Debian 8 freeze when the number of virtual processors> 1

[Илья]

Hi. Sorry for my English

If the number of processors allocated is greater than 1 - Debian freezes in 1 of 3 cases after run OpenArena. Just sometimes it hangs just at the start of KDE, but rarely.

I tried any paravirtualization option - one result - hangs.

If set to 1 CPU - the system is stable.

Data:
AMD Phenom 6x 1090T, 4GB Ram, GeForce 210 (512Mb)
Host: Windows 8.1 64 bit + VirtualBox 5.0.16 r105871
Guest: Debian 8.3 64bit (stable branch, updated)

3D acceleration, VT-X/AMD-V, Nestes Paging - enabled.

in archive1 (bug logs (>1 virt cpu)) in arhive2 (normal logs (1 virt cpu))

[mpack]

6 cores is every core in the system. You can't assign them all to the guest. You can't starve the host of CPU and expect it to run well!

What are you doing in the guest that needs so many cores anyway? 2 is plenty for most guests.

I'm also concerned by the shortage of RAM in this host.

You might also be having a problem with unsigned OpenGL drivers, I'm not sure.

[Илья]

so many kernels were necessary for multithreaded programming openmp
well and it is just esthetically pleasant to watch curves in the gnome-systems-monitor

It is seemingly possible to leave to the guest as much of processors how many and to a host

By this machine I одновременн launch Debian (1896Mb), FreeBSD (386 Mb) and freebsd works stablly with 6 kernels and hyper-v. But Debiab - freeze (

Also I launch some games and programs on a host

If the system lacks memory - Windows speaks about it in a popup window and suggests to close some programs. So I think memory a little, but is enough.

on video as all this loads a host

[Илья]

this issue has been fixed in the following updates