Messages in this thread | | | Subject | Re: [stable] [PATCH 00/12] xen/paravirt_ops patches for 2.6.24 | From | Zachary Amsden <> | Date | Mon, 15 Oct 2007 16:48:44 -0700 |
| |
On Tue, 2007-10-16 at 00:03 +0200, Andi Kleen wrote: > > Subject: [PATCH 12/12] xfs: eagerly remove vmap mappings to avoid > > upsetting Xen > > This should be probably done unconditionally because it's a undefined > dangerous condition everywhere.
Should be done unconditionally. One could remap the underlying physical space to include an MMIO region, and speculative reads from the cacheable virtual mapping of that region could move the robot arm, destroying the world.
Zach
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |