Re: 2.6.21-rc7-mm2 crash: Eeek! page_mapcount(page) went negative!(-1)

[Hugh Dickins]

On Sat, 28 Apr 2007, Andrew Morton wrote:
> 
> It seems wildly screwed up that we have a PageReserved() page with a pfn of
> zero (!) which claims to be in a reiserfs mapping, only it isn't attached
> to a reiserfs file.  How the heck did that happen?

It's "simply" that it somehow got a spurious page table entry 00000001.
Great that it's so reproducible, I take that to mean this one is not
bad RAM.  Your request for a bisection is just what we want, thanks.

Hugh
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/