Date: Tue, 22 Sep 2015 17:13:42 +0200 From: Martin Birgmeier <la5lbtyi@aon.at> To: Mark Felder <feld@FreeBSD.org>, freebsd-emulation@freebsd.org Subject: Re: VirtualBox mangles memory Message-ID: <56017026.6040809@aon.at> In-Reply-To: <1442866256.1127084.389759513.29E96282@webmail.messagingengine.com> References: <55FE9662.7000406@aon.at> <1442866256.1127084.389759513.29E96282@webmail.messagingengine.com>
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This did not happen when the machine was running FreeBSD 9.2 with virtualbox-ose-4.3.20 installed. So I would not qualify this as "known behavior". One server has 16G main memory, a VM gets 3G. The other has 8G main mem and again 3G allocated to the VM. This is definitely a bug in how VirtualBox handles memory on FreeBSD 10. I am pretty sure that something changed in FBSD 10 which was not properly taken care of in VB. -- Martin On 09/21/15 22:10, Mark Felder wrote: > > On Sun, Sep 20, 2015, at 06:20, Martin Birgmeier wrote: >> On machines where VirtualBox is running, I get memory allocation errors. >> >> 'dd' aborts with 'dd: stdout: Cannot allocate memory' >> >> 'zfs send' aborts with 'internal error: Cannot allocate memory' >> >> I have created https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195970 >> to track this. >> >> Could a knowledgeable person please have a look into this? >> >> FreeBSD 10.2, VirtualBox 4.3.30 >> >> -- Martin >> > I'm not an expert, but I think this is known behavior. Virtualbox > requires a huge contiguous chunk of memory for the VM and that's > probably what you're running into. > > Can you give more information about the specs of the server itself and > the amount of resources allocated to VMs? >
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