Re: [Xen-devel] Grant Tables & mm.c

[Keir Fraser <keir@xxxxxxxxxxxxx>]

You must explicitly unmap grants. So the domain which uses GNTTABOP_map_grant_ref must subsequently unmap it with GNTTABOP_unmap_grant_ref. You cannot just zap the pte!

 -- Keir

On 4/7/07 11:16, "Koripella Srinivas" <talkwithsrinivas@xxxxxxxxxxx> wrote:

Hi,
I am using grant tables to set up a shared memory between two guests.
One problem i am facing is that as soon as the shared memory is set up one of the domain crashes with the log message
 "Attempt to implicitly unmap a granted PTE".
the message is from function "put_page_from_l1e" in mm.c(arch/x86).

what could be the reason? Any pointers would be of great help

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