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| (gdb) b cpus.c:1421 Breakpoint 1 at 0x237720: file /home/wujing/code/qemu/cpus.c, line 1425. (gdb) c The program is not being run. (gdb) r Starting program: /home/wujing/code/qemu/build/x86_64-softmmu/qemu-system-x86_64 --enable-kvm -m 2048 -kernel /home/wujing/code/linux/arch/x86/boot/bzImage -hda /home/wujing/code/qemu-img/bionic.img -append root=/dev/sda\ rootfstype=ext4\ rw\ console=ttyS0\ nokaslr -nographic [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7ffff59fa700 (LWP 19433)] [New Thread 0x7ffff51f9700 (LWP 19434)] WARNING: Image format was not specified for '/home/wujing/code/qemu-img/bionic.img' and probing guessed raw. Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted. Specify the 'raw' format explicitly to remove the restrictions.
Thread 1 "qemu-system-x86" hit Breakpoint 1, qemu_kvm_start_vcpu (cpu=0x5555565ab4b0) at /home/wujing/code/qemu/cpus.c:1425 1425 cpu->thread = g_malloc0(sizeof(QemuThread)); (gdb) bt #0 qemu_kvm_start_vcpu (cpu=0x5555565ab4b0) at /home/wujing/code/qemu/cpus.c:1425 #1 qemu_init_vcpu (cpu=cpu@entry=0x5555565ab4b0) at /home/wujing/code/qemu/cpus.c:1470 #2 0x0000555555834a4a in x86_cpu_realizefn (dev=0x5555565ab4b0, errp=0x7fffffffdcf0) at /home/wujing/code/qemu/target-i386/cpu.c:3361 #3 0x00005555558dbb65 in device_set_realized (obj=<optimized out>, value=<optimized out>, errp=0x7fffffffdde0) at /home/wujing/code/qemu/hw/core/qdev.c:918 #4 0x0000555555a01f2e in property_set_bool (obj=0x5555565ab4b0, v=<optimized out>, name=<optimized out>, opaque=0x55555659e2a0, errp=0x7fffffffdde0) at /home/wujing/code/qemu/qom/object.c:1854 #5 0x0000555555a05da1 in object_property_set_qobject (obj=obj@entry=0x5555565ab4b0, value=value@entry=0x5555565c68b0, name=name@entry=0x555555b187ab "realized", errp=errp@entry=0x7fffffffdde0) at /home/wujing/code/qemu/qom/qom-qobject.c:27 #6 0x0000555555a03c40 in object_property_set_bool (obj=0x5555565ab4b0, value=<optimized out>, name=0x555555b187ab "realized", errp=0x7fffffffdde0) at /home/wujing/code/qemu/qom/object.c:1157 #7 0x00005555557f0d6e in pc_new_cpu (typename=typename@entry=0x555556506200 "qemu64-x86_64-cpu", apic_id=0, errp=0x5555564ee820 <error_fatal>) at /home/wujing/code/qemu/hw/i386/pc.c:1099 #8 0x00005555557f407c in pc_cpus_init (pcms=pcms@entry=0x555556581970) at /home/wujing/code/qemu/hw/i386/pc.c:1188 #9 0x00005555557f6de3 in pc_init1 (machine=0x555556581970, pci_type=0x555555b54084 "i440FX", host_type=0x555555adcc01 "i440FX-pcihost") at /home/wujing/code/qemu/hw/i386/pc_piix.c:149 #10 0x000055555588358d in main (argc=11, argv=0x7fffffffe2b8, envp=0x7fffffffe318) at /home/wujing/code/qemu/vl.c:4548 (gdb) i b Num Type Disp Enb Address What 1 breakpoint keep y 0x000055555578b720 in qemu_kvm_start_vcpu at /home/wujing/code/qemu/cpus.c:1425 breakpoint already hit 1 time
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