I'm run kvm-72 in debian 5.0(lenny) amd64, dell 2950. Only OpenBSD-x64 vm has such problem, the Linux-x64 vm running good.
2009/1/7 tico <[email protected]>: > Dongsheng, > > I've been able to reproduce (what appears to be) your problem on my i386 kvm > box. > In my case, using CPU scaling (apmd) on my OpenBSD client would cause it to > get screwy and lose the clock source if I alternately let it run idle and > then ran a bunch of CPU or I/O intensive tasks on it. > > Some googling appears that this is a known problem with some versions of KVM > not emulating the RTC correctly, though I'm not 100% sure, as I'm not a KVM > developer. Folks have recommended disabling HPET in the BIOS and/or making > sure that the host linux kernel has HPET_EMULATE_RTC set in the .config > though I experienced this problem with my OpenBSD guests even with that > option set in the hosting linux kernel. > > In my case, I found that not enabling apmd at all (and rebooting the guests > where I *had* enabled it, even once) made the problem much more bearable. > Basically if the machine is mostly idle I never get the "Alternate system > clock has died" message on 'systat -w1 vmstat', and it doesn't lock up > anymore like it did when apmd was running. > > Now the only issues I have are that under high load I occasionally get > em0: watchdog timeout -- resetting > em0: watchdog timeout -- resetting > em0: watchdog timeout -- resetting > messages on the console when using the e1000 NIC emulation, but it doesn't > seem to be too severe right now, and is only occurring when I'm serving a > decent bit of data (55-68mbps SSH/rsync data). > > Best of luck, > -Tico > > Dongsheng Song wrote: >> >> When I running OpenBSD under kvm, process time aways 0 ! >> >> [dongsh...@dl:~/kvm]% cat OpenBSD-x64/start.sh [09-01-05 >> 21:53:50] >> #!/bin/sh >> >> cd /home/dongsheng/kvm/OpenBSD-x64 >> >> kvm -name OpenBSD-x64 -m 1024M -hda hda.img \ >> -cdrom ../../var/iso/openbsd-amd64-4_4-20081215.iso \ >> -net nic,vlan=0,macaddr=52:54:00:12:34:01,model=e1000 \ >> -net tap,vlan=0,ifname=tap01,script=no \ >> -net nic,vlan=1,macaddr=52:54:00:12:34:11,model=e1000 \ >> -net tap,vlan=1,ifname=tap11,script=no \ >> -vnc :11 -daemonize >> >> [dongsh...@x64:~]% w [09-01-05 >> 21:53:17] >> 9:53PM up 16 days, 13:30, 1 user, load averages: 0.08, 0.08, 0.08 >> USER TTY FROM LOGIN@ IDLE WHAT >> dongsheng p0 116.23.101.68 9:53PM 0 w >> >> load averages: 0.06, 0.08, 0.08 >> 21:53:37 >> 17 processes: 16 idle, 1 on processor >> CPU states: 1.1% user, 0.3% nice, 11.0% system, 7.9% interrupt, 79.7% >> idle >> Memory: Real: 11M/134M act/tot Free: 852M Swap: 0K/2055M used/tot >> >> PID USERNAME PRI NICE SIZE RES STATE WAIT TIME CPU COMMAND >> 8430 root 2 0 1188K 2032K sleep select 0:00 0.00% >> sendmail >> 26190 root 2 0 696K 1344K idle select 0:00 0.00% sshd >> 26396 _syslogd 2 0 452K 824K sleep poll 0:00 0.00% syslogd >> 26716 root 2 0 472K 884K idle select 0:00 0.00% cron >> 16624 root 2 0 400K 868K idle select 0:00 0.00% inetd >> 1 root 10 0 360K 364K idle wait 0:00 0.00% init >> 21396 dongshen 2 0 340K 1416K idle select 0:00 0.00% >> ssh-agent >> 13401 dongshen 18 0 976K 3132K sleep pause 0:00 0.00% zsh >> 10013 root 2 0 3372K 3092K idle netio 0:00 0.00% sshd >> 7279 root 2 0 420K 740K idle netio 0:00 0.00% syslogd >> 20347 dongshen 28 0 448K 1496K onproc - 0:00 0.00% top >> 15854 dongshen 2 0 3344K 2180K sleep select 0:00 0.00% sshd >> >> 2009/1/4 Michiel van Baak <[email protected]>: >> >>> >>> On 09:41, Sat 03 Jan 09, Daniel A. Ramaley wrote: >>> >>> Running OpenBSD under VirtualBox is not stable at all. >>> I have good experience running OpenBSD under xen, kvm and vmware-server.
