Re: [Qemu-devel] apparently missing yet another notify_event()

[Michael Tokarev]

On 14.09.2012 18:47, Michael Tokarev wrote:
[]
>>  qemu-kvm -nographic -kernel /boot/vmlinuz-$(uname -r) -append console=ttyS0 
>> -serial pty
>>
>> This hangs till I send a char to the pty.
> 
> And it is even _more_ twisted than that.
> 
> It depends on the timing.  If I connect to the pty "too soon",
> it will not stall.
> 
> But if I wait for ~2 seconds or more before connecting, both
> qemu and qemu-kvm (and so current qemu/master too) will hang,
> requiring a keypress on the pty for the guest to start booting.

(For upstream qemu, it only happens with -enable-kvm, not in
tcg mode).

> Hwell.
> 
> /mjt