Messages in this thread | | | Subject | Re: [PATCH] Mutilated form of Andi Kleen's AMD prefetch errata patch | From | Andi Kleen <> | Date | 01 Oct 2003 09:24:23 +0200 |
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Jamie Lokier <jamie@shareable.org> writes:
> It is easy enough to fix by making the fault handler not take > mmap_sem if the fault's in the kernel address range. (With apologies > to the folk running kernel mode userspace...)
It won't work because kernel can cause user space faults (think get_user). And handling these must be protected.
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