Re: VirtualBox mangles memory

2015-09-22 Thread Mark Felder
On Tue, Sep 22, 2015, at 15:57, Michael Butler wrote: > On 09/22/15 16:20, Adam Vande More wrote: > > On Tue, Sep 22, 2015 at 2:26 PM, Martin Birgmeier wrote: > > >> I am quite sure that the > >> cause is to be found there > >> > > > > I don't see any cause for surety in the info you have give

Re: VirtualBox mangles memory

2015-09-22 Thread Michael Butler
On 09/22/15 16:20, Adam Vande More wrote: > On Tue, Sep 22, 2015 at 2:26 PM, Martin Birgmeier wrote: >> I am quite sure that the >> cause is to be found there >> > > I don't see any cause for surety in the info you have given us. Have you > tried any basic steps like monitoring usage during the

Re: VirtualBox mangles memory

2015-09-22 Thread Adam Vande More
On Tue, Sep 22, 2015 at 2:26 PM, Martin Birgmeier wrote: > I don't think it is related to zfs. The 8GB machine did not even have > zfs loaded or a zfs file system when I first reported the problem. (The > problem with 'zfs send' only happened recently on the 16GB machine.) > > I'd like to know wh

Re: VirtualBox mangles memory

2015-09-22 Thread Martin Birgmeier
I don't think it is related to zfs. The 8GB machine did not even have zfs loaded or a zfs file system when I first reported the problem. (The problem with 'zfs send' only happened recently on the 16GB machine.) I'd like to know what has changed between FBSD 9 and 10 regarding memory management and

Re: VirtualBox mangles memory

2015-09-22 Thread Bernhard Fröhlich
To me this sounds a lot like vbox and zfs arc are fighting for resources. What does the memory line in top look like when this problem happens? A simple workaround would be to limit zfs arc in loader.conf if that is the problem. Am 22.09.2015 5:13 nachm. schrieb "Martin Birgmeier" : > > This did

Re: VirtualBox mangles memory

2015-09-22 Thread Martin Birgmeier
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 VirtualB