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Date:      Sat, 22 Nov 2014 19:57:07 -0800
From:      Peter Grehan <grehan@freebsd.org>
To:        Shawn Webb <lattera@gmail.com>
Cc:        freebsd-virtualization@freebsd.org
Subject:   Re: bhyve cannot allocate memory
Message-ID:  <54715B13.9020303@freebsd.org>
In-Reply-To: <CADt0fhxCv3DneeoVewGEz7%2BQ53gqDNENJKD2-CH6Sxz=PFT3ig@mail.gmail.com>
References:  <20141122215245.d9380cc4e43cb5e60d479009@gmail.com>	<20141122220202.09523b0ae828993174af05d8@gmail.com>	<5471513C.6040400@freebsd.org>	<CADt0fhxEavv5e6tbmORxUZgPNGQNZiu2O=PtO6aKhW%2B_fkRSZQ@mail.gmail.com>	<54715438.3090905@freebsd.org>	<CADt0fhxFzqKbw7kndeUVQaVeJ_jj=-yNUgvD6ntn7hM3YGqCLA@mail.gmail.com>	<54715822.2010309@freebsd.org>	<CADt0fhwTSci31wwq8UoN2JpUGHKgLNiDXymZQyeWYFVd4i7PJA@mail.gmail.com>	<54715911.1090100@freebsd.org> <CADt0fhxCv3DneeoVewGEz7%2BQ53gqDNENJKD2-CH6Sxz=PFT3ig@mail.gmail.com>

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Hi Shawn,

> Interesting. I'll have to do more digging. Because removing map_at_zero
> support is the same as keeping it at the default of 0. It's not possible
> that our ASLR implementation is affecting bhyve, since our ASLR
> implementation is in sys_mmap and the elf image activator. At this
> stage, bhyve's vmm.ko is directly accessing vm_map_*, which we haven't
> touched.

  One thing you may be able to try is ktrace the bhyveload process and 
see which syscall is failing.

later,

Peter.




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