Bug#693762: linux-image-3.2.0-4-amd64: General Protection Fault

[Neal Murphy <neal.p.murphy@alum.wpi.edu>]

On Tuesday, November 20, 2012 08:01:40 AM Ben Hutchings wrote:
> RCX: f7ffc9000052c1d8
> 
> Current 64-bit x86 processors really only use 48-bit virtual addresses,
> which must begin with 0000 or ffff.  So this address seems to have been
> corrupted: a single bit has changed.
> 
> This could be caused by a software bug but it looks much more like a
> hardware fault.  You may be able to confirm a RAM fault with
> memtest86+.  Unfortunately it doesn't reliably find faults, and it
> doesn't particularly stress the CPU or other parts of the system that
> could also be at fault.

Ran memtst+ for 6 hours on the two 4GiB sticks. It found two problems.

Tst  Pass  Fail Addr    Location  Good      Bad       Err        Count
5    3     0002A453310  676.3MB   ffffffe7  fffffff7  00000010   1
5    3     0002E4532f0  740.3MB   ffffffe7  fffffff7  00000010   2

At least it's GSkill memory with lifetime warranty.

Could this single bit error somehow correlate with the address in RCX? (If 
it's there, I don't recognize it.)