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Description of problem: core dumped Version-Release number of selected component (if applicable): # rpm -q qemu-kvm qemu-kvm-0.12.1.2-2.113.el6_0.1.x86_64 # uname -r 2.6.32-71.1.1.el6_0.x86_64 # rpm -q spice-server spice-server-0.4.2-15.el6.x86_64 How reproducible: 100% Steps to Reproduce: 1. startup a guset first: /usr/libexec/qemu-kvm \ -name vm \ -M rhel6.0.0 \ -cpu cpu64-rhel6 \ -boot d \ -enable-kvm \ -m 1024 \ -smp 2 \ -usb \ -vga cirrus \ -device AC97,id=sound0,bus=pci.0,addr=0x4 \ -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 \ -chardev socket,id=human_monitor_20100917143046,path=/tmp/monitor-20100917143046,server,nowait \ -mon chardev=human_monitor_20100917143046,mode=readline \ -chardev socket,id=serial_20100917143046,path=/tmp/serial-20100917143046,server,nowait \ -device isa-serial,chardev=serial_20100917143046 \ -drive file=/tmp/20100917143046.qcow2,index=0,if=none,id=drive-0-0,media=disk,cache=none,boot=on,format=qcow2 \ -device virtio-blk-pci,bus=pci.0,addr=0x5,drive=drive-0-0,id=virtio-disk0 \ -device rtl8139,netdev=20100917143046,id=20100917143046,mac=02:C6:F5:F9:8e:b1,bus=pci.0,addr=0x3 \ -netdev tap,id=20100917143046,ifname=rtl8139,script=no,downscript=no \ -drive file=/media/file-90-116/iso/ISO/Win2003/32/en_win_srv_2003_r2_enterprise_with_sp2_cd1_X13-05460.iso,index=1,if=none,id=drive-ide0-0-1,media=cdrom,readonly=on,format=raw \ -device ide-drive,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1 \ -fda /home/virtio-win-1.1.15.vfd \ -vnc :0 \ -spice port=8000,disable-ticketing \ -rtc base=localtime,clock=host,driftfix=none 2. startup another guest: /usr/libexec/qemu-kvm -name 'vm' -M rhel6.0.0 -cpu $CPU -boot d -enable-kvm -m 1024 -smp 2 -usb -vga cirrus -device AC97,id=sound0,bus=pci.0,addr=0x4 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 -chardev socket,id=human_monitor_$NOW,path=/tmp/monitor-$NOW,server,nowait -mon chardev=human_monitor_$NOW,mode=readline -chardev socket,id=serial_$NOW,path=/tmp/serial-$NOW,server,nowait -device isa-serial,chardev=serial_$NOW -drive file=/tmp/$NOW.qcow2,index=0,if=none,id=drive-0-0,media=disk,cache=none,boot=on,format=qcow2 -device virtio-blk-pci,bus=pci.0,addr=0x5,drive=drive-0-0,id=virtio-disk0 -device rtl8139,netdev=$NOW,id=$NOW,mac='02:C6:F5:F9:8e:b1',bus=pci.0,addr=0x3 -netdev tap,id=$NOW,ifname=$NOW,script='no',downscript='no' -drive file=$CDROM,index=1,if=none,id=drive-ide0-0-1,media=cdrom,readonly=on,format=raw -device ide-drive,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1 -vnc :$VNC -spice port=8000,disable-ticketing -rtc base=localtime,clock=host,driftfix=none 3.qemu-kvm crash. Actual results: backtrace: (gdb) bt #0 0x0000003aecc329a5 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 #1 0x0000003aecc34185 in abort () at abort.c:92 #2 0x0000003aefc14c9e in reds_init_socket (portnr=8000, family=<value optimized out>, addr=0x297560 <Address 0x297560 out of bounds>) at reds.c:3153 #3 0x0000003aefc1a8fb in reds_init_net (core_interface=<value optimized out>) at reds.c:3171 #4 do_spice_init (core_interface=<value optimized out>) at reds.c:5479 #5 0x0000003aefc1aff5 in spice_server_init (s=<value optimized out>, core=<value optimized out>) at reds.c:5511 #6 0x0000000000470dcf in qemu_spice_init () at /usr/src/debug/qemu-kvm-0.12.1.2/spice.c:438 #7 0x000000000040dd35 in main (argc=<value optimized out>, argv=<value optimized out>, envp=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:6396 Expected results: qemu-kvm will not crash. Additional info: