From: Michael Tokarev <mjt@tls.msk.ru>
To: qemu-devel <qemu-devel@nongnu.org>,
Anthony Liguori <aliguori@us.ibm.com>
Subject: Re: [Qemu-devel] apparently missing yet another notify_event()
Date: Fri, 14 Sep 2012 18:49:29 +0400 [thread overview]
Message-ID: <505343F9.7020009@msgid.tls.msk.ru> (raw)
In-Reply-To: <5053438F.9000601@msgid.tls.msk.ru>
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
next prev parent reply other threads:[~2012-09-14 14:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-03 18:13 [Qemu-devel] apparently missing yet another notify_event() Michael Tokarev
2012-09-04 6:53 ` Paolo Bonzini
2012-09-04 6:58 ` Michael Tokarev
2012-09-14 14:17 ` Michael Tokarev
2012-09-14 14:47 ` Michael Tokarev
2012-09-14 14:49 ` Michael Tokarev [this message]
2012-09-14 15:47 ` Michael Tokarev
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