Re: [Qemu-devel] Fwd: Guest hangs when I do general operation.

[Amos Kong]

On Wed, Sep 8, 2010 at 1:55 AM, Blue Swirl <address@hidden> wrote:
> On Tue, Sep 7, 2010 at 2:43 AM, Amos Kong <address@hidden> wrote:
>>
>> kvm upstream: 43e413f7db1a4a90671dda0b1d6c1f8cb30673ed KVM: Whitespace
>> changes to remove differences wrt kvm-updates/2.6.37
>> qemu upstream: cb93bbdd7db92e50ff5e60a346b23df68acae46b Fix OpenBSD
>> linker warning
>>
>> # ./x86_64-softmmu/qemu-system-x86_64 ~/win7-32.qcow2 -m 1024 -vnc :0
>> -usbdevice tablet -cpu qemu64 -snapshot -enable-kvm -bios pc-bios/bios.bin
>>
>> Guest hangs when I do general operation.
>> It's fine when using upstream qemu-kvm.  this problem only occurred
>> one time when I debug by gdb, after execute 'continue', guest runs
>> normally.
>>
>> debug msg of (qemu + kvm)
>> (gdb) c
>> Continuing.
>>
>> Program received signal SIGUSR2, User defined signal 2.
>
> This is normal, we use SIGUSR2 for AIO. By default, GDB stops and
> prints a message about the signal. The same thing can happen with
> SIGALRM.
>
> GDB command 'handle SIGUSR2 nostop noprint pass' lets the program
> continue without stopping.

If ignore this signal in gdb, guest could not break.
Thanks