On 05/06/18 18:16, Ian Jackson wrote:
> 2018-05-30 22:12:49.320+0000: xc: Failed to get types for pfn batch (14 = Bad 
> address): Internal error

This is worrying me.

The message is issued as a result of xc_get_pfn_type_batch() failing.
I see no other possibility for the failure with errno being 14 (EFAULT)
than the hypervisor failing a copy from/to guest for either struct
xen_domctl or the pfn array passed via struct xen_domctl (op
XEN_DOMCTL_getpageframeinfo3). Both should be accessible as they have
been correctly declared via DECLARE_HYPERCALL_BOUNCE() in xc_private.c.

Any ideas how that could have happened?


Juergen

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