Re: [Xen-devel] Fwd: NetBSD xl core-dump not working... Memory fault (core dumped)

[James Harper <james.harper@xxxxxxxxxxxxxxxx>]

I've been working with Mike on this today. After he re-applied the patch 
(something must have gone wrong initially), an ioctl error is repeated 
constantly instead of SIGSEGV:

xc: error: xc_map_foreign_range: ioctl failed (14 = Bad address): Internal error

I dumped out some of the variables though, and:

nr_memory_map = 1
pfn_start = 0, pfn_end = 1048575

this equates to 4GB of pfn's to be dumped on a vm with mem/maxmem = 256MB... is 
there code that skips empty pages? If not, that seems to be the explanation for 
the errors.

James
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