Date: Tue, 5 Mar 2019 19:41:02 +0100 From: Miroslav Lachman <000.fbsd@quip.cz> To: vbox@FreeBSD.org, freebsd-emulation@freebsd.org Subject: VBoxHeadless eats 100% CPU even if guest OS is idle Message-ID: <21d46be1-e520-1b93-c079-1626cb015708@quip.cz>
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We are using virtualbox-ose-kmod-5.2.22 and virtualbox-ose-nox11-5.2.22_1 on the FreeBSD 11.2-RELEASE-p7 amd64 host with 3 guests. 1 guest runs FreeBSD 11.2, 2 guests are Ubuntu mini. Today I noticed 2 of 3 guests eat 100% CPU even if they are doing nothing. The FreeBSD guest is just IPSec gateway for two Ubuntu guests. If I enter the guest I see it is 99.9% idle. # top in FreeBSD guest 27 processes: 1 running, 26 sleeping CPU: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle Mem: 13M Active, 724M Inact, 12M Laundry, 194M Wired, 103M Buf, 22M Free # top in FreeBSD host CPU: 3.7% user, 0.0% nice, 14.7% system, 0.0% interrupt, 81.6% idle Mem: 352M Active, 17G Inact, 315M Laundry, 5153M Wired, 1572M Buf, 951M Free Swap: 16G Total, 59M Used, 16G Free PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND 793 vboxusers 22 20 0 1161M 1081M select 0 969.0H 102.69% VBoxHeadless 3878 vboxusers 20 20 0 672M 595M select 0 775.7H 101.44% VBoxHeadless According to usage graphs this problem is there for about 40 days but host and all guest have uptime 61 days. Each guest has 1 CPU, 768M RAM. I found the exactly same problem on testing machine, FreeBSD 11.2 + VirtualBox 5.2.22 also. Just one guest doing nothing and VBoxHeadless eating 100% CPU. Is it some know problem? Is there a way to fix / workaround it? Is it fixed in newer version of VirtualBox? I never have this problem before. Kind regards Miroslav Lachman
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