Date: Fri, 08 Feb 2013 19:39:40 +1000 From: Peter Grehan <grehan@freebsd.org> To: Sevan / Venture37 <venture37@gmail.com> Cc: freebsd-virtualization@freebsd.org Subject: Re: bhyve hangs on going multi user Message-ID: <5114C7DC.6070106@freebsd.org> In-Reply-To: <5114C5B5.8030209@gmail.com> References: <51132599.60506@gmail.com> <CAFgRE9FHHZ0cEDNiTMLxhz8Y=c_XAQoK67H67qqFCKj0Z3CSeA@mail.gmail.com> <CA29856C-B61D-4404-A81D-880F9C4CB3EA@gmail.com> <51136892.1020505@gmail.com> <CE612499-11F6-4985-B8EF-D559E584F24C@gmail.com> <CAFgRE9Fscbz_9zLEf8buj5MAghD2gV9=B5PHVwYThPiadwy5Yw@mail.gmail.com> <5114361F.8060303@gmail.com> <51146575.2080602@freebsd.org> <5114C5B5.8030209@gmail.com>
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Hi Sevan, >>> I can now make a guest panic if I assign 4GB or more RAM. >> >> What are the memory params you are using in this case ? > > I've not made any changes on the host such as reserving memory. > I'm starting the VM like so: ... > -m 4096 Ah - that actually won't work. There has to be space for PCI MMIO decode below 4GB, so it's usually best to use up to say 2 or 3GB of RAM below the 4GB mark, leaving 1GB for PCI decode, and then put the remainder of your memory above 4G e.g. for 4GB total RAM, and using 2GB below 4G -m 2048 -M 2048 and an example 8G system: -m 2048 -M 6144 We should really error out on values too large for the '-m' parameter. later, Peter.
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