Re: i915 X lockup

[Andrew Morton]

On Sat, 28 Feb 2009 09:31:28 +0100 Jiri Slaby <jirislaby@xxxxxxxxx> wrote:

> On 28.2.2009 01:20, Eric Anholt wrote:
> > KMS support is not a feature of the server but of your 2D driver.  You
> > want 2.6.2, or things will be bad.
> 
> I have 2.5.0. After turning KMS off, problem seems to be solved.
> 
> Anyway, I would appreciate a version of the intel driver being in the 
> Kconfig text, otherwise it looks like: don't use this on machines with 
> installation from stone age. If one has latest stable release of a 
> distro, he doesn't even think he doesn't have "new enough userspace".
> 
> For reference, the text is:
> Choose this option if you want kernel modesetting enabled by default,
> and you have a new enough userspace to support this. Running old
> userspaces with this enabled will cause pain.

Hang on.

The kernel deadlocked on struct_mutex, did it not?  That's a kernel bug
regardless of what userspace you're running.

Do we know why this happened?
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