[drm/i915: Do not store the error pointer for a failed userptr registration] Candidate for stable tree?

[drm/i915: Do not store the error pointer for a failed userptr registration] Candidate for stable tree?

[Peter Weber]

Hello!

Is the patch[0] mentioned in the subject a possible candidate for the next
release of the stable kernel, at time of writing "3.17.3"? It looks like,
this is
causing serious problems and we are currently discussing this on the
bugtracker of
Archlinux[1].

I'm not sure if I'm personally affected. I suffered unexpected freezes
since 3.17-rc4 on my machine, at least STDIO and STDOUT are frozen. Maybe
the
reaction differs based on the kernel options (see changed behaviour
through
CONFIG_PREEMPT_VOLUNTARY=y). In my case, I don't see a null pointer in my
log
files.

I hope this doesn't offend against the stable kernel rules.

[0]
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9681366ea9e76ab8f75e84351f2f3ca63ee542c
# commit id is: e9681366ea9e76ab8f75e84351f2f3ca63ee542c
# already send to stable@vger.kernel.org, but not included in current
stable "3.17.2"
[1] https://bugs.archlinux.org/task/42353

Thank you
Peter

Re: [drm/i915: Do not store the error pointer for a failed userptr registration] Candidate for stable tree?

[Greg KH]

On Fri, Oct 31, 2014 at 04:41:02PM +0100, Peter Weber wrote:
> Hello!
> 
> Is the patch[0] mentioned in the subject a possible candidate for the next
> release of the stable kernel, at time of writing "3.17.3"? It looks like,
> this is
> causing serious problems and we are currently discussing this on the
> bugtracker of
> Archlinux[1].
> 
> I'm not sure if I'm personally affected. I suffered unexpected freezes
> since 3.17-rc4 on my machine, at least STDIO and STDOUT are frozen. Maybe
> the
> reaction differs based on the kernel options (see changed behaviour
> through
> CONFIG_PREEMPT_VOLUNTARY=y). In my case, I don't see a null pointer in my
> log
> files.
> 
> I hope this doesn't offend against the stable kernel rules.
> 
> [0]
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9681366ea9e76ab8f75e84351f2f3ca63ee542c
> # commit id is: e9681366ea9e76ab8f75e84351f2f3ca63ee542c
> # already send to stable@vger.kernel.org, but not included in current
> stable "3.17.2"
> [1] https://bugs.archlinux.org/task/42353

It's now queued up, sorry, the backlog is really long right now :(