+0x5b/0xf0
[  149.089500]  <IRQ>  [<c1003f9a>] ? do_IRQ+0x3a/0xb0
[  149.089593]  [<c14053b0>] ? common_interrupt+0x30/0x38
[  149.089651]  [<c12d7687>] ? nv_napi_poll+0xe7/0x590
[  149.089705]  [<c103055c>] ? irq_exit+0x5c/0xa0
[  149.089757]  [<c1003fa3>] ? do_IRQ+0x43/0xb0
[  149.089832]  [<c137cf2c>] ? __qdisc_run+0x4c/0x110
[  149.089889]  [<c1368328>] ? net_rx_action+0xd8/0x1b0
[  149.089943]  [<c1030275>] ? __do_softirq+0x85/0x1a0
[  149.089997]  [<c10301f0>] ? local_bh_enable_ip+0x80/0x80
[  149.090010]  <IRQ>  [<c1030576>] ? irq_exit+0x76/0xa0
[  149.090010]  [<c1003fa3>] ? do_IRQ+0x43/0xb0
[  149.090010]  [<c14053b0>] ? common_interrupt+0x30/0x38
[  149.090010]  [<c10c0adc>] ? __slab_alloc.clone.68+0x4c/0x3e0
[  149.090010]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[  149.090010]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[  149.090010]  [<c103055c>] ? irq_exit+0x5c/0xa0
[  149.090010]  [<c1003fa3>] ? do_IRQ+0x43/0xb0
[  149.090010]  [<c14053b0>] ? common_interrupt+0x30/0x38
[  149.090010]  [<c10c1a5d>] ? __kmalloc+0x15d/0x1f0
[  149.090010]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[  149.090010]  [<c1271e83>] ? drm_vblank_init+0x43/0x1d0
[  149.090010]  [<de97d36f>] ? nouveau_display_create+0x43f/0x4e0 [nouveau]
[  149.090010]  [<de959f7c>] ? nouveau_card_init+0x16ac/0x1a70 [nouveau]
[  149.090010]  [<de958770>] ? nouveau_card_channel_fini+0x20/0x20 [nouveau]
[  149.090010]  [<de95a86e>] ? nouveau_load+0x3fe/0x830 [nouveau]
[  149.090010]  [<c1276325>] ? drm_get_pci_dev+0x135/0x260
[  149.090010]  [<de9e5b79>] ? nouveau_pci_probe+0xd/0xf [nouveau]
[  149.090010]  [<c11f70a1>] ? local_pci_probe+0x41/0xb0
[  149.090010]  [<c11f7560>] ? pci_device_probe+0x60/0x80
[  149.090010]  [<c128ec45>] ? driver_probe_device+0x75/0x1d0
[  149.090010]  [<c11f6f8a>] ? pci_match_device+0x9a/0xa0
[  149.090010]  [<c128dba7>] ? driver_bind+0x97/0xe0
[  149.090010]  [<c128db10>] ? driver_unbind+0x90/0x90
[  149.090010]  [<c128d237>] ? drv_attr_store+0x27/0x30
[  149.090010]  [<c1117a59>] ? sysfs_write_file+0x99/0x100
[  149.090010]  [<c10c95ea>] ? vfs_write+0x9a/0x140
[  149.090010]  [<c10d6a90>] ? sys_dup3+0xf0/0x150
[  149.090010]  [<c10d6f8c>] ? do_fcntl+0x36c/0x4a0
[  149.090010]  [<c11179c0>] ? sysfs_poll+0x90/0x90
[  149.090010]  [<c10c986d>] ? sys_write+0x3d/0x70
[  149.090010]  [<c1404e97>] ? sysenter_do_call+0x12/0x26
[  149.090010] ---[ end trace 5d73f7bccc0ebc65 ]---
[  149.097648] ------------[ cut here ]------------
[  149.097726] WARNING: at /usr/src/linux-git/drivers/gpu/drm/drm_irq.c:1302 drm_handle_vblank+0x1e2/0x1f0()
[  149.097793] Hardware name: nFORCE-MCP
[  149.097842] Modules linked in: nouveau ttm cfbcopyarea mxm_wmi wmi cfbimgblt cfbfillrect drm_kms_helper nfs lockd nfs_acl sunrpc
