Nouveau - Jan 2013 - kernel driver prevents supend to disk since 3.7 series

Hello,
3.7.x kernels prevent my laptop with Optimus VGA from suspend to disk
with an PFIFO write fault in PCOPY0, see kernel log below.

During the 3.6.x upto 3.6.11 suspend worked without problems.
lspci -v info of the VGAs is attached.

What may I do to debug this further ?

Thanks for any help and greetings,
 Hermann

Jan 30 00:32:41 seba kernel: [   69.468486] nouveau  [     DRM] suspending
fbcon...
Jan 30 00:32:41 seba kernel: [   69.468488] nouveau  [     DRM] suspending
display...
Jan 30 00:32:41 seba kernel: [   69.468787] nouveau  [     DRM] unpinning
framebuffer(s)...
Jan 30 00:32:41 seba kernel: [   69.468852] nouveau  [     DRM] evicting
buffers...
Jan 30 00:32:41 seba kernel: [   69.469358] nouveau  [     DRM] suspending
client object trees...
Jan 30 00:32:41 seba kernel: [   69.469430] nouveau E[   PFIFO][0000:01:00.0]
write fault at 0x0000000000 [PAGE_NOT_PRESENT] from PCOPY0/PCOPY0 on channel
0x003fe1b000
Jan 30 00:32:41 seba kernel: [   69.640461] e1000e 0000:00:19.0: wake-up
capability enabled by ACPI
Jan 30 00:32:41 seba kernel: [   71.464832] nouveau E[   PFIFO][0000:01:00.0]
channel 0 kick timeout
Jan 30 00:32:41 seba kernel: [   71.464834] nouveau E[  
PFIFO][0000:01:00.0][0xc000906f][ffff88011b8a7480] failed to detach PCE0
context, -16
Jan 30 00:32:41 seba kernel: [   71.464836] nouveau E[   
PCE0][0000:01:00.0][0x0300c01b][ffff88012b6198c0] failed suspend, -16
Jan 30 00:32:41 seba kernel: [   71.464838] nouveau W[   
PCE0][0000:01:00.0][0x000090b5][ffff88011ca6dda0] parent failed suspend, -16
Jan 30 00:32:41 seba kernel: [   71.464867] nouveau E[     DRM]
0xcccc0000:0x000490b5 suspend failed with -16
Jan 30 00:32:41 seba kernel: [   71.464869] nouveau E[     DRM]
0xdddddddd:0xcccc0000 suspend failed with -16
Jan 30 00:32:41 seba kernel: [   71.464871] nouveau E[     DRM]
0xffffffff:0xdddddddd suspend failed with -16
Jan 30 00:32:41 seba kernel: [   71.464873] nouveau E[     DRM]
0xffffffff:0xffffffff suspend failed with -16
Jan 30 00:32:41 seba kernel: [   71.464874] nouveau  [     DRM] resuming
display...
Jan 30 00:32:41 seba kernel: [   71.766925] pci_legacy_suspend():
nouveau_drm_suspend+0x0/0x219 [nouveau] returns -16
Jan 30 00:32:41 seba kernel: [   71.766942] dpm_run_callback():
pci_pm_freeze+0x0/0x85 returns -16
Jan 30 00:32:41 seba kernel: [   71.766944] PM: Device 0000:01:00.0 failed to
freeze async: error -16

01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [Quadro NVS 4200M]
(rev a1) (prog-if 00 [VGA controller])
	Subsystem: Lenovo Device 21d1
	Flags: bus master, fast devsel, latency 0, IRQ 16
	Memory at f0000000 (32-bit, non-prefetchable) [size=16M]
	Memory at c0000000 (64-bit, prefetchable) [size=256M]
	Memory at d0000000 (64-bit, prefetchable) [size=32M]
	I/O ports at 5000 [size=128]
	Expansion ROM at f1000000 [disabled] [size=512K]
	Capabilities: [60] Power Management version 3
	Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
	Capabilities: [78] Express Endpoint, MSI 00
	Capabilities: [b4] Vendor Specific Information: Len=14 <?>
	Capabilities: [100] Virtual Channel
	Capabilities: [128] Power Budgeting <?>
	Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024
<?>
	Kernel driver in use: nouveau

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA
controller])
	Subsystem: Lenovo Device 21d1
	Flags: bus master, fast devsel, latency 0, IRQ 45
	Memory at f1400000 (64-bit, non-prefetchable) [size=4M]
	Memory at e0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at 6000 [size=64]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
	Capabilities: [d0] Power Management version 2
	Capabilities: [a4] PCI Advanced Features
	Kernel driver in use: i915
-- 
Netzwerkadministration/Zentrale Dienste, Interdiziplinaeres 
Zentrum fuer wissenschaftliches Rechnen der Universitaet Heidelberg
IWR; INF 368; 69120 Heidelberg; Tel: (06221)54-8236 Fax: -5224
Email: Hermann.Lauer at iwr.uni-heidelberg.de

On Wed, Jan 30, 2013 at 09:25:17AM +0100, Hermann Lauer
wrote:
> Hello,
> 3.7.x kernels prevent my laptop with Optimus VGA from suspend to disk
> with an PFIFO write fault in PCOPY0, see kernel log below.
> 
> During the 3.6.x upto 3.6.11 suspend worked without problems.
> lspci -v info of the VGAs is attached.
> 
> What may I do to debug this further ?
You can try the latest 3.8-rc kernel and if you still won't be able to
suspend,
bisecting is the most useful thing you can do (google "git bisect" if
you
don't know how).

Marcin