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(In reply to Fam Zheng from comment #6)
> No. That bz touched drive-mirror and (active) block-commit, nothing changed
> in block-stream.
Cool and thx for the confirmation.
Best Regards,
Junyi
Description of problem: guest black screen and kvm_stat is 0 when reboot guest after block stream finished Version-Release number of selected component (if applicable): kernel-3.10.0-123.8.1.el7.x86_64 qemu-kvm-rhev-1.5.3-60.el7_0.7.x86_64 How reproducible: only once on rhel.7.0.z host (1 / 11) Steps to Reproduce: 1. boot a win2012r2 guest: -device virtio-scsi-pci,id=virtio_scsi_pci0,bus=pci.0,addr=06 \ -drive id=drive_image1,if=none,cache=none,snapshot=off,aio=native,file=/home/staf-kvm-devel/autotest-devel/client/tests/virt/shared/data/images/win2012-64r2-virtio.qcow2 \ -device scsi-hd,id=image1,drive=drive_image1 \ -device virtio-net-pci,mac=9a:70:71:72:73:74,id=id8G6GXJ,vectors=4,netdev=idQduRnO,bus=pci.0,addr=07 \ 2. do 'snapshot_blkdev': 08/28 07:19:44 DEBUG|qemu_monit:0267| (monitor qmpmonitor1) Sending command 'blockdev-snapshot-sync' 08/28 07:19:44 DEBUG|qemu_monit:1372| Send command: {'execute': 'blockdev-snapshot-sync', 'arguments': {'device': u'drive_image1', 'snapshot-file': '/home/staf-kvm-devel/autotest-devel/client/tests/virt/shared/data/images/sn1', 'format': 'qcow2'}, 'id': '9Gpneq6i'} 08/28 07:19:44 INFO | aexpect:0968| [qemu output] Formatting '/home/staf-kvm-devel/autotest-devel/client/tests/virt/shared/data/images/sn1', fmt=qcow2 size=32212254720 backing_file='/home/staf-kvm-devel/autotest-devel/client/tests/virt/shared/data/images/win2012-64r2-virtio.qcow2' backing_fmt='qcow2' encryption=off cluster_size=65536 lazy_refcounts=off 3. block stream 08/28 07:19:45 DEBUG|qemu_monit:0267| (monitor qmpmonitor1) Sending command 'block-stream' 08/28 07:19:45 DEBUG|qemu_monit:1372| Send command: {'execute': 'block-stream', 'arguments': {'device': u'drive_image1', 'speed': 10485760}, 'id': '9EsCFyAG'} 4. reboot guest after block stream finished Actual results: guest black screen and kvm_stat is 0 when reboot guest after block stream finished Expected results: guest works well after reboot Additional info: 1. as this bug is not easy to reproduce, have not reproduced it on RHEL.7.1 (qemu-kvm-rhev). qemu-kvm-rhev-2.1.0-3.el7.x86_64 2. Qemu CML: /bin/qemu-kvm \ -S \ -name 'virt-tests-vm1' \ -sandbox off \ -M pc \ -nodefaults \ -vga qxl \ -global qxl-vga.vram_size=33554432 \ -device intel-hda,bus=pci.0,addr=03 \ -device hda-duplex \ -chardev socket,id=qmp_id_qmpmonitor1,path=/tmp/monitor-qmpmonitor1-20140828-071940-jGEXTa9d,server,nowait \ -mon chardev=qmp_id_qmpmonitor1,mode=control \ -chardev socket,id=serial_id_serial0,path=/tmp/serial-serial0-20140828-071940-jGEXTa9d,server,nowait \ -device isa-serial,chardev=serial_id_serial0 \ -device virtio-serial-pci,id=virtio_serial_pci0,bus=pci.0,addr=04 \ -chardev socket,id=devvs,path=/tmp/virtio_port-vs-20140828-071940-jGEXTa9d,server,nowait \ -device virtserialport,chardev=devvs,name=vs,id=vs,bus=virtio_serial_pci0.0 \ -chardev socket,id=seabioslog_id_20140828-071940-jGEXTa9d,path=/tmp/seabios-20140828-071940-jGEXTa9d,server,nowait \ -device isa-debugcon,chardev=seabioslog_id_20140828-071940-jGEXTa9d,iobase=0x402 \ -device nec-usb-xhci,id=usb1,bus=pci.0,addr=05 \ -device virtio-scsi-pci,id=virtio_scsi_pci0,bus=pci.0,addr=06 \ -drive id=drive_image1,if=none,cache=none,snapshot=off,aio=native,file=/home/staf-kvm-devel/autotest-devel/client/tests/virt/shared/data/images/win2012-64r2-virtio.qcow2 \ -device scsi-hd,id=image1,drive=drive_image1 \ -device virtio-net-pci,mac=9a:70:71:72:73:74,id=id8G6GXJ,vectors=4,netdev=idQduRnO,bus=pci.0,addr=07 \ -netdev tap,id=idQduRnO,vhost=on,vhostfd=23,fd=22 \ -m 8192 \ -smp 8,maxcpus=8,cores=4,threads=1,sockets=2 \ -cpu 'Opteron_G4',+kvm_pv_unhalt,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time \ -drive id=drive_cd1,if=none,snapshot=off,aio=native,media=cdrom,file=/home/staf-kvm-devel/autotest-devel/client/tests/virt/shared/data/isos/windows/winutils.iso \ -device ide-cd,id=cd1,drive=drive_cd1,bus=ide.0,unit=0 \ -device usb-tablet,id=usb-tablet1,bus=usb1.0,port=1 \ -spice port=3000,password=123456,addr=0,tls-port=3200,x509-dir=/tmp/spice_x509d,tls-channel=main,tls-channel=inputs,image-compression=auto_glz,zlib-glz-wan-compression=auto,streaming-video=all,agent-mouse=on,playback-compression=on,ipv4 \ -rtc base=localtime,clock=host,driftfix=slew \ -boot order=cdn,once=c,menu=off \ -enable-kvm 3. host info: processor : 23 vendor_id : AuthenticAMD cpu family : 21 model : 1 model name : AMD Opteron(TM) Processor 6234 stepping : 2 microcode : 0x6000626 cpu MHz : 2400.059 cache size : 2048 KB physical id : 1 siblings : 12 core id : 5 cpu cores : 6 apicid : 75 initial apicid : 43 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 cx16 sse4_1 sse4_2 popcnt aes xsave avx lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 nodeid_msr topoext perfctr_core perfctr_nb arat cpb hw_pstate npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bogomips : 4799.76 TLB size : 1536 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm 100mhzsteps hwpstate cpb