[Qemu-devel] Regression commit 6e008585 qdev: remove info from class

[Markus Armbruster]

Before:

    $ qemu-system-x86_64 -display none -drive if=ide
    qemu-system-x86_64: Device needs media, but drive is empty
    qemu-system-x86_64: Initialization of device ide-hd failed
    [Exit 1 ]

After:

    $ qemu-system-x86_64 -display none -drive if=ide
    qemu-system-x86_64: Device needs media, but drive is empty
    Segmentation fault (core dumped)
    [Exit 139 (SIGSEGV)]

Debugger says:

Program received signal SIGSEGV, Segmentation fault.
0x00000000005878d9 in object_get_typename (obj=0x13b26e0)
    at /home/armbru/work/qemu/qom/object.c:441
441         return obj->class->type->name;

#0  0x00000000005878d9 in object_get_typename (obj=0x13b26e0)
    at /home/armbru/work/qemu/qom/object.c:441
#1  0x000000000056c28d in qdev_init_nofail (dev=0x13b26e0)
    at /home/armbru/work/qemu/hw/qdev.c:517
#2  0x00000000004f1079 in ide_create_drive (bus=0x13ae978, unit=0, drive=
    0x12b4550) at /home/armbru/work/qemu/hw/ide/qdev.c:108
#3  0x00000000004f00d8 in pci_ide_create_devs (dev=0x13ae530, hd_table=
    0x7fffffffdc50) at /home/armbru/work/qemu/hw/ide/pci.c:503
#4  0x00000000004f0a82 in pci_piix3_ide_init (bus=0x1305170, hd_table=
    0x7fffffffdc50, devfn=9) at /home/armbru/work/qemu/hw/ide/piix.c:225
#5  0x000000000067006b in pc_init1 (system_memory=0x12b4140, system_io=
    0x12b4230, ram_size=134217728, boot_device=0x7fffffffe010 "cad", 
    kernel_filename=0x0, kernel_cmdline=0x797d4a "", initrd_filename=0x0, 
    cpu_model=0x0, pci_enabled=1, kvmclock_enabled=1)
    at /home/armbru/work/qemu/hw/pc_piix.c:257
#6  0x0000000000670385 in pc_init_pci (ram_size=134217728, boot_device=
    0x7fffffffe010 "cad", kernel_filename=0x0, kernel_cmdline=0x797d4a "", 
    initrd_filename=0x0, cpu_model=0x0)
    at /home/armbru/work/qemu/hw/pc_piix.c:319
#7  0x0000000000543408 in main (argc=5, argv=0x7fffffffe138, envp=
    0x7fffffffe168) at /home/armbru/work/qemu/vl.c:3387