Comment # 6 on bug 1227266 from Takashi Iwai

Thanks for confirmation.  It's interesting that you could trigger the crash
even without i915 driver.  Maybe I didn't test long enough when I checked it.
The stack trace without i915 looked similar with what I got, too (but from
6.9.x and i915 enabled).

So, a crash pattern is a NULL dereference at the page allocation, mostly from
get_page_from_freelist() or such lower layer via various code paths.

Since it's happening with 6.9.x kernel, I suspect it's a recent upstream issue.

FWIW, I tested SLE15-SP5 kernel on the same system, and it didn't lead to a
crash.  (Though, I tested only shortly, might need to run for longer time for
verification.)