[  149.098398] Pid: 1835, comm: syslog-ng Tainted: G        W    3.4.0-jupiter-00007-g3b608b6-dirty #10
[  149.098463] Call Trace:
[  149.098519]  [<c102a53d>] warn_slowpath_common+0x6d/0xa0
[  149.098575]  [<c1272fa2>] ? drm_handle_vblank+0x1e2/0x1f0
[  149.098632]  [<c1272fa2>] ? drm_handle_vblank+0x1e2/0x1f0
[  149.098686]  [<c102a58d>] warn_slowpath_null+0x1d/0x20
[  149.098741]  [<c1272fa2>] drm_handle_vblank+0x1e2/0x1f0
[  149.098800]  [<c1022340>] ? vmalloc_sync_all+0x130/0x130
[  149.098860]  [<c1404c29>] ? error_code+0x65/0x6c
[  149.098973]  [<de9c9248>] nv04_vblank_crtc0_isr+0x28/0x30 [nouveau]
[  149.099042]  [<de960204>] nouveau_irq_handler+0x64/0x100 [nouveau]
[  149.099103]  [<c106ff34>] handle_irq_event_percpu+0x54/0x1f0
[  149.099158]  [<c10700f8>] handle_irq_event+0x28/0x40
[  149.099214]  [<c107222b>] handle_fasteoi_irq+0x5b/0xf0
[  149.099271]  [<c1004176>] handle_irq+0x56/0xe0
[  149.099323]  [<c1003f9a>] do_IRQ+0x3a/0xb0
[  149.099380]  [<c10c986d>] ? sys_write+0x3d/0x70
[  149.099435]  [<c14053b0>] common_interrupt+0x30/0x38
[  149.099488] ---[ end trace 5d73f7bccc0ebc66 ]---
[  149.100069] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[  149.100130] [drm] No driver support for vblank timestamp query.
[  149.100224] [drm] nouveau 0000:02:00.0: 0 available performance level(s)
[  149.100284] [drm] nouveau 0000:02:00.0: c: core 174MHz memory 0MHz
[  149.102004] [drm] nouveau 0000:02:00.0: 0xAFD8: Parsing digital output script table
[  149.102299] [drm] nouveau 0000:02:00.0: Setting dpms mode 3 on vga encoder (output 0)
[  149.102365] [drm] nouveau 0000:02:00.0: Setting dpms mode 3 on tmds encoder (output 1)
[  149.297232] [drm] nouveau 0000:02:00.0: Load detected on head A
[  149.305870] [drm] Got external EDID base block and 0 extensions from "edid/iiyama-ProLite_E431.bin" for connector "DVI-I-2"
[  149.307904] [drm] nouveau 0000:02:00.0: allocated 1280x1024 fb: 0x45000, bo dcea6000
[  149.308177] fbcon: New framebuffer notification for fb0
[  149.308233] fbcon: nouveaufb (fb0) is primary device
[  149.308294] fbcon: info_fb unset...
[  149.319739] [drm] nouveau 0000:02:00.0: Setting dpms mode 0 on vga encoder (output 0)
[  149.319746] [drm] nouveau 0000:02:00.0: Output DVI-I-2 is running on CRTC 0 using output A
[  149.325136] Console: switching to colour frame buffer device 160x64
[  149.327824] fbcon: info_fb set, takeover = 0...
[  149.327851] fbcon: info is dcd3b4d0, info_fb is dcd3b4d0, con2fb_map[0] = dcd3b4d0, con2fb_map_boot[0] = 0
[  149.327901] fb0: nouveaufb frame buffer device
[  149.327930] drm: registered panic notifier
[  149.327967] [drm] Initialized nouveau 1.0.0 20120316 for 0000:02:00.0 on minor 0
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/dri-devel


[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux