[Qemu-devel] find_prop() assertion failed

[Qemu-devel] find_prop() assertion failed

[Luiz Capitulino]

 Hi Paul,

 By starting QEMU with the following command:

~/bin/qemu/bin/qemu -hda root_fs-qemu -kernel bzImage -append "root=/dev/sda console=ttyS0,115200 console=tty 4" -monitor telnet:localhost:4555,server -snapshot

 And the running telnet on another terminal:

~/ telnet localhost 4555

 I get 100% of CPU for a while and the following assertion is trigged:

qemu: /home/lcapitulino/src/qemu-qmp/hw/qdev.c:194: find_prop: Assertion `prop->type == type' failed.

 It works if I revert 1431b6a17e6546569e09bcf8fb7773c925658d8f. Stack
backtrace follows (although I'm not sure whether it's needed/helps):

"""
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb7bdada0 in raise () from /lib/i686/libc.so.6
#2  0xb7bdc808 in abort () from /lib/i686/libc.so.6
#3  0xb7bd3cde in __assert_fail () from /lib/i686/libc.so.6
#4  0x080f7d14 in find_prop (dev=<value optimized out>, name=0x81afc52 "data", 
#5  0x080f7da6 in qdev_get_prop_ptr (dev=0x97cd4e8, name=0x81afc52 "data")
#6  0x080cf24a in smbus_eeprom_init (dev=0x97cd4e8)
#7  0x080f7957 in qdev_init (dev=0x97cd4e8) at /home/lcapitulino/src/qemu-qmp/hw/qdev.c:113
#8  0x0808b240 in pc_init1 (ram_size=<value optimized out>, boot_device=0x819453a "cad", 
Cannot access memory at address 0x493f
#9  0x08052e27 in main (argc=10, argv=0xbfe09f44, envp=)
"""

-- 
Luiz

Re: [Qemu-devel] find_prop() assertion failed

[Alex Williamson]

On Fri, Jun 5, 2009 at 11:45 AM, Luiz Capitulino <lcapitulino@redhat.com> wrote:
>
>  Hi Paul,
>
>  By starting QEMU with the following command:
>
> ~/bin/qemu/bin/qemu -hda root_fs-qemu -kernel bzImage -append "root=/dev/sda console=ttyS0,115200 console=tty 4" -monitor telnet:localhost:4555,server -snapshot
>
>  And the running telnet on another terminal:
>
> ~/ telnet localhost 4555
>
>  I get 100% of CPU for a while and the following assertion is trigged:
>
> qemu: /home/lcapitulino/src/qemu-qmp/hw/qdev.c:194: find_prop: Assertion `prop->type == type' failed.
>
>  It works if I revert 1431b6a17e6546569e09bcf8fb7773c925658d8f. Stack
> backtrace follows (although I'm not sure whether it's needed/helps):

Yep, me too.  I can't figure out any incantation of qemu-system-x86_64
that works with this patch.

Alex