>>>>>>>> I tested win-server-2008 with "-cpu >>>>>>>> core2duo,hv_spinlocks=0xffff,hv_relaxed,hv_time", >>>>>>>> this problem still happened, about 200,000 vmexits per-second, >>>>>>>> bringing very bad experience, just like being stuck. >>>>>>> >>>>>>> Please upload a full trace somewhere, or at least the "perf report" >>>>>>> output. >>>>>>> >>>>>> >>>>>> And, if I remove the commit of 0bc830b0, the problem disappeared. >>>>> >>>>> Please send the full trace file. If you compress it, it should be small. >>>>> >>>> See the attach 1, please. >>>> >>>>> Paolo >>> >>> Can you try the follow draft patch to see whether it solve your >>> problem? This patch is based on commit 0bc830b0. >>> >> After applying this patch, VM got stuck with black-screen at boot > >It is works well in my side. And this patch does fix the issue in my box. >I am using window 2008 R2 for testing, here is the qemu cmdline: >qemu-system-x86_64 -enable-kvm -m 4G -smp 4 -net nic,macaddr=00:12:41:41:13:41 -net tap,script=/etc/kvm/qemu-ifup win2k8.qcow > >Can you provide your configuration for me to test? > /usr/bin/kvm -id 2284096534876 -chardev socket,id=qmp,path=/var/run/qemu-server/2284096534876.qmp,server,nowait -mon chardev=qmp,mode=control -vnc :0,websocket,to=200,x509,password -pidfile /var/run/qemu-server/2284096534876.pid -daemonize -name win2008-x64 -smp sockets=1,cores=2 -cpu core2duo,hv_spinlocks=0xffff,hv_relaxed -nodefaults -vga cirrus -no-hpet -k en-us -boot menu=on,splash-time=8000 -m 4096 -usb -drive if=none,id=drive-ide0,media=cdrom,aio=threads -device ide-cd,bus=ide.0,unit=0,drive=drive-ide0,id=ide0,bootindex=100 -drive file=/sf/data/local/images/host-4061863144dc/d23a20df36a5/win2008-x64.vm/vm-disk-1.qcow2,if=none,id=drive-ide1,cache=none,aio=threads -device ide-hd,bus=ide.0,unit=1,drive=drive-ide1,id=ide1 -netdev type=tap,id=net0,ifname=228409653487600,script=/sf/etc/kvm/vtp-bridge,vhost=on,vhostforce=on -device virtio-net-pci,romfile=,mac=FE:FC:FE:99:4C:2E,netdev=net0,bus=pci.0,addr=0x12,id=net0 -rtc driftfix=slew,clock=rt,base=localtime -global kvm-pit.lo st_tick_policy=discard -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -chardev socket,path=/var/run/qemu-server/2284096534876.virtser,server,nowait,id=channelser -device virtio-serial,max_ports=2,ioeventfd=off -device virtserialport,chardev=channelser,name=channelser.virtserial0.0 -bios /sf/share/kvm/bios.bin.1 You can change "-id" option to "-uuid". Thanks, Zhang Haoyu >> stage, # trace-cmd report: >> version = 6 >> CPU 0 is empty >> CPU 1 is empty >> CPU 2 is empty >> CPU 3 is empty >> CPU 5 is empty >> CPU 7 is empty >> cpus=8 >> kvm-1266 [004] 14399.834397: kvm_set_irq: gsi 9 >> level 1 source 0 kvm-1266 [004] 14399.834403: >> kvm_pic_set_irq: chip 1 pin 1 (edge|masked) kvm-1266 >> [004] 14399.834411: kvm_apic_accept_irq: apicid 0 vec 177 >> (LowPrio|level) kvm-1266 [004] 14399.834412: >> kvm_ioapic_set_irq: pin 9 dst 3 vec=177 >> (LowPrio|logical|level) kvm-1266 [004] 14402.180013: >> kvm_set_irq: gsi 9 level 1 source 0 kvm-1266 >> [004] 14402.180019: kvm_pic_set_irq: chip 1 pin 1 >> (edge|masked) kvm-1266 [004] 14402.180028: >> kvm_apic_accept_irq: apicid 1 vec 177 (LowPrio|level) >> kvm-1266 [004] 14402.180029: kvm_ioapic_set_irq: pin 9 >> dst 3 vec=177 (LowPrio|logical|level) kvm-1266 [004] >> 14404.525627: kvm_set_irq: gsi 9 level 1 source 0 >> kvm-1266 [004] 14404.525634: kvm_pic_set_irq: chip 1 >> pin 1 (edge|masked) kvm-1266 [004] 14404.525641: >> kvm_apic_accept_irq: apicid 0 vec 177 (LowPrio|level) >> kvm-1266 [004] 14404.525642: kvm_ioapic_set_irq: pin 9 >> dst 3 vec=177 (LowPrio|logical|level) kvm-1266 [004] >> 14406.871238: kvm_set_irq: gsi 9 level 1 source 0 >> kvm-1266 [004] 14406.871245: kvm_pic_set_irq: chip 1 >> pin 1 (edge|masked) kvm-1266 [004] 14406.871254: >> kvm_apic_accept_irq: apicid 1 vec 177 (LowPrio|level) >> kvm-1266 [004] 14406.871256: kvm_ioapic_set_irq: pin 9 >> dst 3 vec=177 (LowPrio|logical|level) kvm-1266 [006] >> 14409.216849: kvm_set_irq: gsi 9 level 1 source 0 >> kvm-1266 [006] 14409.216855: kvm_pic_set_irq: chip 1 >> pin 1 (edge|masked) kvm-1266 [006] 14409.216862: >> kvm_apic_accept_irq: apicid 0 vec 177 (LowPrio|level) >> kvm-1266 [006] 14409.216863: kvm_ioapic_set_irq: pin 9 >> dst 3 vec=177 (LowPrio|logical|level) kvm-1266 [006] >> 14411.562475: kvm_set_irq: gsi 9 level 1 source 0 >> kvm-1266 [006] 14411.562481: kvm_pic_set_irq: chip 1 >> pin 1 (edge|masked) kvm-1266 [006] 14411.562489: >> kvm_apic_accept_irq: apicid 1 vec 177 (LowPrio|level) >> kvm-1266 [006] 14411.562491: kvm_ioapic_set_irq: pin 9 >> dst 3 vec=177 (LowPrio|logical|level) kvm-1266 [004] >> 14413.908074: kvm_set_irq: gsi 9 level 1 source 0 >> kvm-1266 [004] 14413.908080: kvm_pic_set_irq: chip 1 >> pin 1 (edge|masked) kvm-1266 [004] 14413.908088: >> kvm_apic_accept_irq: apicid 0 vec 177 (LowPrio|level) >> kvm-1266 [004] 14413.908089: kvm_ioapic_set_irq: pin 9 >> dst 3 vec=177 (LowPrio|logical|level) >> >> Thanks, >> Zhang Haoyu >> >Best regards, >Yang -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
