From: Keir Fraser <keir@xensource.com>
To: Koripella Srinivas <talkwithsrinivas@yahoo.co.in>,
xen-devel@lists.xensource.com
Subject: Re: Grant Tables & mm.c
Date: Wed, 04 Jul 2007 11:20:35 +0100 [thread overview]
Message-ID: <C2B13303.11D93%keir@xensource.com> (raw)
In-Reply-To: <843247.49816.qm@web94111.mail.in2.yahoo.com>
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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@yahoo.co.in> 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
>
>
>
>
> Here¹s a new way to find what you're looking for - Yahoo! Answers
> <http://us.rd.yahoo.com/mail/in/yanswers/*http://in.answers.yahoo.com/>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
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next prev parent reply other threads:[~2007-07-04 10:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-04 10:16 Grant Tables & mm.c Koripella Srinivas
2007-07-04 10:20 ` Keir Fraser [this message]
2007-07-04 18:42 ` Jeremy Fitzhardinge
2007-07-04 19:04 ` Keir Fraser
2007-07-04 14:13 ` Mark Williamson
[not found] <469219.20698.qm@web94111.mail.in2.yahoo.com>
2007-07-06 4:25 ` Mark Williamson
-- strict thread matches above, loose matches on Subject: below --
2007-07-07 13:44 Koripella Srinivas
2007-07-07 15:19 ` Derek Murray
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