Re: [Xen-devel] Hypervisor error messages after xl block-detach with linux 3.18-rc5

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Fri, Nov 21, 2014 at 09:42:11AM +0100, Juergen Gross wrote:
> 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?

No. First time I see it.
> 
> 
> Juergen
> 
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