From: Mukesh Rathor <mukesh.rathor@oracle.com>
To: David Vrabel <david.vrabel@citrix.com>,
"boris.ostrovsky@oracle.com" <boris.ostrovsky@oracle.com>,
"Xen-devel@lists.xensource.com" <Xen-devel@lists.xensource.com>
Subject: linux PVH broken in 3.16.0-rc7 (arch_gnttab_map_shared)
Date: Fri, 1 Aug 2014 16:46:19 -0700 [thread overview]
Message-ID: <20140801164619.1a586561@mantra.us.oracle.com> (raw)
Hi,
Not sure if this already got reported, but it appears
commit b7dd0e3
Author: David Vrabel <david.vrabel@citrix.com>
Date: Fri Jul 11 16:42:34 2014 +0100
x86/xen: safely map and unmap grant frames when in atomic context
has broken boot of domU PVH. The reason being arch_gnttab_map_shared
is getting called before gnttab_shared_vm_area gets initialized by
arch_gnttab_init(). As the comment says,
--->
/* Call it _before_ __gnttab_init as we need to initialize the
* * xen_auto_xlat_grant_frames first. */
core_initcall(xen_pvh_gnttab_setup);
<---
we can't wait till arch_gnttab_init is called by __gnttab_init().
I'm also wondering why didn't this get caught by a simple boot test
of PVH domU before this code was merged?
thanks,
Mukesh
next reply other threads:[~2014-08-01 23:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-01 23:46 Mukesh Rathor [this message]
2014-08-04 10:33 ` linux PVH broken in 3.16.0-rc7 (arch_gnttab_map_shared) David Vrabel
2014-08-04 14:46 ` Konrad Rzeszutek Wilk
2014-08-05 11:00 ` David Vrabel
2014-08-06 21:23 ` Mukesh Rathor
2014-08-07 1:44 ` Konrad Rzeszutek Wilk
2014-08-07 9:44 ` David Vrabel
2014-08-07 23:45 ` Mukesh Rathor
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