[PANIC, hyperv] BUG: unable to handle kernel paging request at ffff880077800004 (hv_ringbuffer_write)

Dan Carpenter dan.carpenter at oracle.com
Fri Aug 29 10:24:11 UTC 2014


On Fri, Aug 29, 2014 at 10:16:32AM +0000, Dexuan Cui wrote:
> Hi Dan,
> 
> Section 4.11.3 of Hypervisor Top Level Functional Specification(available at
> http://blogs.msdn.com/b/virtual_pc_guy/archive/2014/02/17/updated-hypervisor-top-level-functional-specification.aspx)
> says HV_STATUS_INVALID_ALIGNMENT can also be returned for a hypercall if
> "the specified input or output parameter lists spans pages."
> 
> My understanding is: the input's memory range shouldn't cross a page
> boundary.

Ah.  That makes sense then.  Thanks.

regards,
dan carpenter



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