[Nouveau] Nvidia recent drivers

[Peter Wu]

Hi Lukas,

On Sat, Jan 28, 2017 at 07:58:32AM +0100, Lukas Wunner wrote:
> On Fri, Jan 27, 2017 at 04:06:38PM +0100, Peter Wu wrote:
> > Also note that many laptops with these card suffer from a problem
> > that cause lockups when runpm kicks in.
> > See https://bugzilla.kernel.org/show_bug.cgi?id=156341
> 
> Peter, I notice you weren't cc'ed on the last few messages of the
> 'PCI: Revert "PCI: Add runtime PM support for PCIe ports"' thread,
> the similar bug https://bugzilla.kernel.org/show_bug.cgi?id=190861
> turned out to be caused by locking issues in nouveau which were
> fixed with 3846fd9b8600 in Linus' tree.  That commit swiftly got
> reverted because it lacked prerequisites, and replaced by the
> temporary fix cae9ff036eea + 15266ae38fe0.  These two will be
> reverted in 4.11 and replaced with the proper solution (which was
> 3846fd9b8600).  Long story short, the issue seems solved, the revert
> of PCIe port PM is dequeued.  Perhaps this also fixes the issues in
> the bugzilla entry you mentioned above, at least for some laptops?

Thanks for following up, but I am afraid it won't help since the other
problem is in ACPI or PCI while this fixes a locking problem (in 4.10,
current stable 4.9 was unaffected).

FYI, the fbcon patch mentioned above will also (temporary)
Related to the fbcon patch, there was an attempt to do something similar
last year, also due to locking issues (with console_lock):
https://lists.freedesktop.org/archives/dri-devel/2016-July/113087.html
The 15266ae38fe0 patch will probably fix that for the moment, but when
reverting it the problem returns.
-- 
Kind regards,
Peter Wu
https://lekensteyn.nl