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Subject: Re: Bhyve + Ubuntu change RAM allocation
To: Paul Macdonald <paul@ifdnrg.com>, freebsd-questions@freebsd.org
References: <ec20ce68-9bdb-2433-05ea-289fb4f5758f@ifdnrg.com>
From: CyberLeo Kitsana <cyberleo@cyberleo.net>
Message-ID: <38d16e3e-c988-9885-4918-d61e5b30d823@cyberleo.net>
Date: Wed, 20 Dec 2017 23:57:15 -0600
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On 12/15/2017 04:33 AM, Paul Macdonald wrote:
> 
> Hi
> 
> I have a ubuntu VM installed under Bhyve, but seem unable to change the
> RAM alocation from the current 2GB to 4.
> 
> I have managed to create a 2nd VM with this allocation, but would prefer
> to just allocate ram to the first one
> 
> grub-bhyve  -m device.map -r hd0,msdos1  -M 2048M ubuntu
> bhyve  -w -AI -H -P -s 0:0,hostbridge  \
> -s 1:0,lpc -s 2:0,virtio-net,tap0 \
> -s 3:0,virtio-blk,./ubuntu.img \
> -l com1,stdio -c 2 \
> -m 2048M ubuntu
> 
> i;ve updated to be
> 
> grub-bhyve  -m device.map -r hd0,msdos1  -M 4096M ubuntu
> bhyve  -w -AI -H -P -s 0:0,hostbridge  \
> -s 1:0,lpc -s 2:0,virtio-net,tap0 \
> -s 3:0,virtio-blk,./ubuntu.img \
> -l com1,stdio -c 2 \
> -m 4096M ubuntu
> 
> but it complains about not being able to allocate memory.
> 
> The box is a slightly greedy ZFS box, but even adding 10MB to the
> alocation above givrs rise to a warning re unable to allocate memory,
> failed to start VM.
> 
> (and a 2nd VM was installed fine, and both run with the additional ram,
> so zfs is releasing ok).
> 
> am i missing something?

Are you running this on a 64-bit host, or a 32-bit host? If 32-bit, you
may not be able to allocate more than 2GB RAM to any single process,
including bhyve.

-- 
Fuzzy love,
-CyberLeo

<CyberLeo@CyberLeo.Net>
Technical Administrator

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