[Bug 61041] [ilk BISECTED]i915 driver triggers low memory corruption 1 minute after boot-up

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=61041

H. Peter Anvin <hpa at zytor.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |CLOSED
         Resolution|---                         |INVALID

--- Comment #6 from H. Peter Anvin <hpa at zytor.com> ---
The bisection is bogus, simply because all it does is it makes the detector
actually works as advertised.  Without the patch, the detector actually misses
large swaths of memory, typically at least all memory below 64K (which includes
your corruption address.)

Either way, there isn't anything to actually *do* here... the BIOS clobbers
memory that we normally reserve for exactly the reason that BIOS has a nasty
tendency to scribble on low memory.  The only thing that is happening is that
you have enabled the detector that tells you that did indeed happen.

This is probably something you want to fix in your kernel configuration:

[    0.000000] smpboot: 8 Processors exceeds NR_CPUS limit of 4

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