[Intel-gfx] PROBLEM: i915 causes complete desktop freezes in 4.15-rc5

[Chris Wilson]

Quoting Alexandru Chirvasitu (2018-01-05 19:58:42)
> OK, I then plan to try with the previous config, plus these
> modifications:
> 
> CONFIG_PAGE_POISONING not set
> CONFIG_SLUB_STATS=y
> 
> I'm a little puzzled about this:

[snip]

> > It would be CONFIG_SLUB_STATS and then you would a
> > /sys/kernel/slab/i915_dependency/ directory with all the details of the
> > slab, and in particular a poison file showing the status (and allowing
> > it to modified) of slab poisoning
> > 
> > Ok, it looks like poisoning is only available if CONFIG_SLUB_DEBUG is
> > set. Since it is not set, don't worry about it ;)
> 
> I actually do have SLUB_DEBUG set to 'y' in the kernel whose dmesg I
> last sent you.

Ah, ok. I was looking at the config attached the first mail. Turn off
SLUB_DEBUG for now to give ourselves the best chance at getting
something from kasan. I hope it's worth the effort...
-Chris