From mboxrd@z Thu Jan  1 00:00:00 1970
From: Juergen Gross <jgross@suse.com>
Subject: Hypervisor error messages after xl block-detach with
	linux 3.18-rc5
Date: Fri, 21 Nov 2014 09:42:11 +0100
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Hi,

while testing my "linear p2m list" patches I saw the following
problem (even without my patches in place):

In dom0 running linux 3.18-rc5 on top of Xen 4.4.1 I modified the
disk image of a guest by attaching it to dom0:

xl block-attach 0 file:/var/lib/libvirt/images/opensuse13-1/xvda,xvda,w
mount /dev/xvda2 /mnt
...
umount /mnt
xl block-detach 0 xvda

Worked without any problem. After some seconds the following messages
were issued on the console:

(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61110 (pfn 1f3f21c)
(XEN) mm.c:2995:d0 Error while pinning mfn 61110
(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61110 (pfn 1f3f21c)
(XEN) mm.c:906:d0 Attempt to create linear p.t. with write perms
(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61111 (pfn 1f3f21d)
(XEN) mm.c:2995:d0 Error while pinning mfn 61111
(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61111 (pfn 1f3f21d)
(XEN) mm.c:906:d0 Attempt to create linear p.t. with write perms
(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61120 (pfn 1f3f22c)
(XEN) mm.c:2995:d0 Error while pinning mfn 61120
(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61120 (pfn 1f3f22c)
(XEN) mm.c:906:d0 Attempt to create linear p.t. with write perms
(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61121 (pfn 1f3f22d)
(XEN) mm.c:2995:d0 Error while pinning mfn 61121
(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61121 (pfn 1f3f22d)
(XEN) mm.c:906:d0 Attempt to create linear p.t. with write perms
(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61102 (pfn 1f3f20e)
(XEN) mm.c:2995:d0 Error while pinning mfn 61102
(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61102 (pfn 1f3f20e)
(XEN) mm.c:906:d0 Attempt to create linear p.t. with write perms
(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61103 (pfn 1f3f20f)
(XEN) mm.c:2995:d0 Error while pinning mfn 61103
(XEN) mm.c:2352:d0 Bad type (saw 7400000000000002 != exp 
1000000000000000) for mfn 61103 (pfn 1f3f20f)
(XEN) mm.c:906:d0 Attempt to create linear p.t. with write perms

Is this a known issue?


Juergen