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Description of problem: Executing 'systrem_powerdown' through monitor to shutdown a rhel6.1-32 guest, it caused guest soft-lockup. Version-Release number of selected component (if applicable): qemu-kvm-0.12.1.2-2.158.el6.x86_64 guest kernel: 2.6.32-131.0.1.el6.x86_64 host kernel: 2.6.32-131.0.1.el6.x86_64 How reproducible: not always Steps to Reproduce: 1. Boot up a rhel6.1-32 guest 2. execute monitor cmd (qemu) system_powerdown Actual results: guest soft-lockup Expected results: guest can shutdown successfully Additional info: # qemu-kvm -name vm1 -chardev socket,id=qmp_monitor_id_qmpmonitor1,path=/tmp/monitor-qmpmonitor1-20110426-075054-rHtp,server,nowait -mon chardev=qmp_monitor_id_qmpmonitor1,mode=control -chardev socket,id=serial_id_20110426-075054-rHtp,path=/tmp/serial-20110426-075054-rHtp,server,nowait -device isa-serial,chardev=serial_id_20110426-075054-rHtp -drive file=/home/devel/autotest-devel/client/tests/kvm/images/RHEL-Server-6.1-32-virtio.qcow2,index=0,if=none,id=drive-virtio-disk1,media=disk,cache=none,format=qcow2,aio=native -device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk1,id=virtio-disk1 -device virtio-net-pci,netdev=idgaclnb,mac=9a:8a:ec:e1:06:5e,id=ndev00idgaclnb,bus=pci.0,addr=0x3 -netdev tap,id=idgaclnb,vhost=on,ifname=t0-075054-rHtp,script=/home/devel/autotest-devel/client/tests/kvm/scripts/qemu-ifup-switch,downscript=no -m 2048 -smp 2,cores=1,threads=1,sockets=2 -cpu cpu64-rhel6,+sse2,+x2apic -vnc :0 -rtc base=utc,clock=host,driftfix=none -M rhel6.1.0 -boot order=cdn,once=c,menu=off -usbdevice tablet -no-kvm-pit-reinjection -enable-kvm
Created attachment 494775 [details] serial output (it contains panic info)
This may be another case of 668775. I've requested a brew built rpm with the patches from 668775; should re-test with the five patches for smp_call_fcn() lockup.
Please retest with the solution of 668775 which is on_qa
repeat around 300 times, can not reproduce it (2.6.32-131.0.1.el6.x86_64 & qemu-kvm-0.12.1.2-2.159.el6.x86_64), continue to test it.
repeat 1000 times, can not reproduce it, akong can you reproduce it? host: 2.6.32-167.el6.x86_64 qemu-kvm-0.12.1.2-2.171.el6.x86_64 guest: 2.6.32-131.0.15.el6
Hi shuang, I also could not reproduce this bug in 2.6.32-131.0.15.el6 I remembered that the reproduce rate is very low. So could you help to execute this test with latest guest kernel ? we can close this bz if all the tests pass. thanks.
repeat 200 times with guest kernel 2.6.32-131.6.1.el6, can not reproduce it, close it.